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From lewi...@apache.org
Subject [19/37] gora git commit: Add avro serialization support
Date Wed, 23 Aug 2017 20:55:17 GMT
Add avro serialization support


Project: http://git-wip-us.apache.org/repos/asf/gora/repo
Commit: http://git-wip-us.apache.org/repos/asf/gora/commit/a51b719c
Tree: http://git-wip-us.apache.org/repos/asf/gora/tree/a51b719c
Diff: http://git-wip-us.apache.org/repos/asf/gora/diff/a51b719c

Branch: refs/heads/master
Commit: a51b719cb265ec63f9699f74b498efc0d27c1920
Parents: 4343982
Author: madhawa <madhawa30@gmail.com>
Authored: Tue Jul 25 00:09:57 2017 +0530
Committer: madhawa <madhawa30@gmail.com>
Committed: Tue Jul 25 00:09:57 2017 +0530

----------------------------------------------------------------------
 .../src/examples/avro/cassandraKey.json         |   21 +
 .../src/examples/avro/cassandraRecord.json      |  106 ++
 .../avroSerialization/CassandraKey.java         |  380 +++++
 .../avroSerialization/CassandraRecord.java      | 1293 ++++++++++++++++++
 .../gora/cassandra/bean/CassandraKey.java       |   21 +-
 .../gora/cassandra/bean/ClusterKeyField.java    |   16 +-
 .../gora/cassandra/query/CassandraColumn.java   |   51 -
 .../cassandra/query/CassandraResultSet.java     |    4 +
 .../gora/cassandra/query/CassandraRow.java      |   79 --
 .../serializers/AvroCassandraUtils.java         |  274 ++++
 .../cassandra/serializers/AvroSerializer.java   |  250 +++-
 .../serializers/CassandraQueryFactory.java      |  327 ++++-
 .../serializers/CassandraSerializer.java        |   47 +-
 .../cassandra/serializers/NativeSerializer.java |   43 +-
 .../gora/cassandra/store/CassandraMapping.java  |   67 +-
 .../store/CassandraMappingBuilder.java          |   32 +-
 .../gora/cassandra/store/CassandraStore.java    |    2 +-
 .../test/conf/avro/gora-cassandra-mapping.xml   |   49 +-
 .../compositeKey/gora-cassandra-mapping.xml     |   31 +-
 .../src/test/conf/gora-cassandra-mapping.xml    |    2 +-
 .../TestCassandraStoreWithCassandraKey.java     |  210 +++
 ...stCassandraStoreWithNativeSerialization.java |    4 +-
 22 files changed, 2954 insertions(+), 355 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/gora/blob/a51b719c/gora-cassandra-cql/src/examples/avro/cassandraKey.json
----------------------------------------------------------------------
diff --git a/gora-cassandra-cql/src/examples/avro/cassandraKey.json b/gora-cassandra-cql/src/examples/avro/cassandraKey.json
new file mode 100644
index 0000000..6db3127
--- /dev/null
+++ b/gora-cassandra-cql/src/examples/avro/cassandraKey.json
@@ -0,0 +1,21 @@
+{
+  "type": "record",
+  "name": "CassandraKey",
+  "default": null,
+  "namespace": "org.apache.gora.cassandra.example.generated.avroSerialization",
+  "fields": [
+    {
+      "name": "url",
+      "type": [
+        "null",
+        "string"
+      ],
+      "default": null
+    },
+    {
+      "name": "timestamp",
+      "type": "long",
+      "default": 0
+    }
+  ]
+}

http://git-wip-us.apache.org/repos/asf/gora/blob/a51b719c/gora-cassandra-cql/src/examples/avro/cassandraRecord.json
----------------------------------------------------------------------
diff --git a/gora-cassandra-cql/src/examples/avro/cassandraRecord.json b/gora-cassandra-cql/src/examples/avro/cassandraRecord.json
new file mode 100644
index 0000000..bd741cd
--- /dev/null
+++ b/gora-cassandra-cql/src/examples/avro/cassandraRecord.json
@@ -0,0 +1,106 @@
+{
+  "type": "record",
+  "name": "CassandraRecord",
+  "default": null,
+  "namespace": "org.apache.gora.cassandra.example.generated.avroSerialization",
+  "fields": [
+    {
+      "name": "dataString",
+      "type": "string",
+      "default": ""
+    },
+    {
+      "name": "dataInt",
+      "type": "int",
+      "default": 0
+    },
+    {
+      "name": "dataLong",
+      "type": [
+        "null",
+        "long"
+      ],
+      "default": null
+    },
+    {
+      "name": "dataDouble",
+      "type": [
+        "null",
+        "double"
+      ],
+      "default": null
+    },
+    {
+      "name": "dataBytes",
+      "type": [
+        "null",
+        "bytes"
+      ],
+      "default": null
+    },
+    {
+      "name": "arrayInt",
+      "type": {
+        "type": "array",
+        "items": "int"
+      },
+      "default": null
+    },
+    {
+      "name": "arrayString",
+      "type": {
+        "type": "array",
+        "items": "string"
+      },
+      "default": null
+    },
+    {
+      "name": "arrayLong",
+      "type": {
+        "type": "array",
+        "items": "long"
+      },
+      "default": null
+    },
+    {
+      "name": "arrayDouble",
+      "type": {
+        "type": "array",
+        "items": "double"
+      },
+      "default": null
+    },
+    {
+      "name": "mapInt",
+      "type": {
+        "type": "map",
+        "values": "int"
+      },
+      "default": {}
+    },
+    {
+      "name": "mapString",
+      "type": {
+        "type": "map",
+        "values": "string"
+      },
+      "default": {}
+    },
+    {
+      "name": "mapLong",
+      "type": {
+        "type": "map",
+        "values": "long"
+      },
+      "default": {}
+    },
+    {
+      "name": "mapDouble",
+      "type": {
+        "type": "map",
+        "values": "double"
+      },
+      "default": {}
+    }
+  ]
+}

http://git-wip-us.apache.org/repos/asf/gora/blob/a51b719c/gora-cassandra-cql/src/examples/java/org/apache/gora/cassandra/example/generated/avroSerialization/CassandraKey.java
----------------------------------------------------------------------
diff --git a/gora-cassandra-cql/src/examples/java/org/apache/gora/cassandra/example/generated/avroSerialization/CassandraKey.java b/gora-cassandra-cql/src/examples/java/org/apache/gora/cassandra/example/generated/avroSerialization/CassandraKey.java
new file mode 100644
index 0000000..ffe4aff
--- /dev/null
+++ b/gora-cassandra-cql/src/examples/java/org/apache/gora/cassandra/example/generated/avroSerialization/CassandraKey.java
@@ -0,0 +1,380 @@
+/**
+ *Licensed to the Apache Software Foundation (ASF) under one
+ *or more contributor license agreements.  See the NOTICE file
+ *distributed with this work for additional information
+ *regarding copyright ownership.  The ASF licenses this file
+ *to you under the Apache License, Version 2.0 (the"
+ *License"); you may not use this file except in compliance
+ *with the License.  You may obtain a copy of the License at
+ *
+  * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *Unless required by applicable law or agreed to in writing, software
+ *distributed under the License is distributed on an "AS IS" BASIS,
+ *WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *See the License for the specific language governing permissions and
+ *limitations under the License.
+ */
+package org.apache.gora.cassandra.example.generated.avroSerialization;  
+
+public class CassandraKey extends org.apache.gora.persistency.impl.PersistentBase implements org.apache.avro.specific.SpecificRecord, org.apache.gora.persistency.Persistent {
+  public static final org.apache.avro.Schema SCHEMA$ = new org.apache.avro.Schema.Parser().parse("{\"type\":\"record\",\"name\":\"CassandraKey\",\"namespace\":\"org.apache.gora.cassandra.example.generated.avroSerialization\",\"fields\":[{\"name\":\"url\",\"type\":[\"null\",\"string\"],\"default\":null},{\"name\":\"timestamp\",\"type\":\"long\",\"default\":0}],\"default\":null}");
+  private static final long serialVersionUID = -2302778495178225103L;
+  /** Enum containing all data bean's fields. */
+  public static enum Field {
+    URL(0, "url"),
+    TIMESTAMP(1, "timestamp"),
+    ;
+    /**
+     * Field's index.
+     */
+    private int index;
+
+    /**
+     * Field's name.
+     */
+    private String name;
+
+    /**
+     * Field's constructor
+     * @param index field's index.
+     * @param name field's name.
+     */
+    Field(int index, String name) {this.index=index;this.name=name;}
+
+    /**
+     * Gets field's index.
+     * @return int field's index.
+     */
+    public int getIndex() {return index;}
+
+    /**
+     * Gets field's name.
+     * @return String field's name.
+     */
+    public String getName() {return name;}
+
+    /**
+     * Gets field's attributes to string.
+     * @return String field's attributes to string.
+     */
+    public String toString() {return name;}
+  };
+
+  public static final String[] _ALL_FIELDS = {
+  "url",
+  "timestamp",
+  };
+
+  /**
+   * Gets the total field count.
+   * @return int field count
+   */
+  public int getFieldsCount() {
+    return CassandraKey._ALL_FIELDS.length;
+  }
+
+  private java.lang.CharSequence url;
+  private long timestamp;
+  public org.apache.avro.Schema getSchema() { return SCHEMA$; }
+  // Used by DatumWriter.  Applications should not call. 
+  public java.lang.Object get(int field$) {
+    switch (field$) {
+    case 0: return url;
+    case 1: return timestamp;
+    default: throw new org.apache.avro.AvroRuntimeException("Bad index");
+    }
+  }
+  
+  // Used by DatumReader.  Applications should not call. 
+  @SuppressWarnings(value="unchecked")
+  public void put(int field$, java.lang.Object value) {
+    switch (field$) {
+    case 0: url = (java.lang.CharSequence)(value); break;
+    case 1: timestamp = (java.lang.Long)(value); break;
+    default: throw new org.apache.avro.AvroRuntimeException("Bad index");
+    }
+  }
+
+  /**
+   * Gets the value of the 'url' field.
+   */
+  public java.lang.CharSequence getUrl() {
+    return url;
+  }
+
+  /**
+   * Sets the value of the 'url' field.
+   * @param value the value to set.
+   */
+  public void setUrl(java.lang.CharSequence value) {
+    this.url = value;
+    setDirty(0);
+  }
+  
+  /**
+   * Checks the dirty status of the 'url' field. A field is dirty if it represents a change that has not yet been written to the database.
+   * @param value the value to set.
+   */
+  public boolean isUrlDirty() {
+    return isDirty(0);
+  }
+
+  /**
+   * Gets the value of the 'timestamp' field.
+   */
+  public java.lang.Long getTimestamp() {
+    return timestamp;
+  }
+
+  /**
+   * Sets the value of the 'timestamp' field.
+   * @param value the value to set.
+   */
+  public void setTimestamp(java.lang.Long value) {
+    this.timestamp = value;
+    setDirty(1);
+  }
+  
+  /**
+   * Checks the dirty status of the 'timestamp' field. A field is dirty if it represents a change that has not yet been written to the database.
+   * @param value the value to set.
+   */
+  public boolean isTimestampDirty() {
+    return isDirty(1);
+  }
+
+  /** Creates a new CassandraKey RecordBuilder */
+  public static org.apache.gora.cassandra.example.generated.avroSerialization.CassandraKey.Builder newBuilder() {
+    return new org.apache.gora.cassandra.example.generated.avroSerialization.CassandraKey.Builder();
+  }
+  
+  /** Creates a new CassandraKey RecordBuilder by copying an existing Builder */
+  public static org.apache.gora.cassandra.example.generated.avroSerialization.CassandraKey.Builder newBuilder(org.apache.gora.cassandra.example.generated.avroSerialization.CassandraKey.Builder other) {
+    return new org.apache.gora.cassandra.example.generated.avroSerialization.CassandraKey.Builder(other);
+  }
+  
+  /** Creates a new CassandraKey RecordBuilder by copying an existing CassandraKey instance */
+  public static org.apache.gora.cassandra.example.generated.avroSerialization.CassandraKey.Builder newBuilder(org.apache.gora.cassandra.example.generated.avroSerialization.CassandraKey other) {
+    return new org.apache.gora.cassandra.example.generated.avroSerialization.CassandraKey.Builder(other);
+  }
+  
+  private static java.nio.ByteBuffer deepCopyToReadOnlyBuffer(
+      java.nio.ByteBuffer input) {
+    java.nio.ByteBuffer copy = java.nio.ByteBuffer.allocate(input.capacity());
+    int position = input.position();
+    input.reset();
+    int mark = input.position();
+    int limit = input.limit();
+    input.rewind();
+    input.limit(input.capacity());
+    copy.put(input);
+    input.rewind();
+    copy.rewind();
+    input.position(mark);
+    input.mark();
+    copy.position(mark);
+    copy.mark();
+    input.position(position);
+    copy.position(position);
+    input.limit(limit);
+    copy.limit(limit);
+    return copy.asReadOnlyBuffer();
+  }
+  
+  /**
+   * RecordBuilder for CassandraKey instances.
+   */
+  public static class Builder extends org.apache.avro.specific.SpecificRecordBuilderBase<CassandraKey>
+    implements org.apache.avro.data.RecordBuilder<CassandraKey> {
+
+    private java.lang.CharSequence url;
+    private long timestamp;
+
+    /** Creates a new Builder */
+    private Builder() {
+      super(org.apache.gora.cassandra.example.generated.avroSerialization.CassandraKey.SCHEMA$);
+    }
+    
+    /** Creates a Builder by copying an existing Builder */
+    private Builder(org.apache.gora.cassandra.example.generated.avroSerialization.CassandraKey.Builder other) {
+      super(other);
+    }
+    
+    /** Creates a Builder by copying an existing CassandraKey instance */
+    private Builder(org.apache.gora.cassandra.example.generated.avroSerialization.CassandraKey other) {
+            super(org.apache.gora.cassandra.example.generated.avroSerialization.CassandraKey.SCHEMA$);
+      if (isValidValue(fields()[0], other.url)) {
+        this.url = (java.lang.CharSequence) data().deepCopy(fields()[0].schema(), other.url);
+        fieldSetFlags()[0] = true;
+      }
+      if (isValidValue(fields()[1], other.timestamp)) {
+        this.timestamp = (java.lang.Long) data().deepCopy(fields()[1].schema(), other.timestamp);
+        fieldSetFlags()[1] = true;
+      }
+    }
+
+    /** Gets the value of the 'url' field */
+    public java.lang.CharSequence getUrl() {
+      return url;
+    }
+    
+    /** Sets the value of the 'url' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraKey.Builder setUrl(java.lang.CharSequence value) {
+      validate(fields()[0], value);
+      this.url = value;
+      fieldSetFlags()[0] = true;
+      return this; 
+    }
+    
+    /** Checks whether the 'url' field has been set */
+    public boolean hasUrl() {
+      return fieldSetFlags()[0];
+    }
+    
+    /** Clears the value of the 'url' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraKey.Builder clearUrl() {
+      url = null;
+      fieldSetFlags()[0] = false;
+      return this;
+    }
+    
+    /** Gets the value of the 'timestamp' field */
+    public java.lang.Long getTimestamp() {
+      return timestamp;
+    }
+    
+    /** Sets the value of the 'timestamp' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraKey.Builder setTimestamp(long value) {
+      validate(fields()[1], value);
+      this.timestamp = value;
+      fieldSetFlags()[1] = true;
+      return this; 
+    }
+    
+    /** Checks whether the 'timestamp' field has been set */
+    public boolean hasTimestamp() {
+      return fieldSetFlags()[1];
+    }
+    
+    /** Clears the value of the 'timestamp' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraKey.Builder clearTimestamp() {
+      fieldSetFlags()[1] = false;
+      return this;
+    }
+    
+    @Override
+    public CassandraKey build() {
+      try {
+        CassandraKey record = new CassandraKey();
+        record.url = fieldSetFlags()[0] ? this.url : (java.lang.CharSequence) defaultValue(fields()[0]);
+        record.timestamp = fieldSetFlags()[1] ? this.timestamp : (java.lang.Long) defaultValue(fields()[1]);
+        return record;
+      } catch (Exception e) {
+        throw new org.apache.avro.AvroRuntimeException(e);
+      }
+    }
+  }
+  
+  public CassandraKey.Tombstone getTombstone(){
+  	return TOMBSTONE;
+  }
+
+  public CassandraKey newInstance(){
+    return newBuilder().build();
+  }
+
+  private static final Tombstone TOMBSTONE = new Tombstone();
+  
+  public static final class Tombstone extends CassandraKey implements org.apache.gora.persistency.Tombstone {
+  
+      private Tombstone() { }
+  
+	  		  /**
+	   * Gets the value of the 'url' field.
+		   */
+	  public java.lang.CharSequence getUrl() {
+	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
+	  }
+	
+	  /**
+	   * Sets the value of the 'url' field.
+		   * @param value the value to set.
+	   */
+	  public void setUrl(java.lang.CharSequence value) {
+	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
+	  }
+	  
+	  /**
+	   * Checks the dirty status of the 'url' field. A field is dirty if it represents a change that has not yet been written to the database.
+		   * @param value the value to set.
+	   */
+	  public boolean isUrlDirty() {
+	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
+	  }
+	
+				  /**
+	   * Gets the value of the 'timestamp' field.
+		   */
+	  public java.lang.Long getTimestamp() {
+	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
+	  }
+	
+	  /**
+	   * Sets the value of the 'timestamp' field.
+		   * @param value the value to set.
+	   */
+	  public void setTimestamp(java.lang.Long value) {
+	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
+	  }
+	  
+	  /**
+	   * Checks the dirty status of the 'timestamp' field. A field is dirty if it represents a change that has not yet been written to the database.
+		   * @param value the value to set.
+	   */
+	  public boolean isTimestampDirty() {
+	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
+	  }
+	
+		  
+  }
+
+  private static final org.apache.avro.io.DatumWriter
+            DATUM_WRITER$ = new org.apache.avro.specific.SpecificDatumWriter(SCHEMA$);
+  private static final org.apache.avro.io.DatumReader
+            DATUM_READER$ = new org.apache.avro.specific.SpecificDatumReader(SCHEMA$);
+
+  /**
+   * Writes AVRO data bean to output stream in the form of AVRO Binary encoding format. This will transform
+   * AVRO data bean from its Java object form to it s serializable form.
+   *
+   * @param out java.io.ObjectOutput output stream to write data bean in serializable form
+   */
+  @Override
+  public void writeExternal(java.io.ObjectOutput out)
+          throws java.io.IOException {
+    out.write(super.getDirtyBytes().array());
+    DATUM_WRITER$.write(this, org.apache.avro.io.EncoderFactory.get()
+            .directBinaryEncoder((java.io.OutputStream) out,
+                    null));
+  }
+
+  /**
+   * Reads AVRO data bean from input stream in it s AVRO Binary encoding format to Java object format.
+   * This will transform AVRO data bean from it s serializable form to deserialized Java object form.
+   *
+   * @param in java.io.ObjectOutput input stream to read data bean in serializable form
+   */
+  @Override
+  public void readExternal(java.io.ObjectInput in)
+          throws java.io.IOException {
+    byte[] __g__dirty = new byte[getFieldsCount()];
+    in.read(__g__dirty);
+    super.setDirtyBytes(java.nio.ByteBuffer.wrap(__g__dirty));
+    DATUM_READER$.read(this, org.apache.avro.io.DecoderFactory.get()
+            .directBinaryDecoder((java.io.InputStream) in,
+                    null));
+  }
+  
+}
+

http://git-wip-us.apache.org/repos/asf/gora/blob/a51b719c/gora-cassandra-cql/src/examples/java/org/apache/gora/cassandra/example/generated/avroSerialization/CassandraRecord.java
----------------------------------------------------------------------
diff --git a/gora-cassandra-cql/src/examples/java/org/apache/gora/cassandra/example/generated/avroSerialization/CassandraRecord.java b/gora-cassandra-cql/src/examples/java/org/apache/gora/cassandra/example/generated/avroSerialization/CassandraRecord.java
new file mode 100644
index 0000000..4a92882
--- /dev/null
+++ b/gora-cassandra-cql/src/examples/java/org/apache/gora/cassandra/example/generated/avroSerialization/CassandraRecord.java
@@ -0,0 +1,1293 @@
+/**
+ *Licensed to the Apache Software Foundation (ASF) under one
+ *or more contributor license agreements.  See the NOTICE file
+ *distributed with this work for additional information
+ *regarding copyright ownership.  The ASF licenses this file
+ *to you under the Apache License, Version 2.0 (the"
+ *License"); you may not use this file except in compliance
+ *with the License.  You may obtain a copy of the License at
+ *
+  * http://www.apache.org/licenses/LICENSE-2.0
+ * 
+ *Unless required by applicable law or agreed to in writing, software
+ *distributed under the License is distributed on an "AS IS" BASIS,
+ *WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *See the License for the specific language governing permissions and
+ *limitations under the License.
+ */
+package org.apache.gora.cassandra.example.generated.avroSerialization;  
+
+public class CassandraRecord extends org.apache.gora.persistency.impl.PersistentBase implements org.apache.avro.specific.SpecificRecord, org.apache.gora.persistency.Persistent {
+  public static final org.apache.avro.Schema SCHEMA$ = new org.apache.avro.Schema.Parser().parse("{\"type\":\"record\",\"name\":\"CassandraRecord\",\"namespace\":\"org.apache.gora.cassandra.example.generated.avroSerialization\",\"fields\":[{\"name\":\"dataString\",\"type\":\"string\",\"default\":\"\"},{\"name\":\"dataInt\",\"type\":\"int\",\"default\":0},{\"name\":\"dataLong\",\"type\":[\"null\",\"long\"],\"default\":null},{\"name\":\"dataDouble\",\"type\":[\"null\",\"double\"],\"default\":null},{\"name\":\"dataBytes\",\"type\":[\"null\",\"bytes\"],\"default\":null},{\"name\":\"arrayInt\",\"type\":{\"type\":\"array\",\"items\":\"int\"},\"default\":null},{\"name\":\"arrayString\",\"type\":{\"type\":\"array\",\"items\":\"string\"},\"default\":null},{\"name\":\"arrayLong\",\"type\":{\"type\":\"array\",\"items\":\"long\"},\"default\":null},{\"name\":\"arrayDouble\",\"type\":{\"type\":\"array\",\"items\":\"double\"},\"default\":null},{\"name\":\"mapInt\",\"type\":{\"type\":\"map\",\"valu
 es\":\"int\"},\"default\":{}},{\"name\":\"mapString\",\"type\":{\"type\":\"map\",\"values\":\"string\"},\"default\":{}},{\"name\":\"mapLong\",\"type\":{\"type\":\"map\",\"values\":\"long\"},\"default\":{}},{\"name\":\"mapDouble\",\"type\":{\"type\":\"map\",\"values\":\"double\"},\"default\":{}}],\"default\":null}");
+  private static final long serialVersionUID = 5865822911454498901L;
+  /** Enum containing all data bean's fields. */
+  public static enum Field {
+    DATA_STRING(0, "dataString"),
+    DATA_INT(1, "dataInt"),
+    DATA_LONG(2, "dataLong"),
+    DATA_DOUBLE(3, "dataDouble"),
+    DATA_BYTES(4, "dataBytes"),
+    ARRAY_INT(5, "arrayInt"),
+    ARRAY_STRING(6, "arrayString"),
+    ARRAY_LONG(7, "arrayLong"),
+    ARRAY_DOUBLE(8, "arrayDouble"),
+    MAP_INT(9, "mapInt"),
+    MAP_STRING(10, "mapString"),
+    MAP_LONG(11, "mapLong"),
+    MAP_DOUBLE(12, "mapDouble"),
+    ;
+    /**
+     * Field's index.
+     */
+    private int index;
+
+    /**
+     * Field's name.
+     */
+    private String name;
+
+    /**
+     * Field's constructor
+     * @param index field's index.
+     * @param name field's name.
+     */
+    Field(int index, String name) {this.index=index;this.name=name;}
+
+    /**
+     * Gets field's index.
+     * @return int field's index.
+     */
+    public int getIndex() {return index;}
+
+    /**
+     * Gets field's name.
+     * @return String field's name.
+     */
+    public String getName() {return name;}
+
+    /**
+     * Gets field's attributes to string.
+     * @return String field's attributes to string.
+     */
+    public String toString() {return name;}
+  };
+
+  public static final String[] _ALL_FIELDS = {
+  "dataString",
+  "dataInt",
+  "dataLong",
+  "dataDouble",
+  "dataBytes",
+  "arrayInt",
+  "arrayString",
+  "arrayLong",
+  "arrayDouble",
+  "mapInt",
+  "mapString",
+  "mapLong",
+  "mapDouble",
+  };
+
+  /**
+   * Gets the total field count.
+   * @return int field count
+   */
+  public int getFieldsCount() {
+    return CassandraRecord._ALL_FIELDS.length;
+  }
+
+  private java.lang.CharSequence dataString;
+  private int dataInt;
+  private java.lang.Long dataLong;
+  private java.lang.Double dataDouble;
+  private java.nio.ByteBuffer dataBytes;
+  private java.util.List<java.lang.Integer> arrayInt;
+  private java.util.List<java.lang.CharSequence> arrayString;
+  private java.util.List<java.lang.Long> arrayLong;
+  private java.util.List<java.lang.Double> arrayDouble;
+  private java.util.Map<java.lang.CharSequence,java.lang.Integer> mapInt;
+  private java.util.Map<java.lang.CharSequence,java.lang.CharSequence> mapString;
+  private java.util.Map<java.lang.CharSequence,java.lang.Long> mapLong;
+  private java.util.Map<java.lang.CharSequence,java.lang.Double> mapDouble;
+  public org.apache.avro.Schema getSchema() { return SCHEMA$; }
+  // Used by DatumWriter.  Applications should not call. 
+  public java.lang.Object get(int field$) {
+    switch (field$) {
+    case 0: return dataString;
+    case 1: return dataInt;
+    case 2: return dataLong;
+    case 3: return dataDouble;
+    case 4: return dataBytes;
+    case 5: return arrayInt;
+    case 6: return arrayString;
+    case 7: return arrayLong;
+    case 8: return arrayDouble;
+    case 9: return mapInt;
+    case 10: return mapString;
+    case 11: return mapLong;
+    case 12: return mapDouble;
+    default: throw new org.apache.avro.AvroRuntimeException("Bad index");
+    }
+  }
+  
+  // Used by DatumReader.  Applications should not call. 
+  @SuppressWarnings(value="unchecked")
+  public void put(int field$, java.lang.Object value) {
+    switch (field$) {
+    case 0: dataString = (java.lang.CharSequence)(value); break;
+    case 1: dataInt = (java.lang.Integer)(value); break;
+    case 2: dataLong = (java.lang.Long)(value); break;
+    case 3: dataDouble = (java.lang.Double)(value); break;
+    case 4: dataBytes = (java.nio.ByteBuffer)(value); break;
+    case 5: arrayInt = (java.util.List<java.lang.Integer>)((value instanceof org.apache.gora.persistency.Dirtyable) ? value : new org.apache.gora.persistency.impl.DirtyListWrapper((java.util.List)value)); break;
+    case 6: arrayString = (java.util.List<java.lang.CharSequence>)((value instanceof org.apache.gora.persistency.Dirtyable) ? value : new org.apache.gora.persistency.impl.DirtyListWrapper((java.util.List)value)); break;
+    case 7: arrayLong = (java.util.List<java.lang.Long>)((value instanceof org.apache.gora.persistency.Dirtyable) ? value : new org.apache.gora.persistency.impl.DirtyListWrapper((java.util.List)value)); break;
+    case 8: arrayDouble = (java.util.List<java.lang.Double>)((value instanceof org.apache.gora.persistency.Dirtyable) ? value : new org.apache.gora.persistency.impl.DirtyListWrapper((java.util.List)value)); break;
+    case 9: mapInt = (java.util.Map<java.lang.CharSequence,java.lang.Integer>)((value instanceof org.apache.gora.persistency.Dirtyable) ? value : new org.apache.gora.persistency.impl.DirtyMapWrapper((java.util.Map)value)); break;
+    case 10: mapString = (java.util.Map<java.lang.CharSequence,java.lang.CharSequence>)((value instanceof org.apache.gora.persistency.Dirtyable) ? value : new org.apache.gora.persistency.impl.DirtyMapWrapper((java.util.Map)value)); break;
+    case 11: mapLong = (java.util.Map<java.lang.CharSequence,java.lang.Long>)((value instanceof org.apache.gora.persistency.Dirtyable) ? value : new org.apache.gora.persistency.impl.DirtyMapWrapper((java.util.Map)value)); break;
+    case 12: mapDouble = (java.util.Map<java.lang.CharSequence,java.lang.Double>)((value instanceof org.apache.gora.persistency.Dirtyable) ? value : new org.apache.gora.persistency.impl.DirtyMapWrapper((java.util.Map)value)); break;
+    default: throw new org.apache.avro.AvroRuntimeException("Bad index");
+    }
+  }
+
+  /**
+   * Gets the value of the 'dataString' field.
+   */
+  public java.lang.CharSequence getDataString() {
+    return dataString;
+  }
+
+  /**
+   * Sets the value of the 'dataString' field.
+   * @param value the value to set.
+   */
+  public void setDataString(java.lang.CharSequence value) {
+    this.dataString = value;
+    setDirty(0);
+  }
+  
+  /**
+   * Checks the dirty status of the 'dataString' field. A field is dirty if it represents a change that has not yet been written to the database.
+   * @param value the value to set.
+   */
+  public boolean isDataStringDirty() {
+    return isDirty(0);
+  }
+
+  /**
+   * Gets the value of the 'dataInt' field.
+   */
+  public java.lang.Integer getDataInt() {
+    return dataInt;
+  }
+
+  /**
+   * Sets the value of the 'dataInt' field.
+   * @param value the value to set.
+   */
+  public void setDataInt(java.lang.Integer value) {
+    this.dataInt = value;
+    setDirty(1);
+  }
+  
+  /**
+   * Checks the dirty status of the 'dataInt' field. A field is dirty if it represents a change that has not yet been written to the database.
+   * @param value the value to set.
+   */
+  public boolean isDataIntDirty() {
+    return isDirty(1);
+  }
+
+  /**
+   * Gets the value of the 'dataLong' field.
+   */
+  public java.lang.Long getDataLong() {
+    return dataLong;
+  }
+
+  /**
+   * Sets the value of the 'dataLong' field.
+   * @param value the value to set.
+   */
+  public void setDataLong(java.lang.Long value) {
+    this.dataLong = value;
+    setDirty(2);
+  }
+  
+  /**
+   * Checks the dirty status of the 'dataLong' field. A field is dirty if it represents a change that has not yet been written to the database.
+   * @param value the value to set.
+   */
+  public boolean isDataLongDirty() {
+    return isDirty(2);
+  }
+
+  /**
+   * Gets the value of the 'dataDouble' field.
+   */
+  public java.lang.Double getDataDouble() {
+    return dataDouble;
+  }
+
+  /**
+   * Sets the value of the 'dataDouble' field.
+   * @param value the value to set.
+   */
+  public void setDataDouble(java.lang.Double value) {
+    this.dataDouble = value;
+    setDirty(3);
+  }
+  
+  /**
+   * Checks the dirty status of the 'dataDouble' field. A field is dirty if it represents a change that has not yet been written to the database.
+   * @param value the value to set.
+   */
+  public boolean isDataDoubleDirty() {
+    return isDirty(3);
+  }
+
+  /**
+   * Gets the value of the 'dataBytes' field.
+   */
+  public java.nio.ByteBuffer getDataBytes() {
+    return dataBytes;
+  }
+
+  /**
+   * Sets the value of the 'dataBytes' field.
+   * @param value the value to set.
+   */
+  public void setDataBytes(java.nio.ByteBuffer value) {
+    this.dataBytes = value;
+    setDirty(4);
+  }
+  
+  /**
+   * Checks the dirty status of the 'dataBytes' field. A field is dirty if it represents a change that has not yet been written to the database.
+   * @param value the value to set.
+   */
+  public boolean isDataBytesDirty() {
+    return isDirty(4);
+  }
+
+  /**
+   * Gets the value of the 'arrayInt' field.
+   */
+  public java.util.List<java.lang.Integer> getArrayInt() {
+    return arrayInt;
+  }
+
+  /**
+   * Sets the value of the 'arrayInt' field.
+   * @param value the value to set.
+   */
+  public void setArrayInt(java.util.List<java.lang.Integer> value) {
+    this.arrayInt = (value instanceof org.apache.gora.persistency.Dirtyable) ? value : new org.apache.gora.persistency.impl.DirtyListWrapper(value);
+    setDirty(5);
+  }
+  
+  /**
+   * Checks the dirty status of the 'arrayInt' field. A field is dirty if it represents a change that has not yet been written to the database.
+   * @param value the value to set.
+   */
+  public boolean isArrayIntDirty() {
+    return isDirty(5);
+  }
+
+  /**
+   * Gets the value of the 'arrayString' field.
+   */
+  public java.util.List<java.lang.CharSequence> getArrayString() {
+    return arrayString;
+  }
+
+  /**
+   * Sets the value of the 'arrayString' field.
+   * @param value the value to set.
+   */
+  public void setArrayString(java.util.List<java.lang.CharSequence> value) {
+    this.arrayString = (value instanceof org.apache.gora.persistency.Dirtyable) ? value : new org.apache.gora.persistency.impl.DirtyListWrapper(value);
+    setDirty(6);
+  }
+  
+  /**
+   * Checks the dirty status of the 'arrayString' field. A field is dirty if it represents a change that has not yet been written to the database.
+   * @param value the value to set.
+   */
+  public boolean isArrayStringDirty() {
+    return isDirty(6);
+  }
+
+  /**
+   * Gets the value of the 'arrayLong' field.
+   */
+  public java.util.List<java.lang.Long> getArrayLong() {
+    return arrayLong;
+  }
+
+  /**
+   * Sets the value of the 'arrayLong' field.
+   * @param value the value to set.
+   */
+  public void setArrayLong(java.util.List<java.lang.Long> value) {
+    this.arrayLong = (value instanceof org.apache.gora.persistency.Dirtyable) ? value : new org.apache.gora.persistency.impl.DirtyListWrapper(value);
+    setDirty(7);
+  }
+  
+  /**
+   * Checks the dirty status of the 'arrayLong' field. A field is dirty if it represents a change that has not yet been written to the database.
+   * @param value the value to set.
+   */
+  public boolean isArrayLongDirty() {
+    return isDirty(7);
+  }
+
+  /**
+   * Gets the value of the 'arrayDouble' field.
+   */
+  public java.util.List<java.lang.Double> getArrayDouble() {
+    return arrayDouble;
+  }
+
+  /**
+   * Sets the value of the 'arrayDouble' field.
+   * @param value the value to set.
+   */
+  public void setArrayDouble(java.util.List<java.lang.Double> value) {
+    this.arrayDouble = (value instanceof org.apache.gora.persistency.Dirtyable) ? value : new org.apache.gora.persistency.impl.DirtyListWrapper(value);
+    setDirty(8);
+  }
+  
+  /**
+   * Checks the dirty status of the 'arrayDouble' field. A field is dirty if it represents a change that has not yet been written to the database.
+   * @param value the value to set.
+   */
+  public boolean isArrayDoubleDirty() {
+    return isDirty(8);
+  }
+
+  /**
+   * Gets the value of the 'mapInt' field.
+   */
+  public java.util.Map<java.lang.CharSequence,java.lang.Integer> getMapInt() {
+    return mapInt;
+  }
+
+  /**
+   * Sets the value of the 'mapInt' field.
+   * @param value the value to set.
+   */
+  public void setMapInt(java.util.Map<java.lang.CharSequence,java.lang.Integer> value) {
+    this.mapInt = (value instanceof org.apache.gora.persistency.Dirtyable) ? value : new org.apache.gora.persistency.impl.DirtyMapWrapper(value);
+    setDirty(9);
+  }
+  
+  /**
+   * Checks the dirty status of the 'mapInt' field. A field is dirty if it represents a change that has not yet been written to the database.
+   * @param value the value to set.
+   */
+  public boolean isMapIntDirty() {
+    return isDirty(9);
+  }
+
+  /**
+   * Gets the value of the 'mapString' field.
+   */
+  public java.util.Map<java.lang.CharSequence,java.lang.CharSequence> getMapString() {
+    return mapString;
+  }
+
+  /**
+   * Sets the value of the 'mapString' field.
+   * @param value the value to set.
+   */
+  public void setMapString(java.util.Map<java.lang.CharSequence,java.lang.CharSequence> value) {
+    this.mapString = (value instanceof org.apache.gora.persistency.Dirtyable) ? value : new org.apache.gora.persistency.impl.DirtyMapWrapper(value);
+    setDirty(10);
+  }
+  
+  /**
+   * Checks the dirty status of the 'mapString' field. A field is dirty if it represents a change that has not yet been written to the database.
+   * @param value the value to set.
+   */
+  public boolean isMapStringDirty() {
+    return isDirty(10);
+  }
+
+  /**
+   * Gets the value of the 'mapLong' field.
+   */
+  public java.util.Map<java.lang.CharSequence,java.lang.Long> getMapLong() {
+    return mapLong;
+  }
+
+  /**
+   * Sets the value of the 'mapLong' field.
+   * @param value the value to set.
+   */
+  public void setMapLong(java.util.Map<java.lang.CharSequence,java.lang.Long> value) {
+    this.mapLong = (value instanceof org.apache.gora.persistency.Dirtyable) ? value : new org.apache.gora.persistency.impl.DirtyMapWrapper(value);
+    setDirty(11);
+  }
+  
+  /**
+   * Checks the dirty status of the 'mapLong' field. A field is dirty if it represents a change that has not yet been written to the database.
+   * @param value the value to set.
+   */
+  public boolean isMapLongDirty() {
+    return isDirty(11);
+  }
+
+  /**
+   * Gets the value of the 'mapDouble' field.
+   */
+  public java.util.Map<java.lang.CharSequence,java.lang.Double> getMapDouble() {
+    return mapDouble;
+  }
+
+  /**
+   * Sets the value of the 'mapDouble' field.
+   * @param value the value to set.
+   */
+  public void setMapDouble(java.util.Map<java.lang.CharSequence,java.lang.Double> value) {
+    this.mapDouble = (value instanceof org.apache.gora.persistency.Dirtyable) ? value : new org.apache.gora.persistency.impl.DirtyMapWrapper(value);
+    setDirty(12);
+  }
+  
+  /**
+   * Checks the dirty status of the 'mapDouble' field. A field is dirty if it represents a change that has not yet been written to the database.
+   * @param value the value to set.
+   */
+  public boolean isMapDoubleDirty() {
+    return isDirty(12);
+  }
+
+  /** Creates a new CassandraRecord RecordBuilder */
+  public static org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder newBuilder() {
+    return new org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder();
+  }
+  
+  /** Creates a new CassandraRecord RecordBuilder by copying an existing Builder */
+  public static org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder newBuilder(org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder other) {
+    return new org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder(other);
+  }
+  
+  /** Creates a new CassandraRecord RecordBuilder by copying an existing CassandraRecord instance */
+  public static org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder newBuilder(org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord other) {
+    return new org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder(other);
+  }
+  
+  private static java.nio.ByteBuffer deepCopyToReadOnlyBuffer(
+      java.nio.ByteBuffer input) {
+    java.nio.ByteBuffer copy = java.nio.ByteBuffer.allocate(input.capacity());
+    int position = input.position();
+    input.reset();
+    int mark = input.position();
+    int limit = input.limit();
+    input.rewind();
+    input.limit(input.capacity());
+    copy.put(input);
+    input.rewind();
+    copy.rewind();
+    input.position(mark);
+    input.mark();
+    copy.position(mark);
+    copy.mark();
+    input.position(position);
+    copy.position(position);
+    input.limit(limit);
+    copy.limit(limit);
+    return copy.asReadOnlyBuffer();
+  }
+  
+  /**
+   * RecordBuilder for CassandraRecord instances.
+   */
+  public static class Builder extends org.apache.avro.specific.SpecificRecordBuilderBase<CassandraRecord>
+    implements org.apache.avro.data.RecordBuilder<CassandraRecord> {
+
+    private java.lang.CharSequence dataString;
+    private int dataInt;
+    private java.lang.Long dataLong;
+    private java.lang.Double dataDouble;
+    private java.nio.ByteBuffer dataBytes;
+    private java.util.List<java.lang.Integer> arrayInt;
+    private java.util.List<java.lang.CharSequence> arrayString;
+    private java.util.List<java.lang.Long> arrayLong;
+    private java.util.List<java.lang.Double> arrayDouble;
+    private java.util.Map<java.lang.CharSequence,java.lang.Integer> mapInt;
+    private java.util.Map<java.lang.CharSequence,java.lang.CharSequence> mapString;
+    private java.util.Map<java.lang.CharSequence,java.lang.Long> mapLong;
+    private java.util.Map<java.lang.CharSequence,java.lang.Double> mapDouble;
+
+    /** Creates a new Builder */
+    private Builder() {
+      super(org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.SCHEMA$);
+    }
+    
+    /** Creates a Builder by copying an existing Builder */
+    private Builder(org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder other) {
+      super(other);
+    }
+    
+    /** Creates a Builder by copying an existing CassandraRecord instance */
+    private Builder(org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord other) {
+            super(org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.SCHEMA$);
+      if (isValidValue(fields()[0], other.dataString)) {
+        this.dataString = (java.lang.CharSequence) data().deepCopy(fields()[0].schema(), other.dataString);
+        fieldSetFlags()[0] = true;
+      }
+      if (isValidValue(fields()[1], other.dataInt)) {
+        this.dataInt = (java.lang.Integer) data().deepCopy(fields()[1].schema(), other.dataInt);
+        fieldSetFlags()[1] = true;
+      }
+      if (isValidValue(fields()[2], other.dataLong)) {
+        this.dataLong = (java.lang.Long) data().deepCopy(fields()[2].schema(), other.dataLong);
+        fieldSetFlags()[2] = true;
+      }
+      if (isValidValue(fields()[3], other.dataDouble)) {
+        this.dataDouble = (java.lang.Double) data().deepCopy(fields()[3].schema(), other.dataDouble);
+        fieldSetFlags()[3] = true;
+      }
+      if (isValidValue(fields()[4], other.dataBytes)) {
+        this.dataBytes = (java.nio.ByteBuffer) data().deepCopy(fields()[4].schema(), other.dataBytes);
+        fieldSetFlags()[4] = true;
+      }
+      if (isValidValue(fields()[5], other.arrayInt)) {
+        this.arrayInt = (java.util.List<java.lang.Integer>) data().deepCopy(fields()[5].schema(), other.arrayInt);
+        fieldSetFlags()[5] = true;
+      }
+      if (isValidValue(fields()[6], other.arrayString)) {
+        this.arrayString = (java.util.List<java.lang.CharSequence>) data().deepCopy(fields()[6].schema(), other.arrayString);
+        fieldSetFlags()[6] = true;
+      }
+      if (isValidValue(fields()[7], other.arrayLong)) {
+        this.arrayLong = (java.util.List<java.lang.Long>) data().deepCopy(fields()[7].schema(), other.arrayLong);
+        fieldSetFlags()[7] = true;
+      }
+      if (isValidValue(fields()[8], other.arrayDouble)) {
+        this.arrayDouble = (java.util.List<java.lang.Double>) data().deepCopy(fields()[8].schema(), other.arrayDouble);
+        fieldSetFlags()[8] = true;
+      }
+      if (isValidValue(fields()[9], other.mapInt)) {
+        this.mapInt = (java.util.Map<java.lang.CharSequence,java.lang.Integer>) data().deepCopy(fields()[9].schema(), other.mapInt);
+        fieldSetFlags()[9] = true;
+      }
+      if (isValidValue(fields()[10], other.mapString)) {
+        this.mapString = (java.util.Map<java.lang.CharSequence,java.lang.CharSequence>) data().deepCopy(fields()[10].schema(), other.mapString);
+        fieldSetFlags()[10] = true;
+      }
+      if (isValidValue(fields()[11], other.mapLong)) {
+        this.mapLong = (java.util.Map<java.lang.CharSequence,java.lang.Long>) data().deepCopy(fields()[11].schema(), other.mapLong);
+        fieldSetFlags()[11] = true;
+      }
+      if (isValidValue(fields()[12], other.mapDouble)) {
+        this.mapDouble = (java.util.Map<java.lang.CharSequence,java.lang.Double>) data().deepCopy(fields()[12].schema(), other.mapDouble);
+        fieldSetFlags()[12] = true;
+      }
+    }
+
+    /** Gets the value of the 'dataString' field */
+    public java.lang.CharSequence getDataString() {
+      return dataString;
+    }
+    
+    /** Sets the value of the 'dataString' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder setDataString(java.lang.CharSequence value) {
+      validate(fields()[0], value);
+      this.dataString = value;
+      fieldSetFlags()[0] = true;
+      return this; 
+    }
+    
+    /** Checks whether the 'dataString' field has been set */
+    public boolean hasDataString() {
+      return fieldSetFlags()[0];
+    }
+    
+    /** Clears the value of the 'dataString' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder clearDataString() {
+      dataString = null;
+      fieldSetFlags()[0] = false;
+      return this;
+    }
+    
+    /** Gets the value of the 'dataInt' field */
+    public java.lang.Integer getDataInt() {
+      return dataInt;
+    }
+    
+    /** Sets the value of the 'dataInt' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder setDataInt(int value) {
+      validate(fields()[1], value);
+      this.dataInt = value;
+      fieldSetFlags()[1] = true;
+      return this; 
+    }
+    
+    /** Checks whether the 'dataInt' field has been set */
+    public boolean hasDataInt() {
+      return fieldSetFlags()[1];
+    }
+    
+    /** Clears the value of the 'dataInt' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder clearDataInt() {
+      fieldSetFlags()[1] = false;
+      return this;
+    }
+    
+    /** Gets the value of the 'dataLong' field */
+    public java.lang.Long getDataLong() {
+      return dataLong;
+    }
+    
+    /** Sets the value of the 'dataLong' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder setDataLong(java.lang.Long value) {
+      validate(fields()[2], value);
+      this.dataLong = value;
+      fieldSetFlags()[2] = true;
+      return this; 
+    }
+    
+    /** Checks whether the 'dataLong' field has been set */
+    public boolean hasDataLong() {
+      return fieldSetFlags()[2];
+    }
+    
+    /** Clears the value of the 'dataLong' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder clearDataLong() {
+      dataLong = null;
+      fieldSetFlags()[2] = false;
+      return this;
+    }
+    
+    /** Gets the value of the 'dataDouble' field */
+    public java.lang.Double getDataDouble() {
+      return dataDouble;
+    }
+    
+    /** Sets the value of the 'dataDouble' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder setDataDouble(java.lang.Double value) {
+      validate(fields()[3], value);
+      this.dataDouble = value;
+      fieldSetFlags()[3] = true;
+      return this; 
+    }
+    
+    /** Checks whether the 'dataDouble' field has been set */
+    public boolean hasDataDouble() {
+      return fieldSetFlags()[3];
+    }
+    
+    /** Clears the value of the 'dataDouble' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder clearDataDouble() {
+      dataDouble = null;
+      fieldSetFlags()[3] = false;
+      return this;
+    }
+    
+    /** Gets the value of the 'dataBytes' field */
+    public java.nio.ByteBuffer getDataBytes() {
+      return dataBytes;
+    }
+    
+    /** Sets the value of the 'dataBytes' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder setDataBytes(java.nio.ByteBuffer value) {
+      validate(fields()[4], value);
+      this.dataBytes = value;
+      fieldSetFlags()[4] = true;
+      return this; 
+    }
+    
+    /** Checks whether the 'dataBytes' field has been set */
+    public boolean hasDataBytes() {
+      return fieldSetFlags()[4];
+    }
+    
+    /** Clears the value of the 'dataBytes' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder clearDataBytes() {
+      dataBytes = null;
+      fieldSetFlags()[4] = false;
+      return this;
+    }
+    
+    /** Gets the value of the 'arrayInt' field */
+    public java.util.List<java.lang.Integer> getArrayInt() {
+      return arrayInt;
+    }
+    
+    /** Sets the value of the 'arrayInt' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder setArrayInt(java.util.List<java.lang.Integer> value) {
+      validate(fields()[5], value);
+      this.arrayInt = value;
+      fieldSetFlags()[5] = true;
+      return this; 
+    }
+    
+    /** Checks whether the 'arrayInt' field has been set */
+    public boolean hasArrayInt() {
+      return fieldSetFlags()[5];
+    }
+    
+    /** Clears the value of the 'arrayInt' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder clearArrayInt() {
+      arrayInt = null;
+      fieldSetFlags()[5] = false;
+      return this;
+    }
+    
+    /** Gets the value of the 'arrayString' field */
+    public java.util.List<java.lang.CharSequence> getArrayString() {
+      return arrayString;
+    }
+    
+    /** Sets the value of the 'arrayString' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder setArrayString(java.util.List<java.lang.CharSequence> value) {
+      validate(fields()[6], value);
+      this.arrayString = value;
+      fieldSetFlags()[6] = true;
+      return this; 
+    }
+    
+    /** Checks whether the 'arrayString' field has been set */
+    public boolean hasArrayString() {
+      return fieldSetFlags()[6];
+    }
+    
+    /** Clears the value of the 'arrayString' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder clearArrayString() {
+      arrayString = null;
+      fieldSetFlags()[6] = false;
+      return this;
+    }
+    
+    /** Gets the value of the 'arrayLong' field */
+    public java.util.List<java.lang.Long> getArrayLong() {
+      return arrayLong;
+    }
+    
+    /** Sets the value of the 'arrayLong' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder setArrayLong(java.util.List<java.lang.Long> value) {
+      validate(fields()[7], value);
+      this.arrayLong = value;
+      fieldSetFlags()[7] = true;
+      return this; 
+    }
+    
+    /** Checks whether the 'arrayLong' field has been set */
+    public boolean hasArrayLong() {
+      return fieldSetFlags()[7];
+    }
+    
+    /** Clears the value of the 'arrayLong' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder clearArrayLong() {
+      arrayLong = null;
+      fieldSetFlags()[7] = false;
+      return this;
+    }
+    
+    /** Gets the value of the 'arrayDouble' field */
+    public java.util.List<java.lang.Double> getArrayDouble() {
+      return arrayDouble;
+    }
+    
+    /** Sets the value of the 'arrayDouble' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder setArrayDouble(java.util.List<java.lang.Double> value) {
+      validate(fields()[8], value);
+      this.arrayDouble = value;
+      fieldSetFlags()[8] = true;
+      return this; 
+    }
+    
+    /** Checks whether the 'arrayDouble' field has been set */
+    public boolean hasArrayDouble() {
+      return fieldSetFlags()[8];
+    }
+    
+    /** Clears the value of the 'arrayDouble' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder clearArrayDouble() {
+      arrayDouble = null;
+      fieldSetFlags()[8] = false;
+      return this;
+    }
+    
+    /** Gets the value of the 'mapInt' field */
+    public java.util.Map<java.lang.CharSequence,java.lang.Integer> getMapInt() {
+      return mapInt;
+    }
+    
+    /** Sets the value of the 'mapInt' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder setMapInt(java.util.Map<java.lang.CharSequence,java.lang.Integer> value) {
+      validate(fields()[9], value);
+      this.mapInt = value;
+      fieldSetFlags()[9] = true;
+      return this; 
+    }
+    
+    /** Checks whether the 'mapInt' field has been set */
+    public boolean hasMapInt() {
+      return fieldSetFlags()[9];
+    }
+    
+    /** Clears the value of the 'mapInt' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder clearMapInt() {
+      mapInt = null;
+      fieldSetFlags()[9] = false;
+      return this;
+    }
+    
+    /** Gets the value of the 'mapString' field */
+    public java.util.Map<java.lang.CharSequence,java.lang.CharSequence> getMapString() {
+      return mapString;
+    }
+    
+    /** Sets the value of the 'mapString' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder setMapString(java.util.Map<java.lang.CharSequence,java.lang.CharSequence> value) {
+      validate(fields()[10], value);
+      this.mapString = value;
+      fieldSetFlags()[10] = true;
+      return this; 
+    }
+    
+    /** Checks whether the 'mapString' field has been set */
+    public boolean hasMapString() {
+      return fieldSetFlags()[10];
+    }
+    
+    /** Clears the value of the 'mapString' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder clearMapString() {
+      mapString = null;
+      fieldSetFlags()[10] = false;
+      return this;
+    }
+    
+    /** Gets the value of the 'mapLong' field */
+    public java.util.Map<java.lang.CharSequence,java.lang.Long> getMapLong() {
+      return mapLong;
+    }
+    
+    /** Sets the value of the 'mapLong' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder setMapLong(java.util.Map<java.lang.CharSequence,java.lang.Long> value) {
+      validate(fields()[11], value);
+      this.mapLong = value;
+      fieldSetFlags()[11] = true;
+      return this; 
+    }
+    
+    /** Checks whether the 'mapLong' field has been set */
+    public boolean hasMapLong() {
+      return fieldSetFlags()[11];
+    }
+    
+    /** Clears the value of the 'mapLong' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder clearMapLong() {
+      mapLong = null;
+      fieldSetFlags()[11] = false;
+      return this;
+    }
+    
+    /** Gets the value of the 'mapDouble' field */
+    public java.util.Map<java.lang.CharSequence,java.lang.Double> getMapDouble() {
+      return mapDouble;
+    }
+    
+    /** Sets the value of the 'mapDouble' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder setMapDouble(java.util.Map<java.lang.CharSequence,java.lang.Double> value) {
+      validate(fields()[12], value);
+      this.mapDouble = value;
+      fieldSetFlags()[12] = true;
+      return this; 
+    }
+    
+    /** Checks whether the 'mapDouble' field has been set */
+    public boolean hasMapDouble() {
+      return fieldSetFlags()[12];
+    }
+    
+    /** Clears the value of the 'mapDouble' field */
+    public org.apache.gora.cassandra.example.generated.avroSerialization.CassandraRecord.Builder clearMapDouble() {
+      mapDouble = null;
+      fieldSetFlags()[12] = false;
+      return this;
+    }
+    
+    @Override
+    public CassandraRecord build() {
+      try {
+        CassandraRecord record = new CassandraRecord();
+        record.dataString = fieldSetFlags()[0] ? this.dataString : (java.lang.CharSequence) defaultValue(fields()[0]);
+        record.dataInt = fieldSetFlags()[1] ? this.dataInt : (java.lang.Integer) defaultValue(fields()[1]);
+        record.dataLong = fieldSetFlags()[2] ? this.dataLong : (java.lang.Long) defaultValue(fields()[2]);
+        record.dataDouble = fieldSetFlags()[3] ? this.dataDouble : (java.lang.Double) defaultValue(fields()[3]);
+        record.dataBytes = fieldSetFlags()[4] ? this.dataBytes : (java.nio.ByteBuffer) defaultValue(fields()[4]);
+        record.arrayInt = fieldSetFlags()[5] ? this.arrayInt : (java.util.List<java.lang.Integer>) new org.apache.gora.persistency.impl.DirtyListWrapper((java.util.List)defaultValue(fields()[5]));
+        record.arrayString = fieldSetFlags()[6] ? this.arrayString : (java.util.List<java.lang.CharSequence>) new org.apache.gora.persistency.impl.DirtyListWrapper((java.util.List)defaultValue(fields()[6]));
+        record.arrayLong = fieldSetFlags()[7] ? this.arrayLong : (java.util.List<java.lang.Long>) new org.apache.gora.persistency.impl.DirtyListWrapper((java.util.List)defaultValue(fields()[7]));
+        record.arrayDouble = fieldSetFlags()[8] ? this.arrayDouble : (java.util.List<java.lang.Double>) new org.apache.gora.persistency.impl.DirtyListWrapper((java.util.List)defaultValue(fields()[8]));
+        record.mapInt = fieldSetFlags()[9] ? this.mapInt : (java.util.Map<java.lang.CharSequence,java.lang.Integer>) new org.apache.gora.persistency.impl.DirtyMapWrapper((java.util.Map)defaultValue(fields()[9]));
+        record.mapString = fieldSetFlags()[10] ? this.mapString : (java.util.Map<java.lang.CharSequence,java.lang.CharSequence>) new org.apache.gora.persistency.impl.DirtyMapWrapper((java.util.Map)defaultValue(fields()[10]));
+        record.mapLong = fieldSetFlags()[11] ? this.mapLong : (java.util.Map<java.lang.CharSequence,java.lang.Long>) new org.apache.gora.persistency.impl.DirtyMapWrapper((java.util.Map)defaultValue(fields()[11]));
+        record.mapDouble = fieldSetFlags()[12] ? this.mapDouble : (java.util.Map<java.lang.CharSequence,java.lang.Double>) new org.apache.gora.persistency.impl.DirtyMapWrapper((java.util.Map)defaultValue(fields()[12]));
+        return record;
+      } catch (Exception e) {
+        throw new org.apache.avro.AvroRuntimeException(e);
+      }
+    }
+  }
+  
+  public CassandraRecord.Tombstone getTombstone(){
+  	return TOMBSTONE;
+  }
+
+  public CassandraRecord newInstance(){
+    return newBuilder().build();
+  }
+
+  private static final Tombstone TOMBSTONE = new Tombstone();
+  
+  public static final class Tombstone extends CassandraRecord implements org.apache.gora.persistency.Tombstone {
+  
+      private Tombstone() { }
+  
+	  		  /**
+	   * Gets the value of the 'dataString' field.
+		   */
+	  public java.lang.CharSequence getDataString() {
+	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
+	  }
+	
+	  /**
+	   * Sets the value of the 'dataString' field.
+		   * @param value the value to set.
+	   */
+	  public void setDataString(java.lang.CharSequence value) {
+	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
+	  }
+	  
+	  /**
+	   * Checks the dirty status of the 'dataString' field. A field is dirty if it represents a change that has not yet been written to the database.
+		   * @param value the value to set.
+	   */
+	  public boolean isDataStringDirty() {
+	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
+	  }
+	
+				  /**
+	   * Gets the value of the 'dataInt' field.
+		   */
+	  public java.lang.Integer getDataInt() {
+	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
+	  }
+	
+	  /**
+	   * Sets the value of the 'dataInt' field.
+		   * @param value the value to set.
+	   */
+	  public void setDataInt(java.lang.Integer value) {
+	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
+	  }
+	  
+	  /**
+	   * Checks the dirty status of the 'dataInt' field. A field is dirty if it represents a change that has not yet been written to the database.
+		   * @param value the value to set.
+	   */
+	  public boolean isDataIntDirty() {
+	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
+	  }
+	
+				  /**
+	   * Gets the value of the 'dataLong' field.
+		   */
+	  public java.lang.Long getDataLong() {
+	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
+	  }
+	
+	  /**
+	   * Sets the value of the 'dataLong' field.
+		   * @param value the value to set.
+	   */
+	  public void setDataLong(java.lang.Long value) {
+	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
+	  }
+	  
+	  /**
+	   * Checks the dirty status of the 'dataLong' field. A field is dirty if it represents a change that has not yet been written to the database.
+		   * @param value the value to set.
+	   */
+	  public boolean isDataLongDirty() {
+	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
+	  }
+	
+				  /**
+	   * Gets the value of the 'dataDouble' field.
+		   */
+	  public java.lang.Double getDataDouble() {
+	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
+	  }
+	
+	  /**
+	   * Sets the value of the 'dataDouble' field.
+		   * @param value the value to set.
+	   */
+	  public void setDataDouble(java.lang.Double value) {
+	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
+	  }
+	  
+	  /**
+	   * Checks the dirty status of the 'dataDouble' field. A field is dirty if it represents a change that has not yet been written to the database.
+		   * @param value the value to set.
+	   */
+	  public boolean isDataDoubleDirty() {
+	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
+	  }
+	
+				  /**
+	   * Gets the value of the 'dataBytes' field.
+		   */
+	  public java.nio.ByteBuffer getDataBytes() {
+	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
+	  }
+	
+	  /**
+	   * Sets the value of the 'dataBytes' field.
+		   * @param value the value to set.
+	   */
+	  public void setDataBytes(java.nio.ByteBuffer value) {
+	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
+	  }
+	  
+	  /**
+	   * Checks the dirty status of the 'dataBytes' field. A field is dirty if it represents a change that has not yet been written to the database.
+		   * @param value the value to set.
+	   */
+	  public boolean isDataBytesDirty() {
+	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
+	  }
+	
+				  /**
+	   * Gets the value of the 'arrayInt' field.
+		   */
+	  public java.util.List<java.lang.Integer> getArrayInt() {
+	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
+	  }
+	
+	  /**
+	   * Sets the value of the 'arrayInt' field.
+		   * @param value the value to set.
+	   */
+	  public void setArrayInt(java.util.List<java.lang.Integer> value) {
+	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
+	  }
+	  
+	  /**
+	   * Checks the dirty status of the 'arrayInt' field. A field is dirty if it represents a change that has not yet been written to the database.
+		   * @param value the value to set.
+	   */
+	  public boolean isArrayIntDirty() {
+	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
+	  }
+	
+				  /**
+	   * Gets the value of the 'arrayString' field.
+		   */
+	  public java.util.List<java.lang.CharSequence> getArrayString() {
+	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
+	  }
+	
+	  /**
+	   * Sets the value of the 'arrayString' field.
+		   * @param value the value to set.
+	   */
+	  public void setArrayString(java.util.List<java.lang.CharSequence> value) {
+	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
+	  }
+	  
+	  /**
+	   * Checks the dirty status of the 'arrayString' field. A field is dirty if it represents a change that has not yet been written to the database.
+		   * @param value the value to set.
+	   */
+	  public boolean isArrayStringDirty() {
+	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
+	  }
+	
+				  /**
+	   * Gets the value of the 'arrayLong' field.
+		   */
+	  public java.util.List<java.lang.Long> getArrayLong() {
+	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
+	  }
+	
+	  /**
+	   * Sets the value of the 'arrayLong' field.
+		   * @param value the value to set.
+	   */
+	  public void setArrayLong(java.util.List<java.lang.Long> value) {
+	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
+	  }
+	  
+	  /**
+	   * Checks the dirty status of the 'arrayLong' field. A field is dirty if it represents a change that has not yet been written to the database.
+		   * @param value the value to set.
+	   */
+	  public boolean isArrayLongDirty() {
+	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
+	  }
+	
+				  /**
+	   * Gets the value of the 'arrayDouble' field.
+		   */
+	  public java.util.List<java.lang.Double> getArrayDouble() {
+	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
+	  }
+	
+	  /**
+	   * Sets the value of the 'arrayDouble' field.
+		   * @param value the value to set.
+	   */
+	  public void setArrayDouble(java.util.List<java.lang.Double> value) {
+	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
+	  }
+	  
+	  /**
+	   * Checks the dirty status of the 'arrayDouble' field. A field is dirty if it represents a change that has not yet been written to the database.
+		   * @param value the value to set.
+	   */
+	  public boolean isArrayDoubleDirty() {
+	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
+	  }
+	
+				  /**
+	   * Gets the value of the 'mapInt' field.
+		   */
+	  public java.util.Map<java.lang.CharSequence,java.lang.Integer> getMapInt() {
+	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
+	  }
+	
+	  /**
+	   * Sets the value of the 'mapInt' field.
+		   * @param value the value to set.
+	   */
+	  public void setMapInt(java.util.Map<java.lang.CharSequence,java.lang.Integer> value) {
+	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
+	  }
+	  
+	  /**
+	   * Checks the dirty status of the 'mapInt' field. A field is dirty if it represents a change that has not yet been written to the database.
+		   * @param value the value to set.
+	   */
+	  public boolean isMapIntDirty() {
+	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
+	  }
+	
+				  /**
+	   * Gets the value of the 'mapString' field.
+		   */
+	  public java.util.Map<java.lang.CharSequence,java.lang.CharSequence> getMapString() {
+	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
+	  }
+	
+	  /**
+	   * Sets the value of the 'mapString' field.
+		   * @param value the value to set.
+	   */
+	  public void setMapString(java.util.Map<java.lang.CharSequence,java.lang.CharSequence> value) {
+	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
+	  }
+	  
+	  /**
+	   * Checks the dirty status of the 'mapString' field. A field is dirty if it represents a change that has not yet been written to the database.
+		   * @param value the value to set.
+	   */
+	  public boolean isMapStringDirty() {
+	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
+	  }
+	
+				  /**
+	   * Gets the value of the 'mapLong' field.
+		   */
+	  public java.util.Map<java.lang.CharSequence,java.lang.Long> getMapLong() {
+	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
+	  }
+	
+	  /**
+	   * Sets the value of the 'mapLong' field.
+		   * @param value the value to set.
+	   */
+	  public void setMapLong(java.util.Map<java.lang.CharSequence,java.lang.Long> value) {
+	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
+	  }
+	  
+	  /**
+	   * Checks the dirty status of the 'mapLong' field. A field is dirty if it represents a change that has not yet been written to the database.
+		   * @param value the value to set.
+	   */
+	  public boolean isMapLongDirty() {
+	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
+	  }
+	
+				  /**
+	   * Gets the value of the 'mapDouble' field.
+		   */
+	  public java.util.Map<java.lang.CharSequence,java.lang.Double> getMapDouble() {
+	    throw new java.lang.UnsupportedOperationException("Get is not supported on tombstones");
+	  }
+	
+	  /**
+	   * Sets the value of the 'mapDouble' field.
+		   * @param value the value to set.
+	   */
+	  public void setMapDouble(java.util.Map<java.lang.CharSequence,java.lang.Double> value) {
+	    throw new java.lang.UnsupportedOperationException("Set is not supported on tombstones");
+	  }
+	  
+	  /**
+	   * Checks the dirty status of the 'mapDouble' field. A field is dirty if it represents a change that has not yet been written to the database.
+		   * @param value the value to set.
+	   */
+	  public boolean isMapDoubleDirty() {
+	    throw new java.lang.UnsupportedOperationException("IsDirty is not supported on tombstones");
+	  }
+	
+		  
+  }
+
+  private static final org.apache.avro.io.DatumWriter
+            DATUM_WRITER$ = new org.apache.avro.specific.SpecificDatumWriter(SCHEMA$);
+  private static final org.apache.avro.io.DatumReader
+            DATUM_READER$ = new org.apache.avro.specific.SpecificDatumReader(SCHEMA$);
+
+  /**
+   * Writes AVRO data bean to output stream in the form of AVRO Binary encoding format. This will transform
+   * AVRO data bean from its Java object form to it s serializable form.
+   *
+   * @param out java.io.ObjectOutput output stream to write data bean in serializable form
+   */
+  @Override
+  public void writeExternal(java.io.ObjectOutput out)
+          throws java.io.IOException {
+    out.write(super.getDirtyBytes().array());
+    DATUM_WRITER$.write(this, org.apache.avro.io.EncoderFactory.get()
+            .directBinaryEncoder((java.io.OutputStream) out,
+                    null));
+  }
+
+  /**
+   * Reads AVRO data bean from input stream in it s AVRO Binary encoding format to Java object format.
+   * This will transform AVRO data bean from it s serializable form to deserialized Java object form.
+   *
+   * @param in java.io.ObjectOutput input stream to read data bean in serializable form
+   */
+  @Override
+  public void readExternal(java.io.ObjectInput in)
+          throws java.io.IOException {
+    byte[] __g__dirty = new byte[getFieldsCount()];
+    in.read(__g__dirty);
+    super.setDirtyBytes(java.nio.ByteBuffer.wrap(__g__dirty));
+    DATUM_READER$.read(this, org.apache.avro.io.DecoderFactory.get()
+            .directBinaryDecoder((java.io.InputStream) in,
+                    null));
+  }
+  
+}
+

http://git-wip-us.apache.org/repos/asf/gora/blob/a51b719c/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/bean/CassandraKey.java
----------------------------------------------------------------------
diff --git a/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/bean/CassandraKey.java b/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/bean/CassandraKey.java
index ca9657b..37ec84e 100644
--- a/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/bean/CassandraKey.java
+++ b/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/bean/CassandraKey.java
@@ -31,28 +31,33 @@ public class CassandraKey{
 
   private List<PartitionKeyField> partitionKeyFields;
 
+  private List<Field> fieldList;
 
   public CassandraKey(String name) {
     this.name = name;
+    this.fieldList = new ArrayList<>();
+    this.partitionKeyFields = new ArrayList<>();
   }
 
   public String getName() {
-    return name;
+    return this.name;
   }
 
   public List<ClusterKeyField> getClusterKeyFields() {
-    return clusterKeyFields;
+    return this.clusterKeyFields;
   }
 
   public List<PartitionKeyField> getPartitionKeyFields() {
-    return partitionKeyFields;
+    return this.partitionKeyFields;
   }
 
   public void addPartitionKeyField(PartitionKeyField partitionKeyField) {
-    if(this.partitionKeyFields == null) {
-      this.partitionKeyFields = new ArrayList<>();
-    }
     this.partitionKeyFields.add(partitionKeyField);
+    if(partitionKeyField.isComposite()) {
+      this.fieldList.addAll(partitionKeyField.getFields());
+    } else {
+      this.fieldList.add(partitionKeyField);
+    }
   }
 
   public void addClusterKeyField(ClusterKeyField clusterKeyField) {
@@ -62,4 +67,8 @@ public class CassandraKey{
     this.clusterKeyFields.add(clusterKeyField);
   }
 
+  public List<Field> getFieldList() {
+    return this.fieldList;
+  }
+
 }

http://git-wip-us.apache.org/repos/asf/gora/blob/a51b719c/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/bean/ClusterKeyField.java
----------------------------------------------------------------------
diff --git a/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/bean/ClusterKeyField.java b/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/bean/ClusterKeyField.java
index 560b61c..ba4a743 100644
--- a/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/bean/ClusterKeyField.java
+++ b/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/bean/ClusterKeyField.java
@@ -20,7 +20,21 @@ package org.apache.gora.cassandra.bean;
 /**
  * This class represents Cassandra Clustering Key.
  */
-public class ClusterKeyField extends Field {
+public class ClusterKeyField {
+
+  public String getColumnName() {
+    return columnName;
+  }
+
+  public void setColumnName(String columnName) {
+    this.columnName = columnName;
+  }
+
+  private String columnName;
+
+  public ClusterKeyField() {
+
+  }
 
   public enum Order {
     DESC,

http://git-wip-us.apache.org/repos/asf/gora/blob/a51b719c/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/query/CassandraColumn.java
----------------------------------------------------------------------
diff --git a/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/query/CassandraColumn.java b/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/query/CassandraColumn.java
deleted file mode 100644
index e95b815..0000000
--- a/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/query/CassandraColumn.java
+++ /dev/null
@@ -1,51 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.gora.cassandra.query;
-
-import org.apache.avro.Schema.Field;
-
-/**
- * Created by madhawa on 7/1/17.
- */
-public class CassandraColumn {
-
-  public CassandraColumn(Field field, Object value) {
-    this.field = field;
-    this.name = field.name();
-    this.value = value;
-  }
-
-  public String getName() {
-    return name;
-  }
-
-  public Field getField() {
-    return field;
-  }
-
-  private String name;
-
-  private Field field;
-
-  public Object getValue() {
-    return value;
-  }
-
-  private Object value;
-}

http://git-wip-us.apache.org/repos/asf/gora/blob/a51b719c/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/query/CassandraResultSet.java
----------------------------------------------------------------------
diff --git a/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/query/CassandraResultSet.java b/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/query/CassandraResultSet.java
index c23a11c..1b4876e 100644
--- a/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/query/CassandraResultSet.java
+++ b/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/query/CassandraResultSet.java
@@ -79,4 +79,8 @@ public class CassandraResultSet<K, T extends Persistent> extends ResultBase<K, T
     this.persistentObject.add(token);
     this.size++;
   }
+
+  public void setLimit(long limit) {
+    this.limit = limit;
+  }
 }

http://git-wip-us.apache.org/repos/asf/gora/blob/a51b719c/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/query/CassandraRow.java
----------------------------------------------------------------------
diff --git a/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/query/CassandraRow.java b/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/query/CassandraRow.java
deleted file mode 100644
index 857e1b2..0000000
--- a/gora-cassandra-cql/src/main/java/org/apache/gora/cassandra/query/CassandraRow.java
+++ /dev/null
@@ -1,79 +0,0 @@
-/**
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements.  See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership.  The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License.  You may obtain a copy of the License at
- *
- *     http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License.
- */
-
-package org.apache.gora.cassandra.query;
-
-import java.util.ArrayList;
-import java.util.List;
-
-/**
- * Created by madhawa on 7/1/17.
- */
-public class CassandraRow<K> extends ArrayList<CassandraColumn> {
-  private static final long serialVersionUID = -7620939600192859652L;
-  private K key;
-
-  public K getKey() {
-    return this.key;
-  }
-
-  public void setKey(K key) {
-    this.key = key;
-  }
-
-  /**
-   * Gets a specific CassandraColumn within a row using its name
-   *
-   * @param cassandraColumnName columnName
-   * @return CassandraColumn
-   */
-  public CassandraColumn getCassandraColumn(String cassandraColumnName) {
-    for (CassandraColumn cColumn : this) {
-      if (cassandraColumnName.equals(cColumn.getName())) {
-        return cColumn;
-      }
-    }
-    return null;
-  }
-
-  /**
-   *
-   * @return
-   */
-  public String[] getFields() {
-    List<String> columnNames = new ArrayList<>();
-    for (CassandraColumn cColumn : this) {
-      columnNames.add(cColumn.getName());
-    }
-    String[] columnNameArray = new String[columnNames.size()];
-    columnNameArray = columnNames.toArray(columnNameArray);
-    return columnNameArray;
-  }
-
-  /**
-   *
-   * @return
-   */
-  public Object[] getValues() {
-    List<Object> columnValues = new ArrayList<>();
-    for (CassandraColumn cColumn : this) {
-      columnValues.add(cColumn.getValue());
-    }
-    return columnValues.toArray();
-  }
-}


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