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From els...@apache.org
Subject [38/50] [abbrv] hbase git commit: HBASE-17491 Remove all setters from HTable interface and introduce a TableBuilder to build Table instance
Date Mon, 23 Jan 2017 23:02:11 GMT
HBASE-17491 Remove all setters from HTable interface and introduce a TableBuilder to build
Table instance


Project: http://git-wip-us.apache.org/repos/asf/hbase/repo
Commit: http://git-wip-us.apache.org/repos/asf/hbase/commit/07e0a30e
Tree: http://git-wip-us.apache.org/repos/asf/hbase/tree/07e0a30e
Diff: http://git-wip-us.apache.org/repos/asf/hbase/diff/07e0a30e

Branch: refs/heads/HBASE-16961
Commit: 07e0a30efa332ab451e5f5729dd8257eced82c4d
Parents: 7754a96
Author: Yu Li <liyu@apache.org>
Authored: Mon Jan 23 13:51:03 2017 +0800
Committer: Yu Li <liyu@apache.org>
Committed: Mon Jan 23 13:57:01 2017 +0800

----------------------------------------------------------------------
 .../apache/hadoop/hbase/client/Connection.java  | 15 +++-
 .../hbase/client/ConnectionConfiguration.java   | 11 ++-
 .../hbase/client/ConnectionImplementation.java  | 12 ++-
 .../org/apache/hadoop/hbase/client/HTable.java  | 55 ++++++-------
 .../org/apache/hadoop/hbase/client/Table.java   |  6 ++
 .../hadoop/hbase/client/TableBuilder.java       | 71 +++++++++++++++++
 .../hadoop/hbase/client/TableBuilderBase.java   | 83 ++++++++++++++++++++
 .../hbase/spark/HBaseConnectionCacheSuite.scala |  3 +-
 8 files changed, 222 insertions(+), 34 deletions(-)
----------------------------------------------------------------------


http://git-wip-us.apache.org/repos/asf/hbase/blob/07e0a30e/hbase-client/src/main/java/org/apache/hadoop/hbase/client/Connection.java
----------------------------------------------------------------------
diff --git a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/Connection.java b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/Connection.java
index b979c6a..a8cd296 100644
--- a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/Connection.java
+++ b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/Connection.java
@@ -83,7 +83,9 @@ public interface Connection extends Abortable, Closeable {
    * @param tableName the name of the table
    * @return a Table to use for interactions with this table
    */
-  Table getTable(TableName tableName) throws IOException;
+  default Table getTable(TableName tableName) throws IOException {
+    return getTable(tableName, null);
+  }
 
   /**
    * Retrieve a Table implementation for accessing a table.
@@ -102,7 +104,9 @@ public interface Connection extends Abortable, Closeable {
    * @param pool The thread pool to use for batch operations, null to use a default pool.
    * @return a Table to use for interactions with this table
    */
-  Table getTable(TableName tableName, ExecutorService pool)  throws IOException;
+  default Table getTable(TableName tableName, ExecutorService pool) throws IOException {
+    return getTableBuilder(tableName, pool).build();
+  }
 
   /**
    * <p>
@@ -173,4 +177,11 @@ public interface Connection extends Abortable, Closeable {
    * @return true if this connection is closed
    */
   boolean isClosed();
+
+  /**
+   * Returns an {@link TableBuilder} for creating {@link Table}.
+   * @param tableName the name of the table
+   * @param pool the thread pool to use for requests like batch and scan
+   */
+  TableBuilder getTableBuilder(TableName tableName, ExecutorService pool);
 }

http://git-wip-us.apache.org/repos/asf/hbase/blob/07e0a30e/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionConfiguration.java
----------------------------------------------------------------------
diff --git a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionConfiguration.java
b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionConfiguration.java
index 41f5baf..bea91da 100644
--- a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionConfiguration.java
+++ b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionConfiguration.java
@@ -42,9 +42,10 @@ public class ConnectionConfiguration {
   private final int replicaCallTimeoutMicroSecondScan;
   private final int retries;
   private final int maxKeyValueSize;
+  private final int rpcTimeout;
   private final int readRpcTimeout;
   private final int writeRpcTimeout;
-    // toggle for async/sync prefetch
+  // toggle for async/sync prefetch
   private final boolean clientScannerAsyncPrefetch;
 
     /**
@@ -82,6 +83,9 @@ public class ConnectionConfiguration {
 
     this.maxKeyValueSize = conf.getInt(MAX_KEYVALUE_SIZE_KEY, MAX_KEYVALUE_SIZE_DEFAULT);
 
+    this.rpcTimeout =
+        conf.getInt(HConstants.HBASE_RPC_TIMEOUT_KEY, HConstants.DEFAULT_HBASE_RPC_TIMEOUT);
+
     this.readRpcTimeout = conf.getInt(HConstants.HBASE_RPC_READ_TIMEOUT_KEY,
         conf.getInt(HConstants.HBASE_RPC_TIMEOUT_KEY, HConstants.DEFAULT_HBASE_RPC_TIMEOUT));
 
@@ -108,6 +112,7 @@ public class ConnectionConfiguration {
     this.maxKeyValueSize = MAX_KEYVALUE_SIZE_DEFAULT;
     this.readRpcTimeout = HConstants.DEFAULT_HBASE_RPC_TIMEOUT;
     this.writeRpcTimeout = HConstants.DEFAULT_HBASE_RPC_TIMEOUT;
+    this.rpcTimeout = HConstants.DEFAULT_HBASE_RPC_TIMEOUT;
   }
 
   public int getReadRpcTimeout() {
@@ -158,4 +163,8 @@ public class ConnectionConfiguration {
     return clientScannerAsyncPrefetch;
   }
 
+  public int getRpcTimeout() {
+    return rpcTimeout;
+  }
+
 }

http://git-wip-us.apache.org/repos/asf/hbase/blob/07e0a30e/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionImplementation.java
----------------------------------------------------------------------
diff --git a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionImplementation.java
b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionImplementation.java
index adbc7f9..ca21365 100644
--- a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionImplementation.java
+++ b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/ConnectionImplementation.java
@@ -327,9 +327,15 @@ class ConnectionImplementation implements ClusterConnection, Closeable
{
   }
 
   @Override
-  public Table getTable(TableName tableName, ExecutorService pool) throws IOException {
-    return new HTable(tableName, this, connectionConfig,
-      rpcCallerFactory, rpcControllerFactory, pool);
+  public TableBuilder getTableBuilder(TableName tableName, ExecutorService pool) {
+    return new TableBuilderBase(tableName, connectionConfig) {
+
+      @Override
+      public Table build() {
+        return new HTable(ConnectionImplementation.this, this, rpcCallerFactory,
+            rpcControllerFactory, pool);
+      }
+    };
   }
 
   @Override

http://git-wip-us.apache.org/repos/asf/hbase/blob/07e0a30e/hbase-client/src/main/java/org/apache/hadoop/hbase/client/HTable.java
----------------------------------------------------------------------
diff --git a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/HTable.java b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/HTable.java
index fd5eda3..3bb0a77 100644
--- a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/HTable.java
+++ b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/HTable.java
@@ -82,10 +82,9 @@ import org.apache.hadoop.hbase.util.Threads;
  * Obtain an instance via {@link Connection}. See {@link ConnectionFactory}
  * class comment for an example of how.
  *
- * <p>This class is NOT thread safe for reads nor writes.
- * In the case of writes (Put, Delete), the underlying write buffer can
- * be corrupted if multiple threads contend over a single HTable instance.
- * In the case of reads, some fields used by a Scan are shared among all threads.
+ * <p>This class is thread safe since 2.0.0 if not invoking any of the setter methods.
+ * All setters are moved into {@link TableBuilder} and reserved here only for keeping
+ * backward compatibility, and TODO will be removed soon.
  *
  * <p>HTable is no longer a client API. Use {@link Table} instead. It is marked
  * InterfaceAudience.Private indicating that this is an HBase-internal class as defined in
@@ -115,10 +114,12 @@ public class HTable implements Table {
   private final long scannerMaxResultSize;
   private final ExecutorService pool;  // For Multi & Scan
   private int operationTimeout; // global timeout for each blocking method with retrying
rpc
+  private final int rpcTimeout; // FIXME we should use this for rpc like batch and checkAndXXX
   private int readRpcTimeout; // timeout for each read rpc request
   private int writeRpcTimeout; // timeout for each write rpc request
   private final boolean cleanupPoolOnClose; // shutdown the pool in close()
   private final HRegionLocator locator;
+  private final long writeBufferSize;
 
   /** The Async process for batch */
   @VisibleForTesting
@@ -150,31 +151,24 @@ public class HTable implements Table {
    * Creates an object to access a HBase table.
    * Used by HBase internally.  DO NOT USE. See {@link ConnectionFactory} class comment for
how to
    * get a {@link Table} instance (use {@link Table} instead of {@link HTable}).
-   * @param tableName Name of the table.
    * @param connection Connection to be used.
+   * @param builder The table builder
+   * @param rpcCallerFactory The RPC caller factory
+   * @param rpcControllerFactory The RPC controller factory
    * @param pool ExecutorService to be used.
-   * @throws IOException if a remote or network exception occurs
    */
   @InterfaceAudience.Private
-  protected HTable(TableName tableName, final ClusterConnection connection,
-      final ConnectionConfiguration tableConfig,
+  protected HTable(final ClusterConnection connection,
+      final TableBuilderBase builder,
       final RpcRetryingCallerFactory rpcCallerFactory,
       final RpcControllerFactory rpcControllerFactory,
-      final ExecutorService pool) throws IOException {
+      final ExecutorService pool) {
     if (connection == null || connection.isClosed()) {
       throw new IllegalArgumentException("Connection is null or closed.");
     }
-    if (tableName == null) {
-      throw new IllegalArgumentException("Given table name is null");
-    }
-    this.tableName = tableName;
     this.connection = connection;
     this.configuration = connection.getConfiguration();
-    if (tableConfig == null) {
-      connConfiguration = new ConnectionConfiguration(configuration);
-    } else {
-      connConfiguration = tableConfig;
-    }
+    this.connConfiguration = connection.getConnectionConfiguration();
     if (pool == null) {
       this.pool = getDefaultExecutor(this.configuration);
       this.cleanupPoolOnClose = true;
@@ -194,10 +188,12 @@ public class HTable implements Table {
       this.rpcControllerFactory = rpcControllerFactory;
     }
 
-    this.operationTimeout = tableName.isSystemTable() ?
-        connConfiguration.getMetaOperationTimeout() : connConfiguration.getOperationTimeout();
-    this.readRpcTimeout = connConfiguration.getReadRpcTimeout();
-    this.writeRpcTimeout = connConfiguration.getWriteRpcTimeout();
+    this.tableName = builder.tableName;
+    this.operationTimeout = builder.operationTimeout;
+    this.rpcTimeout = builder.rpcTimeout;
+    this.readRpcTimeout = builder.readRpcTimeout;
+    this.writeRpcTimeout = builder.writeRpcTimeout;
+    this.writeBufferSize = builder.writeBufferSize;
     this.scannerCaching = connConfiguration.getScannerCaching();
     this.scannerMaxResultSize = connConfiguration.getScannerMaxResultSize();
 
@@ -215,15 +211,16 @@ public class HTable implements Table {
     connection = conn;
     this.tableName = mutator.getName();
     this.configuration = connection.getConfiguration();
-    connConfiguration = new ConnectionConfiguration(configuration);
+    connConfiguration = connection.getConnectionConfiguration();
     cleanupPoolOnClose = false;
     this.mutator = mutator;
-    this.operationTimeout = tableName.isSystemTable() ?
-        connConfiguration.getMetaOperationTimeout() : connConfiguration.getOperationTimeout();
+    this.operationTimeout = connConfiguration.getOperationTimeout();
+    this.rpcTimeout = connConfiguration.getRpcTimeout();
     this.readRpcTimeout = connConfiguration.getReadRpcTimeout();
     this.writeRpcTimeout = connConfiguration.getWriteRpcTimeout();
     this.scannerCaching = connConfiguration.getScannerCaching();
     this.scannerMaxResultSize = connConfiguration.getScannerMaxResultSize();
+    this.writeBufferSize = connConfiguration.getWriteBufferSize();
     this.rpcControllerFactory = null;
     this.rpcCallerFactory = null;
     this.pool = mutator.getPool();
@@ -1058,6 +1055,7 @@ public class HTable implements Table {
    * @throws IOException if a remote or network exception occurs.
    */
   @Override
+  @Deprecated
   public void setWriteBufferSize(long writeBufferSize) throws IOException {
     getBufferedMutator();
     mutator.setWriteBufferSize(writeBufferSize);
@@ -1162,6 +1160,7 @@ public class HTable implements Table {
   }
 
   @Override
+  @Deprecated
   public void setOperationTimeout(int operationTimeout) {
     this.operationTimeout = operationTimeout;
     if (mutator != null) {
@@ -1177,7 +1176,7 @@ public class HTable implements Table {
   @Override
   @Deprecated
   public int getRpcTimeout() {
-    return readRpcTimeout;
+    return rpcTimeout;
   }
 
   @Override
@@ -1193,6 +1192,7 @@ public class HTable implements Table {
   }
 
   @Override
+  @Deprecated
   public void setWriteRpcTimeout(int writeRpcTimeout) {
     this.writeRpcTimeout = writeRpcTimeout;
     if (mutator != null) {
@@ -1204,6 +1204,7 @@ public class HTable implements Table {
   public int getReadRpcTimeout() { return readRpcTimeout; }
 
   @Override
+  @Deprecated
   public void setReadRpcTimeout(int readRpcTimeout) {
     this.readRpcTimeout = readRpcTimeout;
   }
@@ -1335,7 +1336,7 @@ public class HTable implements Table {
       this.mutator = (BufferedMutatorImpl) connection.getBufferedMutator(
           new BufferedMutatorParams(tableName)
               .pool(pool)
-              .writeBufferSize(connConfiguration.getWriteBufferSize())
+              .writeBufferSize(writeBufferSize)
               .maxKeyValueSize(connConfiguration.getMaxKeyValueSize())
               .opertationTimeout(operationTimeout)
               .rpcTimeout(writeRpcTimeout)

http://git-wip-us.apache.org/repos/asf/hbase/blob/07e0a30e/hbase-client/src/main/java/org/apache/hadoop/hbase/client/Table.java
----------------------------------------------------------------------
diff --git a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/Table.java b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/Table.java
index 0f30cb4..90fee8d 100644
--- a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/Table.java
+++ b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/Table.java
@@ -593,7 +593,9 @@ public interface Table extends Closeable {
    * total time being blocking reach the operation timeout before retries exhausted, it will
break
    * early and throw SocketTimeoutException.
    * @param operationTimeout the total timeout of each operation in millisecond.
+   * @deprecated since 2.0.0, use {@link TableBuilder#setOperationTimeout} instead
    */
+  @Deprecated
   void setOperationTimeout(int operationTimeout);
 
   /**
@@ -637,7 +639,9 @@ public interface Table extends Closeable {
    * until retries exhausted or operation timeout reached.
    *
    * @param readRpcTimeout
+   * @deprecated since 2.0.0, use {@link TableBuilder#setReadRpcTimeout} instead
    */
+  @Deprecated
   void setReadRpcTimeout(int readRpcTimeout);
 
   /**
@@ -652,6 +656,8 @@ public interface Table extends Closeable {
    * until retries exhausted or operation timeout reached.
    *
    * @param writeRpcTimeout
+   * @deprecated since 2.0.0, use {@link TableBuilder#setWriteRpcTimeout} instead
    */
+  @Deprecated
   void setWriteRpcTimeout(int writeRpcTimeout);
 }

http://git-wip-us.apache.org/repos/asf/hbase/blob/07e0a30e/hbase-client/src/main/java/org/apache/hadoop/hbase/client/TableBuilder.java
----------------------------------------------------------------------
diff --git a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/TableBuilder.java b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/TableBuilder.java
new file mode 100644
index 0000000..27e1596
--- /dev/null
+++ b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/TableBuilder.java
@@ -0,0 +1,71 @@
+/**
+ * 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.hadoop.hbase.client;
+
+import org.apache.hadoop.hbase.classification.InterfaceAudience;
+import org.apache.hadoop.hbase.classification.InterfaceStability;
+
+/**
+ * For creating {@link Table} instance.
+ * <p>
+ * The implementation should have default configurations set before returning the builder
to user.
+ * So users are free to only set the configurations they care about to create a new
+ * Table instance.
+ */
+@InterfaceAudience.Public
+@InterfaceStability.Evolving
+public interface TableBuilder {
+
+  /**
+   * Set timeout for a whole operation such as get, put or delete. Notice that scan will
not be
+   * effected by this value, see scanTimeoutNs.
+   * <p>
+   * Operation timeout and max attempt times(or max retry times) are both limitations for
retrying,
+   * we will stop retrying when we reach any of the limitations.
+   */
+  TableBuilder setOperationTimeout(int timeout);
+
+  /**
+   * Set timeout for each rpc request.
+   * <p>
+   * Notice that this will <strong>NOT</strong> change the rpc timeout for read(get,
scan) request
+   * and write request(put, delete).
+   */
+  TableBuilder setRpcTimeout(int timeout);
+
+  /**
+   * Set timeout for each read(get, scan) rpc request.
+   */
+  TableBuilder setReadRpcTimeout(int timeout);
+
+  /**
+   * Set timeout for each write(put, delete) rpc request.
+   */
+  TableBuilder setWriteRpcTimeout(int timeout);
+
+  /**
+   * Set the write buffer size which by default is specified by the
+   * {@code hbase.client.write.buffer} setting.
+   */
+  TableBuilder setWriteBufferSize(long writeBufferSize);
+
+  /**
+   * Create the {@link Table} instance.
+   */
+  Table build();
+}

http://git-wip-us.apache.org/repos/asf/hbase/blob/07e0a30e/hbase-client/src/main/java/org/apache/hadoop/hbase/client/TableBuilderBase.java
----------------------------------------------------------------------
diff --git a/hbase-client/src/main/java/org/apache/hadoop/hbase/client/TableBuilderBase.java
b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/TableBuilderBase.java
new file mode 100644
index 0000000..adf1abb
--- /dev/null
+++ b/hbase-client/src/main/java/org/apache/hadoop/hbase/client/TableBuilderBase.java
@@ -0,0 +1,83 @@
+/**
+ * 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.hadoop.hbase.client;
+
+import org.apache.hadoop.hbase.TableName;
+import org.apache.hadoop.hbase.classification.InterfaceAudience;
+
+/**
+ * Base class for all table builders.
+ */
+@InterfaceAudience.Private
+abstract class TableBuilderBase implements TableBuilder {
+
+  protected TableName tableName;
+
+  protected int operationTimeout;
+
+  protected int rpcTimeout;
+
+  protected int readRpcTimeout;
+
+  protected int writeRpcTimeout;
+
+  protected long writeBufferSize;
+
+  TableBuilderBase(TableName tableName, ConnectionConfiguration connConf) {
+    if (tableName == null) {
+      throw new IllegalArgumentException("Given table name is null");
+    }
+    this.tableName = tableName;
+    this.operationTimeout = tableName.isSystemTable() ? connConf.getMetaOperationTimeout()
+        : connConf.getOperationTimeout();
+    this.rpcTimeout = connConf.getRpcTimeout();
+    this.readRpcTimeout = connConf.getReadRpcTimeout();
+    this.writeRpcTimeout = connConf.getWriteRpcTimeout();
+    this.writeBufferSize = connConf.getWriteBufferSize();
+  }
+
+  @Override
+  public TableBuilderBase setOperationTimeout(int timeout) {
+    this.operationTimeout = timeout;
+    return this;
+  }
+
+  @Override
+  public TableBuilderBase setRpcTimeout(int timeout) {
+    this.rpcTimeout = timeout;
+    return this;
+  }
+
+  @Override
+  public TableBuilderBase setReadRpcTimeout(int timeout) {
+    this.readRpcTimeout = timeout;
+    return this;
+  }
+
+  @Override
+  public TableBuilderBase setWriteRpcTimeout(int timeout) {
+    this.writeRpcTimeout = timeout;
+    return this;
+  }
+
+  @Override
+  public TableBuilder setWriteBufferSize(long writeBufferSize) {
+    this.writeBufferSize = writeBufferSize;
+    return this;
+  }
+}

http://git-wip-us.apache.org/repos/asf/hbase/blob/07e0a30e/hbase-spark/src/test/scala/org/apache/hadoop/hbase/spark/HBaseConnectionCacheSuite.scala
----------------------------------------------------------------------
diff --git a/hbase-spark/src/test/scala/org/apache/hadoop/hbase/spark/HBaseConnectionCacheSuite.scala
b/hbase-spark/src/test/scala/org/apache/hadoop/hbase/spark/HBaseConnectionCacheSuite.scala
index 6ebf044..b3fdd4e 100644
--- a/hbase-spark/src/test/scala/org/apache/hadoop/hbase/spark/HBaseConnectionCacheSuite.scala
+++ b/hbase-spark/src/test/scala/org/apache/hadoop/hbase/spark/HBaseConnectionCacheSuite.scala
@@ -21,7 +21,7 @@ import java.util.concurrent.ExecutorService
 import scala.util.Random
 
 import org.apache.hadoop.hbase.client.{BufferedMutator, Table, RegionLocator,
-  Connection, BufferedMutatorParams, Admin}
+  Connection, BufferedMutatorParams, Admin, TableBuilder}
 import org.apache.hadoop.conf.Configuration
 import org.apache.hadoop.hbase.TableName
 import org.apache.spark.Logging
@@ -50,6 +50,7 @@ class ConnectionMocker extends Connection {
   def getBufferedMutator (params: BufferedMutatorParams): BufferedMutator = null
   def getBufferedMutator (tableName: TableName): BufferedMutator = null
   def getAdmin: Admin = null
+  def getTableBuilder(tableName: TableName, pool: ExecutorService): TableBuilder = null
 
   def close(): Unit = {
     if (isClosed)


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