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From z..@apache.org
Subject svn commit: r1783988 [6/24] - in /pig/branches/spark: ./ bin/ conf/ contrib/piggybank/java/ contrib/piggybank/java/src/main/java/org/apache/pig/piggybank/evaluation/ contrib/piggybank/java/src/main/java/org/apache/pig/piggybank/evaluation/util/apachelo...
Date Wed, 22 Feb 2017 09:43:46 GMT
Added: pig/branches/spark/src/docs/jdiff/pig_0.16.0.xml
URL: http://svn.apache.org/viewvc/pig/branches/spark/src/docs/jdiff/pig_0.16.0.xml?rev=1783988&view=auto
==============================================================================
--- pig/branches/spark/src/docs/jdiff/pig_0.16.0.xml (added)
+++ pig/branches/spark/src/docs/jdiff/pig_0.16.0.xml Wed Feb 22 09:43:41 2017
@@ -0,0 +1,87488 @@
+<?xml version="1.0" encoding="iso-8859-1" standalone="no"?>
+<!-- Generated by the JDiff Javadoc doclet -->
+<!-- (http://www.jdiff.org) -->
+<!-- on Wed Jun 08 12:55:46 PDT 2016 -->
+
+<api
+  xmlns:xsi='http://www.w3.org/2001/XMLSchema-instance'
+  xsi:noNamespaceSchemaLocation='api.xsd'
+  name="pig 0.16.0"
+  jdversion="1.0.9">
+
+<!--  Command line arguments =  -doclet jdiff.JDiff -docletpath /Users/daijy/pig16/build/ivy/lib/Pig/jdiff-1.0.9.jar:/Users/daijy/pig16/build/ivy/lib/Pig/xercesImpl-2.10.0.jar -classpath /Users/daijy/.ivy2/cache/xmlenc/xmlenc/jars/xmlenc-0.52.jar:/Users/daijy/.ivy2/cache/com.sun.jersey/jersey-bundle/jars/jersey-bundle-1.8.jar:/Users/daijy/.ivy2/cache/com.sun.jersey/jersey-server/bundles/jersey-server-1.8.jar:/Users/daijy/.ivy2/cache/com.sun.jersey.contribs/jersey-guice/jars/jersey-guice-1.8.jar:/Users/daijy/.ivy2/cache/commons-codec/commons-codec/jars/commons-codec-1.4.jar:/Users/daijy/.ivy2/cache/commons-httpclient/commons-httpclient/jars/commons-httpclient-3.1.jar:/Users/daijy/.ivy2/cache/commons-configuration/commons-configuration/jars/commons-configuration-1.6.jar:/Users/daijy/.ivy2/cache/commons-collections/commons-collections/jars/commons-collections-3.2.1.jar:/Users/daijy/.ivy2/cache/javax.servlet/servlet-api/jars/servlet-api-2.5.jar:/Users/daijy/.ivy2/cache/javax.ws.rs/jsr31
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+<package name="org.apache.hadoop.hive.serde2.objectinspector.primitive">
+  <!-- start class org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaConstantBooleanObjectInspector -->
+  <class name="JavaConstantBooleanObjectInspector" extends="org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaBooleanObjectInspector"
+    abstract="false"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <implements name="org.apache.hadoop.hive.serde2.objectinspector.ConstantObjectInspector"/>
+    <constructor name="JavaConstantBooleanObjectInspector" type="java.lang.Boolean"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="getWritableConstantValue" return="java.lang.Object"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <doc>
+    <![CDATA[This class will be in Hive code base begin 1.2.0 (HIVE-9766).
+ Will remove once we switch to use Hive 1.2.0]]>
+    </doc>
+  </class>
+  <!-- end class org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaConstantBooleanObjectInspector -->
+  <!-- start class org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaConstantDoubleObjectInspector -->
+  <class name="JavaConstantDoubleObjectInspector" extends="org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaDoubleObjectInspector"
+    abstract="false"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <implements name="org.apache.hadoop.hive.serde2.objectinspector.ConstantObjectInspector"/>
+    <constructor name="JavaConstantDoubleObjectInspector" type="java.lang.Double"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="getWritableConstantValue" return="java.lang.Object"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <doc>
+    <![CDATA[This class will be in Hive code base begin 1.2.0 (HIVE-9766).
+ Will remove once we switch to use Hive 1.2.0]]>
+    </doc>
+  </class>
+  <!-- end class org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaConstantDoubleObjectInspector -->
+  <!-- start class org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaConstantFloatObjectInspector -->
+  <class name="JavaConstantFloatObjectInspector" extends="org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaFloatObjectInspector"
+    abstract="false"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <implements name="org.apache.hadoop.hive.serde2.objectinspector.ConstantObjectInspector"/>
+    <constructor name="JavaConstantFloatObjectInspector" type="java.lang.Float"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="getWritableConstantValue" return="java.lang.Object"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <doc>
+    <![CDATA[This class will be in Hive code base begin 1.2.0 (HIVE-9766).
+ Will remove once we switch to use Hive 1.2.0]]>
+    </doc>
+  </class>
+  <!-- end class org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaConstantFloatObjectInspector -->
+  <!-- start class org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaConstantIntObjectInspector -->
+  <class name="JavaConstantIntObjectInspector" extends="org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaIntObjectInspector"
+    abstract="false"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <implements name="org.apache.hadoop.hive.serde2.objectinspector.ConstantObjectInspector"/>
+    <constructor name="JavaConstantIntObjectInspector" type="java.lang.Integer"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="getWritableConstantValue" return="java.lang.Object"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <doc>
+    <![CDATA[This class will be in Hive code base begin 1.2.0 (HIVE-9766).
+ Will remove once we switch to use Hive 1.2.0]]>
+    </doc>
+  </class>
+  <!-- end class org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaConstantIntObjectInspector -->
+  <!-- start class org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaConstantLongObjectInspector -->
+  <class name="JavaConstantLongObjectInspector" extends="org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaLongObjectInspector"
+    abstract="false"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <implements name="org.apache.hadoop.hive.serde2.objectinspector.ConstantObjectInspector"/>
+    <constructor name="JavaConstantLongObjectInspector" type="java.lang.Long"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="getWritableConstantValue" return="java.lang.Object"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <doc>
+    <![CDATA[This class will be in Hive code base begin 1.2.0 (HIVE-9766).
+ Will remove once we switch to use Hive 1.2.0]]>
+    </doc>
+  </class>
+  <!-- end class org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaConstantLongObjectInspector -->
+  <!-- start class org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaConstantStringObjectInspector -->
+  <class name="JavaConstantStringObjectInspector" extends="org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaStringObjectInspector"
+    abstract="false"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <implements name="org.apache.hadoop.hive.serde2.objectinspector.ConstantObjectInspector"/>
+    <constructor name="JavaConstantStringObjectInspector" type="java.lang.String"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="getWritableConstantValue" return="java.lang.Object"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+  </class>
+  <!-- end class org.apache.hadoop.hive.serde2.objectinspector.primitive.JavaConstantStringObjectInspector -->
+</package>
+<package name="org.apache.pig">
+  <!-- start interface org.apache.pig.Accumulator -->
+  <interface name="Accumulator"    abstract="true"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <method name="accumulate"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="b" type="org.apache.pig.data.Tuple"/>
+      <exception name="IOException" type="java.io.IOException"/>
+      <doc>
+      <![CDATA[Pass tuples to the UDF.
+ @param b A tuple containing a single field, which is a bag.  The bag will contain the set
+ of tuples being passed to the UDF in this iteration.]]>
+      </doc>
+    </method>
+    <method name="getValue" return="java.lang.Object"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Called when all tuples from current key have been passed to accumulate.
+ @return the value for the UDF for this key.]]>
+      </doc>
+    </method>
+    <method name="cleanup"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Called after getValue() to prepare processing for next key.]]>
+      </doc>
+    </method>
+    <doc>
+    <![CDATA[An interface that allows UDFs that take a bag to accumulate tuples in chunks rather than take
+ the whole set at once.  This is intended for UDFs that do not need to see all of the tuples
+ together but cannot be used with the combiner.  This lowers the memory needs, avoiding the need
+ to spill large bags, and thus speeds up the query.  An example is something like session analysis.
+ It cannot be used with the combiner because all it's inputs must first be ordered.  But it does
+ not need to see all the tuples at once.  UDF implementors might also choose to implement this
+ interface so that if other UDFs in the FOREACH implement it it can be used.
+ @since Pig 0.6]]>
+    </doc>
+  </interface>
+  <!-- end interface org.apache.pig.Accumulator -->
+  <!-- start class org.apache.pig.AccumulatorEvalFunc -->
+  <class name="AccumulatorEvalFunc" extends="org.apache.pig.EvalFunc"
+    abstract="true"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <implements name="org.apache.pig.Accumulator"/>
+    <constructor name="AccumulatorEvalFunc"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="accumulate"
+      abstract="true" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="b" type="org.apache.pig.data.Tuple"/>
+      <exception name="IOException" type="java.io.IOException"/>
+    </method>
+    <method name="cleanup"
+      abstract="true" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="getValue" return="java.lang.Object"
+      abstract="true" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="exec" return="java.lang.Object"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="input" type="org.apache.pig.data.Tuple"/>
+      <exception name="IOException" type="java.io.IOException"/>
+    </method>
+    <doc>
+    <![CDATA[This class is used to provide a free implementation of the EvalFunc exec function given
+ implementation of the Accumulator interface. Instead of having to provide a redundant
+ implementation, this provides the base exec function for free, given that the methods
+ associated with the Accumulator interface are implemented. For information on how to
+ implement Accumulator, see {@link Accumulator}.]]>
+    </doc>
+  </class>
+  <!-- end class org.apache.pig.AccumulatorEvalFunc -->
+  <!-- start interface org.apache.pig.Algebraic -->
+  <interface name="Algebraic"    abstract="true"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <method name="getInitial" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Get the initial function. 
+ @return A function name of f_init. f_init should be an eval func.
+ The return type of f_init.exec() has to be Tuple]]>
+      </doc>
+    </method>
+    <method name="getIntermed" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Get the intermediate function. 
+ @return A function name of f_intermed. f_intermed should be an eval func.
+ The return type of f_intermed.exec() has to be Tuple]]>
+      </doc>
+    </method>
+    <method name="getFinal" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Get the final function. 
+ @return A function name of f_final. f_final should be an eval func parametrized by
+ the same datum as the eval func implementing this interface.]]>
+      </doc>
+    </method>
+    <doc>
+    <![CDATA[An interface to declare that an EvalFunc's 
+ calculation can be decomposed into intitial, intermediate, and final steps.
+ More formally, suppose we have to compute an function f over a bag X. In general, we need to know the entire X
+ before we can make any progress on f. However, some functions are <i>algebraic</i> e.g. SUM. In
+ these cases, you can apply some initital function f_init on subsets of X to get partial results. 
+ You can then combine partial results from different subsets of X using an intermediate function
+ f_intermed. To get the final answers, several partial results can be combined by invoking a final
+ f_final function. For the function SUM, f_init, f_intermed, and f_final are all SUM. 
+ 
+ See the code for builtin AVG to get a better idea of how algebraic works.
+ 
+ When eval functions implement this interface, Pig will attempt to use MapReduce's combiner.
+ The initial funciton will be called in the map phase and be passed a single tuple.  The
+ intermediate function will be called 0 or more times in the combiner phase.  And the final
+ function will be called once in the reduce phase.  It is important that the results be the same
+ whether the intermediate function is called 0, 1, or more times.  Hadoop makes no guarantees
+ about how many times the combiner will be called in a job.]]>
+    </doc>
+  </interface>
+  <!-- end interface org.apache.pig.Algebraic -->
+  <!-- start class org.apache.pig.AlgebraicEvalFunc -->
+  <class name="AlgebraicEvalFunc" extends="org.apache.pig.AccumulatorEvalFunc"
+    abstract="true"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <implements name="org.apache.pig.Algebraic"/>
+    <constructor name="AlgebraicEvalFunc" type="java.lang.String[]"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[It is key that if a subclass has a constructor, that it calls super(args...) or else
+ this class will not instantiate properly.]]>
+      </doc>
+    </constructor>
+    <method name="getFinal" return="java.lang.String"
+      abstract="true" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[This must be implement as per a normal Algebraic interface. See {@link Algebraic} for
+ more information.]]>
+      </doc>
+    </method>
+    <method name="getInitial" return="java.lang.String"
+      abstract="true" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[This must be implement as per a normal Algebraic interface. See {@link Algebraic} for
+ more information.]]>
+      </doc>
+    </method>
+    <method name="getIntermed" return="java.lang.String"
+      abstract="true" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[This must be implement as per a normal Algebraic interface. See {@link Algebraic} for
+ more information.]]>
+      </doc>
+    </method>
+    <method name="accumulate"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="input" type="org.apache.pig.data.Tuple"/>
+      <exception name="IOException" type="java.io.IOException"/>
+      <doc>
+      <![CDATA[This is the free accumulate implementation based on the static classes provided
+ by the Algebraic static classes. This implemention works by leveraging the
+ initial, intermediate, and final classes provided by the algebraic interface.
+ The exec function of the Initial EvalFunc will be called on every Tuple of the input
+ and the output will be collected in an intermediate state. Periodically, this intermediate
+ state will have the Intermediate EvalFunc called on it 1 or more times. The Final EvalFunc
+ is not called until getValue() is called.]]>
+      </doc>
+    </method>
+    <method name="cleanup"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Per the Accumulator interface, this clears all of the variables used in the implementation.]]>
+      </doc>
+    </method>
+    <method name="getValue" return="java.lang.Object"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[This function returns the ultimate result. It is when getValue() is called that
+ the Final EvalFunc's exec function is called on the accumulated data.]]>
+      </doc>
+    </method>
+    <doc>
+    <![CDATA[This class is used to provide a free implementation of the Accumulator interface
+ and EvalFunc class in the case of an Algebraic function. Instead of having to provide
+ redundant implementations for Accumulator and EvalFunc, implementing the
+ getInitial, getIntermed, and getFinal methods (which implies implementing the static classes
+ they reference) will give you an implementation of each of those for free. <br><br>
+ One key thing to note is that if a subclass of AlgebraicEvalFunc wishes to use any constructor
+ arguments, it MUST call super(args).
+ <br><br>
+ IMPORTANT: the implementation of the Accumulator interface that this class provides is good,
+ but it is simulated. For maximum efficiency, it is important to manually implement the accumulator
+ interface. See {@link Accumulator} for more information on how to do so.]]>
+    </doc>
+  </class>
+  <!-- end class org.apache.pig.AlgebraicEvalFunc -->
+  <!-- start interface org.apache.pig.CollectableLoadFunc -->
+  <interface name="CollectableLoadFunc"    abstract="true"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <method name="ensureAllKeyInstancesInSameSplit"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <exception name="IOException" type="java.io.IOException"/>
+      <doc>
+      <![CDATA[When this method is called, Pig is communicating to the Loader that it must
+ load data such that all instances of a key are in same split. Pig will
+ make no further checks at runtime to ensure whether the contract is honored
+ or not.
+ @throws IOException]]>
+      </doc>
+    </method>
+    <doc>
+    <![CDATA[This interface implemented by a {@link LoadFunc} implementations indicates to 
+ Pig that it has the capability to load data such that all instances of a key 
+ will occur in same split.
+ @since Pig 0.7]]>
+    </doc>
+  </interface>
+  <!-- end interface org.apache.pig.CollectableLoadFunc -->
+  <!-- start class org.apache.pig.ComparisonFunc -->
+  <class name="ComparisonFunc" extends="org.apache.hadoop.io.WritableComparator"
+    abstract="true"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <constructor name="ComparisonFunc"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="compare" return="int"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="a" type="org.apache.hadoop.io.WritableComparable"/>
+      <param name="b" type="org.apache.hadoop.io.WritableComparable"/>
+      <doc>
+      <![CDATA[Compare two tuples.  Note that even though both args are given type of
+ WritableComparable to match the WritableComparable interface, they
+ must both be tuples.
+ @param a first tuple
+ @param b tuple to compare a to
+ @return -1 if a &lt; b, 1 if a &gt; b, 0 if a = b]]>
+      </doc>
+    </method>
+    <method name="compare" return="int"
+      abstract="true" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="t1" type="org.apache.pig.data.Tuple"/>
+      <param name="t2" type="org.apache.pig.data.Tuple"/>
+      <doc>
+      <![CDATA[This callback method must be implemented by all subclasses. Compares 
+ its two arguments for order.  The order of elements of the tuples correspond 
+ to the fields specified in the order by clause. 
+ Same semantics as {@link java.util.Comparator}.
+ 
+ @param t1 the first Tuple to be compared.
+ @param t2 the second Tuple to be compared.
+ @return  Returns a negative integer, zero, or a positive integer as the first
+ argument is less than, equal to, or greater than the second. 
+ @throws IOException
+ @see java.util.Comparator]]>
+      </doc>
+    </method>
+    <method name="setReporter"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="reporter" type="org.apache.pig.backend.hadoop.executionengine.physicalLayer.PigProgressable"/>
+      <doc>
+      <![CDATA[Set the reporter.  If the comparison takes a long time the
+ reporter should be called occasionally to avoid Hadoop timing out
+ underneath.  The default Hadoop timeout is 600 seconds.
+ @param reporter Progress reporter]]>
+      </doc>
+    </method>
+    <field name="reporter" type="org.apache.pig.backend.hadoop.executionengine.physicalLayer.PigProgressable"
+      transient="false" volatile="false"
+      static="false" final="false" visibility="protected"
+      deprecated="not deprecated">
+    </field>
+    <doc>
+    <![CDATA[An interface for custom order by comparator function.]]>
+    </doc>
+  </class>
+  <!-- end class org.apache.pig.ComparisonFunc -->
+  <!-- start class org.apache.pig.CounterBasedErrorHandler -->
+  <class name="CounterBasedErrorHandler" extends="java.lang.Object"
+    abstract="false"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <implements name="org.apache.pig.ErrorHandler"/>
+    <constructor name="CounterBasedErrorHandler"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="onSuccess"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="uniqueSignature" type="java.lang.String"/>
+    </method>
+    <method name="onError"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="uniqueSignature" type="java.lang.String"/>
+      <param name="e" type="java.lang.Exception"/>
+      <param name="inputTuple" type="org.apache.pig.data.Tuple"/>
+    </method>
+    <method name="getRecordCount" return="long"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="storeSignature" type="java.lang.String"/>
+    </method>
+    <field name="STORER_ERROR_HANDLER_COUNTER_GROUP" type="java.lang.String"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="STORER_ERROR_COUNT" type="java.lang.String"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="STORER_RECORD_COUNT" type="java.lang.String"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+  </class>
+  <!-- end class org.apache.pig.CounterBasedErrorHandler -->
+  <!-- start interface org.apache.pig.ErrorHandler -->
+  <interface name="ErrorHandler"    abstract="true"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <method name="onSuccess"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="uniqueSignature" type="java.lang.String"/>
+      <doc>
+      <![CDATA[Method invoked on success processing of tuple
+ 
+ @param uniqueSignature
+            a unique signature to identify the operator]]>
+      </doc>
+    </method>
+    <method name="onError"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="uniqueSignature" type="java.lang.String"/>
+      <param name="e" type="java.lang.Exception"/>
+      <param name="inputTuple" type="org.apache.pig.data.Tuple"/>
+      <doc>
+      <![CDATA[Method invoked when an error occurs processing of tuple
+ 
+ @param uniqueSignature
+            a unique signature to identify the operator
+ @param e
+            Exception encountered while processing input
+ @param inputTuple
+            the tuple to store.]]>
+      </doc>
+    </method>
+    <doc>
+    <![CDATA[The interface that handles errors thrown by the
+ {@link StoreFuncInterface#putNext(Tuple)}]]>
+    </doc>
+  </interface>
+  <!-- end interface org.apache.pig.ErrorHandler -->
+  <!-- start interface org.apache.pig.ErrorHandling -->
+  <interface name="ErrorHandling"    abstract="true"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <method name="getErrorHandler" return="org.apache.pig.ErrorHandler"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[This method is called to determine the ErrorHandler implementation that
+ to handle errors in {@code StoreFunc#putNext(Tuple)}
+ 
+ @return OutputErrorHandler implementation for store func]]>
+      </doc>
+    </method>
+    <doc>
+    <![CDATA[A {@link StoreFunc} should implement this interface to enable handling errors
+ during {@code StoreFunc#putNext(Tuple)}]]>
+    </doc>
+  </interface>
+  <!-- end interface org.apache.pig.ErrorHandling -->
+  <!-- start class org.apache.pig.EvalFunc -->
+  <class name="EvalFunc" extends="java.lang.Object"
+    abstract="true"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <constructor name="EvalFunc"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="getSchemaName" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="protected"
+      deprecated="not deprecated">
+      <param name="name" type="java.lang.String"/>
+      <param name="input" type="org.apache.pig.impl.logicalLayer.schema.Schema"/>
+    </method>
+    <method name="getReturnType" return="java.lang.reflect.Type"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Get the Type that this EvalFunc returns.
+ @return Type]]>
+      </doc>
+    </method>
+    <method name="progress"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="true" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Utility method to allow UDF to report progress.  If exec will take more than a
+ a few seconds {@link PigProgressable#progress} should be called
+ occasionally to avoid timeouts.  Default Hadoop timeout is 600 seconds.]]>
+      </doc>
+    </method>
+    <method name="warn"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="true" visibility="public"
+      deprecated="not deprecated">
+      <param name="msg" type="java.lang.String"/>
+      <param name="warningEnum" type="java.lang.Enum"/>
+      <doc>
+      <![CDATA[Issue a warning.  Warning messages are aggregated and reported to
+ the user.
+ @param msg String message of the warning
+ @param warningEnum type of warning]]>
+      </doc>
+    </method>
+    <method name="finish"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Placeholder for cleanup to be performed at the end. User defined functions can override.
+ Default implementation is a no-op.]]>
+      </doc>
+    </method>
+    <method name="exec" return="java.lang.Object"
+      abstract="true" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="input" type="org.apache.pig.data.Tuple"/>
+      <exception name="IOException" type="java.io.IOException"/>
+      <doc>
+      <![CDATA[This callback method must be implemented by all subclasses. This
+ is the method that will be invoked on every Tuple of a given dataset.
+ Since the dataset may be divided up in a variety of ways the programmer
+ should not make assumptions about state that is maintained between
+ invocations of this method.
+
+ @param input the Tuple to be processed.
+ @return result, of type T.
+ @throws IOException]]>
+      </doc>
+    </method>
+    <method name="outputSchema" return="org.apache.pig.impl.logicalLayer.schema.Schema"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="input" type="org.apache.pig.impl.logicalLayer.schema.Schema"/>
+      <doc>
+      <![CDATA[Report the schema of the output of this UDF.  Pig will make use of
+ this in error checking, optimization, and planning.  The schema
+ of input data to this UDF is provided.
+ <p>
+ The default implementation interprets the {@link OutputSchema} annotation,
+ if one is present. Otherwise, it returns <code>null</code> (no known output schema).
+
+ @param input Schema of the input
+ @return Schema of the output]]>
+      </doc>
+    </method>
+    <method name="isAsynchronous" return="boolean"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[This function should be overriden to return true for functions that return their values
+ asynchronously.  Currently pig never attempts to execute a function
+ asynchronously.
+ @return true if the function can be executed asynchronously.]]>
+      </doc>
+    </method>
+    <method name="getReporter" return="org.apache.pig.backend.hadoop.executionengine.physicalLayer.PigProgressable"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="setReporter"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="true" visibility="public"
+      deprecated="not deprecated">
+      <param name="reporter" type="org.apache.pig.backend.hadoop.executionengine.physicalLayer.PigProgressable"/>
+      <doc>
+      <![CDATA[Set the reporter.  Called by Pig to provide a reference of
+ the reporter to the UDF.
+ @param reporter Hadoop reporter]]>
+      </doc>
+    </method>
+    <method name="getArgToFuncMapping" return="java.util.List"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <exception name="FrontendException" type="org.apache.pig.impl.logicalLayer.FrontendException"/>
+      <doc>
+      <![CDATA[Allow a UDF to specify type specific implementations of itself.  For example,
+ an implementation of arithmetic sum might have int and float implementations,
+ since integer arithmetic performs much better than floating point arithmetic.  Pig's
+ typechecker will call this method and using the returned list plus the schema
+ of the function's input data, decide which implementation of the UDF to use.
+ @return A List containing FuncSpec objects representing the EvalFunc class
+ which can handle the inputs corresponding to the schema in the objects.  Each
+ FuncSpec should be constructed with a schema that describes the input for that
+ implementation.  For example, the sum function above would return two elements in its
+ list:
+ <ol>
+ <li>FuncSpec(this.getClass().getName(), new Schema(new Schema.FieldSchema(null, DataType.DOUBLE)))
+ <li>FuncSpec(IntSum.getClass().getName(), new Schema(new Schema.FieldSchema(null, DataType.INTEGER)))
+ </ol>
+ This would indicate that the main implementation is used for doubles, and the special
+ implementation IntSum is used for ints.]]>
+      </doc>
+    </method>
+    <method name="getCacheFiles" return="java.util.List"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Allow a UDF to specify a list of hdfs files it would like placed in the distributed
+ cache.  These files will be put in the cache for every job the UDF is used in.
+ The default implementation returns null.
+ @return A list of files]]>
+      </doc>
+    </method>
+    <method name="getShipFiles" return="java.util.List"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Allow a UDF to specify a list of local files it would like placed in the distributed
+ cache. These files will be put in the cache for every job the UDF is used in. Check for
+ {@link FuncUtils} for utility function to facilitate it
+ The default implementation returns null.
+ @return A list of files]]>
+      </doc>
+    </method>
+    <method name="getPigLogger" return="org.apache.pig.backend.hadoop.executionengine.physicalLayer.PigLogger"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="setPigLogger"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="true" visibility="public"
+      deprecated="not deprecated">
+      <param name="pigLogger" type="org.apache.pig.backend.hadoop.executionengine.physicalLayer.PigLogger"/>
+      <doc>
+      <![CDATA[Set the PigLogger object.  Called by Pig to provide a reference
+ to the UDF.
+ @param pigLogger PigLogger object.]]>
+      </doc>
+    </method>
+    <method name="getLogger" return="org.apache.commons.logging.Log"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="setUDFContextSignature"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="signature" type="java.lang.String"/>
+      <doc>
+      <![CDATA[This method will be called by Pig both in the front end and back end to
+ pass a unique signature to the {@link EvalFunc}. The signature can be used
+ to store into the {@link UDFContext} any information which the
+ {@link EvalFunc} needs to store between various method invocations in the
+ front end and back end.
+ @param signature a unique signature to identify this EvalFunc]]>
+      </doc>
+    </method>
+    <method name="setInputSchema"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="input" type="org.apache.pig.impl.logicalLayer.schema.Schema"/>
+      <doc>
+      <![CDATA[This method is for internal use. It is called by Pig core in both front-end
+ and back-end to setup the right input schema for EvalFunc]]>
+      </doc>
+    </method>
+    <method name="getInputSchema" return="org.apache.pig.impl.logicalLayer.schema.Schema"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[This method is intended to be called by the user in {@link EvalFunc} to get the input
+ schema of the EvalFunc]]>
+      </doc>
+    </method>
+    <method name="getSchemaType" return="org.apache.pig.EvalFunc.SchemaType"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Returns the {@link SchemaType} of the EvalFunc. User defined functions can override
+ this method to return {@link SchemaType#VARARG}. In this case the last FieldSchema
+ added to the Schema in {@link #getArgToFuncMapping()} will be considered as a vararg field.
+ 
+ @return the schema type of the UDF]]>
+      </doc>
+    </method>
+    <method name="allowCompileTimeCalculation" return="boolean"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Whether the UDF should be evaluated at compile time if all inputs are constant.
+ This is applicable for most UDF, however, if a UDF will access hdfs file which
+ is not available at compile time, it has to be false
+ @return Whether or not compile time calculation is allowed, default to false
+ to ensure legacy UDF will get the right behavior]]>
+      </doc>
+    </method>
+    <method name="needEndOfAllInputProcessing" return="boolean"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="setEndOfAllInput"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="endOfAllInput" type="boolean"/>
+    </method>
+    <field name="reporter" type="org.apache.pig.backend.hadoop.executionengine.physicalLayer.PigProgressable"
+      transient="false" volatile="false"
+      static="false" final="false" visibility="protected"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Reporter to send heartbeats to Hadoop.  If exec will take more than a
+ a few seconds {@link PigProgressable#progress} should be called
+ occasionally to avoid timeouts.  Default Hadoop timeout is 600 seconds.]]>
+      </doc>
+    </field>
+    <field name="log" type="org.apache.commons.logging.Log"
+      transient="false" volatile="false"
+      static="false" final="false" visibility="protected"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Logging object.  Log calls made on the front end will be sent to
+ pig's log on the client.  Log calls made on the backend will be
+ sent to stdout and can be seen in the Hadoop logs.]]>
+      </doc>
+    </field>
+    <field name="pigLogger" type="org.apache.pig.backend.hadoop.executionengine.physicalLayer.PigLogger"
+      transient="false" volatile="false"
+      static="false" final="false" visibility="protected"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Logger for aggregating warnings.  Any warnings to be sent to the user
+ should be logged to this via {@link PigLogger#warn}.]]>
+      </doc>
+    </field>
+    <field name="returnType" type="java.lang.reflect.Type"
+      transient="false" volatile="false"
+      static="false" final="false" visibility="protected"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Return type of this instance of EvalFunc.]]>
+      </doc>
+    </field>
+    <doc>
+    <![CDATA[The class is used to implement functions to be applied to
+ fields in a dataset. The function is applied to each Tuple in the set.
+ The programmer should not make assumptions about state maintained
+ between invocations of the exec() method since the Pig runtime
+ will schedule and localize invocations based on information provided
+ at runtime.  The programmer also should not make assumptions about when or
+ how many times the class will be instantiated, since it may be instantiated
+ multiple times in both the front and back end.]]>
+    </doc>
+  </class>
+  <!-- end class org.apache.pig.EvalFunc -->
+  <!-- start class org.apache.pig.EvalFunc.SchemaType -->
+  <class name="EvalFunc.SchemaType" extends="java.lang.Enum"
+    abstract="false"
+    static="true" final="true" visibility="public"
+    deprecated="not deprecated">
+    <method name="values" return="org.apache.pig.EvalFunc.SchemaType[]"
+      abstract="false" native="false" synchronized="false"
+      static="true" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="valueOf" return="org.apache.pig.EvalFunc.SchemaType"
+      abstract="false" native="false" synchronized="false"
+      static="true" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="name" type="java.lang.String"/>
+    </method>
+    <field name="NORMAL" type="org.apache.pig.EvalFunc.SchemaType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="VARARG" type="org.apache.pig.EvalFunc.SchemaType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <doc>
+    <![CDATA[EvalFunc's schema type.
+ @see {@link EvalFunc#getSchemaType()}]]>
+    </doc>
+  </class>
+  <!-- end class org.apache.pig.EvalFunc.SchemaType -->
+  <!-- start interface org.apache.pig.ExceptionalFunction -->
+  <interface name="ExceptionalFunction"    abstract="true"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <method name="apply" return="java.lang.Object"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="item" type="java.lang.Object"/>
+      <exception name="Exception" type="java.lang.Exception"/>
+      <doc>
+      <![CDATA[Performs a unit of work on item, possibly throwing {@code E} in the process.
+
+ @param item The item to perform work against.
+ @return The result of the computation.
+ @throws E if there was a problem performing the work.]]>
+      </doc>
+    </method>
+    <doc>
+    <![CDATA[An interface that captures a unit of work against an item where an exception might be thrown.
+
+ @param <S> The argument type for the function.
+ @param <T> The return type for the function.
+ @param <E> The exception type that the function throws.]]>
+    </doc>
+  </interface>
+  <!-- end interface org.apache.pig.ExceptionalFunction -->
+  <!-- start interface org.apache.pig.ExecType -->
+  <interface name="ExecType"    abstract="true"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <implements name="java.io.Serializable"/>
+    <method name="accepts" return="boolean"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="properties" type="java.util.Properties"/>
+      <doc>
+      <![CDATA[An ExecType is selected based off the Properties for the given script.
+ There may be multiple settings that trigger the selection of a given
+ ExecType. For example, distributed MR mode is currently triggered if the
+ user specifies "mapred" or "mapreduce". It is desirable to override the
+ toString method of the given ExecType to uniquely identify the ExecType.
+ 
+ The initialize method should return true if it accepts the properties or
+ false if it does not. The Java ServiceLoader framework will be used to
+ iterate through and select the correct ExecType.]]>
+      </doc>
+    </method>
+    <method name="getExecutionEngine" return="org.apache.pig.backend.executionengine.ExecutionEngine"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="pigContext" type="org.apache.pig.impl.PigContext"/>
+      <doc>
+      <![CDATA[Returns the Execution Engine that this ExecType is associated with. Once
+ the ExecType the script is running in is determined by the PigServer, it
+ will then call this method to get an instance of the ExecutionEngine
+ associated with this ExecType to delegate all further execution to on the
+ backend.]]>
+      </doc>
+    </method>
+    <method name="getExecutionEngineClass" return="java.lang.Class"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Returns the Execution Engine class that this ExecType is associated with.
+ This method simply returns the class of the ExecutionEngine associated
+ with this ExecType, and not an instance of it.]]>
+      </doc>
+    </method>
+    <method name="isLocal" return="boolean"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[An ExecType is classified as local if it runs in-process and through the
+ local filesystem. While an ExecutionEngine may have a more nuanced notion
+ of local mode, these are the qualifications Pig requires.
+ ExecutionEngines can extend the ExecType interface to additionally
+ differentiate between ExecTypes as necessary.]]>
+      </doc>
+    </method>
+    <method name="name" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Returns the canonical name for this ExecType.
+ @return]]>
+      </doc>
+    </method>
+    <field name="LOCAL" type="org.apache.pig.ExecType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="MAPREDUCE" type="org.apache.pig.ExecType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <doc>
+    <![CDATA[The type of query execution. Pig will cycle through all implementations
+ of ExecType and choose the first one that matches the Properties passed in.
+ This ExecType then dictates the ExecutionEngine used for processing and 
+ other behaviour throughout Pig. Any implementing classes should be noted in
+ the META-INF/services folder titled org.apache.pig.ExecType as per the 
+ Java ServiceLoader specification.]]>
+    </doc>
+  </interface>
+  <!-- end interface org.apache.pig.ExecType -->
+  <!-- start class org.apache.pig.ExecTypeProvider -->
+  <class name="ExecTypeProvider" extends="java.lang.Object"
+    abstract="false"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <constructor name="ExecTypeProvider"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="selectExecType" return="org.apache.pig.ExecType"
+      abstract="false" native="false" synchronized="false"
+      static="true" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="properties" type="java.util.Properties"/>
+      <exception name="PigException" type="org.apache.pig.PigException"/>
+    </method>
+    <method name="fromString" return="org.apache.pig.ExecType"
+      abstract="false" native="false" synchronized="false"
+      static="true" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="execType" type="java.lang.String"/>
+      <exception name="PigException" type="org.apache.pig.PigException"/>
+    </method>
+  </class>
+  <!-- end class org.apache.pig.ExecTypeProvider -->
+  <!-- start class org.apache.pig.Expression -->
+  <class name="Expression" extends="java.lang.Object"
+    abstract="true"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <constructor name="Expression"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="getOpType" return="org.apache.pig.Expression.OpType"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[@return the opType]]>
+      </doc>
+    </method>
+    <field name="opType" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="false" final="false" visibility="protected"
+      deprecated="not deprecated">
+    </field>
+    <doc>
+    <![CDATA[A class to communicate Filter expressions to LoadFuncs.
+ @since Pig 0.7]]>
+    </doc>
+  </class>
+  <!-- end class org.apache.pig.Expression -->
+  <!-- start class org.apache.pig.Expression.BetweenExpression -->
+  <class name="Expression.BetweenExpression" extends="org.apache.pig.Expression"
+    abstract="false"
+    static="true" final="false" visibility="public"
+    deprecated="not deprecated">
+    <constructor name="Expression.BetweenExpression" type="java.lang.Object, java.lang.Object"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="getLower" return="java.lang.Object"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="getUpper" return="java.lang.Object"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="toString" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+  </class>
+  <!-- end class org.apache.pig.Expression.BetweenExpression -->
+  <!-- start class org.apache.pig.Expression.BinaryExpression -->
+  <class name="Expression.BinaryExpression" extends="org.apache.pig.Expression"
+    abstract="false"
+    static="true" final="false" visibility="public"
+    deprecated="not deprecated">
+    <constructor name="Expression.BinaryExpression" type="org.apache.pig.Expression, org.apache.pig.Expression, org.apache.pig.Expression.OpType"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[@param lhs
+ @param rhs]]>
+      </doc>
+    </constructor>
+    <method name="getLhs" return="org.apache.pig.Expression"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[@return the left hand operand]]>
+      </doc>
+    </method>
+    <method name="getRhs" return="org.apache.pig.Expression"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[@return the right hand operand]]>
+      </doc>
+    </method>
+    <method name="toString" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+  </class>
+  <!-- end class org.apache.pig.Expression.BinaryExpression -->
+  <!-- start class org.apache.pig.Expression.Column -->
+  <class name="Expression.Column" extends="org.apache.pig.Expression"
+    abstract="false"
+    static="true" final="false" visibility="public"
+    deprecated="not deprecated">
+    <constructor name="Expression.Column" type="java.lang.String"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[@param name]]>
+      </doc>
+    </constructor>
+    <method name="toString" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="getName" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[@return the name]]>
+      </doc>
+    </method>
+    <method name="setName"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="name" type="java.lang.String"/>
+      <doc>
+      <![CDATA[@param name the name to set]]>
+      </doc>
+    </method>
+  </class>
+  <!-- end class org.apache.pig.Expression.Column -->
+  <!-- start class org.apache.pig.Expression.Const -->
+  <class name="Expression.Const" extends="org.apache.pig.Expression"
+    abstract="false"
+    static="true" final="false" visibility="public"
+    deprecated="not deprecated">
+    <constructor name="Expression.Const" type="java.lang.Object"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[@param value]]>
+      </doc>
+    </constructor>
+    <method name="getValue" return="java.lang.Object"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[@return the value]]>
+      </doc>
+    </method>
+    <method name="toString" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+  </class>
+  <!-- end class org.apache.pig.Expression.Const -->
+  <!-- start class org.apache.pig.Expression.InExpression -->
+  <class name="Expression.InExpression" extends="org.apache.pig.Expression"
+    abstract="false"
+    static="true" final="false" visibility="public"
+    deprecated="not deprecated">
+    <constructor name="Expression.InExpression" type="java.util.List"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="getValues" return="java.util.List"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="toString" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+  </class>
+  <!-- end class org.apache.pig.Expression.InExpression -->
+  <!-- start class org.apache.pig.Expression.OpType -->
+  <class name="Expression.OpType" extends="java.lang.Enum"
+    abstract="false"
+    static="true" final="true" visibility="public"
+    deprecated="not deprecated">
+    <method name="values" return="org.apache.pig.Expression.OpType[]"
+      abstract="false" native="false" synchronized="false"
+      static="true" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="valueOf" return="org.apache.pig.Expression.OpType"
+      abstract="false" native="false" synchronized="false"
+      static="true" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="name" type="java.lang.String"/>
+    </method>
+    <method name="toString" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <field name="OP_PLUS" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_MINUS" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_TIMES" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_DIV" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_MOD" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_EQ" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_NE" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_GT" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_GE" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_LT" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_LE" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_MATCH" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_IN" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_BETWEEN" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_NULL" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_NOT" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_AND" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="OP_OR" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="TERM_COL" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+    <field name="TERM_CONST" type="org.apache.pig.Expression.OpType"
+      transient="false" volatile="false"
+      static="true" final="true" visibility="public"
+      deprecated="not deprecated">
+    </field>
+  </class>
+  <!-- end class org.apache.pig.Expression.OpType -->
+  <!-- start class org.apache.pig.Expression.UnaryExpression -->
+  <class name="Expression.UnaryExpression" extends="org.apache.pig.Expression"
+    abstract="false"
+    static="true" final="false" visibility="public"
+    deprecated="not deprecated">
+    <constructor name="Expression.UnaryExpression" type="org.apache.pig.Expression, org.apache.pig.Expression.OpType"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="getExpression" return="org.apache.pig.Expression"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="toString" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+  </class>
+  <!-- end class org.apache.pig.Expression.UnaryExpression -->
+  <!-- start class org.apache.pig.FileInputLoadFunc -->
+  <class name="FileInputLoadFunc" extends="org.apache.pig.LoadFunc"
+    abstract="true"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <implements name="org.apache.pig.OrderedLoadFunc"/>
+    <constructor name="FileInputLoadFunc"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="getSplitComparable" return="org.apache.hadoop.io.WritableComparable"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="split" type="org.apache.hadoop.mapreduce.InputSplit"/>
+      <exception name="IOException" type="java.io.IOException"/>
+    </method>
+    <doc>
+    <![CDATA[This class provides an implementation of OrderedLoadFunc interface
+ which can be optionally re-used by LoadFuncs that use FileInputFormat, by
+ having this as a super class
+ @since Pig 0.7]]>
+    </doc>
+  </class>
+  <!-- end class org.apache.pig.FileInputLoadFunc -->
+  <!-- start class org.apache.pig.FileSplitComparable -->
+  <class name="FileSplitComparable" extends="java.lang.Object"
+    abstract="false"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <implements name="org.apache.hadoop.io.WritableComparable"/>
+    <implements name="java.io.Serializable"/>
+    <constructor name="FileSplitComparable"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <constructor name="FileSplitComparable" type="java.lang.String, long"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="compareTo" return="int"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="other" type="org.apache.pig.FileSplitComparable"/>
+    </method>
+    <method name="readFields"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="in" type="java.io.DataInput"/>
+      <exception name="IOException" type="java.io.IOException"/>
+    </method>
+    <method name="write"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="out" type="java.io.DataOutput"/>
+      <exception name="IOException" type="java.io.IOException"/>
+    </method>
+    <method name="toString" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="hashCode" return="int"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="equals" return="boolean"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="obj" type="java.lang.Object"/>
+    </method>
+    <field name="filename" type="java.lang.String"
+      transient="false" volatile="false"
+      static="false" final="false" visibility="protected"
+      deprecated="not deprecated">
+    </field>
+    <field name="offset" type="java.lang.Long"
+      transient="false" volatile="false"
+      static="false" final="false" visibility="protected"
+      deprecated="not deprecated">
+    </field>
+    <doc>
+    <![CDATA[This class represents a relative position in a file.  It records a filename
+ and an offset.  This allows Pig to order FileSplits.
+ @since Pig 0.7]]>
+    </doc>
+  </class>
+  <!-- end class org.apache.pig.FileSplitComparable -->
+  <!-- start class org.apache.pig.FilterFunc -->
+  <class name="FilterFunc" extends="org.apache.pig.EvalFunc"
+    abstract="true"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <constructor name="FilterFunc"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </constructor>
+    <method name="finish"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[Placeholder for cleanup to be performed at the end. User defined functions can override.
+ Default implementation is a no-op.]]>
+      </doc>
+    </method>
+  </class>
+  <!-- end class org.apache.pig.FilterFunc -->
+  <!-- start class org.apache.pig.FuncSpec -->
+  <class name="FuncSpec" extends="java.lang.Object"
+    abstract="false"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <implements name="java.io.Serializable"/>
+    <implements name="java.lang.Cloneable"/>
+    <constructor name="FuncSpec" type="java.lang.String, java.lang.String"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[@param className the name of the class for the udf
+ @param ctorArg the argument to pass the constructor for the above class.
+ Constructors can only take strings.]]>
+      </doc>
+    </constructor>
+    <constructor name="FuncSpec" type="java.lang.String, java.lang.String[]"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[@param className the name of the class for the udf
+ @param ctorArgs the arguments to pass to the constructor for the above class.
+ Constructors can only take strings.]]>
+      </doc>
+    </constructor>
+    <constructor name="FuncSpec" type="java.lang.String, java.lang.String[], org.apache.pig.impl.logicalLayer.schema.Schema"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[@param className the name of the class for the udf
+ @param ctorArgs the arguments to pass to the constructor for the above class.
+ Constructors can only take strings.
+ @param inputArgsSchema schema for input args taken by this Function]]>
+      </doc>
+    </constructor>
+    <constructor name="FuncSpec" type="java.lang.String"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[@param funcSpec the name of the function and any arguments.
+ It should have the form: classname('arg1', 'arg2', ...)]]>
+      </doc>
+    </constructor>
+    <constructor name="FuncSpec" type="java.lang.String, org.apache.pig.impl.logicalLayer.schema.Schema"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[@param funcSpec funcSpec the name of the function and any arguments.
+ It should have the form: classname('arg1', 'arg2', ...)
+ @param inputArgsSchema schema for input args taken by this Function]]>
+      </doc>
+    </constructor>
+    <method name="getClassNameFromSpec" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="true" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="funcSpec" type="java.lang.String"/>
+      <doc>
+      <![CDATA[Parse the class name out of a function specification string.
+ @return name of the class.]]>
+      </doc>
+    </method>
+    <method name="getArgStringFromSpec" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="true" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="funcSpec" type="java.lang.String"/>
+      <doc>
+      <![CDATA[Get the argument values passed to the func spec.
+ @return argument values.  Format will be arg1, arg2, ... )]]>
+      </doc>
+    </method>
+    <method name="parseArguments" return="java.util.List"
+      abstract="false" native="false" synchronized="false"
+      static="true" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="argString" type="java.lang.String"/>
+      <doc>
+      <![CDATA[Parse the argument values out of a function specification string.
+ @param argString should be of the form "'arg1', 'arg2', ..."
+ @return List of the different argument strings]]>
+      </doc>
+    </method>
+    <method name="getClassName" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[@return the className]]>
+      </doc>
+    </method>
+    <method name="setClassName"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="className" type="java.lang.String"/>
+      <doc>
+      <![CDATA[@param className the className to set]]>
+      </doc>
+    </method>
+    <method name="getCtorArgs" return="java.lang.String[]"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[@return the ctorArgs]]>
+      </doc>
+    </method>
+    <method name="setCtorArgs"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="ctorArgs" type="java.lang.String[]"/>
+      <doc>
+      <![CDATA[@param ctorArgs the ctorArgs to set]]>
+      </doc>
+    </method>
+    <method name="toString" return="java.lang.String"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="getInputArgsSchema" return="org.apache.pig.impl.logicalLayer.schema.Schema"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <doc>
+      <![CDATA[@return the inputArgsSchema]]>
+      </doc>
+    </method>
+    <method name="setInputArgsSchema"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="inputArgsSchema" type="org.apache.pig.impl.logicalLayer.schema.Schema"/>
+      <doc>
+      <![CDATA[@param inputArgsSchema the inputArgsSchema to set]]>
+      </doc>
+    </method>
+    <method name="equals" return="boolean"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="other" type="java.lang.Object"/>
+    </method>
+    <method name="hashCode" return="int"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+    </method>
+    <method name="clone" return="org.apache.pig.FuncSpec"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <exception name="CloneNotSupportedException" type="java.lang.CloneNotSupportedException"/>
+    </method>
+    <doc>
+    <![CDATA[Class to represent a UDF specification.
+ Encapsulates the class name and the arguments to the constructor.]]>
+    </doc>
+  </class>
+  <!-- end class org.apache.pig.FuncSpec -->
+  <!-- start interface org.apache.pig.Function -->
+  <interface name="Function"    abstract="true"
+    static="false" final="false" visibility="public"
+    deprecated="not deprecated">
+    <implements name="org.apache.pig.ExceptionalFunction"/>
+    <implements name="com.google.common.base.Function"/>
+    <method name="apply" return="java.lang.Object"
+      abstract="false" native="false" synchronized="false"
+      static="false" final="false" visibility="public"
+      deprecated="not deprecated">
+      <param name="item" type="java.lang.Object"/>
+    </method>
+    <doc>

[... 85841 lines stripped ...]


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