org.apache.hadoop.hive.ql.exec
Class UnionOperator

java.lang.Object
  extended by org.apache.hadoop.hive.ql.exec.Operator<unionDesc>
      extended by org.apache.hadoop.hive.ql.exec.UnionOperator
All Implemented Interfaces:
Serializable, Node

public class UnionOperator
extends Operator<unionDesc>
implements Serializable

Union Operator Just forwards. Doesn't do anything itself.

See Also:
Serialized Form

Nested Class Summary
 
Nested classes/interfaces inherited from class org.apache.hadoop.hive.ql.exec.Operator
Operator.OperatorFunc, Operator.State
 
Field Summary
 
Fields inherited from class org.apache.hadoop.hive.ql.exec.Operator
alias, childOperators, conf, done, gWork, id, joinAlias, LOG, out, parentOperators, reporter, statsMap
 
Constructor Summary
UnionOperator()
           
 
Method Summary
 String getName()
          Implements the getName function for the Node Interface.
 void process(Object row, ObjectInspector rowInspector)
           
 
Methods inherited from class org.apache.hadoop.hive.ql.exec.Operator
close, dump, endGroup, forward, getChildOperators, getChildren, getConf, getDone, getParentOperators, getSchema, getStats, initialize, jobClose, logStats, preorderMap, resetStats, setAlias, setChildOperators, setConf, setDone, setId, setJoinAlias, setMapredWork, setOutputCollector, setParentOperators, setSchema, startGroup
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

UnionOperator

public UnionOperator()
Method Detail

process

public void process(Object row,
                    ObjectInspector rowInspector)
             throws HiveException
Specified by:
process in class Operator<unionDesc>
Throws:
HiveException

getName

public String getName()
Description copied from class: Operator
Implements the getName function for the Node Interface.

Specified by:
getName in interface Node
Overrides:
getName in class Operator<unionDesc>
Returns:
the name of the operator


Copyright © 2009 The Apache Software Foundation