org.apache.pig.impl.logicalLayer
Class LOUnion

java.lang.Object
  extended by org.apache.pig.impl.logicalLayer.LogicalOperator
      extended by org.apache.pig.impl.logicalLayer.LOUnion
All Implemented Interfaces:
Serializable, ExecScopedLogicalOperator

public class LOUnion
extends LogicalOperator

See Also:
Serialized Form

Field Summary
 
Fields inherited from class org.apache.pig.impl.logicalLayer.LogicalOperator
alias, AMENDABLE, FIXED, id, inputs, MONOTONE, opTable, requestedParallelism, schema, scope, UPDATABLE
 
Constructor Summary
LOUnion(Map<OperatorKey,LogicalOperator> opTable, String scope, long id, List<OperatorKey> inputsIn)
           
 
Method Summary
 int getOutputType()
           
 String name()
           
 TupleSchema outputSchema()
           
 void visit(LOVisitor v)
          Visit all of the logical operators in a tree, starting with this one.
 
Methods inherited from class org.apache.pig.impl.logicalLayer.LogicalOperator
arguments, getAlias, getFuncs, getId, getInputs, getOperatorKey, getOpTable, getRequestedParallelism, getScope, setAlias, setRequestedParallelism, setSchema, toString
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

LOUnion

public LOUnion(Map<OperatorKey,LogicalOperator> opTable,
               String scope,
               long id,
               List<OperatorKey> inputsIn)
Method Detail

name

public String name()
Overrides:
name in class LogicalOperator

outputSchema

public TupleSchema outputSchema()
Specified by:
outputSchema in class LogicalOperator

getOutputType

public int getOutputType()
Specified by:
getOutputType in class LogicalOperator

visit

public void visit(LOVisitor v)
Description copied from class: LogicalOperator
Visit all of the logical operators in a tree, starting with this one.

Specified by:
visit in class LogicalOperator
Parameters:
v - LOVisitor to visit this logical plan with.


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