org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators

Class EqualToExpr

java.lang.Object

org.apache.pig.impl.plan.Operator<PhyPlanVisitor>

org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator

org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.ExpressionOperator

org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.BinaryExpressionOperator

org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.BinaryComparisonOperator

org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.EqualToExpr

All Implemented Interfaces:

java.io.Serializable, java.lang.Cloneable, java.lang.Comparable<Operator>, ComparisonOperator, Illustrable

public class EqualToExpr
extends BinaryComparisonOperator

See Also:

Serialized Form

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator

PhysicalOperator.OriginalLocation

Field Summary

Fields inherited from class org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.BinaryComparisonOperator

operandType

Fields inherited from class org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.BinaryExpressionOperator

lhs, rhs

Fields inherited from class org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator

alias, illustrator, input, inputAttached, inputs, lineageTracer, mBagFactory, mTupleFactory, outputs, parentPlan, pigLogger, reporter, requestedParallelism, res, RESULT_EMPTY, RESULT_EOP, resultType

Fields inherited from class org.apache.pig.impl.plan.Operator

mKey

Constructor Summary

Constructors

Constructor and Description
EqualToExpr(OperatorKey k)
EqualToExpr(OperatorKey k, int rp)

Method Summary

Modifier and Type	Method and Description
EqualToExpr	clone() Make a deep copy of this operator.
Result	getNextBoolean()
java.lang.String	name()
void	visit(PhyPlanVisitor v) Visit this node with the provided visitor.

Methods inherited from class org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.BinaryComparisonOperator

cloneHelper, getOperandType, illustratorMarkup, setOperandType

Methods inherited from class org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.BinaryExpressionOperator

cloneHelper, getChildExpressions, getLhs, getRhs, setLhs, setRhs, supportsMultipleInputs

Methods inherited from class org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.ExpressionOperator

accumChild, containUDF, getNextDataBag, setIllustrator, supportsMultipleOutputs, toString

Methods inherited from class org.apache.pig.backend.hadoop.executionengine.physicalLayer.PhysicalOperator

addOriginalLocation, addOriginalLocation, attachInput, cloneHelper, clonePlans, copyAliasFrom, detachInput, getAlias, getAliasString, getIllustrator, getInputs, getLogger, getNext, getNextBigDecimal, getNextBigInteger, getNextDataByteArray, getNextDateTime, getNextDouble, getNextFloat, getNextInteger, getNextLong, getNextMap, getNextString, getNextTuple, getOriginalLocations, getParentPlan, getPigLogger, getReporter, getRequestedParallelism, getResultType, isAccumStarted, isAccumulative, isBlocking, isEndOfAllInput, isInputAttached, processInput, reset, setAccumEnd, setAccumStart, setAccumulative, setInputs, setParentPlan, setPigLogger, setReporter, setRequestedParallelism, setResultType, staticDataCleanup

Methods inherited from class org.apache.pig.impl.plan.Operator

compareTo, equals, getOperatorKey, getProjectionMap, hashCode, regenerateProjectionMap, rewire, unsetProjectionMap

Methods inherited from class java.lang.Object

finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface org.apache.pig.backend.hadoop.executionengine.physicalLayer.expressionOperators.ComparisonOperator

getNextDataBag, getNextDataByteArray, getNextDateTime, getNextDouble, getNextFloat, getNextInteger, getNextLong, getNextMap, getNextString, getNextTuple

Constructor Detail

EqualToExpr

public EqualToExpr(OperatorKey k)

EqualToExpr

public EqualToExpr(OperatorKey k,
                   int rp)

Method Detail

name

public java.lang.String name()

Specified by:

name in class Operator<PhyPlanVisitor>

visit

public void visit(PhyPlanVisitor v)
           throws VisitorException

Description copied from class: Operator

Visit this node with the provided visitor. This should only be called by the visitor class itself, never directly.

Specified by:

visit in class ExpressionOperator

Parameters:

v - Visitor to visit with.

Throws:

VisitorException - if the visitor has a problem.

getNextBoolean

public Result getNextBoolean()
                      throws ExecException

Specified by:

getNextBoolean in interface ComparisonOperator

Overrides:

getNextBoolean in class PhysicalOperator

Throws:

ExecException

clone

public EqualToExpr clone()
                  throws java.lang.CloneNotSupportedException

Description copied from class: ExpressionOperator

Make a deep copy of this operator. This is declared here to make it possible to call clone on ExpressionOperators.

Overrides:

clone in class ExpressionOperator

Throws:

java.lang.CloneNotSupportedException

See Also:

Do not use the clone method directly. Operators are cloned when logical plans are cloned using {@link LogicalPlanCloner}