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

Class Add

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.Add

All Implemented Interfaces:

Serializable, Cloneable, Comparable<Operator>, Illustrable

public class Add
extends BinaryExpressionOperator

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.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
Add(OperatorKey k)
Add(OperatorKey k, int rp)

Method Summary

Modifier and Type	Method and Description
protected Number	add(Number a, Number b, byte dataType)
Add	clone() Make a deep copy of this operator.
protected Result	genericGetNext(byte dataType)
Result	getNextBigDecimal()
Result	getNextBigInteger()
Result	getNextDouble()
Result	getNextFloat()
Result	getNextInteger()
Result	getNextLong()
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.BinaryExpressionOperator

cloneHelper, getChildExpressions, getLhs, getRhs, illustratorMarkup, 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, getNextBoolean, getNextDataByteArray, getNextDateTime, 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

Constructor Detail

Add

public Add(OperatorKey k)

Add

public Add(OperatorKey k,
           int rp)

Method Detail

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.

name

public String name()

Specified by:

name in class Operator<PhyPlanVisitor>

add

protected Number add(Number a,
                     Number b,
                     byte dataType)
              throws ExecException

Throws:

ExecException

genericGetNext

protected Result genericGetNext(byte dataType)
                         throws ExecException

Throws:

ExecException

getNextDouble

public Result getNextDouble()
                     throws ExecException

Overrides:

getNextDouble in class PhysicalOperator

Throws:

ExecException

getNextFloat

public Result getNextFloat()
                    throws ExecException

Overrides:

getNextFloat in class PhysicalOperator

Throws:

ExecException

getNextInteger

public Result getNextInteger()
                      throws ExecException

Overrides:

getNextInteger in class PhysicalOperator

Throws:

ExecException

getNextLong

public Result getNextLong()
                   throws ExecException

Overrides:

getNextLong in class PhysicalOperator

Throws:

ExecException

getNextBigInteger

public Result getNextBigInteger()
                         throws ExecException

Overrides:

getNextBigInteger in class PhysicalOperator

Throws:

ExecException

getNextBigDecimal

public Result getNextBigDecimal()
                         throws ExecException

Overrides:

getNextBigDecimal in class PhysicalOperator

Throws:

ExecException

clone

public Add clone()
          throws 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:

CloneNotSupportedException

See Also:

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