org.apache.pig.newplan.logical.relational

Class LOForEach

java.lang.Object

org.apache.pig.newplan.Operator

org.apache.pig.newplan.logical.relational.LogicalRelationalOperator

org.apache.pig.newplan.logical.relational.LOForEach

public class LOForEach
extends LogicalRelationalOperator

Field Summary

Fields inherited from class org.apache.pig.newplan.logical.relational.LogicalRelationalOperator

alias, lineNum, mCustomPartitioner, mPinnedOptions, requestedParallelism, schema

Fields inherited from class org.apache.pig.newplan.Operator

annotations, hashPrime, location, name, plan

Constructor Summary

Constructors

Constructor and Description
LOForEach(OperatorPlan plan)

Method Summary

Methods

Modifier and Type	Method and Description
void	accept(PlanVisitor v) Accept a visitor at this node in the graph.
LogicalSchema	dumpNestedSchema(String alias, String nestedAlias)
static Pair<List<LOInnerLoad>,Boolean>	findReacheableInnerLoadFromBoundaryProject(ProjectExpression project)
LogicalPlan	getInnerPlan()
LogicalSchema	getSchema() Get the schema for the output of this relational operator.
boolean	isEqual(Operator other) This is like a shallow equals comparison.
void	setInnerPlan(LogicalPlan p)

Methods inherited from class org.apache.pig.newplan.logical.relational.LogicalRelationalOperator

checkEquality, fixDuplicateUids, getAlias, getCustomPartitioner, getLineNumber, getRequestedParallelism, isPinnedOption, neverUseForRealSetSchema, pinOption, resetSchema, resetUid, setAlias, setCustomPartitioner, setRequestedParallelism, setSchema, toString

Methods inherited from class org.apache.pig.newplan.Operator

annotate, getAnnotation, getLocation, getName, getPlan, removeAnnotation, setLocation, setPlan

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

LOForEach

public LOForEach(OperatorPlan plan)

Method Detail

getInnerPlan

public LogicalPlan getInnerPlan()

setInnerPlan

public void setInnerPlan(LogicalPlan p)

isEqual

public boolean isEqual(Operator other)
                throws FrontendException

Description copied from class: Operator

This is like a shallow equals comparison. It returns true if two operators have equivalent properties even if they are different objects. Here properties mean equivalent plan and equivalent name.

Specified by:

isEqual in class Operator

Returns:

true if two object have equivalent properties, else false

Throws:

FrontendException

getSchema

public LogicalSchema getSchema()
                        throws FrontendException

Description copied from class: LogicalRelationalOperator

Get the schema for the output of this relational operator. This does not merely return the schema variable. If schema is not yet set, this will attempt to construct it. Therefore it is abstract since each operator will need to construct its schema differently.

Specified by:

getSchema in class LogicalRelationalOperator

Returns:

the schema

Throws:

FrontendException

accept

public void accept(PlanVisitor v)
            throws FrontendException

Description copied from class: Operator

Accept a visitor at this node in the graph.

Specified by:

accept in class Operator

Parameters:

v - Visitor to accept.

Throws:

FrontendException

findReacheableInnerLoadFromBoundaryProject

public static Pair<List<LOInnerLoad>,Boolean> findReacheableInnerLoadFromBoundaryProject(ProjectExpression project)
                                                                                  throws FrontendException

Throws:

FrontendException

dumpNestedSchema

public LogicalSchema dumpNestedSchema(String alias,
                             String nestedAlias)
                               throws FrontendException

Throws:

FrontendException