org.apache.calcite.adapter.pig

Class PigProject

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.core.Project

org.apache.calcite.adapter.pig.PigProject

All Implemented Interfaces:

Cloneable, PigRel, org.apache.calcite.plan.RelOptNode, org.apache.calcite.rel.hint.Hintable, org.apache.calcite.rel.RelNode

public class PigProject
extends org.apache.calcite.rel.core.Project
implements PigRel

Implementation of Project in Pig calling convention.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.calcite.rel.core.Project

org.apache.calcite.rel.core.Project.Flags

Nested classes/interfaces inherited from interface org.apache.calcite.adapter.pig.PigRel

PigRel.Implementor

Nested classes/interfaces inherited from interface org.apache.calcite.rel.RelNode

org.apache.calcite.rel.RelNode.Context

Field Summary

Fields inherited from class org.apache.calcite.rel.core.Project

exps, hints, variablesSet

Fields inherited from class org.apache.calcite.rel.SingleRel

input

Fields inherited from class org.apache.calcite.rel.AbstractRelNode

digest, id, rowType, traitSet

Fields inherited from interface org.apache.calcite.adapter.pig.PigRel

CONVENTION

Constructor Summary

Constructors

Constructor and Description
PigProject(org.apache.calcite.plan.RelOptCluster cluster, org.apache.calcite.plan.RelTraitSet traitSet, org.apache.calcite.rel.RelNode input, List<? extends org.apache.calcite.rex.RexNode> projects, org.apache.calcite.rel.type.RelDataType rowType) Creates a PigProject.

Method Summary

Modifier and Type	Method and Description
org.apache.calcite.rel.core.Project	copy(org.apache.calcite.plan.RelTraitSet traitSet, org.apache.calcite.rel.RelNode input, List<org.apache.calcite.rex.RexNode> projects, org.apache.calcite.rel.type.RelDataType rowType)
org.apache.calcite.plan.RelOptTable	getTable() Override this method so it looks down the tree to find the table this node is acting on.
void	implement(PigRel.Implementor implementor) Converts this node to a Pig Latin statement.

Methods inherited from class org.apache.calcite.rel.core.Project

accept, computeSelfCost, containsOver, copy, copy, deepEquals0, deepHashCode0, explainTerms, getFlags, getHints, getMapping, getMapping, getNamedProjects, getPartialMapping, getPermutation, getPermutation, getProjects, getVariablesSet, isBoxed, isMapping, isValid

Methods inherited from class org.apache.calcite.rel.SingleRel

childrenAccept, deriveRowType, estimateRowCount, getInput, getInputs, replaceInput

Methods inherited from class org.apache.calcite.rel.AbstractRelNode

accept, collectVariablesSet, collectVariablesUsed, deepEquals, deepHashCode, equals, explain, getCluster, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getRelDigest, getRelTypeName, getRowType, getTraitSet, hashCode, isEnforcer, metadata, onRegister, recomputeDigest, register, sole, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.calcite.rel.RelNode

accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeSelfCost, copy, deepEquals, deepHashCode, estimateRowCount, explain, explain, fieldIsNullable, getConvention, getCorrelVariable, getDigest, getExpectedInputRowType, getInput, getInputs, getRelDigest, getRelTypeName, getRowType, getVariablesSet, isEnforcer, isValid, metadata, onRegister, recomputeDigest, register, replaceInput

Methods inherited from interface org.apache.calcite.plan.RelOptNode

getCluster, getDescription, getId, getTraitSet

Methods inherited from interface org.apache.calcite.rel.hint.Hintable

attachHints, withHints

Constructor Detail

PigProject

public PigProject(org.apache.calcite.plan.RelOptCluster cluster,
                  org.apache.calcite.plan.RelTraitSet traitSet,
                  org.apache.calcite.rel.RelNode input,
                  List<? extends org.apache.calcite.rex.RexNode> projects,
                  org.apache.calcite.rel.type.RelDataType rowType)

Creates a PigProject.

Method Detail

copy

public org.apache.calcite.rel.core.Project copy(org.apache.calcite.plan.RelTraitSet traitSet,
                                                org.apache.calcite.rel.RelNode input,
                                                List<org.apache.calcite.rex.RexNode> projects,
                                                org.apache.calcite.rel.type.RelDataType rowType)

Specified by:

copy in class org.apache.calcite.rel.core.Project

implement

public void implement(PigRel.Implementor implementor)

Description copied from interface: PigRel

Converts this node to a Pig Latin statement.

Specified by:

implement in interface PigRel

getTable

public org.apache.calcite.plan.RelOptTable getTable()

Override this method so it looks down the tree to find the table this node is acting on.

Specified by:

getTable in interface org.apache.calcite.rel.RelNode

Overrides:

getTable in class org.apache.calcite.rel.AbstractRelNode