Package org.apache.calcite.interpreter

Class Bindables.BindableProject

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.core.Project

org.apache.calcite.interpreter.Bindables.BindableProject

All Implemented Interfaces:

Cloneable, BindableRel, InterpretableRel, RelOptNode, Hintable, RelNode, ArrayBindable, Bindable<@Nullable Object[]>, Typed

Enclosing class:

Bindables

public static class Bindables.BindableProject
extends Project
implements BindableRel

Implementation of Project in bindable calling convention.

Nested Class Summary

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

Project.Flags

Nested classes/interfaces inherited from interface org.apache.calcite.interpreter.InterpretableRel

InterpretableRel.InterpreterImplementor

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

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

Constructor Summary

Constructors

Constructor	Description
BindableProject(RelOptCluster cluster, RelTraitSet traitSet, RelNode input, List<? extends RexNode> projects, RelDataType rowType)

Method Summary

Modifier and Type	Method	Description
Enumerable<@Nullable Object[]>	bind(DataContext dataContext)	Executes this statement and returns an enumerable which will yield rows.
Bindables.BindableProject	copy(RelTraitSet traitSet, RelNode input, List<RexNode> projects, RelDataType rowType)	Copies a project.
Class<Object[]>	getElementType()	Gets the type of the element(s) that are returned in this collection.
Node	implement(InterpretableRel.InterpreterImplementor implementor)	Creates an interpreter node to implement this relational expression.

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

accept, computeSelfCost, containsOver, copy, copy, deepEquals0, deepHashCode0, explainTerms, getAliasedProjects, 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, getTable, 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.hint.Hintable

attachHints, withHints

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, getTable, getVariablesSet, isEnforcer, isValid, metadata, onRegister, recomputeDigest, register, replaceInput, stripped

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

getCluster, getDescription, getId, getTraitSet

Constructor Details

BindableProject

public BindableProject(RelOptCluster cluster,
 RelTraitSet traitSet,
 RelNode input,
 List<? extends RexNode> projects,
 RelDataType rowType)

Method Details

copy

public Bindables.BindableProject copy(RelTraitSet traitSet,
 RelNode input,
 List<RexNode> projects,
 RelDataType rowType)

Description copied from class: Project

Copies a project.

Specified by:

copy in class Project

Parameters:

traitSet - Traits

input - Input

projects - Project expressions

rowType - Output row type

Returns:

New Project if any parameter differs from the value of this Project, or just this if all the parameters are the same

See Also:

• Project.copy(RelTraitSet, List)

getElementType

public Class<Object[]> getElementType()

Description copied from interface: Typed

Gets the type of the element(s) that are returned in this collection.

Specified by:

getElementType in interface ArrayBindable

Specified by:

getElementType in interface Typed

bind

public Enumerable<@Nullable Object[]> bind(DataContext dataContext)

Description copied from interface: Bindable

Executes this statement and returns an enumerable which will yield rows. The environment parameter provides the values in the root of the environment (usually schemas).

Specified by:

bind in interface Bindable<@Nullable Object[]>

Parameters:

dataContext - Environment that provides tables

Returns:

Enumerable over rows

implement

public Node implement(InterpretableRel.InterpreterImplementor implementor)

Description copied from interface: InterpretableRel

Creates an interpreter node to implement this relational expression.

Specified by:

implement in interface InterpretableRel