Package org.apache.calcite.adapter.enumerable

Class EnumerableBindable

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.convert.ConverterImpl

org.apache.calcite.adapter.enumerable.EnumerableBindable

All Implemented Interfaces:

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

public class EnumerableBindable
extends ConverterImpl
implements BindableRel

Relational expression that converts an enumerable input to interpretable calling convention.

See Also:

• EnumerableConvention
• BindableConvention

Nested Class Summary

Nested Classes

Modifier and Type	Class	Description
static class	EnumerableBindable.EnumerableToBindableConverterRule	Rule that converts any enumerable relational expression to bindable.

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.convert.ConverterImpl

inTraits, traitDef

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

Modifier	Constructor	Description
protected	EnumerableBindable(RelOptCluster cluster, RelNode input)

Method Summary

Modifier and Type	Method	Description
Enumerable<@Nullable Object[]>	bind(DataContext dataContext)	Executes this statement and returns an enumerable which will yield rows.
EnumerableBindable	copy(RelTraitSet traitSet, List<RelNode> inputs)	Creates a copy of this relational expression, perhaps changing traits and inputs.
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.convert.ConverterImpl

cannotImplement, computeSelfCost, getInputTraits, getTraitDef

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

childrenAccept, deriveRowType, estimateRowCount, explainTerms, getInput, getInputs, replaceInput

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

accept, accept, collectVariablesSet, collectVariablesUsed, deepEquals, deepHashCode, equals, explain, getCluster, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getRelDigest, getRelTypeName, getRowType, getTable, getTraitSet, getVariablesSet, hashCode, isEnforcer, isValid, 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.convert.Converter

getInput

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

accept, accept, childrenAccept, collectVariablesSet, collectVariablesUsed, computeSelfCost, 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

EnumerableBindable

protected EnumerableBindable(RelOptCluster cluster,
 RelNode input)

Method Details

copy

public EnumerableBindable copy(RelTraitSet traitSet,
 List<RelNode> inputs)

Description copied from interface: RelNode

Creates a copy of this relational expression, perhaps changing traits and inputs.

Sub-classes with other important attributes are encouraged to create variants of this method with more parameters.

Specified by:

copy in interface RelNode

Overrides:

copy in class AbstractRelNode

Parameters:

traitSet - Trait set

inputs - Inputs

Returns:

Copy of this relational expression, substituting traits and inputs

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