org.apache.calcite.rel.logical

Class LogicalWindow

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.SingleRel

org.apache.calcite.rel.core.Window

org.apache.calcite.rel.logical.LogicalWindow

All Implemented Interfaces:

Cloneable, RelOptNode, RelNode

public final class LogicalWindow
extends Window

Sub-class of Window not targeted at any particular engine or calling convention.

Nested Class Summary

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

Window.Group, Window.RexWinAggCall

Field Summary

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

constants, groups

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

digest, id, rowType, traitSet

Constructor Summary

Constructors

Constructor and Description
LogicalWindow(RelOptCluster cluster, RelTraitSet traits, RelNode child, List<RexLiteral> constants, RelDataType rowType, List<Window.Group> groups) Creates a LogicalWindow.

Method Summary

Methods

Modifier and Type	Method and Description
LogicalWindow	copy(RelTraitSet traitSet, List<RelNode> inputs) Creates a copy of this relational expression, perhaps changing traits and inputs.
static RelNode	create(RelOptCluster cluster, RelTraitSet traitSet, RelNode child, RexProgram program) Creates a LogicalWindow.

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

computeSelfCost, explainTerms, getCollation, getConstants, getProjectOrdinals, isValid

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

childrenAccept, deriveRowType, getInput, getInputs, getRows, replaceInput

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

accept, accept, collectVariablesSet, collectVariablesUsed, computeDigest, explain, getChildExps, getCluster, getCollationList, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getQuery, getRelTypeName, getRowType, getTable, getTraitSet, getVariablesStopped, isDistinct, isKey, metadata, onRegister, recomputeDigest, register, sole, toString

Methods inherited from class java.lang.Object

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

Constructor Detail

LogicalWindow

public LogicalWindow(RelOptCluster cluster,
             RelTraitSet traits,
             RelNode child,
             List<RexLiteral> constants,
             RelDataType rowType,
             List<Window.Group> groups)

Creates a LogicalWindow.

Parameters:

cluster - Cluster

child - Input relational expression

constants - List of constants that are additional inputs

rowType - Output row type

groups - Windows

Method Detail

copy

public LogicalWindow 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

create

public static RelNode create(RelOptCluster cluster,
             RelTraitSet traitSet,
             RelNode child,
             RexProgram program)

Creates a LogicalWindow.