Package org.apache.calcite.rel.logical

Class LogicalValues

java.lang.Object

org.apache.calcite.rel.AbstractRelNode

org.apache.calcite.rel.core.Values

org.apache.calcite.rel.logical.LogicalValues

All Implemented Interfaces:

Cloneable, RelOptNode, Hintable, RelNode

public class LogicalValues
extends Values

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

Nested Class Summary

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

RelNode.Context

Field Summary

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

hints, IS_EMPTY, IS_EMPTY_J, IS_NOT_EMPTY, tuples

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

digest, id, rowType, traitSet

Constructor Summary

Constructors

Constructor	Description
LogicalValues(RelOptCluster cluster, RelTraitSet traitSet, List<RelHint> hints, RelDataType rowType, com.google.common.collect.ImmutableList<com.google.common.collect.ImmutableList<RexLiteral>> tuples)	Creates a LogicalValues.
LogicalValues(RelOptCluster cluster, RelTraitSet traitSet, RelDataType rowType, com.google.common.collect.ImmutableList<com.google.common.collect.ImmutableList<RexLiteral>> tuples)	Creates a LogicalValues.
LogicalValues(RelOptCluster cluster, RelDataType rowType, com.google.common.collect.ImmutableList<com.google.common.collect.ImmutableList<RexLiteral>> tuples)	Deprecated.
LogicalValues(RelInput input)	Creates a LogicalValues by parsing serialized output.

Method Summary

Modifier and Type	Method	Description
RelNode	accept(RelShuttle shuttle)	Accepts a visit from a shuttle.
RelNode	copy(RelTraitSet traitSet, List<RelNode> inputs)	Creates a copy of this relational expression, perhaps changing traits and inputs.
static LogicalValues	create(RelOptCluster cluster, RelDataType rowType, com.google.common.collect.ImmutableList<com.google.common.collect.ImmutableList<RexLiteral>> tuples)	Creates a LogicalValues.
static LogicalValues	createEmpty(RelOptCluster cluster, RelDataType rowType)	Creates a LogicalValues that outputs no rows of a given row type.
static LogicalValues	createOneRow(RelOptCluster cluster)	Creates a LogicalValues that outputs one row and one column.
RelNode	withHints(List<RelHint> hintList)	Returns a new relational expression with the specified hints hintList.

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

computeSelfCost, deriveRowType, estimateRowCount, explainTerms, getHints, getTuples, getTuples, isEmpty, isNotEmpty

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

accept, childrenAccept, collectVariablesSet, collectVariablesUsed, deepEquals, deepHashCode, equals, explain, getCluster, getConvention, getCorrelVariable, getDescription, getDigest, getExpectedInputRowType, getId, getInput, getInputs, getRelDigest, getRelTypeName, getRowType, getTable, getTraitSet, getVariablesSet, hashCode, isEnforcer, isValid, metadata, onRegister, recomputeDigest, register, replaceInput, 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

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

explain, fieldIsNullable, stripped

Constructor Details

LogicalValues

public LogicalValues(RelOptCluster cluster,
 RelTraitSet traitSet,
 List<RelHint> hints,
 RelDataType rowType,
 com.google.common.collect.ImmutableList<com.google.common.collect.ImmutableList<RexLiteral>> tuples)

Creates a LogicalValues.

Use create(org.apache.calcite.plan.RelOptCluster, org.apache.calcite.rel.type.RelDataType, com.google.common.collect.ImmutableList<com.google.common.collect.ImmutableList<org.apache.calcite.rex.RexLiteral>>) unless you know what you're doing.

Parameters:

cluster - Cluster that this relational expression belongs to

hints - Hints for this node

rowType - Row type for tuples produced by this rel

tuples - 2-dimensional array of tuple values to be produced; outer list contains tuples; each inner list is one tuple; all tuples must be of same length, conforming to rowType

LogicalValues

public LogicalValues(RelOptCluster cluster,
 RelTraitSet traitSet,
 RelDataType rowType,
 com.google.common.collect.ImmutableList<com.google.common.collect.ImmutableList<RexLiteral>> tuples)

Creates a LogicalValues.

Use create(org.apache.calcite.plan.RelOptCluster, org.apache.calcite.rel.type.RelDataType, com.google.common.collect.ImmutableList<com.google.common.collect.ImmutableList<org.apache.calcite.rex.RexLiteral>>) unless you know what you're doing.

Parameters:

cluster - Cluster that this relational expression belongs to

rowType - Row type for tuples produced by this rel

tuples - 2-dimensional array of tuple values to be produced; outer list contains tuples; each inner list is one tuple; all tuples must be of same length, conforming to rowType

LogicalValues

@Deprecated
public LogicalValues(RelOptCluster cluster,
 RelDataType rowType,
 com.google.common.collect.ImmutableList<com.google.common.collect.ImmutableList<RexLiteral>> tuples)

Deprecated.

LogicalValues

public LogicalValues(RelInput input)

Creates a LogicalValues by parsing serialized output.

Method Details

create

public static LogicalValues create(RelOptCluster cluster,
 RelDataType rowType,
 com.google.common.collect.ImmutableList<com.google.common.collect.ImmutableList<RexLiteral>> tuples)

Creates a LogicalValues.

copy

public RelNode 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

createEmpty

public static LogicalValues createEmpty(RelOptCluster cluster,
 RelDataType rowType)

Creates a LogicalValues that outputs no rows of a given row type.

createOneRow

public static LogicalValues createOneRow(RelOptCluster cluster)

Creates a LogicalValues that outputs one row and one column.

accept

public RelNode accept(RelShuttle shuttle)

Description copied from interface: RelNode

Accepts a visit from a shuttle.

Specified by:

accept in interface RelNode

Overrides:

accept in class AbstractRelNode

Parameters:

shuttle - Shuttle

Returns:

A copy of this node incorporating changes made by the shuttle to this node's children

withHints

public RelNode withHints(List<RelHint> hintList)

Description copied from interface: Hintable

Returns a new relational expression with the specified hints hintList.

This method should be overridden by every logical node that supports hint. It is only for internal use during decorrelation.

Sub-class should return a new copy of the relational expression.

The default implementation returns the relational expression directly only because not every kind of relational expression supports hints.

Returns:

Relational expression with set up hints