Package org.apache.calcite.rel.metadata

Class RelMdMemory

java.lang.Object

org.apache.calcite.rel.metadata.RelMdMemory

All Implemented Interfaces:

MetadataHandler<BuiltInMetadata.Memory>

public class RelMdMemory
extends Object
implements MetadataHandler<BuiltInMetadata.Memory>

Default implementations of the BuiltInMetadata.Memory metadata provider for the standard logical algebra.

See Also:

• RelMetadataQuery.isPhaseTransition(org.apache.calcite.rel.RelNode)
• RelMetadataQuery.splitCount(org.apache.calcite.rel.RelNode)

Field Summary

Fields

Modifier and Type	Field	Description
static final RelMetadataProvider	SOURCE	Source for BuiltInMetadata.Memory.

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	RelMdMemory()

Method Summary

Modifier and Type	Method	Description
@Nullable Double	cumulativeMemoryWithinPhase(RelNode rel, RelMetadataQuery mq)	Catch-all implementation for BuiltInMetadata.Memory.cumulativeMemoryWithinPhase(), invoked using reflection.
@Nullable Double	cumulativeMemoryWithinPhaseSplit(RelNode rel, RelMetadataQuery mq)	Catch-all implementation for BuiltInMetadata.Memory.cumulativeMemoryWithinPhaseSplit(), invoked using reflection.
MetadataDef<BuiltInMetadata.Memory>	getDef()
@Nullable Double	memory(RelNode rel, RelMetadataQuery mq)	Catch-all implementation for BuiltInMetadata.Memory.memory(), invoked using reflection.

Methods inherited from class java.lang.Object

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

Field Details

SOURCE

public static final RelMetadataProvider SOURCE

Source for BuiltInMetadata.Memory.

Constructor Details

RelMdMemory

protected RelMdMemory()

Method Details

getDef

public MetadataDef<BuiltInMetadata.Memory> getDef()

Specified by:

getDef in interface MetadataHandler<BuiltInMetadata.Memory>

memory

public @Nullable Double memory(RelNode rel,
 RelMetadataQuery mq)

Catch-all implementation for BuiltInMetadata.Memory.memory(), invoked using reflection.

See Also:

• RelMetadataQuery.memory(org.apache.calcite.rel.RelNode)

cumulativeMemoryWithinPhase

public @Nullable Double cumulativeMemoryWithinPhase(RelNode rel,
 RelMetadataQuery mq)

Catch-all implementation for BuiltInMetadata.Memory.cumulativeMemoryWithinPhase(), invoked using reflection.

See Also:

• RelMetadataQuery.memory(org.apache.calcite.rel.RelNode)

cumulativeMemoryWithinPhaseSplit

public @Nullable Double cumulativeMemoryWithinPhaseSplit(RelNode rel,
 RelMetadataQuery mq)

Catch-all implementation for BuiltInMetadata.Memory.cumulativeMemoryWithinPhaseSplit(), invoked using reflection.

See Also:

• RelMetadataQuery.cumulativeMemoryWithinPhaseSplit(org.apache.calcite.rel.RelNode)