RelMdMemory (Apache Calcite API)

java.lang.Object
- org.apache.calcite.rel.metadata.RelMdMemory

All Implemented Interfaces:

MetadataHandler<BuiltInMetadata.Memory>
```
public class RelMdMemory
extends java.lang.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 RelMetadataProvider SOURCE
Source for BuiltInMetadata.Memory.

Constructor Summary

Constructors
Modifier Constructor Description

protected RelMdMemory()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`java.lang.Double`	`cumulativeMemoryWithinPhase(RelNode rel, RelMetadataQuery mq)`	Catch-all implementation for `BuiltInMetadata.Memory.cumulativeMemoryWithinPhase()`, invoked using reflection.
`java.lang.Double`	`cumulativeMemoryWithinPhaseSplit(RelNode rel, RelMetadataQuery mq)`	Catch-all implementation for `BuiltInMetadata.Memory.cumulativeMemoryWithinPhaseSplit()`, invoked using reflection.
`MetadataDef<BuiltInMetadata.Memory>`	`getDef()`
`java.lang.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 Detail
  - SOURCE
```
public static final RelMetadataProvider SOURCE
```
    Source for BuiltInMetadata.Memory.
- Constructor Detail
  - RelMdMemory
```
protected RelMdMemory()
```
- Method Detail
  - getDef
```
public MetadataDef<BuiltInMetadata.Memory> getDef()
```
    Specified by:
    
    getDef in interface MetadataHandler<BuiltInMetadata.Memory>
  - memory
```
public java.lang.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 java.lang.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 java.lang.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)