Package org.apache.calcite.rel.metadata

Interface BuiltInMetadata.ExpressionLineage.Handler

All Superinterfaces:

MetadataHandler<BuiltInMetadata.ExpressionLineage>

Enclosing interface:

BuiltInMetadata.ExpressionLineage

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public static interface BuiltInMetadata.ExpressionLineage.Handler
extends MetadataHandler<BuiltInMetadata.ExpressionLineage>

Handler API.

Method Summary

Modifier and Type	Method	Description
default MetadataDef<BuiltInMetadata.ExpressionLineage>	getDef()
@Nullable Set<RexNode>	getExpressionLineage(RelNode r, RelMetadataQuery mq, RexNode expression)

Method Details

getExpressionLineage

@Nullable Set<RexNode> getExpressionLineage(RelNode r,
 RelMetadataQuery mq,
 RexNode expression)

getDef

default MetadataDef<BuiltInMetadata.ExpressionLineage> getDef()

Specified by:

getDef in interface MetadataHandler<BuiltInMetadata.ExpressionLineage>