org.apache.calcite.rel.metadata

Interface BuiltInMetadata.ColumnOrigin.Handler

All Superinterfaces:

MetadataHandler<BuiltInMetadata.ColumnOrigin>

Enclosing interface:

BuiltInMetadata.ColumnOrigin

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.ColumnOrigin.Handler
extends MetadataHandler<BuiltInMetadata.ColumnOrigin>

Handler API.

Method Summary

Modifier and Type	Method and Description
@Nullable Set<RelColumnOrigin>	getColumnOrigins(RelNode r, RelMetadataQuery mq, int outputColumn)
default MetadataDef<BuiltInMetadata.ColumnOrigin>	getDef()

Methods inherited from interface org.apache.calcite.rel.metadata.MetadataHandler

handlerMethods

Method Detail

getColumnOrigins

@Nullable Set<RelColumnOrigin> getColumnOrigins(RelNode r,
                                                RelMetadataQuery mq,
                                                int outputColumn)

getDef

default MetadataDef<BuiltInMetadata.ColumnOrigin> getDef()

Specified by:

getDef in interface MetadataHandler<BuiltInMetadata.ColumnOrigin>