org.apache.calcite.adapter.enumerable

Interface AggAddContext

All Superinterfaces:

AggResetContext, AggResultContext, NestedBlockBuilder

All Known Subinterfaces:

WinAggAddContext

All Known Implementing Classes:

AggAddContextImpl, WinAggAddContextImpl

public interface AggAddContext
extends AggResultContext

Information for a call to AggImplementor.implementAdd(AggContext, AggAddContext).

Typically, the aggregation implementation will use arguments() or rexArguments() to update aggregate value.

Method Summary

Methods

Modifier and Type	Method and Description
List<Expression>	arguments() Returns Linq4j form of arguments.
List<RexNode>	rexArguments() Returns RexNode representation of arguments.
RexToLixTranslator	rowTranslator() Returns a RexToLixTranslator suitable to transform the arguments.

Methods inherited from interface org.apache.calcite.adapter.enumerable.AggResetContext

accumulator

Methods inherited from interface org.apache.calcite.adapter.enumerable.NestedBlockBuilder

currentBlock, currentNullables, exitBlock, nestBlock, nestBlock, nestBlock

Method Detail

rexArguments

List<RexNode> rexArguments()

Returns RexNode representation of arguments. This can be useful for manual translation of required arguments with different NullPolicy.

Returns:

RexNode representation of arguments

arguments

List<Expression> arguments()

Returns Linq4j form of arguments. The resulting value is equivalent to rowTranslator().translateList(rexArguments()). This is handy if you need just operate on argument.

Returns:

Linq4j form of arguments.

rowTranslator

RexToLixTranslator rowTranslator()

Returns a RexToLixTranslator suitable to transform the arguments.

Returns:

RexToLixTranslator suitable to transform the arguments