be.SIRAPRISE.ra

Class AggregateProxy

java.lang.Object

be.SIRAPRISE.ra.RelationProxy

be.SIRAPRISE.ra.AggregateProxy

All Implemented Interfaces:

IRelation

public class AggregateProxy
extends RelationProxy

Author:

erwin

Constructor Summary

Constructors

Constructor and Description
AggregateProxy(RelationProxy aggregateInput, java.util.Map<NameIdentifier,java.lang.String> expressions)

Method Summary

Modifier and Type	Method and Description
java.lang.String	getHostExpressionEvaluationText() Gets The expression text for the expression to be evaluated by the host

Methods inherited from class be.SIRAPRISE.ra.RelationProxy

aggregate, dividedyper, extend, getHost, getRelationBuffer, group, gtclose, intersect, intersectUsing, isProxy, join, joinUsing, leftJoin, leftJoinUsing, minus, minusUsing, pack, project, rename, restrict, semijoin, semijoinUsing, semiminus, semiminusUsing, summarizeby, tclose, transform, ungroup, union, unionUsing, unpack, xminus, xminusUsing

Methods inherited from class java.lang.Object

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

Constructor Detail

AggregateProxy

public AggregateProxy(RelationProxy aggregateInput,
                      java.util.Map<NameIdentifier,java.lang.String> expressions)

Parameters:

aggregateInput - The input expression

expressions - The aggregate expressions

Method Detail

getHostExpressionEvaluationText

public java.lang.String getHostExpressionEvaluationText()

Description copied from interface: IRelation

Gets The expression text for the expression to be evaluated by the host

Specified by:

getHostExpressionEvaluationText in interface IRelation

Specified by:

getHostExpressionEvaluationText in class RelationProxy

Returns:

The expression text for the expression to be sent to the host for evaluation