be.SIRAPRISE.ra

Class TCloseProxy

java.lang.Object

be.SIRAPRISE.ra.RelationProxy

be.SIRAPRISE.ra.TCloseProxy

All Implemented Interfaces:

IRelation

public class TCloseProxy
extends RelationProxy

Author:

erwin

Constructor Summary

Constructors

Constructor and Description
TCloseProxy(RelationProxy tcloseInput, java.util.Map<NameIdentifier,NameIdentifier> matchby)

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

TCloseProxy

public TCloseProxy(RelationProxy tcloseInput,
                   java.util.Map<NameIdentifier,NameIdentifier> matchby)

Parameters:

tcloseInput - the argument to be subjected to the tclose

matchby - The specifications of how which attribute values are to be compared when determining whether to tuples match the closure condition

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