be.SIRAPRISE.ra

Class TransformProxy

java.lang.Object

be.SIRAPRISE.ra.RelationProxy

be.SIRAPRISE.ra.TransformProxy

All Implemented Interfaces:

IRelation

public final class TransformProxy
extends RelationProxy

TransformProxy

Author:

erwin

Constructor Summary

Constructors

Constructor and Description
TransformProxy(RelationProxy input, java.util.Map<NameIdentifier,java.lang.String> transformSpecs) Creates the TransformProxy

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

TransformProxy

public TransformProxy(RelationProxy input,
                      java.util.Map<NameIdentifier,java.lang.String> transformSpecs)

Creates the TransformProxy

Parameters:

input - The input to the transform operation

transformSpecs - the specification of which transformations to apply

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