de.fuberlin.wiwiss.d2rq.algebra

Class ColumnRenamerMap

java.lang.Object

de.fuberlin.wiwiss.d2rq.algebra.ColumnRenamer

de.fuberlin.wiwiss.d2rq.algebra.ColumnRenamerMap

public class ColumnRenamerMap
extends ColumnRenamer

A ColumnRenamer based on a fixed map of original and replacement columns.

Author:

Richard Cyganiak (richard@cyganiak.de)

Field Summary

Fields inherited from class de.fuberlin.wiwiss.d2rq.algebra.ColumnRenamer

NULL

Constructor Summary

Constructors

Constructor and Description
ColumnRenamerMap(Map<Attribute,Attribute> originalsToReplacements)

Method Summary

Methods

Modifier and Type	Method and Description
AliasMap	applyTo(AliasMap aliases)
Attribute	applyTo(Attribute original)
String	toString()

Methods inherited from class de.fuberlin.wiwiss.d2rq.algebra.ColumnRenamer

applyTo, applyTo, applyTo, applyTo, applyToJoinSet, applyToProjectionSet, invertMap

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

ColumnRenamerMap

public ColumnRenamerMap(Map<Attribute,Attribute> originalsToReplacements)

Method Detail

applyTo

public Attribute applyTo(Attribute original)

Specified by:

applyTo in class ColumnRenamer

Parameters:

original - A column

Returns:

The renamed version of that column, or the same column if the renamer does not apply to this argument

applyTo

public AliasMap applyTo(AliasMap aliases)

Specified by:

applyTo in class ColumnRenamer

toString

public String toString()

Overrides:

toString in class Object