edu.udo.cs.miningmart.m4.utils
Class InterM4FromConceptProjection

java.lang.Object
  edu.udo.cs.miningmart.m4.utils.InterM4Communicator
      edu.udo.cs.miningmart.m4.utils.InterM4FromConceptProjection

public class InterM4FromConceptProjection
extends InterM4Communicator

Helper class for standard communication between Concept (container) and Projection with the Concept in the role of the From-Concept.

Version:

$Id: InterM4FromConceptProjection.java,v 1.4 2006/09/27 14:59:55 euler Exp $

Author:

Martin Scholz

Constructor Summary

InterM4FromConceptProjection()

Method Summary

java.util.Collection	getCollection(java.lang.Object concept) Each container object contains a collection, which has to be backed, so an "add" or "remove" to the collection results in a corresponding "add" or "remove" to the underlying container data structure.
java.lang.Object	getSingleRef(M4Object projection) The M4Object different from the container object needs to have a reference to the container class.

Methods inherited from class edu.udo.cs.miningmart.m4.utils.InterM4Communicator

add, checkNameExists, remove, setCollectionTo, updateReferenceTo

Methods inherited from class java.lang.Object

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

Constructor Detail

InterM4FromConceptProjection

public InterM4FromConceptProjection()

Method Detail

getSingleRef

public java.lang.Object getSingleRef(M4Object projection)
                              throws M4Exception

Description copied from class: InterM4Communicator

The M4Object different from the container object needs to have a reference to the container class.

Parameters:

projection - a Projection

Returns:

the Projection's From-Concept

Throws:

M4Exception

See Also:

InterM4Communicator.getSingleRef(M4Object)

getCollection

public java.util.Collection getCollection(java.lang.Object concept)
                                   throws M4Exception

Description copied from class: InterM4Communicator

Each container object contains a collection, which has to be backed, so an "add" or "remove" to the collection results in a corresponding "add" or "remove" to the underlying container data structure. This method must never return null, but a backed empty Collection instead!

Parameters:

concept - a Concept

Returns:

the Concept's Collection of Projections with the concept in the role of the From-Concept

Throws:

M4Exception

See Also:

InterM4Communicator#getCollection(M4Object)