edu.udo.cs.miningmart.m4.utils
Class InterM4OperatorConstraint

java.lang.Object
  edu.udo.cs.miningmart.m4.utils.InterM4Communicator
      edu.udo.cs.miningmart.m4.utils.InterM4OperatorConstraint

public class InterM4OperatorConstraint
extends InterM4Communicator

Helper class for standard communication between Operator (container) and Constraint.

Version:

$Id: InterM4OperatorConstraint.java,v 1.4 2006/09/27 14:59:55 euler Exp $

Author:

Martin Scholz

Constructor Summary

InterM4OperatorConstraint()

Method Summary

java.util.Collection	getCollection(java.lang.Object operator) 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 constraint) 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

InterM4OperatorConstraint

public InterM4OperatorConstraint()

Method Detail

getSingleRef

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

Description copied from class: InterM4Communicator

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

Parameters:

constraint - an Constraint

Returns:

the Constraint's Operator

Throws:

M4Exception

See Also:

InterM4Communicator.getSingleRef(M4Object)

getCollection

public java.util.Collection getCollection(java.lang.Object operator)
                                   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:

operator - an Operator

Returns:

the Operator's Collection of Constraints

Throws:

M4Exception

See Also:

InterM4Communicator#getCollection(M4Object)