AssociationEvent (NetBeans MDR API) - NetBeans API Javadoc 4.1.0

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org.netbeans.api.mdr.events
Class AssociationEvent

java.lang.Object
  java.util.EventObject
      org.netbeans.api.mdr.events.MDRChangeEvent
          org.netbeans.api.mdr.events.AssociationEvent

All Implemented Interfaces:: Serializable

public class AssociationEvent
extends MDRChangeEvent

MDR Event used for representing association-related events. Any association event is described the way that there is one association end taken as "fixed". This means that the change will be described from the perspective of this association end. For changes to the association caused by modifying a reference or live collection returned from a getter for an association end this behavior is very intuitive - the fixed association end will be the exposed end of the reference (or the fixed element will be the element provided to getter for association end). For direct association proxy operations (i.e. remove or add), the event object looks as follows:

remove - the fixed element is any of the two linked elements, old element represents the element on the other side of the link, new element is null
add - the fixed element is any of the two linked elements, old element is null, the element on the other side of the link is represented as the new element.

See Also:: Serialized Form

Field Summary

static int EVENT_ASSOCIATION_ADD
          Identifier of the event type indicating that a new link is to be/was added.

static int EVENT_ASSOCIATION_REMOVE
          Identifier of the event type indicating that an existing link is to be/was removed.

static int EVENT_ASSOCIATION_SET
          Identifier of the event type indicating that one end of an existing association link is to be/was modified.

static int EVENTMASK_ASSOCIATION
          Bitmask for event types related to operations with associations.

static int POSITION_NONE
          Value indicating unspecified position

Fields inherited from class org.netbeans.api.mdr.events.MDRChangeEvent

EVENTMASK_ALL, EVENTMASK_ON_ASSOCIATION, EVENTMASK_ON_CLASS, EVENTMASK_ON_INSTANCE, EVENTMASK_ON_PACKAGE, EVENTMASK_ON_REPOSITORY

Fields inherited from class java.util.EventObject

source

Constructor Summary

AssociationEvent(javax.jmi.reflect.RefAssociation source, int type, javax.jmi.reflect.RefObject fixedElement, String endName, javax.jmi.reflect.RefObject oldElement, javax.jmi.reflect.RefObject newElement, int position)
          Creates new AssociationEvent object.

Method Summary

String getEndName()
          Returns name of the fixed association end.

javax.jmi.reflect.RefObject getFixedElement()
          Returns the element on the fixed side of the affected link.

javax.jmi.reflect.RefObject getNewElement()
          Returns the new element on the non-fixed side of the affected link.

javax.jmi.reflect.RefObject getOldElement()
          Returns the original element on the non-fixed side of the affected link.

int getPosition()
          Returns position of the non-fixed element of the affected link.

Methods inherited from class org.netbeans.api.mdr.events.MDRChangeEvent

getType, isOfType

Methods inherited from class java.util.EventObject

getSource, toString

Methods inherited from class java.lang.Object

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

Field Detail

POSITION_NONE

public static final int POSITION_NONE

Value indicating unspecified position

See Also:: Constant Field Values

EVENTMASK_ASSOCIATION

public static final int EVENTMASK_ASSOCIATION

Bitmask for event types related to operations with associations. Can be used for registering a listener for listening to all association-related events.

See Also:: Constant Field Values

EVENT_ASSOCIATION_SET

public static final int EVENT_ASSOCIATION_SET

Identifier of the event type indicating that one end of an existing association link is to be/was modified.

See Also:: Constant Field Values

EVENT_ASSOCIATION_ADD

public static final int EVENT_ASSOCIATION_ADD

Identifier of the event type indicating that a new link is to be/was added.

See Also:: Constant Field Values

EVENT_ASSOCIATION_REMOVE

public static final int EVENT_ASSOCIATION_REMOVE

Identifier of the event type indicating that an existing link is to be/was removed.

See Also:: Constant Field Values

Constructor Detail