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Eclipse GEF
3.3

org.eclipse.gef.editpolicies
Class ConnectionEditPolicy

java.lang.Object
  extended by

org.eclipse.gef.editpolicies.AbstractEditPolicy
      extended by
org.eclipse.gef.editpolicies.ConnectionEditPolicy
All Implemented Interfaces:
EditPolicy, RequestConstants

public abstract class ConnectionEditPolicy
extends AbstractEditPolicy

A model-based EditPolicy for connections. A model-based EditPolicy only knows about the host's model and the basic operations it supports. By default, ConnectionEditPolicy understands only DELETE. Subclasses can add support to handle additional behavior specific to the model.

This EditPolicy is not a GraphicalEditPolicy, and should not be used to show feedback or interact with the host's visuals in any way.

Since:
2.0

Field Summary
 
Fields inherited from interface org.eclipse.gef. EditPolicy
COMPONENT_ROLE, CONNECTION_BENDPOINTS_ROLE, CONNECTION_ENDPOINTS_ROLE, CONNECTION_ROLE, CONTAINER_ROLE, DIRECT_EDIT_ROLE, GRAPHICAL_NODE_ROLE, LAYOUT_ROLE, NODE_ROLE, PRIMARY_DRAG_ROLE, SELECTION_FEEDBACK_ROLE, TREE_CONTAINER_ROLE
 
Fields inherited from interface org.eclipse.gef. RequestConstants
REQ_ADD, REQ_ALIGN, REQ_ALIGN_CHILDREN, REQ_CLONE, REQ_CONNECTION_END, REQ_CONNECTION_START, REQ_CREATE, REQ_CREATE_BENDPOINT, REQ_DELETE, REQ_DELETE_DEPENDANT, REQ_DIRECT_EDIT, REQ_MOVE, REQ_MOVE_BENDPOINT, REQ_MOVE_CHILDREN, REQ_OPEN, REQ_ORPHAN, REQ_ORPHAN_CHILDREN, REQ_RECONNECT_SOURCE, REQ_RECONNECT_TARGET, REQ_RESIZE, REQ_RESIZE_CHILDREN, REQ_SELECTION, REQ_SELECTION_HOVER
 
Constructor Summary
ConnectionEditPolicy ()
           
 
Method Summary
  Command getCommand ( Request request)
          Returns null by default.
protected abstract   Command getDeleteCommand ( GroupRequest request)
          Subclasses should implement to return the Command to delete the connection.
 
Methods inherited from class org.eclipse.gef.editpolicies. AbstractEditPolicy
activate, deactivate, debugFeedback, eraseSourceFeedback, eraseTargetFeedback, getHost, getTargetEditPart, setHost, showSourceFeedback, showTargetFeedback, toString, understandsRequest
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait
 

Constructor Detail

ConnectionEditPolicy

public ConnectionEditPolicy()
Method Detail

getCommand

public 
Command getCommand(
Request request)
Description copied from class: AbstractEditPolicy
Returns null by default. null is used to indicate that the EditPolicy does not contribute to the specified Request.

Specified by:
getCommand in interface EditPolicy
Overrides:
getCommand in class AbstractEditPolicy
See Also:
EditPolicy.getCommand(Request)

getDeleteCommand

protected abstract 
Command getDeleteCommand(
GroupRequest request)
Subclasses should implement to return the Command to delete the connection.

Parameters:
request - the DeleteRequest
Returns:
the Command to delete the connection

Eclipse GEF
3.3

Copyright (c) IBM Corp. and others 2000, 2007. All Rights Reserved.

 
 
  Published under the terms of the Eclipse Public License Version 1.0 ("EPL") Design by Interspire