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Eclipse Platform
Release 3.5
Class Resource

  extended by
Direct Known Subclasses:
Color, Cursor, Font, GC, Image, Path, Pattern, Region, TextLayout, Transform

public abstract class Resource
extends Object

This class is the abstract superclass of all graphics resource objects. Resources created by the application must be disposed.

IMPORTANT: This class is intended to be subclassed only within the SWT implementation. However, it has not been marked final to allow those outside of the SWT development team to implement patched versions of the class in order to get around specific limitations in advance of when those limitations can be addressed by the team. Any class built using subclassing to access the internals of this class will likely fail to compile or run between releases and may be strongly platform specific. Subclassing should not be attempted without an intimate and detailed understanding of the workings of the hierarchy. No support is provided for user-written classes which are implemented as subclasses of this class.

See Also:
dispose(), isDisposed(), Sample code and further information

Constructor Summary
Resource ()
Method Summary
 void dispose ()
          Disposes of the operating system resources associated with this resource.
  Device getDevice ()
          Returns the Device where this resource was created.
abstract  boolean isDisposed ()
          Returns true if the resource has been disposed, and false otherwise.
Methods inherited from class java.lang. Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail


public Resource()
Method Detail


public void dispose()
Disposes of the operating system resources associated with this resource. Applications must dispose of all resources which they allocate.


Device getDevice()
Returns the Device where this resource was created.

Device the device of the receiver


public abstract boolean isDisposed()
Returns true if the resource has been disposed, and false otherwise.

This method gets the dispose state for the resource. When a resource has been disposed, it is an error to invoke any other method using the resource.

true when the resource is disposed and false otherwise

Eclipse Platform
Release 3.5

Guidelines for using Eclipse APIs.

Copyright (c) Eclipse contributors and others 2000, 2008. All rights reserved.

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