import org.eclipse.gef.Disposable; //导入依赖的package包/类
/**
 * Calls dispose on all actions which implement the {@link Disposable}
 * interface so they can perform their own clean-up.
 */
public void dispose() {
	Iterator actions = getActions();
	while (actions.hasNext()) {
		IAction action = (IAction) actions.next();
		if (action instanceof Disposable)
			((Disposable) action).dispose();
	}
}
 

import org.eclipse.gef.Disposable; //导入依赖的package包/类
@Override
public void dispose()
{
    InstallOptionsModel.INSTANCE.removeModelListener(mModelListener);
    mJobScheduler.cancelJobs(mJobFamily);
    IInstallOptionsEditorInput input = (IInstallOptionsEditorInput)getEditorInput();
    Object source = input.getSource();
    if(source instanceof IFile) {
        IFile file = (IFile)source;
        file.getWorkspace().removeResourceChangeListener(mResourceListener);
    }
    mMarkerPositions.clear();
    IDocument document = getDocumentProvider().getDocument(input);
    document.removePositionUpdater(mMarkerPositionUpdater);
    if(document.containsPositionCategory(MARKER_CATEGORY)) {
        try {
            document.removePositionCategory(MARKER_CATEGORY);
        }
        catch (BadPositionCategoryException e) {
            InstallOptionsPlugin.getDefault().log(e);
        }
    }
    mINIFile.disconnect(document);
    mINIFile.removeListener(this);
    ((ProjectionViewer)getSourceViewer()).removeProjectionListener(this);
    ((TextViewer)getSourceViewer()).removePostSelectionChangedListener(mSelectionSynchronizer);
    getSourceViewer().getSelectionProvider().removeSelectionChangedListener(mSelectionSynchronizer);
    IAction action = super.getAction(PreviewAction.PREVIEW_CLASSIC_ID);
    if(action instanceof Disposable) {
        ((Disposable)action).dispose();
    }
    action = super.getAction(PreviewAction.PREVIEW_MUI_ID);
    if(action instanceof Disposable) {
        ((Disposable)action).dispose();
    }
    super.dispose();
}
 

import org.eclipse.gef.Disposable; //导入依赖的package包/类
private void disposePalette() {
    if (getEditDomain().getPaletteViewer() != null) {

        if (getPaletteViewerProvider() instanceof UrnPaletteViewerProvider) {
            UrnPaletteViewerProvider p = (UrnPaletteViewerProvider) getPaletteViewerProvider();
            p.unconfigurePaletteViewer(getEditDomain().getPaletteViewer());

        }
        getSite().getWorkbenchWindow().getSelectionService().removeSelectionListener(this);

        getEditDomain().getPaletteViewer().getEditPartRegistry().clear();
        getEditDomain().getPaletteViewer().setKeyHandler(null);
        getEditDomain().getPaletteViewer().setControl(null);
        getEditDomain().getPaletteViewer().setPaletteRoot(null);

        // getEditDomain().setPaletteViewer(new PaletteViewer());
    }

    getGraphicalViewer().setKeyHandler(null);
    getEditorSite().setSelectionProvider(null);

    if (paletteRoot instanceof Disposable) {
        ((Disposable) paletteRoot).dispose();
    }

    paletteRoot = null;
}