/*
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* Copyright (C) 2006-2010 University of Dundee. All rights reserved.
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*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License along
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package org.openmicroscopy.shoola.agents.util.finder;
import java.util.Collection;
import java.util.List;
import omero.gateway.SecurityContext;
import org.openmicroscopy.shoola.env.data.views.CallHandle;
import omero.gateway.model.ExperimenterData;
import omero.gateway.model.GroupData;
import omero.gateway.model.TagAnnotationData;
/**
* Loads the existing tags.
*
* @author Jean-Marie Burel
* <a href="mailto:j.burel@dundee.ac.uk">j.burel@dundee.ac.uk</a>
* @author Donald MacDonald
* <a href="mailto:donald@lifesci.dundee.ac.uk">donald@lifesci.dundee.ac.uk</a>
* @version 3.0
* @since 3.0-Beta4
*/
public class TagsLoader
extends FinderLoader
{
/** Handle to the asynchronous call so that we can cancel it. */
private CallHandle handle;
/**
* Creates a new instance.
*
* @param viewer The viewer this data loader is for.
* Mustn't be <code>null</code>.
* @param ctx The security context.
*/
public TagsLoader(Finder viewer, List<SecurityContext> ctx)
{
super(viewer, ctx);
}
/**
* Searches for values.
* @see FinderLoader#load()
*/
public void load()
{
handle = mhView.loadExistingAnnotations(ctx, TagAnnotationData.class,
-1, this);
}
/**
* Cancels the ongoing data retrieval.
* @see FinderLoader#cancel()
*/
public void cancel() { handle.cancel(); }
/**
* Feeds the result back to the viewer.
* @see FinderLoader#handleResult(Object)
*/
public void handleResult(Object result)
{
if (viewer.getState() == Finder.DISCARDED) return; //Async cancel.
viewer.setExistingTags((Collection) result);
}
}