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/**
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* Copyright (C) 2007 EDIT
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* European Distributed Institute of Taxonomy
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* http://www.e-taxonomy.eu
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*
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* The contents of this file are subject to the Mozilla Public License Version 1.1
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* See LICENSE.TXT at the top of this package for the full license terms.
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*/
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package eu.etaxonomy.taxeditor.view.datasource.handler;
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import org.eclipse.core.commands.AbstractHandler;
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import org.eclipse.core.commands.ExecutionEvent;
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import org.eclipse.core.commands.ExecutionException;
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import org.eclipse.jface.viewers.ISelection;
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import org.eclipse.jface.viewers.StructuredSelection;
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import org.eclipse.ui.handlers.HandlerUtil;
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import eu.etaxonomy.taxeditor.store.StoreUtil;
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import eu.etaxonomy.taxeditor.view.datasource.CdmDataSourceViewPart;
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import eu.etaxonomy.taxeditor.view.datasource.CdmMetaDataAwareDataSourceContainer;
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/**
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* @author n.hoffmann
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* @created 19.05.2009
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* @version 1.0
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*/
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abstract class AbstractDataSourceHandler extends AbstractHandler {
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/* (non-Javadoc)
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* @see org.eclipse.core.commands.IHandler#execute(org.eclipse.core.commands.ExecutionEvent)
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*/
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/** {@inheritDoc} */
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public Object execute(ExecutionEvent event) throws ExecutionException {
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boolean refresh = specificExecute(event);
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CdmDataSourceViewPart view = (CdmDataSourceViewPart) StoreUtil.showView(CdmDataSourceViewPart.ID);
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if(refresh) view.refresh();
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return null;
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}
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/**
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* <p>getSelectedDataSourceContainer</p>
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*
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* @param event a {@link org.eclipse.core.commands.ExecutionEvent} object.
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* @return a {@link eu.etaxonomy.taxeditor.view.datasource.CdmMetaDataAwareDataSourceContainer} object.
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*/
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protected CdmMetaDataAwareDataSourceContainer getSelectedDataSourceContainer(ExecutionEvent event){
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ISelection menuSelection = HandlerUtil.getCurrentSelection(event);
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CdmMetaDataAwareDataSourceContainer container = (CdmMetaDataAwareDataSourceContainer) ((StructuredSelection) menuSelection).getFirstElement();
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return container;
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}
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/**
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* <p>specificExecute</p>
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*
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* @param event a {@link org.eclipse.core.commands.ExecutionEvent} object.
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* @return a boolean.
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*/
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public abstract boolean specificExecute(ExecutionEvent event);
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}
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