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// $Id$
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/**
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* Copyright (C) 2015 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.cdm.api.application;
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import java.util.ArrayList;
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import java.util.HashSet;
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import java.util.List;
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import java.util.Set;
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/**
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* @author cmathew
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* @date 18 Jun 2015
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*
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*/
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public class CdmDataChangeService implements ICdmDataChangeService {
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protected final Set<ICdmChangeListener> listeners;
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private final List<CdmChangeEvent> currentEvents;
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public CdmDataChangeService() {
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listeners = new HashSet<ICdmChangeListener>();
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currentEvents = new ArrayList<CdmChangeEvent>();
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.store.ICdmDataChangeService#register(eu.etaxonomy.cdm.api.application.ICdmChangeListener)
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*/
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@Override
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public void register(ICdmChangeListener listener) {
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listeners.add(listener);
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.cdm.api.application.ICdmDataChangeService#unregister(eu.etaxonomy.cdm.api.application.ICdmChangeListener)
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*/
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@Override
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public void unregister(ICdmChangeListener listener) {
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listeners.remove(listener);
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.store.ICdmDataChangeService#addEvent(eu.etaxonomy.cdm.api.application.CdmChangeEvent)
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*/
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@Override
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public void addEvent(CdmChangeEvent event) {
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currentEvents.add(event);
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.store.ICdmDataChangeService#fireCurrentChangeEvents(boolean)
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*/
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@Override
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public void fireCurrentChangeEvents(boolean async) {
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try {
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for(CdmChangeEvent event : currentEvents) {
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fireChangeEvent(event,async);
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}
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} finally {
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currentEvents.clear();
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}
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.store.ICdmDataChangeService#fireChangeEvent(eu.etaxonomy.cdm.api.application.CdmChangeEvent, boolean)
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*/
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@Override
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public void fireChangeEvent(final CdmChangeEvent event, boolean async) {
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for(final ICdmChangeListener listener : listeners) {
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listener.onChange(event);
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}
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}
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/* (non-Javadoc)
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* @see eu.etaxonomy.taxeditor.store.ICdmDataChangeService#clear()
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*/
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@Override
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public void clear() {
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listeners.clear();
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currentEvents.clear();
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}
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}
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