/* ******************************************************************************
* Copyright (c) 2006-2012 XMind Ltd. and others.
*
* This file is a part of XMind 3. XMind releases 3 and
* above are dual-licensed under the Eclipse Public License (EPL),
* which is available at http://www.eclipse.org/legal/epl-v10.html
* and the GNU Lesser General Public License (LGPL),
* which is available at http://www.gnu.org/licenses/lgpl.html
* See http://www.xmind.net/license.html for details.
*
* Contributors:
* XMind Ltd. - initial API and implementation
*******************************************************************************/
package org.xmind.core.event;
import java.util.ArrayList;
import java.util.List;
public abstract class CoreEventRegisterBase implements ICoreEventRegister {
private List<ICoreEventRegistration> regs = null;
protected void addRegistration(ICoreEventRegistration reg) {
if (reg == null)
return;
if (regs == null)
regs = new ArrayList<ICoreEventRegistration>();
regs.add(reg);
}
public void unregisterAll() {
if (regs != null) {
for (ICoreEventRegistration reg : regs) {
reg.unregister();
}
regs = null;
}
}
public boolean hasRegistration() {
return regs != null && !regs.isEmpty();
}
}