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| BeanContextListModel.java | 0% | 0% | 0% | 0% |
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/*
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* EJTools, the Enterprise Java Tools
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*
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* Distributable under LGPL license.
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* See terms of license at www.gnu.org.
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*/
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package org.ejtools.adwt;
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import java.beans.beancontext.BeanContext;
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import java.beans.beancontext.BeanContextMembershipEvent;
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import java.beans.beancontext.BeanContextMembershipListener;
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import java.util.Collection;
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import java.util.Iterator;
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import java.util.Vector;
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import javax.swing.ListModel;
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import javax.swing.event.ListDataEvent;
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import javax.swing.event.ListDataListener;
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/**
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* Description of the Class
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*
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* @author Laurent Etiemble
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* @version $Revision: 1.2 $
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*/
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public class BeanContextListModel implements ListModel, BeanContextMembershipListener |
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{
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/** Description of the Field */
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protected Collection listeners = new Vector(); |
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/** Description of the Field */
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protected BeanContext root;
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/**
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* Constructor for the BeanContextListModel object
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*
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* @param root Description of the Parameter
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*/
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public BeanContextListModel(BeanContext root)
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{
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this.root = root;
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this.root.addBeanContextMembershipListener(this); |
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} |
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/**
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* Adds a feature to the ListDataListener attribute of the
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* BeanContextListModel object
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*
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* @param l The feature to be added to the ListDataListener attribute
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*/
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public void addListDataListener(ListDataListener l) |
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{
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this.listeners.add(l);
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} |
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/**
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* Description of the Method
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*
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* @param bcme Description of the Parameter
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*/
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public void childrenAdded(BeanContextMembershipEvent bcme) |
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{
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this.fireContentsChanged();
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} |
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/**
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* Description of the Method
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*
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* @param bcme Description of the Parameter
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*/
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public void childrenRemoved(BeanContextMembershipEvent bcme) |
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{
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this.fireContentsChanged();
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} |
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/**
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* Gets the elementAt attribute of the BeanContextListModel object
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*
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* @param index Description of the Parameter
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* @return The elementAt value
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*/
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public Object getElementAt(int index) |
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{
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int i = 0;
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Object result = null;
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for (Iterator it = this.root.iterator(); it.hasNext(); i++) |
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{
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result = it.next(); |
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if (i == index)
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{
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break;
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} |
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result = null;
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} |
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return result;
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} |
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/**
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* Gets the size attribute of the BeanContextListModel object
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*
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* @return The size value
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*/
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public int getSize() |
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{
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return root.size();
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} |
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/**
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* Description of the Method
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*
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* @param l Description of the Parameter
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*/
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public void removeListDataListener(ListDataListener l) |
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{
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this.listeners.remove(l);
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} |
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/** Description of the Method */
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protected void fireContentsChanged() |
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{
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ListDataEvent event = new ListDataEvent(this, ListDataEvent.CONTENTS_CHANGED, 0, this.root.size()); |
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Object[] copy = this.listeners.toArray();
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for (int i = 0; i < copy.length; i++) |
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{
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ListDataListener listener = (ListDataListener) copy[i]; |
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listener.contentsChanged(event); |
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} |
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} |
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/** Description of the Method */
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protected void fireIntervalAdded() { } |
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/** Description of the Method */
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protected void fireIntervalRemoved() { } |
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} |
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