ValueListitemAdapter.java

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/*
 * Turró i Cutiller Foundation. License notice.
 * Copyright (C) 2011 Lluis Turró Cutiller <http://www.turro.org/>
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License as published by
 * the Free Software Foundation, either version 3 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 Affero General Public License for more details.
 *
 * You should have received a copy of the GNU Affero General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
package org.turro.zkoss.input;
 
import java.util.Collection;
import java.util.HashSet;
import org.zkoss.zul.Listbox;
import org.zkoss.zul.Listitem;
 
public abstract class ValueListitemAdapter<V> extends HashSet<Listitem> {
 
  public ValueListitemAdapter(Listbox listbox, Collection collection) {
    super();
    if(listbox != null && collection != null) {
      for(Object item : listbox.getItems()) {
        for(Object obj : collection) {
          if(item instanceof Listitem) {
            if(equals((V) ((Listitem) item).getValue(), (V) obj)) {
              add((Listitem) item);
            }
          }
        }
      }
    }
  }
 
  protected abstract boolean equals(V value, V obj);
 
}