/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package javax.faces.component;
import java.util.Arrays;
import java.util.Iterator;
import javax.faces.context.FacesContext;
import javax.faces.model.SelectItem;
import javax.faces.model.SelectItemGroup;
/**
* @author Mathias Broekelmann (latest modification by $Author: grantsmith $)
* @version $Revision: 472555 $ $Date: 2006-11-08 18:30:58 +0100 (Mi, 08 Nov 2006) $
*/
class _SelectItemsUtil
{
public static interface _ValueConverter
{
Object getConvertedValue(FacesContext context, String value);
}
/**
* @param value the value to check
* @param selectItemsIter contains instances of SelectItem
* @return if the value of a selectitem is equal to the given value
*/
public static boolean matchValue(Object value,
Iterator selectItemsIter)
{
while (selectItemsIter.hasNext())
{
SelectItem item = (SelectItem) selectItemsIter.next();
if (item instanceof SelectItemGroup)
{
SelectItemGroup itemgroup = (SelectItemGroup) item;
SelectItem[] selectItems = itemgroup.getSelectItems();
if (selectItems != null
&& selectItems.length > 0
&& matchValue(value, Arrays.asList(
selectItems).iterator()))
{
return true;
}
}
else
{
Object itemValue = item.getValue();
if (value==itemValue || value.equals(itemValue))
{
return true;
}
}
}
return false;
}
}