booleanconverter.java

Wicket一个开发Java Web应用程序框架。它使得开发web应用程序变得容易而轻松。 Wicket利用一个POJO data beans组件使得它可以与任何持久层技术相结合。

/*
 * 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 org.apache.wicket.util.convert.converters;

import java.util.Locale;

import org.apache.wicket.util.convert.IConverter;
import org.apache.wicket.util.string.StringValueConversionException;
import org.apache.wicket.util.string.Strings;


/**
 * Converts from Object to Boolean.
 * 
 * @author Eelco Hillenius
 * @author Jonathan Locke
 */
public final class BooleanConverter extends AbstractConverter
{
	private static final long serialVersionUID = 1L;

	/**
	 * The singleton instance for a boolean converter
	 */
	public static final IConverter INSTANCE = new BooleanConverter();

	/**
	 * @see org.apache.wicket.util.convert.IConverter#convertToObject(java.lang.String,Locale)
	 */
	public Object convertToObject(final String value, Locale locale)
	{
		try
		{
			return Strings.toBoolean(value);
		}
		catch (StringValueConversionException e)
		{
			throw newConversionException("Cannot convert '" + value + "' to Boolean", value, locale);
		}
	}

	/**
	 * @see org.apache.wicket.util.convert.converters.AbstractConverter#getTargetType()
	 */
	protected Class getTargetType()
	{
		return Boolean.class;
	}

}