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BeanUtils provides an easy-to-use but flexible wrapper around reflection and introspection.

There is a newer version: 1.8.3-kuali-4

/*
 * 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.commons.beanutils.converters;

import java.util.Calendar;

/**
 * {@link DateTimeConverter} implementation that handles conversion to
 * and from java.util.Calendar objects.
 * 
 * This implementation can be configured to handle conversion either
 * by using a Locale's default format or by specifying a set of format
 * patterns (note, there is no default String conversion for Calendar).
 * See the {@link DateTimeConverter} documentation for further details.
 * 
 * Can be configured to either return a default value or throw a
 * ConversionException if a conversion error occurs.
 *
 * @version $Revision: 640131 $
 * @since 1.8.0
 */
public final class CalendarConverter extends DateTimeConverter {

    /**
     * Construct a java.util.Calendar Converter that throws
     * a ConversionException if an error occurs.
     */
    public CalendarConverter() {
        super();
    }

    /**
     * Construct a java.util.Calendar Converter that returns
     * a default value if an error occurs.
     *
     * @param defaultValue The default value to be returned
     * if the value to be converted is missing or an error
     * occurs converting the value.
     */
    public CalendarConverter(Object defaultValue) {
        super(defaultValue);
    }

    /**
     * Return the default type this Converter handles.
     *
     * @return The default type this Converter handles.
     */
    protected Class getDefaultType() {
        return Calendar.class;
    }

}