/*
* 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 org.apache.commons.beanutils.Converter;
/**
* Provides a facade for {@link Converter} implementations
* preventing access to any public API in the implementation,
* other than that specified by {@link Converter}.
* <p />
* This implementation can be used to prevent registered {@link Converter}
* implementations that provide configuration options from being
* retrieved and modified.
*
* @version $Revision: 552084 $ $Date: 2007-06-30 04:04:13 +0100 (Sat, 30 Jun 2007) $
* @since 1.8.0
*/
public final class ConverterFacade implements Converter {
private final Converter converter;
/**
* Construct a converter which delegates to the specified
* {@link Converter} implementation.
*
* @param converter The converter to delegate to
*/
public ConverterFacade(Converter converter) {
if (converter == null) {
throw new IllegalArgumentException("Converter is missing");
}
this.converter = converter;
}
/**
* Convert the input object into an output object of the
* specified type by delegating to the underlying {@link Converter}
* implementation.
*
* @param type Data type to which this value should be converted
* @param value The input value to be converted
* @return The converted value.
*/
public Object convert(Class type, Object value) {
return converter.convert(type, value);
}
/**
* Provide a String representation of this facade implementation
* sand the underlying {@link Converter} it delegates to.
*
* @return A String representation of this facade implementation
* sand the underlying {@link Converter} it delegates to
*/
public String toString() {
return "ConverterFacade[" + converter.toString() + "]";
}
}
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