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'databene commons' is an open source Java library by Volker Bergmann.
It provides extensions to the Java core library by utility classes, abstract concepts
and concrete implementations.
/*
* Copyright (C) 2004-2015 Volker Bergmann ([email protected]).
* All rights reserved.
*
* Licensed 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.databene.commons.converter;
import org.databene.commons.ConversionException;
import org.databene.commons.Converter;
/**
* {@link Converter} implementation that converts a null value to an empty {@link String}.
* Created: 08.03.2011 14:59:34
* @since 0.5.8
* @author Volker Bergmann
*/
public class NullToEmptyStringConverter extends ThreadSafeConverter {
protected NullToEmptyStringConverter() {
super(String.class, String.class);
}
@Override
public String convert(String sourceValue) throws ConversionException {
return (sourceValue == null ? "" : sourceValue);
}
}