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/*******************************************************************************
* Copyright (c) 2010 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.papyrus.xwt.converters;
import org.eclipse.core.databinding.conversion.IConverter;
import org.eclipse.papyrus.xwt.IValueConverter;
import org.eclipse.papyrus.xwt.XWT;
/**
* The operation to inverse the converter direction.
*
* @author yyang
*
*/
public class ValueConverterAdapter implements IValueConverter {
private IConverter fromConvertor;
private IConverter toConvertor;
public ValueConverterAdapter(IConverter fromConvertor, IConverter toConvertor) {
this.fromConvertor = fromConvertor;
this.toConvertor = toConvertor;
}
public Object convertBack(Object value) {
return toConvertor.convert(value);
}
public Object convert(Object fromObject) {
return fromConvertor.convert(fromObject);
}
public Object getFromType() {
return fromConvertor.getFromType();
}
public Object getToType() {
return toConvertor.getFromType();
}
public static ValueConverterAdapter create(Class<?> sourceType, Class<?> targetType) {
IConverter fromConvertor = XWT.findConvertor(sourceType, targetType);
if (fromConvertor == null) {
return null;
}
IConverter toConvertor = XWT.findConvertor(targetType, sourceType);
if (toConvertor == null) {
return null;
}
return new ValueConverterAdapter(fromConvertor, toConvertor);
}
}
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