//--------------------------------------------------------------------------
// Copyright (c) 1998-2004, Drew Davidson and Luke Blanshard
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// Redistributions of source code must retain the above copyright notice,
// this list of conditions and the following disclaimer.
// Redistributions in binary form must reproduce the above copyright
// notice, this list of conditions and the following disclaimer in the
// documentation and/or other materials provided with the distribution.
// Neither the name of the Drew Davidson nor the names of its contributors
// may be used to endorse or promote products derived from this software
// without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
// FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
// COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
// INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
// BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
// OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
// AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
// DAMAGE.
//--------------------------------------------------------------------------
package com.opensymphony.xwork2.conversion;
import java.lang.reflect.Member;
import java.util.Map;
/**
* Interface for accessing the type conversion facilities within a context.
*
* This interface was copied from OGNL's TypeConverter
*
* @author Luke Blanshard ([email protected])
* @author Drew Davidson ([email protected])
*/
public interface TypeConverter
{
/**
* Converts the given value to a given type. The OGNL context, target, member and
* name of property being set are given. This method should be able to handle
* conversion in general without any context, target, member or property name specified.
* @param context context under which the conversion is being done
* @param target target object in which the property is being set
* @param member member (Constructor, Method or Field) being set
* @param propertyName property name being set
* @param value value to be converted
* @param toType type to which value is converted
* @return Converted value of type toType or TypeConverter.NoConversionPossible to indicate that the
conversion was not possible.
*/
public Object convertValue(Map<String, Object> context, Object target, Member member, String propertyName, Object value, Class toType);
public static final Object NO_CONVERSION_POSSIBLE = "ognl.NoConversionPossible";
public static final String TYPE_CONVERTER_CONTEXT_KEY = "_typeConverter";
}
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