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feilong is a suite of core and expanded libraries that include utility classes, http, excel,cvs, io classes, and much much more.
//--------------------------------------------------------------------------
// 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.feilong.lib.ognl;
import java.util.Enumeration;
import java.util.Map;
/**
* Implementation of PropertyAccessor that provides "property" reference to
* "nextElement" (aliases to "next" also) and "hasMoreElements" (also aliased
* to "hasNext").
*
* @author Luke Blanshard ([email protected])
* @author Drew Davidson ([email protected])
*/
public class EnumerationPropertyAccessor extends ObjectPropertyAccessor implements PropertyAccessor // This is here to make javadoc show this class as an implementor
{
@Override
public Object getProperty(Map context,Object target,Object name) throws OgnlException{
Object result;
Enumeration e = (Enumeration) target;
if (name instanceof String){
if (name.equals("next") || name.equals("nextElement")){
result = e.nextElement();
}else{
if (name.equals("hasNext") || name.equals("hasMoreElements")){
result = e.hasMoreElements() ? Boolean.TRUE : Boolean.FALSE;
}else{
result = super.getProperty(context, target, name);
}
}
}else{
result = super.getProperty(context, target, name);
}
return result;
}
@Override
public void setProperty(Map context,Object target,Object name,Object value) throws OgnlException{
throw new IllegalArgumentException("can't set property " + name + " on Enumeration");
}
}