001    package org.apache.commons.ognl;
002    
003    /*
004     * Licensed to the Apache Software Foundation (ASF) under one
005     * or more contributor license agreements.  See the NOTICE file
006     * distributed with this work for additional information
007     * regarding copyright ownership.  The ASF licenses this file
008     * to you under the Apache License, Version 2.0 (the
009     * "License"); you may not use this file except in compliance
010     * with the License.  You may obtain a copy of the License at
011     *
012     * http://www.apache.org/licenses/LICENSE-2.0
013     *
014     * Unless required by applicable law or agreed to in writing,
015     * software distributed under the License is distributed on an
016     * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
017     * KIND, either express or implied.  See the License for the
018     * specific language governing permissions and limitations
019     * under the License.
020     */
021    
022    import org.apache.commons.ognl.enhance.UnsupportedCompilationException;
023    
024    /**
025     * $Id: ASTThisVarRef.java 1184964 2011-10-17 00:26:34Z mcucchiara $
026     * @author Luke Blanshard (blanshlu@netscape.net)
027     * @author Drew Davidson (drew@ognl.org)
028     */
029    public class ASTThisVarRef
030        extends ASTVarRef
031    {
032    
033        public ASTThisVarRef( int id )
034        {
035            super( id );
036        }
037    
038        public ASTThisVarRef( OgnlParser p, int id )
039        {
040            super( p, id );
041        }
042    
043        protected Object getValueBody( OgnlContext context, Object source )
044            throws OgnlException
045        {
046            return context.getCurrentObject();
047        }
048    
049        protected void setValueBody( OgnlContext context, Object target, Object value )
050            throws OgnlException
051        {
052            context.setCurrentObject( value );
053        }
054    
055        public String toGetSourceString( OgnlContext context, Object target )
056        {
057            throw new UnsupportedCompilationException( "Unable to compile this references." );
058        }
059    
060        public String toSetSourceString( OgnlContext context, Object target )
061        {
062            throw new UnsupportedCompilationException( "Unable to compile this references." );
063        }
064        
065        public <R, P> R accept( NodeVisitor<? extends R, ? super P> visitor, P data )
066            throws OgnlException
067        {
068            return visitor.visit( this, data );
069        }
070    }