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    /**
023     * Used by some of the {@link ognl.enhance.OgnlExpressionCompiler} logic to determine the object type of {@link Node}s
024     * during expression evaluation.
025     */
026    public interface NodeType
027    {
028        /**
029         * The type returned from the expression - if any.
030         * 
031         * @return The type.
032         */
033        Class<?> getGetterClass();
034    
035        /**
036         * The type used to set the value - if any.
037         * 
038         * @return The type.
039         */
040        Class<?> getSetterClass();
041    }