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/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */
package org.apache.ibatis.ognl;

public class ASTKeyValue extends SimpleNode {

    private static final long serialVersionUID = -2039156077201845415L;

    public ASTKeyValue(int id) {
        super(id);
    }

    public ASTKeyValue(OgnlParser p, int id) {
        super(p, id);
    }

    protected Node getKey() {
        return children[0];
    }

    protected Node getValue() {
        return (jjtGetNumChildren() > 1) ? children[1] : null;
    }

    /**
     * Returns null because this is a parser construct and does not evaluate
     */
    protected Object getValueBody(OgnlContext context, Object source) throws OgnlException {
        return null;
    }

    public String toString() {
        return getKey() + " -> " + getValue();
    }
}