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    1   /*
    2    * Copyright 2002-2006 The Apache Software Foundation.
    3    *
    4    * Licensed under the Apache License, Version 2.0 (the "License");
    5    * you may not use this file except in compliance with the License.
    6    * You may obtain a copy of the License at
    7    *
    8    *      http://www.apache.org/licenses/LICENSE-2.0
    9    *
    10   * Unless required by applicable law or agreed to in writing, software
    11   * distributed under the License is distributed on an "AS IS" BASIS,
    12   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    13   * See the License for the specific language governing permissions and
    14   * limitations under the License.
    15   */
    16  package org.apache.commons.jexl.parser;
    17
    18  import org.apache.commons.jexl.JexlContext;
    19
    20  /***
    21   * AST node for expression.
    22   *
    23   * @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
    24   * @version $Id: ASTExpression.java 398190 2006-04-29 16:04:10Z dion $
    25   */
    26  public class ASTExpression extends SimpleNode {
    27      /***
    28       * Create the node given an id.
    29       *
    30       * @param id node id.
    31       */
    32      public ASTExpression(int id) {
    33          super(id);
    34      }
    35
    36      /***
    37       * Create a node with the given parser and id.
    38       *
    39       * @param p a parser.
    40       * @param id node id.
    41       */
    42      public ASTExpression(Parser p, int id) {
    43          super(p, id);
    44      }
    45
    46      /*** {@inheritDoc} */
    47      public Object jjtAccept(ParserVisitor visitor, Object data) {
    48          return visitor.visit(this, data);
    49      }
    50
    51      /*** {@inheritDoc} */
    52      public Object value(JexlContext context) throws Exception {
    53          return ((SimpleNode) jjtGetChild(0)).value(context);
    54      }
    55
    56  }