View Javadoc

    1   /*
    2    * Copyright 2002,2004 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   *  represents an integer
    22   *
    23   *  @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
    24   *  @version $Id: ASTIntegerLiteral.java,v 1.4 2004/02/28 13:45:20 yoavs Exp $
    25   */
    26  public class ASTIntegerLiteral extends SimpleNode
    27  {
    28      Integer val;
    29
    30      public ASTIntegerLiteral(int id)
    31      {
    32          super(id);
    33      }
    34
    35      public ASTIntegerLiteral(Parser p, int id)
    36      {
    37          super(p, id);
    38      }
    39
    40
    41      /*** Accept the visitor. **/
    42      public Object jjtAccept(ParserVisitor visitor, Object data)
    43      {
    44          return visitor.visit(this, data);
    45      }
    46
    47      /***
    48       *  Part of reference resolution - wierd...  in JSTL EL you can
    49       *  have
    50       *          foo.2
    51       *  which is equiv to
    52       *          foo[2]
    53       *  it appears...
    54       */
    55      public Object execute(Object o, JexlContext ctx)
    56              throws Exception
    57      {
    58          return ASTArrayAccess.evaluateExpr(o, val);
    59      }
    60
    61      public Object value(JexlContext jc)
    62          throws Exception
    63      {
    64          return val;
    65      }
    66  }