Coverage report

  %line %branch
org.apache.commons.jexl.parser.ASTIdentifier
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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  
 
 17  
 package org.apache.commons.jexl.parser;
 18  
 
 19  
 import org.apache.commons.jexl.JexlContext;
 20  
 
 21  
 /**
 22  
  * Simple identifier - $foo or $foo.bar (both parts are identifiers).
 23  
  * 
 24  
  * @author <a href="mailto:geirm@apache.org">Geir Magnusson Jr.</a>
 25  
  * @version $Id: ASTIdentifier.java 398199 2006-04-29 16:30:05Z dion $
 26  
  */
 27  
 public class ASTIdentifier extends SimpleNode {
 28  
     /** the name of the variable. */
 29  
     protected String val;
 30  
 
 31  
     /**
 32  
      * Create the node given an id.
 33  
      * 
 34  
      * @param id node id.
 35  
      */
 36  
     public ASTIdentifier(int id) {
 37  0
         super(id);
 38  0
     }
 39  
 
 40  
     /**
 41  
      * Create a node with the given parser and id.
 42  
      * 
 43  
      * @param p a parser.
 44  
      * @param id node id.
 45  
      */
 46  
     public ASTIdentifier(Parser p, int id) {
 47  437
         super(p, id);
 48  437
     }
 49  
 
 50  
     /** {@inheritDoc} */
 51  
     public Object jjtAccept(ParserVisitor visitor, Object data) {
 52  0
         return visitor.visit(this, data);
 53  
     }
 54  
 
 55  
     /** {@inheritDoc} */
 56  
     public Object value(JexlContext jc) throws Exception {
 57  448
         return jc.getVars().get(val);
 58  
     }
 59  
 
 60  
     /**
 61  
      * returns the value of itself applied to the object. We assume that an
 62  
      * identifier can be gotten via a get(String).
 63  
      * e.g. if we have bean.property, 'property' has been parsed as an identifier,
 64  
      * and we need to resolve the expression by calling the property getter.
 65  
      * 
 66  
      * @param obj the object to evaluate against.
 67  
      * @param jc the {@link JexlContext}.
 68  
      * @throws Exception on any error.
 69  
      * @return the resulting value.
 70  
      * @see ASTArrayAccess#evaluateExpr(Object, Object)
 71  
      */
 72  
     public Object execute(Object obj, JexlContext jc) throws Exception {
 73  38
         return ASTArrayAccess.evaluateExpr(obj, val);
 74  
     }
 75  
 
 76  
     /** 
 77  
      * Gets the name of the variable.
 78  
      * @return the variable name.
 79  
      */
 80  
     public String getIdentifierString() {
 81  204
         return val;
 82  
     }
 83  
 }

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