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| 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 | } | 
| This report is generated by jcoverage, Maven and Maven JCoverage Plugin. |