001 /*
002 * Licensed to the Apache Software Foundation (ASF) under one or more
003 * contributor license agreements. See the NOTICE file distributed with
004 * this work for additional information regarding copyright ownership.
005 * The ASF licenses this file to You under the Apache License, Version 2.0
006 * (the "License"); you may not use this file except in compliance with
007 * the License. You may obtain a copy of the License at
008 *
009 * http://www.apache.org/licenses/LICENSE-2.0
010 *
011 * Unless required by applicable law or agreed to in writing, software
012 * distributed under the License is distributed on an "AS IS" BASIS,
013 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
014 * See the License for the specific language governing permissions and
015 * limitations under the License.
016 */
017 package org.apache.commons.scxml.env.jexl;
018
019 import java.util.Map;
020
021 import org.apache.commons.scxml.Builtin;
022 import org.apache.commons.scxml.Context;
023 import org.apache.commons.scxml.env.SimpleContext;
024
025 /**
026 * JEXL Context implementation for Commons SCXML.
027 *
028 */
029 public class JexlContext extends SimpleContext
030 implements org.apache.commons.jexl.JexlContext {
031
032 /** Serial version UID. */
033 private static final long serialVersionUID = 1L;
034
035 /**
036 * Constructor.
037 */
038 public JexlContext() {
039 super();
040 getVars().put("_builtin", new Builtin());
041 }
042
043 /**
044 * Constructor with initial vars.
045 *
046 * @param initialVars The initial set of variables.
047 */
048 public JexlContext(final Map initialVars) {
049 super(initialVars);
050 getVars().put("_builtin", new Builtin());
051 }
052
053 /**
054 * Constructor with parent context.
055 *
056 * @param parent The parent context.
057 */
058 public JexlContext(final Context parent) {
059 super(parent);
060 getVars().put("_builtin", new Builtin());
061 }
062
063 /**
064 * Set the variables map.
065 *
066 * @param vars The new variables map.
067 *
068 * @see org.apache.commons.jexl.JexlContext#setVars(Map)
069 * @see org.apache.commons.scxml.env.SimpleContext#setVars(Map)
070 */
071 public void setVars(final Map vars) {
072 super.setVars(vars);
073 getVars().put("_builtin", new Builtin());
074 }
075
076 /**
077 * Get the variables map.
078 *
079 * @return Map The variables map.
080 *
081 * @see org.apache.commons.jexl.JexlContext#getVars()
082 * @see org.apache.commons.scxml.env.SimpleContext#getVars()
083 */
084 public Map getVars() {
085 return super.getVars();
086 }
087
088 /**
089 * Clear this Context.
090 *
091 * @see org.apache.commons.scxml.Context#reset()
092 */
093 public void reset() {
094 super.reset();
095 getVars().put("_builtin", new Builtin());
096 }
097
098 }
099