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org.apache.commons.jelly.tags.beanshell.BeanShellExpressionFactory	100%	100%

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.jelly.tags.beanshell;
17
18		import bsh.EvalError;
19
20		import org.apache.commons.jelly.JellyContext;
21		import org.apache.commons.jelly.JellyException;
22		import org.apache.commons.jelly.expression.Expression;
23		import org.apache.commons.jelly.expression.ExpressionFactory;
24
25		/** Represents a factory of <a href="http://www.beanshell.org">beanshell</a> expressions
26		*
27		* @author <a href="mailto:jstrachan@apache.org">James Strachan</a>
28		* @version $Revision: 155420 $
29		*/
30	6	public class BeanShellExpressionFactory implements ExpressionFactory {
31
32		/**
33		* A helper method to return the JellyInterpreter for the given JellyContext
34		*/
35		public static JellyInterpreter getInterpreter(JellyContext context) throws EvalError {
36
37		/**
38		* @todo when we can unify the BeanShell and Jelly variable scopes we can share a single
39		* BeanShell context for each JellyContext.
40		* For now lets create a new one each time, which is slower.
41		*/
42	6	JellyInterpreter interpreter = new JellyInterpreter();
43	6	interpreter.setJellyContext(context);
44	6	return interpreter;
45		/*
46		JellyInterpreter interpreter
47		= (JellyInterpreter) context.getVariable( "org.apache.commons.jelly.beanshell.JellyInterpreter" );
48		if ( interpreter == null ) {
49		interpreter = new JellyInterpreter();
50		interpreter.setJellyContext(context);
51		context.setVariable( "org.apache.commons.jelly.beanshell.JellyInterpreter", interpreter );
52		}
53		return interpreter;
54		*/
55		}
56
57
58		// ExpressionFactory interface
59		//-------------------------------------------------------------------------
60		public Expression createExpression(String text) throws JellyException {
61	18	return new BeanShellExpression(text);
62		}
63		}

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