1 /*
2 * $Id: AttributeEvaluatorFactory.java 788032 2009-06-24 14:08:32Z apetrelli $
3 *
4 * Licensed to the Apache Software Foundation (ASF) under one
5 * or more contributor license agreements. See the NOTICE file
6 * distributed with this work for additional information
7 * regarding copyright ownership. The ASF licenses this file
8 * to you under the Apache License, Version 2.0 (the
9 * "License"); you may not use this file except in compliance
10 * with the License. You may obtain a copy of the License at
11 *
12 * http://www.apache.org/licenses/LICENSE-2.0
13 *
14 * Unless required by applicable law or agreed to in writing,
15 * software distributed under the License is distributed on an
16 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
17 * KIND, either express or implied. See the License for the
18 * specific language governing permissions and limitations
19 * under the License.
20 */
21
22 package org.apache.tiles.evaluator;
23
24 import org.apache.tiles.Attribute;
25
26 /**
27 * Creates an attribute evaluator using the language or an attribute.
28 *
29 * @version $Rev: 788032 $ $Date: 2009-06-25 00:08:32 +1000 (Thu, 25 Jun 2009) $
30 * @since 2.2.0
31 */
32 public interface AttributeEvaluatorFactory {
33
34 /**
35 * Creates and attribute evaluator using an attribute.
36 *
37 * @param attribute The attribute used to obtain the evaluator.
38 * @return The attribute evaluator. It must not be <code>null</code>.
39 * @since 2.2.0
40 */
41 AttributeEvaluator getAttributeEvaluator(Attribute attribute);
42
43 /**
44 * Creates and attribute evaluator for the given expression language.
45 *
46 * @param language The name of the expression language.
47 * @return The attribute evaluator. It must not be <code>null</code>.
48 * @since 2.2.0
49 */
50 AttributeEvaluator getAttributeEvaluator(String language);
51 }