01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one or more
03: * contributor license agreements. See the NOTICE file distributed with
04: * this work for additional information regarding copyright ownership.
05: * The ASF licenses this file to You under the Apache License, Version 2.0
06: * (the "License"); you may not use this file except in compliance with
07: * the License. You may obtain a copy of the License at
08: *
09: * http://www.apache.org/licenses/LICENSE-2.0
10: *
11: * Unless required by applicable law or agreed to in writing, software
12: * distributed under the License is distributed on an "AS IS" BASIS,
13: * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14: * See the License for the specific language governing permissions and
15: * limitations under the License.
16: */
17: package org.apache.cocoon.components.expression;
18:
19: import java.util.Iterator;
20:
21: /**
22: * @version $Id: AbstractExpression.java 449189 2006-09-23 06:52:29Z crossley $
23: */
24: public abstract class AbstractExpression implements Expression {
25:
26: private String language;
27: private String expression;
28:
29: public AbstractExpression(String language, String expression) {
30: this .language = language;
31: this .expression = expression;
32: }
33:
34: public String getExpression() {
35: return this .expression;
36: }
37:
38: public String getLanguage() {
39: return this .language;
40: }
41:
42: public void setProperty(String property, Object value) {
43: // has no properties
44: }
45:
46: protected static final Iterator EMPTY_ITER = new Iterator() {
47: public boolean hasNext() {
48: return false;
49: }
50:
51: public Object next() {
52: return null;
53: }
54:
55: public void remove() {
56: // EMPTY
57: }
58: };
59:
60: }
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