blob: ae22f174132495966c315aa6b3f7243940da50fe (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
|
/**
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership.
* The ASF licenses this file to You under the Apache License, Version 2.0
* (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.apache.qpid.server.filter;
import org.apache.qpid.AMQException;
import org.apache.qpid.server.queue.Filterable;
//
// Based on like named file from r450141 of the Apache ActiveMQ project <http://www.activemq.org/site/home.html>
//
/**
* Used to evaluate an XQuery Expression in a JMS selector.
*/
public final class XQueryExpression implements BooleanExpression {
private final String xpath;
XQueryExpression(String xpath) {
super();
this.xpath = xpath;
}
public Object evaluate(Filterable message) {
return Boolean.FALSE;
}
public String toString() {
return "XQUERY "+ConstantExpression.encodeString(xpath);
}
/**
* @param message
* @return true if the expression evaluates to Boolean.TRUE.
* @throws AMQException
*/
public boolean matches(Filterable message)
{
Object object = evaluate(message);
return object!=null && object==Boolean.TRUE;
}
}
|
