01: /*
02: * Copyright 2003-2004 The Apache Software Foundation
03: *
04: * Licensed under the Apache License, Version 2.0 (the "License");
05: * you may not use this file except in compliance with the License.
06: * You may obtain a copy of the License at
07: *
08: * http://www.apache.org/licenses/LICENSE-2.0
09: *
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.jxpath;
17:
18: import java.util.List;
19:
20: /**
21: * NodeSet interface can be used as the type of an argument of an extension
22: * function. Alternatively, the function can declare the argument as
23: * a Collection (or List or Set), in which case it will be given a collection
24: * of <i>values</i> matching the path.
25: *
26: * @author <a href="mailto:dmitri@apache.org">Dmitri Plotnikov</a>
27: * @version $Id: NodeSet.java,v 1.3 2004/02/29 14:17:42 scolebourne Exp $
28: */
29: public interface NodeSet {
30:
31: /**
32: * Returns a list of nodes.
33: */
34: List getNodes();
35:
36: /**
37: * Returns a list of pointers for all nodes in the set.
38: */
39: List getPointers();
40:
41: /**
42: * Returns a list of values of all contained pointers.
43: */
44: List getValues();
45:
46: }
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