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Java > Open Source Codes > org > apache > tools > ant > types > ResourceCollection


1 /*
2  * Licensed to the Apache Software Foundation (ASF) under one or more
3  * contributor license agreements. See the NOTICE file distributed with
4  * this work for additional information regarding copyright ownership.
5  * The ASF licenses this file to You under the Apache License, Version 2.0
6  * (the "License"); you may not use this file except in compliance with
7  * the License. You may obtain a copy of the License at
8  *
9  * 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  */
18 package org.apache.tools.ant.types;
19
20 import java.util.Iterator JavaDoc;
21
22 /**
23  * Interface describing a collection of Resources.
24  * @since Ant 1.7
25  */
26 public interface ResourceCollection {
27
28     /**
29      * Get an Iterator over the contents of this ResourceCollection, whose elements
30      * are <code>org.apache.tools.ant.types.Resource</code> instances.
31      * @return an Iterator of Resources.
32      */
33     Iterator JavaDoc iterator();
34
35     /**
36      * Learn the number of contained Resources.
37      * @return number of elements as int.
38      */
39     int size();
40
41     /**
42      * Indicate whether this ResourceCollection is composed entirely of
43      * Resources accessible via local filesystem conventions. If true,
44      * all Resources returned from this ResourceCollection should be
45      * instances of FileResource.
46      * @return whether this is a filesystem-only resource collection.
47      */
48     boolean isFilesystemOnly();
49
50 }
51
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