01: /*
02: * Copyright 2004-2006 the original author or authors.
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:
17: package org.compass.core.spi;
18:
19: import org.compass.core.Resource;
20:
21: /**
22: * A multiple resource implementation. Exposes {@link Resource} operations as well, which
23: * are performed against the current {@link Resource}.
24: *
25: * @author kimchy
26: */
27: public interface MultiResource extends InternalResource {
28:
29: /**
30: * Returns the number of {@link Resource}s.
31: */
32: int size();
33:
34: /**
35: * Adds another {@link Resource}, and moves the current resource to the newly created one.
36: */
37: void addResource();
38:
39: /**
40: * Returns the curren {@link Resource}.
41: */
42: Resource currentResource();
43:
44: /**
45: * Returns the {@link Resource} at the given postion.
46: */
47: Resource resource(int i);
48:
49: /**
50: * Clears all the saves resources.
51: */
52: void clear();
53: }
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