01: /*
02: * Licensed to the Apache Software Foundation (ASF) under one
03: * or more contributor license agreements. See the NOTICE file
04: * distributed with this work for additional information
05: * regarding copyright ownership. The ASF licenses this file
06: * to you under the Apache License, Version 2.0 (the
07: * "License"); you may not use this file except in compliance
08: * with the License. You may obtain a copy of the License at
09: *
10: * http://www.apache.org/licenses/LICENSE-2.0
11: *
12: * Unless required by applicable law or agreed to in writing,
13: * software distributed under the License is distributed on an
14: * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
15: * KIND, either express or implied. See the License for the
16: * specific language governing permissions and limitations
17: * under the License.
18: */
19: package org.apache.openjpa.lib.meta;
20:
21: import java.io.IOException;
22:
23: /**
24: * Filters metadata resources. Typically used to constrain the results
25: * of a {@link MetaDataIterator}.
26: *
27: * @author Abe White
28: * @nojavadoc
29: */
30: public interface MetaDataFilter {
31:
32: /**
33: * Return whether the given resource passes the filter.
34: */
35: public boolean matches(Resource rsrc) throws IOException;
36:
37: /**
38: * Information about a metadata resource.
39: */
40: public static interface Resource {
41:
42: /**
43: * The name of the resource.
44: */
45: public String getName();
46:
47: /**
48: * Resource content.
49: */
50: public byte[] getContent() throws IOException;
51: }
52: }
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