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 package org.apache.commons.discovery;
18
19 /**
20 * Iterator over discovered SPI type.
21 *
22 * @param <T> The SPI type
23 */
24 public abstract class ResourceClassIterator<T> extends ResourceIterator {
25
26 /**
27 * Returns the next SPI Class in the iteration.
28 *
29 * @param <S> Any type extends T
30 * @return The next SPI Class in the iteration
31 */
32 public abstract <S extends T> ResourceClass<S> nextResourceClass();
33
34 /**
35 * {@inheritDoc}
36 */
37 @Override
38 public Resource nextResource() {
39 return nextResourceClass();
40 }
41
42 /**
43 * {@inheritDoc}
44 */
45 @Override
46 public String nextResourceName() {
47 return nextResourceClass().getName();
48 }
49
50 }