1 /*
2 * Copyright (C) 2012 Alberto Irurueta Carro (alberto@irurueta.com)
3 *
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at
7 *
8 * http://www.apache.org/licenses/LICENSE-2.0
9 *
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 com.irurueta.geometry.io;
17
18 import java.io.IOException;
19
20 /**
21 * Defines the interface to iterate on the loading process of a file.
22 */
23 public interface LoaderIterator {
24
25 /**
26 * Returns boolean indicating if there is more data to be read.
27 *
28 * @return True if there are more chunks to be read, false otherwise.
29 */
30 boolean hasNext();
31
32 /**
33 * Reads next chunk of data on the file.
34 *
35 * @return Chunk of data containing vertices, indices, colors, textures,
36 * etc.
37 * @throws NotAvailableException Raised if no more chunks are available.
38 * @throws LoaderException Raised if file cannot be read because it is
39 * either corrupted or cannot be interpreted.
40 * @throws IOException if an I/O error occurs.
41 */
42 DataChunk next() throws NotAvailableException, LoaderException, IOException;
43 }