Classes in this File | Line Coverage | Branch Coverage | Complexity | ||||
FunctionWithVertex |
|
| 1.0;1 |
1 | /* | |
2 | * Licensed to the Apache Software Foundation (ASF) under one | |
3 | * or more contributor license agreements. See the NOTICE file | |
4 | * distributed with this work for additional information | |
5 | * regarding copyright ownership. The ASF licenses this file | |
6 | * to you under the Apache License, Version 2.0 (the | |
7 | * "License"); you may not use this file except in compliance | |
8 | * with the License. You may obtain a copy of the License at | |
9 | * | |
10 | * http://www.apache.org/licenses/LICENSE-2.0 | |
11 | * | |
12 | * Unless required by applicable law or agreed to in writing, software | |
13 | * distributed under the License is distributed on an "AS IS" BASIS, | |
14 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | |
15 | * See the License for the specific language governing permissions and | |
16 | * limitations under the License. | |
17 | */ | |
18 | package org.apache.giraph.function.vertex; | |
19 | ||
20 | import java.io.Serializable; | |
21 | ||
22 | import org.apache.giraph.function.PairFunction; | |
23 | import org.apache.giraph.graph.Vertex; | |
24 | import org.apache.hadoop.io.Writable; | |
25 | import org.apache.hadoop.io.WritableComparable; | |
26 | ||
27 | /** | |
28 | * Function: | |
29 | * (vertex, F) -> T | |
30 | * | |
31 | * Determines an output value based on a vertex and an input value. | |
32 | * | |
33 | * @param <I> Vertex id type | |
34 | * @param <V> Vertex value type | |
35 | * @param <E> Edge value type | |
36 | * @param <F> Argument type | |
37 | * @param <T> Result type | |
38 | */ | |
39 | @SuppressWarnings("rawtypes") | |
40 | public interface FunctionWithVertex<I extends WritableComparable, | |
41 | V extends Writable, E extends Writable, F, T> | |
42 | extends PairFunction<Vertex<I, V, E>, F, T>, Serializable { | |
43 | /** | |
44 | * Returns the result of applying this function to given | |
45 | * {@code vertex} and {@code input}. | |
46 | * | |
47 | * The returned object may or may not be a new instance, | |
48 | * depending on the implementation. | |
49 | * | |
50 | * @param vertex Vertex | |
51 | * @param input Input | |
52 | * @return result | |
53 | */ | |
54 | @Override | |
55 | T apply(Vertex<I, V, E> vertex, F input); | |
56 | } |