This project has retired. For details please refer to its Attic page.
EdgeInputFilter xref
View Javadoc

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.io.filters;
19  
20  import org.apache.giraph.edge.Edge;
21  import org.apache.hadoop.io.Writable;
22  import org.apache.hadoop.io.WritableComparable;
23  
24  /**
25   * Filters edges on input.
26   *
27   * @param <I> Vertex ID
28   * @param <E> Edge Value
29   */
30  public interface EdgeInputFilter<I extends WritableComparable,
31      E extends Writable> {
32    /**
33     * Whether to drop this edge
34     *
35     * @param sourceId ID of source of edge
36     * @param edge to check
37     * @return true if we should drop the edge
38     */
39    boolean dropEdge(I sourceId, Edge<I, E> edge);
40  }
41