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