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[FLINK-1523] [gelly] Added VertexWithDegrees as a subclass of Vertex
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flink-staging/flink-gelly/src/main/java/org/apache/flink/graph/VertexWithDegrees.java
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| /* | ||
| * Licensed to the Apache Software Foundation (ASF) under one | ||
| * or more contributor license agreements. See the NOTICE file | ||
| * distributed with this work for additional information | ||
| * regarding copyright ownership. The ASF licenses this file | ||
| * to you under the Apache License, Version 2.0 (the | ||
| * "License"); you may not use this file except in compliance | ||
| * with the License. You may obtain a copy of the License at | ||
| * | ||
| * http://www.apache.org/licenses/LICENSE-2.0 | ||
| * | ||
| * Unless required by applicable law or agreed to in writing, software | ||
| * distributed under the License is distributed on an "AS IS" BASIS, | ||
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. | ||
| * See the License for the specific language governing permissions and | ||
| * limitations under the License. | ||
| */ | ||
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| package org.apache.flink.graph; | ||
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| import java.io.Serializable; | ||
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| /** | ||
| * Represents the graph's nodes. It carries an ID and a value as well as the vertex inDegree and outDegree. | ||
| * For vertices with no value, use {@link org.apache.flink.types.NullValue} as the value type. | ||
| * | ||
| * @param <K> | ||
| * @param <V> | ||
| */ | ||
| public class VertexWithDegrees<K extends Comparable<K> & Serializable, V extends Serializable> | ||
| extends Vertex<K, V> { | ||
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| private long inDegree; | ||
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| private long outDegree; | ||
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| public VertexWithDegrees() { | ||
| super(); | ||
| inDegree = -1l; | ||
| outDegree = -1l; | ||
| } | ||
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| public VertexWithDegrees(K k, V v) { | ||
| super(k,v); | ||
| inDegree = 0l; | ||
| outDegree = 0l; | ||
| } | ||
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| public Long getInDegree() throws Exception{ | ||
| if(inDegree == -1) { | ||
| throw new InaccessibleMethodException("The degree option was not set. To access the degrees, " + | ||
| "call iterationConfiguration.setOptDegrees(true)."); | ||
| } | ||
| return inDegree; | ||
| } | ||
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| public void setInDegree(Long inDegree) { | ||
| this.inDegree = inDegree; | ||
| } | ||
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| public Long getOutDegree() throws Exception{ | ||
| if(outDegree == -1) { | ||
| throw new InaccessibleMethodException("The degree option was not set. To access the degrees, " + | ||
| "call iterationConfiguration.setOptDegrees(true)."); | ||
| } | ||
| return outDegree; | ||
| } | ||
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| public void setOutDegree(Long outDegree) { | ||
| this.outDegree = outDegree; | ||
| } | ||
| } |
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