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VertexEdgeCount.java
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VertexEdgeCount.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.
*/
package org.apache.giraph.graph;
/**
* Simple immutable structure for storing a final vertex and edge count.
*/
public class VertexEdgeCount {
/** Immutable vertices */
private final long vertexCount;
/** Immutable edges */
private final long edgeCount;
/**
* Default constructor.
*/
public VertexEdgeCount() {
vertexCount = 0;
edgeCount = 0;
}
/**
* Constructor with initial values.
*
* @param vertexCount Final number of vertices.
* @param edgeCount Final number of edges.
*/
public VertexEdgeCount(long vertexCount, long edgeCount) {
this.vertexCount = vertexCount;
this.edgeCount = edgeCount;
}
public long getVertexCount() {
return vertexCount;
}
public long getEdgeCount() {
return edgeCount;
}
/**
* Increment the both the vertex edge count with a {@link VertexEdgeCount}.
*
* @param vertexEdgeCount add both the vertices and edges of this object.
* @return New immutable object with the new vertex and edge counts.
*/
public VertexEdgeCount incrVertexEdgeCount(
VertexEdgeCount vertexEdgeCount) {
return new VertexEdgeCount(
vertexCount + vertexEdgeCount.getVertexCount(),
edgeCount + vertexEdgeCount.getEdgeCount());
}
/**
* Increment the both the vertex edge count with primitives.
*
* @param vertexCount Add this many vertices.
* @param edgeCount Add this many edges.
* @return New immutable object with the new vertex and edge counts.
*/
public VertexEdgeCount incrVertexEdgeCount(
long vertexCount, long edgeCount) {
return new VertexEdgeCount(
this.vertexCount + vertexCount,
this.edgeCount + edgeCount);
}
@Override
public String toString() {
return "(v=" + getVertexCount() + ", e=" + getEdgeCount() + ")";
}
}