I
- Vertex index valueV
- Vertex valueE
- Edge valueM
- Message valuepublic class IdentityComputation<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable,M extends org.apache.hadoop.io.Writable> extends BasicComputation<I,V,E,M>
Constructor and Description |
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IdentityComputation() |
Modifier and Type | Method and Description |
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void |
compute(Vertex<I,V,E> vertex,
Iterable<M> messages)
Must be defined by user to do computation on a single Vertex.
|
addEdgeRequest, addVertexRequest, addVertexRequest, getContext, getMyWorkerIndex, getSuperstep, getTotalNumEdges, getTotalNumVertices, getWorkerContext, getWorkerCount, getWorkerForVertex, initialize, postSuperstep, preSuperstep, removeEdgesRequest, removeVertexRequest, sendMessage, sendMessageToAllEdges, sendMessageToMultipleEdges
aggregate, getAggregatedValue, getBroadcast, reduce, reduceMerge, setWorkerGlobalCommUsage
getConf, setConf
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
getConf
setConf
getBroadcast
reduce, reduceMerge
aggregate
getAggregatedValue
public void compute(Vertex<I,V,E> vertex, Iterable<M> messages) throws IOException
AbstractComputation
compute
in interface Computation<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable,M extends org.apache.hadoop.io.Writable,M extends org.apache.hadoop.io.Writable>
compute
in class AbstractComputation<I extends org.apache.hadoop.io.WritableComparable,V extends org.apache.hadoop.io.Writable,E extends org.apache.hadoop.io.Writable,M extends org.apache.hadoop.io.Writable,M extends org.apache.hadoop.io.Writable>
vertex
- Vertexmessages
- Messages that were sent to this vertex in the previous
superstep. Each message is only guaranteed to have
a life expectancy as long as next() is not called.IOException
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