I
- Vertex idE
- Edge Valuepublic class ReverseEdgeDuplicator<I extends org.apache.hadoop.io.WritableComparable,E extends org.apache.hadoop.io.Writable> extends EdgeReader<I,E>
Constructor and Description |
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ReverseEdgeDuplicator(EdgeReader<I,E> baseReader)
Constructor
|
Modifier and Type | Method and Description |
---|---|
void |
close()
Close this
EdgeReader to future operations. |
EdgeReader<I,E> |
getBaseReader()
Get wrapped EdgeReader
|
Edge<I,E> |
getCurrentEdge()
Get the current edge.
|
I |
getCurrentSourceId()
Get the current edge source id.
|
float |
getProgress()
How much of the input has the
EdgeReader consumed i.e. |
void |
initialize(org.apache.hadoop.mapreduce.InputSplit inputSplit,
org.apache.hadoop.mapreduce.TaskAttemptContext context)
Use the input split and context to setup reading the edges.
|
boolean |
nextEdge()
Read the next edge.
|
aggregate, getAggregatedValue, getBroadcast, reduce, reduceMerge, setWorkerGlobalCommUsage
getConf, setConf
public ReverseEdgeDuplicator(EdgeReader<I,E> baseReader)
baseReader
- EdgeReader to wrappublic EdgeReader<I,E> getBaseReader()
public void initialize(org.apache.hadoop.mapreduce.InputSplit inputSplit, org.apache.hadoop.mapreduce.TaskAttemptContext context) throws IOException, InterruptedException
EdgeReader
initialize
in class EdgeReader<I extends org.apache.hadoop.io.WritableComparable,E extends org.apache.hadoop.io.Writable>
inputSplit
- Input split to be used for reading edges.context
- Context from the task.IOException
InterruptedException
public boolean nextEdge() throws IOException, InterruptedException
EdgeReader
nextEdge
in class EdgeReader<I extends org.apache.hadoop.io.WritableComparable,E extends org.apache.hadoop.io.Writable>
IOException
InterruptedException
public I getCurrentSourceId() throws IOException, InterruptedException
EdgeReader
getCurrentSourceId
in class EdgeReader<I extends org.apache.hadoop.io.WritableComparable,E extends org.apache.hadoop.io.Writable>
IOException
InterruptedException
public Edge<I,E> getCurrentEdge() throws IOException, InterruptedException
EdgeReader
getCurrentEdge
in class EdgeReader<I extends org.apache.hadoop.io.WritableComparable,E extends org.apache.hadoop.io.Writable>
IOException
InterruptedException
public void close() throws IOException
EdgeReader
EdgeReader
to future operations.close
in class EdgeReader<I extends org.apache.hadoop.io.WritableComparable,E extends org.apache.hadoop.io.Writable>
IOException
public float getProgress() throws IOException, InterruptedException
EdgeReader
EdgeReader
consumed i.e.
has been processed by?getProgress
in class EdgeReader<I extends org.apache.hadoop.io.WritableComparable,E extends org.apache.hadoop.io.Writable>
0.0
to 1.0
.IOException
InterruptedException
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