public class UserVectorToCooccurrenceMapper extends
Mapper<VarLongWritable, VectorWritable, IntWritable, IntWritable> {
public void map(VarLongWritable userID, VectorWritable userVector,
Context context) throws IOException, InterruptedException {
Iterator<Vector.Element> it = userVector.get().iterateNonZero();
while (it.hasNext()) {
int index1 = it.next().index();
Iterator<Vector.Element> it2 = userVector.get().iterateNonZero();
while (it2.hasNext()) {
int index2 = it2.next().index();
context.write(new IntWritable(index1), new IntWritable(index2));
}
}
}
這里VectorWritable要怎么接收啊
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標籤：Spark