Modifier and Type | Method and Description |
---|---|
TaggedMapOutput |
TaggedMapOutput.clone(org.apache.hadoop.mapred.JobConf job) |
protected abstract TaggedMapOutput |
DataJoinReducerBase.combine(Object[] tags,
Object[] values) |
protected abstract TaggedMapOutput |
DataJoinMapperBase.generateTaggedMapOutput(Object value)
Generate a tagged map output value.
|
Modifier and Type | Method and Description |
---|---|
protected void |
DataJoinReducerBase.collect(Object key,
TaggedMapOutput aRecord,
org.apache.hadoop.mapred.OutputCollector output,
org.apache.hadoop.mapred.Reporter reporter)
The subclass can overwrite this method to perform additional filtering
and/or other processing logic before a value is collected.
|
protected abstract org.apache.hadoop.io.Text |
DataJoinMapperBase.generateGroupKey(TaggedMapOutput aRecord)
Generate a map output key.
|
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