Package | Description |
---|---|
org.apache.hadoop.contrib.utils.join |
Modifier and Type | Method and Description |
---|---|
TaggedMapOutput |
TaggedMapOutput.clone(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,
OutputCollector output,
Reporter reporter)
The subclass can overwrite this method to perform additional filtering
and/or other processing logic before a value is collected.
|
protected abstract Text |
DataJoinMapperBase.generateGroupKey(TaggedMapOutput aRecord)
Generate a map output key.
|
Copyright © 2013 Apache Software Foundation. All rights reserved.