程序包 | 说明 |
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org.apache.hadoop.contrib.utils.join |
限定符和类型 | 方法和说明 |
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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.
|
限定符和类型 | 方法和说明 |
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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 © 2009 The Apache Software Foundation