Class | Description |
---|---|
JoinGroupGroupComparator |
A
WritableComparator implementation that compare instances of JoinGroupKeyComparator only by their partition ids so records from different data sets but mapped to the same partition can be assigned to the same reduce group. |
JoinGroupKeyComparator |
A
WritableComparator implementation that compares instances of JoinGroupKeyComparator by both, partition id and data set length. |
JoinGroupWritable |
Contains the source data set and assigned partition information for a record .
|
Enum | Description |
---|---|
JoinCounters |
Defines counters used by mapreduce spatial-join components.
|
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