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Packages that use TupleWritable | |
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org.apache.hadoop.mapred.join | Given a set of sorted datasets keyed with the same class and yielding equal partitions, it is possible to effect a join of those datasets prior to the map. |
org.apache.hadoop.mapreduce.lib.join | Given a set of sorted datasets keyed with the same class and yielding equal partitions, it is possible to effect a join of those datasets prior to the map. |
Uses of TupleWritable in org.apache.hadoop.mapred.join |
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Subclasses of TupleWritable in org.apache.hadoop.mapred.join | |
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class |
TupleWritable
Writable type storing multiple Writable s. |
Uses of TupleWritable in org.apache.hadoop.mapreduce.lib.join |
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Methods in org.apache.hadoop.mapreduce.lib.join that return TupleWritable | |
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protected TupleWritable |
CompositeRecordReader.createTupleWritable()
Create a value to be used internally for joins. |
TupleWritable |
JoinRecordReader.createValue()
|
Methods in org.apache.hadoop.mapreduce.lib.join that return types with arguments of type TupleWritable | |
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RecordReader<K,TupleWritable> |
CompositeInputFormat.createRecordReader(InputSplit split,
TaskAttemptContext taskContext)
Construct a CompositeRecordReader for the children of this InputFormat as defined in the init expression. |
protected ResetableIterator<TupleWritable> |
JoinRecordReader.getDelegate()
Return an iterator wrapping the JoinCollector. |
Methods in org.apache.hadoop.mapreduce.lib.join with parameters of type TupleWritable | |
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void |
JoinRecordReader.JoinDelegationIterator.add(TupleWritable item)
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protected boolean |
InnerJoinRecordReader.combine(Object[] srcs,
TupleWritable dst)
Return true iff the tuple is full (all data sources contain this key). |
protected boolean |
MultiFilterRecordReader.combine(Object[] srcs,
TupleWritable dst)
Default implementation offers MultiFilterRecordReader.emit(org.apache.hadoop.mapreduce.lib.join.TupleWritable) every Tuple from the
collector (the outer join of child RRs). |
protected boolean |
OuterJoinRecordReader.combine(Object[] srcs,
TupleWritable dst)
Emit everything from the collector. |
protected abstract boolean |
CompositeRecordReader.combine(Object[] srcs,
TupleWritable value)
|
protected V |
OverrideRecordReader.emit(TupleWritable dst)
Emit the value with the highest position in the tuple. |
protected abstract V |
MultiFilterRecordReader.emit(TupleWritable dst)
For each tuple emitted, return a value (typically one of the values in the tuple). |
boolean |
CompositeRecordReader.JoinCollector.flush(TupleWritable value)
Write the next value into key, value as accepted by the operation associated with this set of RecordReaders. |
boolean |
JoinRecordReader.JoinDelegationIterator.next(TupleWritable val)
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protected boolean |
CompositeRecordReader.JoinCollector.next(TupleWritable val)
Populate Tuple from iterators. |
boolean |
JoinRecordReader.JoinDelegationIterator.replay(TupleWritable val)
|
boolean |
CompositeRecordReader.JoinCollector.replay(TupleWritable val)
Replay the last Tuple emitted. |
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