Uses of Class org.apache.hadoop.mapred.join.TupleWritable (Apache Hadoop Main 3.5.0 API)
Description: use: package: org.apache.hadoop.mapred.join, class: TupleWritable

# Uses of Class
org.apache.hadoop.mapred.join.TupleWritable

Packages that use TupleWritable
Package
Description
org.apache.hadoop.mapred.join

- ## Uses of TupleWritable in org.apache.hadoop.mapred.join

  Methods in org.apache.hadoop.mapred.join that return TupleWritable
  Modifier and Type
  Method
  Description
  `protected TupleWritable`
  CompositeRecordReader.`createInternalValue()`
  Create a value to be used internally for joins.
  `TupleWritable`
  JoinRecordReader.`createValue()`
  Create an object of the appropriate type to be used as a value.
  Methods in org.apache.hadoop.mapred.join that return types with arguments of type TupleWritable
  Modifier and Type
  Method
  Description
  `protected ResetableIterator<TupleWritable>`
  JoinRecordReader.`getDelegate()`
  Return an iterator wrapping the JoinCollector.
  `ComposableRecordReader<K,TupleWritable>`
  CompositeInputFormat.`getRecordReader(InputSplit split, JobConf job, Reporter reporter)`
  Construct a CompositeRecordReader for the children of this InputFormat as defined in the init expression.
  Methods in org.apache.hadoop.mapred.join with parameters of type TupleWritable
  Modifier and Type
  Method
  Description
  `protected abstract boolean`
  CompositeRecordReader.`combine(Object[] srcs, TupleWritable value)`
  `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.mapred.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 V`
  MultiFilterRecordReader.`emit(TupleWritable dst)`
  For each tuple emitted, return a value (typically one of the values in the tuple).
  `protected V`
  OverrideRecordReader.`emit(TupleWritable dst)`
  Emit the value with the highest position in the tuple.
  `boolean`
  JoinRecordReader.`next(K key, TupleWritable value)`
  Emit the next set of key, value pairs as defined by the child RecordReaders and operation associated with this composite RR.