Uses of Interface org.apache.hadoop.mapred.join.ComposableRecordReader (Apache Hadoop Main 3.5.0 API)
Description: use: package: org.apache.hadoop.mapred.join, interface: ComposableRecordReader

# Uses of Interface
org.apache.hadoop.mapred.join.ComposableRecordReader

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

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

  Classes in org.apache.hadoop.mapred.join that implement ComposableRecordReader
  Modifier and Type
  Class
  Description
  `class`
  `InnerJoinRecordReader<K extends WritableComparable>`
  Full inner join.
  `class`
  `JoinRecordReader<K extends WritableComparable>`
  Base class for Composite joins returning Tuples of arbitrary Writables.
  `class`
  `MultiFilterRecordReader<K extends WritableComparable,V extends Writable>`
  Base class for Composite join returning values derived from multiple sources, but generally not tuples.
  `class`
  `OuterJoinRecordReader<K extends WritableComparable>`
  Full outer join.
  `class`
  `OverrideRecordReader<K extends WritableComparable,V extends Writable>`
  Prefer the "rightmost" data source for this key.
  `class`
  `WrappedRecordReader<K extends WritableComparable,U extends Writable>`
  Proxy class for a RecordReader participating in the join framework.
  Fields in org.apache.hadoop.mapred.join declared as ComposableRecordReader
  Modifier and Type
  Field
  Description
  `protected final ComposableRecordReader<K,? extends V>[]`
  CompositeRecordReader.`kids`
  Fields in org.apache.hadoop.mapred.join with type parameters of type ComposableRecordReader
  Modifier and Type
  Field
  Description
  `protected static final Map<String,Constructor<? extends ComposableRecordReader>>`
  Parser.Node.`rrCstrMap`
  Methods in org.apache.hadoop.mapred.join that return ComposableRecordReader
  Modifier and Type
  Method
  Description
  `ComposableRecordReader<K,V>`
  ComposableInputFormat.`getRecordReader(InputSplit split, JobConf job, Reporter reporter)`
  `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 that return types with arguments of type ComposableRecordReader
  Modifier and Type
  Method
  Description
  `protected PriorityQueue<ComposableRecordReader<K,?>>`
  CompositeRecordReader.`getRecordReaderQueue()`
  Return sorted list of RecordReaders for this composite.
  Methods in org.apache.hadoop.mapred.join with parameters of type ComposableRecordReader
  Modifier and Type
  Method
  Description
  `void`
  CompositeRecordReader.`add(ComposableRecordReader<K,? extends V> rr)`
  Add a RecordReader to this collection.
  `int`
  CompositeRecordReader.`compareTo(ComposableRecordReader<K,?> other)`
  Implement Comparable contract (compare key of join or head of heap with that of another).
  `int`
  WrappedRecordReader.`compareTo(ComposableRecordReader<K,?> other)`
  Implement Comparable contract (compare key at head of proxied RR with that of another).