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## Uses of Interface
org.apache.hadoop.io.Closeable

Packages that use Closeable
org.apache.hadoop.mapred |
org.apache.hadoop.mapred.lib |
org.apache.hadoop.mapred.lib.aggregate |

Uses of Closeable in org.apache.hadoop.mapred

Subinterfaces of Closeable in org.apache.hadoop.mapred
`interface` | `Mapper<K1,V1,K2,V2>` Maps input key/value pairs to a set of intermediate key/value pairs.
`interface` | `Reducer<K2,V2,K3,V3>` Reduces a set of intermediate values which share a key to a smaller set of values.

Uses of Closeable in org.apache.hadoop.mapred.lib

Classes in org.apache.hadoop.mapred.lib that implement Closeable
`class` | `ChainMapper` The ChainMapper class allows to use multiple Mapper classes within a single Map task.
`class` | `ChainReducer` The ChainReducer class allows to chain multiple Mapper classes after a Reducer within the Reducer task.
`class` | `FieldSelectionMapReduce<K,V>` This class implements a mapper/reducer class that can be used to perform field selections in a manner similar to unix cut.
`class` | `IdentityMapper<K,V>` Implements the identity function, mapping inputs directly to outputs.
`class` | `IdentityReducer<K,V>` Performs no reduction, writing all input values directly to the output.
`class` | `InverseMapper<K,V>` A `Mapper` that swaps keys and values.
`class` | `LongSumReducer<K>` A `Reducer` that sums long values.
`class` | `RegexMapper<K>` A `Mapper` that extracts text matching a regular expression.
`class` | `TokenCountMapper<K>` A `Mapper` that maps text values into pairs.

Uses of Closeable in org.apache.hadoop.mapred.lib.aggregate

Classes in org.apache.hadoop.mapred.lib.aggregate that implement Closeable
`class` | `ValueAggregatorCombiner<K1 extends WritableComparable,V1 extends Writable>` This class implements the generic combiner of Aggregate.
`class` | `ValueAggregatorJobBase<K1 extends WritableComparable,V1 extends Writable>` This abstract class implements some common functionalities of the the generic mapper, reducer and combiner classes of Aggregate.
`class` | `ValueAggregatorMapper<K1 extends WritableComparable,V1 extends Writable>` This class implements the generic mapper of Aggregate.
`class` | `ValueAggregatorReducer<K1 extends WritableComparable,V1 extends Writable>` This class implements the generic reducer of Aggregate.

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