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Packages that use Closeable | |
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org.apache.hadoop.contrib.utils.join | |
org.apache.hadoop.examples | Hadoop example code. |
org.apache.hadoop.mapred | A system for scalable, fault-tolerant, distributed computation over large data collections. |
org.apache.hadoop.mapred.lib | Library of generally useful mappers, reducers, and partitioners. |
org.apache.hadoop.mapred.lib.aggregate | Classes for performing various counting and aggregations. |
org.apache.hadoop.streaming | |
org.apache.hadoop.tools | |
org.apache.hadoop.util | Common utilities. |
Uses of Closeable in org.apache.hadoop.contrib.utils.join |
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Classes in org.apache.hadoop.contrib.utils.join that implement Closeable | |
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class |
DataJoinMapperBase
This abstract class serves as the base class for the mapper class of a data join job. |
class |
DataJoinReducerBase
This abstract class serves as the base class for the reducer class of a data join job. |
class |
JobBase
A common base implementing some statics collecting mechanisms that are commonly used in a typical map/reduce job. |
Uses of Closeable in org.apache.hadoop.examples |
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Classes in org.apache.hadoop.examples that implement Closeable | |
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static class |
PiEstimator.PiMapper
Mappper class for Pi estimation. |
static class |
PiEstimator.PiReducer
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static class |
WordCount.MapClass
Counts the words in each line. |
static class |
WordCount.Reduce
A reducer class that just emits the sum of the input values. |
Uses of Closeable in org.apache.hadoop.mapred |
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Subinterfaces of Closeable in org.apache.hadoop.mapred | |
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interface |
Mapper
Maps input key/value pairs to a set of intermediate key/value pairs. |
interface |
Reducer
Reduces a set of intermediate values which share a key to a smaller set of values. |
Classes in org.apache.hadoop.mapred that implement Closeable | |
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class |
MapReduceBase
Base class for Mapper and Reducer implementations. |
Uses of Closeable in org.apache.hadoop.mapred.lib |
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Classes in org.apache.hadoop.mapred.lib that implement Closeable | |
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class |
FieldSelectionMapReduce
This class implements a mapper/reducer class that can be used to perform field selections in a manner similar to unix cut. |
class |
IdentityMapper
Implements the identity function, mapping inputs directly to outputs. |
class |
IdentityReducer
Performs no reduction, writing all input values directly to the output. |
class |
InverseMapper
A Mapper that swaps keys and values. |
class |
LongSumReducer
A Reducer that sums long values. |
class |
RegexMapper
A Mapper that extracts text matching a regular expression. |
class |
TokenCountMapper
A Mapper that maps text values into |
Uses of Closeable in org.apache.hadoop.mapred.lib.aggregate |
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Classes in org.apache.hadoop.mapred.lib.aggregate that implement Closeable | |
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class |
ValueAggregatorCombiner
This class implements the generic combiner of Abacus. |
class |
ValueAggregatorJobBase
This abstract class implements some common functionalities of the the generic mapper, reducer and combiner classes of Abacus. |
class |
ValueAggregatorMapper
This class implements the generic mapper of Abacus. |
class |
ValueAggregatorReducer
This class implements the generic reducer of Abacus. |
Uses of Closeable in org.apache.hadoop.streaming |
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Classes in org.apache.hadoop.streaming that implement Closeable | |
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class |
PipeMapper
A generic Mapper bridge. |
class |
PipeReducer
A generic Reducer bridge. |
Uses of Closeable in org.apache.hadoop.tools |
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Classes in org.apache.hadoop.tools that implement Closeable | |
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static class |
Logalyzer.LogRegexMapper
A Mapper that extracts text matching a regular expression. |
Uses of Closeable in org.apache.hadoop.util |
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Classes in org.apache.hadoop.util that implement Closeable | |
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static class |
CopyFiles.CopyFilesMapper
Base-class for all mappers for distcp |
static class |
CopyFiles.FSCopyFilesMapper
DFSCopyFilesMapper: The mapper for copying files from the DFS. |
static class |
CopyFiles.HTTPCopyFilesMapper
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