类 org.apache.hadoop.classification.InterfaceStability.Stable
的使用

使用InterfaceStability.Stable的程序包

程序包	说明
org.apache.hadoop.io	Generic i/o code for use when reading and writing data to the network, to databases, and to files.
org.apache.hadoop.log.metrics
org.apache.hadoop.mapreduce.lib.db
org.apache.hadoop.mapreduce.lib.fieldsel
org.apache.hadoop.mapreduce.lib.input
org.apache.hadoop.mapreduce.lib.output
org.apache.hadoop.mapreduce.lib.partition

org.apache.hadoop.io中InterfaceStability.Stable的使用

注释类型为InterfaceStability.Stable的org.apache.hadoop.io中的类

限定符和类型	类和说明
class	UTF8 已过时。 replaced by Text

org.apache.hadoop.log.metrics中InterfaceStability.Stable的使用

注释类型为InterfaceStability.Stable的org.apache.hadoop.log.metrics中的类

限定符和类型	类和说明
class	EventCounter A log4J Appender that simply counts logging events in three levels: fatal, error and warn.

org.apache.hadoop.mapreduce.lib.db中InterfaceStability.Stable的使用

注释类型为InterfaceStability.Stable的org.apache.hadoop.mapreduce.lib.db中的类

限定符和类型	类和说明
class	DBConfiguration A container for configuration property names for jobs with DB input/output.
class	DBInputFormat<T extends DBWritable> A InputFormat that reads input data from an SQL table.
class	DBOutputFormat<K extends DBWritable,V> A OutputFormat that sends the reduce output to a SQL table.
interface	DBWritable Objects that are read from/written to a database should implement DBWritable.

org.apache.hadoop.mapreduce.lib.fieldsel中InterfaceStability.Stable的使用

注释类型为InterfaceStability.Stable的org.apache.hadoop.mapreduce.lib.fieldsel中的类

限定符和类型	类和说明
class	FieldSelectionHelper This class implements a mapper/reducer class that can be used to perform field selections in a manner similar to unix cut.
class	FieldSelectionMapper<K,V> This class implements a mapper class that can be used to perform field selections in a manner similar to unix cut.
class	FieldSelectionReducer<K,V> This class implements a reducer class that can be used to perform field selections in a manner similar to unix cut.

org.apache.hadoop.mapreduce.lib.input中InterfaceStability.Stable的使用

注释类型为InterfaceStability.Stable的org.apache.hadoop.mapreduce.lib.input中的类

限定符和类型	类和说明
class	CombineFileInputFormat<K,V> An abstract InputFormat that returns CombineFileSplit's in InputFormat.getSplits(JobContext) method.
class	CombineFileRecordReader<K,V> A generic RecordReader that can hand out different recordReaders for each chunk in a CombineFileSplit.
class	CombineFileSplit A sub-collection of input files.
class	KeyValueLineRecordReader This class treats a line in the input as a key/value pair separated by a separator character.
class	KeyValueTextInputFormat An InputFormat for plain text files.
class	MultipleInputs This class supports MapReduce jobs that have multiple input paths with a different InputFormat and Mapper for each path
class	NLineInputFormat NLineInputFormat which splits N lines of input as one split.
class	SequenceFileAsBinaryInputFormat InputFormat reading keys, values from SequenceFiles in binary (raw) format.
class	SequenceFileAsTextInputFormat This class is similar to SequenceFileInputFormat, except it generates SequenceFileAsTextRecordReader which converts the input keys and values to their String forms by calling toString() method.
class	SequenceFileAsTextRecordReader This class converts the input keys and values to their String forms by calling toString() method.
class	SequenceFileInputFilter<K,V> A class that allows a map/red job to work on a sample of sequence files.

org.apache.hadoop.mapreduce.lib.output中InterfaceStability.Stable的使用

注释类型为InterfaceStability.Stable的org.apache.hadoop.mapreduce.lib.output中的类

限定符和类型	类和说明
class	FilterOutputFormat<K,V> FilterOutputFormat is a convenience class that wraps OutputFormat.
class	LazyOutputFormat<K,V> A Convenience class that creates output lazily.
class	MultipleOutputs<KEYOUT,VALUEOUT> The MultipleOutputs class simplifies writing output data to multiple outputs Case one: writing to additional outputs other than the job default output.
class	SequenceFileAsBinaryOutputFormat An OutputFormat that writes keys, values to SequenceFiles in binary(raw) format

org.apache.hadoop.mapreduce.lib.partition中InterfaceStability.Stable的使用

注释类型为InterfaceStability.Stable的org.apache.hadoop.mapreduce.lib.partition中的类

限定符和类型	类和说明
class	InputSampler<K,V> Utility for collecting samples and writing a partition file for TotalOrderPartitioner.
class	KeyFieldBasedComparator<K,V> This comparator implementation provides a subset of the features provided by the Unix/GNU Sort.
class	KeyFieldBasedPartitioner<K2,V2> Defines a way to partition keys based on certain key fields (also see KeyFieldBasedComparator.
class	TotalOrderPartitioner<K extends WritableComparable<?>,V> Partitioner effecting a total order by reading split points from an externally generated source.