Uses of Interface
org.apache.hadoop.mapred.InputFormat

Packages that use InputFormat

org.apache.hadoop.mapred
org.apache.hadoop.mapred.join
org.apache.hadoop.mapred.lib
org.apache.hadoop.mapred.lib.db

Uses of InputFormat in org.apache.hadoop.mapred

Classes in org.apache.hadoop.mapred that implement InputFormat

class	FileInputFormat<K,V> A base class for file-based InputFormat.
class	FixedLengthInputFormat FixedLengthInputFormat is an input format used to read input files which contain fixed length records.
class	KeyValueTextInputFormat An InputFormat for plain text files.
class	MultiFileInputFormat<K,V> An abstract InputFormat that returns MultiFileSplit's in MultiFileInputFormat.getSplits(JobConf, int) method.
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	SequenceFileInputFilter<K,V> A class that allows a map/red job to work on a sample of sequence files.
class	SequenceFileInputFormat<K,V> An InputFormat for SequenceFiles.
class	TextInputFormat An InputFormat for plain text files.

Methods in org.apache.hadoop.mapred that return InputFormat

InputFormat

JobConf.getInputFormat() Get the InputFormat implementation for the map-reduce job, defaults to TextInputFormat if not specified explicity.

Method parameters in org.apache.hadoop.mapred with type arguments of type InputFormat

void	JobConf.setInputFormat(Class<? extends InputFormat> theClass) Set the InputFormat implementation for the map-reduce job.

Uses of InputFormat in org.apache.hadoop.mapred.join

Subinterfaces of InputFormat in org.apache.hadoop.mapred.join

interface

ComposableInputFormat<K extends WritableComparable,V extends Writable> Refinement of InputFormat requiring implementors to provide ComposableRecordReader instead of RecordReader.

Classes in org.apache.hadoop.mapred.join that implement InputFormat

class	CompositeInputFormat<K extends WritableComparable> An InputFormat capable of performing joins over a set of data sources sorted and partitioned the same way.
static class	Parser.Node

Method parameters in org.apache.hadoop.mapred.join with type arguments of type InputFormat

static String	CompositeInputFormat.compose(Class<? extends InputFormat> inf, String path) Convenience method for constructing composite formats.
static String	CompositeInputFormat.compose(String op, Class<? extends InputFormat> inf, org.apache.hadoop.fs.Path... path) Convenience method for constructing composite formats.
static String	CompositeInputFormat.compose(String op, Class<? extends InputFormat> inf, String... path) Convenience method for constructing composite formats.

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

Classes in org.apache.hadoop.mapred.lib that implement InputFormat

class	CombineFileInputFormat<K,V> An abstract InputFormat that returns CombineFileSplit's in getSplits(JobConf, int) method.
class	CombineSequenceFileInputFormat<K,V> Input format that is a CombineFileInputFormat-equivalent for SequenceFileInputFormat.
class	CombineTextInputFormat Input format that is a CombineFileInputFormat-equivalent for TextInputFormat.
class	DelegatingInputFormat<K,V> An InputFormat that delegates behaviour of paths to multiple other InputFormats.
class	NLineInputFormat NLineInputFormat which splits N lines of input as one split.

Methods in org.apache.hadoop.mapred.lib with parameters of type InputFormat

K[]	InputSampler.Sampler.getSample(InputFormat<K,V> inf, JobConf job) For a given job, collect and return a subset of the keys from the input data.
K[]	InputSampler.SplitSampler.getSample(InputFormat<K,V> inf, JobConf job) From each split sampled, take the first numSamples / numSplits records.
K[]	InputSampler.RandomSampler.getSample(InputFormat<K,V> inf, JobConf job) Randomize the split order, then take the specified number of keys from each split sampled, where each key is selected with the specified probability and possibly replaced by a subsequently selected key when the quota of keys from that split is satisfied.
K[]	InputSampler.IntervalSampler.getSample(InputFormat<K,V> inf, JobConf job) For each split sampled, emit when the ratio of the number of records retained to the total record count is less than the specified frequency.

Method parameters in org.apache.hadoop.mapred.lib with type arguments of type InputFormat

static void	MultipleInputs.addInputPath(JobConf conf, org.apache.hadoop.fs.Path path, Class<? extends InputFormat> inputFormatClass) Add a Path with a custom InputFormat to the list of inputs for the map-reduce job.
static void	MultipleInputs.addInputPath(JobConf conf, org.apache.hadoop.fs.Path path, Class<? extends InputFormat> inputFormatClass, Class<? extends Mapper> mapperClass) Add a Path with a custom InputFormat and Mapper to the list of inputs for the map-reduce job.

Uses of InputFormat in org.apache.hadoop.mapred.lib.db

Classes in org.apache.hadoop.mapred.lib.db that implement InputFormat

class

DBInputFormat<T extends DBWritable>