org.apache.hadoop.mapreduce.lib.input
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## Package `org.apache.hadoop.mapreduce.lib.input`

Added Classes
`CombineFileInputFormat` | An abstract InputFormat that returns i InputFormat#getSplits(JobContext) method.
`CombineFileRecordReader` | A generic RecordReader that can hand out different recordReaders for each chunk in a CombineFileSplit A CombineFileSplit can combine data chunks from multiple files.
`CombineFileSplit` | A sub-collection of input files.
`DelegatingInputFormat` | An InputFormat that delegates behavior of paths to multiple other InputFormats.
`DelegatingMapper` | An Mapper that delegates behavior of paths to multiple other mappers.
`DelegatingRecordReader` | This is a delegating RecordReader which delegates the functionality to the underlying record reader in TaggedInputSplit
`KeyValueLineRecordReader` | This class treats a line in the input as a key/value pair separated by a separator character.
`KeyValueTextInputFormat` | An InputFormat for plain text files.
`MultipleInputs` | This class supports MapReduce jobs that have multiple input paths with a different InputFormat and Mapper for each path

Changed Classes
LineRecordReader | Treats keys as offset in file and value as line.

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