Package org.apache.hadoop.hive.ql.io

Interface Summary
FlatFileInputFormat.SerializationContext<S> An implementation of SerializationContext is responsible for looking up the Serialization implementation for the given RecordReader.
HiveOutputFormat<K extends WritableComparable,V extends Writable> HiveOutputFormat describes the output-specification for Hive's operators.
InputFormatChecker Check for validity of the input files.
 

Class Summary
CodecPool A global compressor/decompressor pool used to save and reuse (possibly native) compression/decompression codecs.
CombineHiveInputFormat<K extends WritableComparable,V extends Writable> CombineHiveInputFormat is a parameterized InputFormat which looks at the path name and determine the correct InputFormat for that path name from mapredPlan.pathToPartitionInfo().
CombineHiveInputFormat.CombineHiveInputSplit CombineHiveInputSplit encapsulates an InputSplit with its corresponding inputFormatClassName.
CombineHiveRecordReader<K extends WritableComparable,V extends Writable>  
FlatFileInputFormat<T> An InputFormat for Plain files with Deserializer records
FlatFileInputFormat.RowContainer<T> A work-around until HADOOP-1230 is fixed.
FlatFileInputFormat.SerializationContextFromConf<S> An implementation of FlatFileInputFormat.SerializationContext that reads the Serialization class and specific subclass to be deserialized from the JobConf.
HiveFileFormatUtils An util class for various Hive file format tasks.
HiveIgnoreKeyTextOutputFormat<K extends WritableComparable,V extends Writable> HiveIgnoreKeyTextOutputFormat replaces key with null before feeding the to TextOutputFormat.RecordWriter.
HiveIgnoreKeyTextOutputFormat.IgnoreKeyWriter<K extends WritableComparable,V extends Writable>  
HiveInputFormat<K extends WritableComparable,V extends Writable> HiveInputFormat is a parameterized InputFormat which looks at the path name and determine the correct InputFormat for that path name from mapredPlan.pathToPartitionInfo().
HiveInputFormat.HiveInputSplit HiveInputSplit encapsulates an InputSplit with its corresponding inputFormatClass.
HiveKey HiveKey is a simple wrapper on Text which allows us to set the hashCode easily.
HiveKey.Comparator A Comparator optimized for HiveKey.
HiveRecordReader<K extends WritableComparable,V extends Writable>  
HiveSequenceFileOutputFormat A HiveOutputFormat that writes SequenceFiles.
IgnoreKeyTextOutputFormat<K extends WritableComparable,V extends Writable> Deprecated. use HiveIgnoreKeyTextOutputFormat instead}
IgnoreKeyTextOutputFormat.IgnoreKeyWriter<K extends WritableComparable,V extends Writable>  
NonSyncDataInputBuffer A thread-not-safe version of Hadoop's DataInputBuffer, which removes all synchronized modifiers.
NonSyncDataOutputBuffer A thread-not-safe version of Hadoop's DataOutputBuffer, which removes all synchronized modifiers.
RCFile RCFiles, short of Record Columnar File, are flat files consisting of binary key/value pairs, which shares much similarity with SequenceFile.
RCFile.Reader Read KeyBuffer/ValueBuffer pairs from a RCFile.
RCFile.Writer Write KeyBuffer/ValueBuffer pairs to a RCFile.
RCFileInputFormat<K extends LongWritable,V extends BytesRefArrayWritable>  
RCFileOutputFormat  
RCFileRecordReader<K extends LongWritable,V extends BytesRefArrayWritable>  
SequenceFileInputFormatChecker  
 



Copyright © 2009 The Apache Software Foundation