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java.lang.Objectorg.apache.hadoop.mapred.FileInputFormat<Void,FlatFileInputFormat.RowContainer<T>>
org.apache.hadoop.hive.ql.io.FlatFileInputFormat<T>
public class FlatFileInputFormat<T>
An InputFormat
for Plain files with Deserializer
records
Nested Class Summary | |
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class |
FlatFileInputFormat.FlatFileRecordReader<R>
An RecordReader for plain files with Deserializer records
Reads one row at a time of type R. |
static class |
FlatFileInputFormat.RowContainer<T>
A work-around until HADOOP-1230 is fixed. |
static interface |
FlatFileInputFormat.SerializationContext<S>
An implementation of SerializationContext is responsible for looking up the Serialization implementation for the given RecordReader. |
static class |
FlatFileInputFormat.SerializationContextFromConf<S>
An implementation of FlatFileInputFormat.SerializationContext that reads the Serialization class and
specific subclass to be deserialized from the JobConf. |
Field Summary | |
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static String |
SerializationImplKey
The JobConf keys for the Serialization implementation |
Fields inherited from class org.apache.hadoop.mapred.FileInputFormat |
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LOG |
Constructor Summary | |
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FlatFileInputFormat()
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Method Summary | |
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org.apache.hadoop.mapred.RecordReader<Void,FlatFileInputFormat.RowContainer<T>> |
getRecordReader(org.apache.hadoop.mapred.InputSplit split,
org.apache.hadoop.mapred.JobConf job,
org.apache.hadoop.mapred.Reporter reporter)
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protected boolean |
isSplittable(org.apache.hadoop.fs.FileSystem fs,
org.apache.hadoop.fs.Path filename)
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Methods inherited from class org.apache.hadoop.mapred.FileInputFormat |
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addInputPath, addInputPaths, computeSplitSize, getBlockIndex, getInputPathFilter, getInputPaths, getSplitHosts, getSplits, isSplitable, listStatus, setInputPathFilter, setInputPaths, setInputPaths, setMinSplitSize |
Methods inherited from class java.lang.Object |
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clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
Field Detail |
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public static final String SerializationImplKey
Constructor Detail |
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public FlatFileInputFormat()
Method Detail |
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protected boolean isSplittable(org.apache.hadoop.fs.FileSystem fs, org.apache.hadoop.fs.Path filename)
public org.apache.hadoop.mapred.RecordReader<Void,FlatFileInputFormat.RowContainer<T>> getRecordReader(org.apache.hadoop.mapred.InputSplit split, org.apache.hadoop.mapred.JobConf job, org.apache.hadoop.mapred.Reporter reporter) throws IOException
getRecordReader
in interface org.apache.hadoop.mapred.InputFormat<Void,FlatFileInputFormat.RowContainer<T>>
getRecordReader
in class org.apache.hadoop.mapred.FileInputFormat<Void,FlatFileInputFormat.RowContainer<T>>
IOException
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