@InterfaceAudience.Public @InterfaceStability.Stable public class SequenceFileRecordReader<K,V> extends RecordReader<K,V>
RecordReader for SequenceFiles.| Modifier and Type | Field and Description |
|---|---|
protected org.apache.hadoop.conf.Configuration |
conf |
| Constructor and Description |
|---|
SequenceFileRecordReader() |
| Modifier and Type | Method and Description |
|---|---|
void |
close()
Close the record reader.
|
K |
getCurrentKey()
Get the current key
|
V |
getCurrentValue()
Get the current value.
|
float |
getProgress()
Return the progress within the input split
|
void |
initialize(InputSplit split,
TaskAttemptContext context)
Called once at initialization.
|
boolean |
nextKeyValue()
Read the next key, value pair.
|
public void initialize(InputSplit split, TaskAttemptContext context) throws IOException, InterruptedException
RecordReaderinitialize in class RecordReader<K,V>split - the split that defines the range of records to readcontext - the information about the taskIOExceptionInterruptedExceptionpublic boolean nextKeyValue()
throws IOException,
InterruptedException
RecordReadernextKeyValue in class RecordReader<K,V>IOExceptionInterruptedExceptionpublic K getCurrentKey()
RecordReadergetCurrentKey in class RecordReader<K,V>public V getCurrentValue()
RecordReadergetCurrentValue in class RecordReader<K,V>public float getProgress()
throws IOException
getProgress in class RecordReader<K,V>IOExceptionpublic void close()
throws IOException
RecordReaderclose in interface Closeableclose in interface AutoCloseableclose in class RecordReader<K,V>IOExceptionCopyright © 2008–2022 Apache Software Foundation. All rights reserved.