@InterfaceAudience.Public @InterfaceStability.Stable public class SequenceFileRecordReader<K,V> extends RecordReader<K,V>
RecordReader
for SequenceFile
s.修飾子とタイプ | フィールドと説明 |
---|---|
protected Configuration |
conf |
コンストラクタと説明 |
---|
SequenceFileRecordReader() |
修飾子とタイプ | メソッドと説明 |
---|---|
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.
|
protected Configuration conf
public SequenceFileRecordReader()
public void initialize(InputSplit split, TaskAttemptContext context) throws IOException, InterruptedException
RecordReader
initialize
クラス内 RecordReader<K,V>
split
- the split that defines the range of records to readcontext
- the information about the taskIOException
InterruptedException
public boolean nextKeyValue() throws IOException, InterruptedException
RecordReader
nextKeyValue
クラス内 RecordReader<K,V>
IOException
InterruptedException
public K getCurrentKey()
RecordReader
getCurrentKey
クラス内 RecordReader<K,V>
public V getCurrentValue()
RecordReader
getCurrentValue
クラス内 RecordReader<K,V>
public float getProgress() throws IOException
getProgress
クラス内 RecordReader<K,V>
IOException
public void close() throws IOException
RecordReader
close
インタフェース内 Closeable
close
インタフェース内 AutoCloseable
close
クラス内 RecordReader<K,V>
IOException
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