@InterfaceAudience.Public @InterfaceStability.Stable public class SequenceFileAsTextRecordReader extends RecordReader<Text,Text>
| コンストラクタと説明 |
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SequenceFileAsTextRecordReader() |
| 修飾子とタイプ | メソッドと説明 |
|---|---|
void |
close()
Close the record reader.
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Text |
getCurrentKey()
Get the current key
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Text |
getCurrentValue()
Get the current value.
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float |
getProgress()
The current progress of the record reader through its data.
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void |
initialize(InputSplit split,
TaskAttemptContext context)
Called once at initialization.
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boolean |
nextKeyValue()
Read key/value pair in a line.
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public SequenceFileAsTextRecordReader() throws IOException
IOExceptionpublic void initialize(InputSplit split, TaskAttemptContext context) throws IOException, InterruptedException
RecordReaderinitialize クラス内 RecordReader<Text,Text>split - the split that defines the range of records to readcontext - the information about the taskIOExceptionInterruptedExceptionpublic Text getCurrentKey() throws IOException, InterruptedException
RecordReadergetCurrentKey クラス内 RecordReader<Text,Text>IOExceptionInterruptedExceptionpublic Text getCurrentValue() throws IOException, InterruptedException
RecordReadergetCurrentValue クラス内 RecordReader<Text,Text>IOExceptionInterruptedExceptionpublic boolean nextKeyValue() throws IOException, InterruptedException
nextKeyValue クラス内 RecordReader<Text,Text>IOExceptionInterruptedExceptionpublic float getProgress() throws IOException, InterruptedException
RecordReadergetProgress クラス内 RecordReader<Text,Text>IOExceptionInterruptedExceptionpublic void close() throws IOException
RecordReaderclose インタフェース内 Closeableclose インタフェース内 AutoCloseableclose クラス内 RecordReader<Text,Text>IOExceptionCopyright © 2016 Apache Software Foundation. All rights reserved.