@InterfaceAudience.Public @InterfaceStability.Stable public class KeyValueLineRecordReader extends RecordReader<Text,Text>
| Modifier and Type | Field and Description |
|---|---|
static String |
KEY_VALUE_SEPARATOR |
static String |
KEY_VALUE_SEPERATOR
Deprecated.
|
| Constructor and Description |
|---|
KeyValueLineRecordReader(Configuration conf) |
| Modifier and Type | Method and Description |
|---|---|
void |
close()
Close the record reader.
|
static int |
findSeparator(byte[] utf,
int start,
int length,
byte sep) |
Text |
getCurrentKey()
Get the current key
|
Text |
getCurrentValue()
Get the current value.
|
Class |
getKeyClass() |
float |
getProgress()
The current progress of the record reader through its data.
|
void |
initialize(InputSplit genericSplit,
TaskAttemptContext context)
Called once at initialization.
|
boolean |
nextKeyValue()
Read key/value pair in a line.
|
static void |
setKeyValue(Text key,
Text value,
byte[] line,
int lineLen,
int pos) |
public static final String KEY_VALUE_SEPARATOR
@Deprecated public static final String KEY_VALUE_SEPERATOR
KEY_VALUE_SEPARATORpublic KeyValueLineRecordReader(Configuration conf) throws IOException
IOExceptionpublic Class getKeyClass()
public void initialize(InputSplit genericSplit, TaskAttemptContext context) throws IOException
RecordReaderinitialize in class RecordReader<Text,Text>genericSplit - the split that defines the range of records to readcontext - the information about the taskIOExceptionpublic static int findSeparator(byte[] utf,
int start,
int length,
byte sep)
public boolean nextKeyValue()
throws IOException
nextKeyValue in class RecordReader<Text,Text>IOExceptionpublic Text getCurrentKey()
RecordReadergetCurrentKey in class RecordReader<Text,Text>public Text getCurrentValue()
RecordReadergetCurrentValue in class RecordReader<Text,Text>public float getProgress()
throws IOException
RecordReadergetProgress in class RecordReader<Text,Text>IOExceptionpublic void close()
throws IOException
RecordReaderclose in interface Closeableclose in interface AutoCloseableclose in class RecordReader<Text,Text>IOExceptionCopyright © 2024 Apache Software Foundation. All rights reserved.