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| Packages that use RecordReader | |
|---|---|
| org.apache.hadoop.mapreduce | |
| org.apache.hadoop.mapreduce.lib.db | |
| org.apache.hadoop.mapreduce.lib.input | |
| Uses of RecordReader in org.apache.hadoop.mapreduce |
|---|
| Methods in org.apache.hadoop.mapreduce that return RecordReader | |
|---|---|
abstract RecordReader<K,V> |
InputFormat.createRecordReader(InputSplit split,
TaskAttemptContext context)
Create a record reader for a given split. |
| Constructors in org.apache.hadoop.mapreduce with parameters of type RecordReader | |
|---|---|
MapContext(Configuration conf,
TaskAttemptID taskid,
RecordReader<KEYIN,VALUEIN> reader,
RecordWriter<KEYOUT,VALUEOUT> writer,
OutputCommitter committer,
StatusReporter reporter,
InputSplit split)
|
|
Mapper.Context(Configuration conf,
TaskAttemptID taskid,
RecordReader<KEYIN,VALUEIN> reader,
RecordWriter<KEYOUT,VALUEOUT> writer,
OutputCommitter committer,
StatusReporter reporter,
InputSplit split)
|
|
| Uses of RecordReader in org.apache.hadoop.mapreduce.lib.db |
|---|
| Subclasses of RecordReader in org.apache.hadoop.mapreduce.lib.db | |
|---|---|
class |
DataDrivenDBRecordReader<T extends DBWritable>
A RecordReader that reads records from a SQL table, using data-driven WHERE clause splits. |
class |
DBRecordReader<T extends DBWritable>
A RecordReader that reads records from a SQL table. |
class |
MySQLDataDrivenDBRecordReader<T extends DBWritable>
A RecordReader that reads records from a MySQL table via DataDrivenDBRecordReader |
class |
MySQLDBRecordReader<T extends DBWritable>
A RecordReader that reads records from a MySQL table. |
class |
OracleDataDrivenDBRecordReader<T extends DBWritable>
A RecordReader that reads records from a Oracle table via DataDrivenDBRecordReader |
class |
OracleDBRecordReader<T extends DBWritable>
A RecordReader that reads records from an Oracle SQL table. |
| Methods in org.apache.hadoop.mapreduce.lib.db that return RecordReader | |
|---|---|
protected RecordReader<LongWritable,T> |
DBInputFormat.createDBRecordReader(DBInputFormat.DBInputSplit split,
Configuration conf)
|
protected RecordReader<LongWritable,T> |
OracleDataDrivenDBInputFormat.createDBRecordReader(DBInputFormat.DBInputSplit split,
Configuration conf)
|
protected RecordReader<LongWritable,T> |
DataDrivenDBInputFormat.createDBRecordReader(DBInputFormat.DBInputSplit split,
Configuration conf)
|
RecordReader<LongWritable,T> |
DBInputFormat.createRecordReader(InputSplit split,
TaskAttemptContext context)
Create a record reader for a given split. |
| Uses of RecordReader in org.apache.hadoop.mapreduce.lib.input |
|---|
| Subclasses of RecordReader in org.apache.hadoop.mapreduce.lib.input | |
|---|---|
class |
CombineFileRecordReader<K,V>
A generic RecordReader that can hand out different recordReaders for each chunk in a CombineFileSplit. |
class |
DelegatingRecordReader<K,V>
This is a delegating RecordReader, which delegates the functionality to the underlying record reader in TaggedInputSplit |
class |
KeyValueLineRecordReader
This class treats a line in the input as a key/value pair separated by a separator character. |
class |
LineRecordReader
Treats keys as offset in file and value as line. |
static class |
SequenceFileAsBinaryInputFormat.SequenceFileAsBinaryRecordReader
Read records from a SequenceFile as binary (raw) bytes. |
class |
SequenceFileAsTextRecordReader
This class converts the input keys and values to their String forms by calling toString() method. |
class |
SequenceFileRecordReader<K,V>
An RecordReader for SequenceFiles. |
| Fields in org.apache.hadoop.mapreduce.lib.input declared as RecordReader | |
|---|---|
protected RecordReader<K,V> |
CombineFileRecordReader.curReader
|
| Fields in org.apache.hadoop.mapreduce.lib.input with type parameters of type RecordReader | |
|---|---|
protected Class<? extends RecordReader<K,V>> |
CombineFileRecordReader.rrClass
|
protected Constructor<? extends RecordReader<K,V>> |
CombineFileRecordReader.rrConstructor
|
| Constructor parameters in org.apache.hadoop.mapreduce.lib.input with type arguments of type RecordReader | |
|---|---|
CombineFileRecordReader(CombineFileSplit split,
TaskAttemptContext context,
Class<? extends RecordReader<K,V>> rrClass)
A generic RecordReader that can hand out different recordReaders for each chunk in the CombineFileSplit. |
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