| 修飾子とタイプ | メソッドと説明 |
|---|---|
RecordReader<K,V> |
CombineFileInputFormat.createRecordReader(InputSplit split,
TaskAttemptContext context) |
| 修飾子とタイプ | メソッドと説明 |
|---|---|
abstract RecordReader<K,V> |
InputFormat.createRecordReader(InputSplit split,
TaskAttemptContext context)
Create a record reader for a given split.
|
| 修飾子とタイプ | クラスと説明 |
|---|---|
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.
|
| 修飾子とタイプ | メソッドと説明 |
|---|---|
protected RecordReader<LongWritable,T> |
DBInputFormat.createDBRecordReader(org.apache.hadoop.mapreduce.lib.db.DBInputFormat.DBInputSplit split,
Configuration conf) |
protected RecordReader<LongWritable,T> |
DataDrivenDBInputFormat.createDBRecordReader(org.apache.hadoop.mapreduce.lib.db.DBInputFormat.DBInputSplit split,
Configuration conf) |
protected RecordReader<LongWritable,T> |
OracleDataDrivenDBInputFormat.createDBRecordReader(org.apache.hadoop.mapreduce.lib.db.DBInputFormat.DBInputSplit split,
Configuration conf) |
RecordReader<LongWritable,T> |
DBInputFormat.createRecordReader(InputSplit split,
TaskAttemptContext context)
Create a record reader for a given split.
|
| 修飾子とタイプ | クラスと説明 |
|---|---|
class |
CombineFileRecordReader<K,V>
A generic RecordReader that can hand out different recordReaders
for each chunk in a
CombineFileSplit. |
class |
CombineFileRecordReaderWrapper<K,V>
A wrapper class for a record reader that handles a single file split.
|
class |
KeyValueLineRecordReader
This class treats a line in the input as a key/value pair separated by a
separator character.
|
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. |
| 修飾子とタイプ | フィールドと説明 |
|---|---|
protected RecordReader<K,V> |
CombineFileRecordReader.curReader |
| 修飾子とタイプ | フィールドと説明 |
|---|---|
protected Constructor<? extends RecordReader<K,V>> |
CombineFileRecordReader.rrConstructor |
| コンストラクタと説明 |
|---|
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.
|
| 修飾子とタイプ | クラスと説明 |
|---|---|
class |
ComposableRecordReader<K extends WritableComparable<?>,V extends Writable>
Additional operations required of a RecordReader to participate in a join.
|
class |
CompositeRecordReader<K extends WritableComparable<?>,V extends Writable,X extends Writable>
A RecordReader that can effect joins of RecordReaders sharing a common key
type and partitioning.
|
class |
InnerJoinRecordReader<K extends WritableComparable<?>>
Full inner join.
|
class |
JoinRecordReader<K extends WritableComparable<?>>
Base class for Composite joins returning Tuples of arbitrary Writables.
|
class |
MultiFilterRecordReader<K extends WritableComparable<?>,V extends Writable>
Base class for Composite join returning values derived from multiple
sources, but generally not tuples.
|
class |
OuterJoinRecordReader<K extends WritableComparable<?>>
Full outer join.
|
class |
OverrideRecordReader<K extends WritableComparable<?>,V extends Writable>
Prefer the "rightmost" data source for this key.
|
class |
WrappedRecordReader<K extends WritableComparable<?>,U extends Writable>
Proxy class for a RecordReader participating in the join framework.
|
| 修飾子とタイプ | メソッドと説明 |
|---|---|
RecordReader<K,TupleWritable> |
CompositeInputFormat.createRecordReader(InputSplit split,
TaskAttemptContext taskContext)
Construct a CompositeRecordReader for the children of this InputFormat
as defined in the init expression.
|
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