org.apache.drill.exec.physical.impl

Class WriterRecordBatch

java.lang.Object

org.apache.drill.exec.record.AbstractRecordBatch<Writer>

org.apache.drill.exec.physical.impl.WriterRecordBatch

All Implemented Interfaces:

AutoCloseable, Iterable<VectorWrapper<?>>, CloseableRecordBatch, RecordBatch, VectorAccessible

public class WriterRecordBatch
extends AbstractRecordBatch<Writer>

Write the RecordBatch to the given RecordWriter.

Nested Class Summary

Nested classes/interfaces inherited from class org.apache.drill.exec.record.AbstractRecordBatch

AbstractRecordBatch.BatchState

Nested classes/interfaces inherited from interface org.apache.drill.exec.record.RecordBatch

RecordBatch.IterOutcome

Field Summary

Fields inherited from class org.apache.drill.exec.record.AbstractRecordBatch

batchStatsContext, container, context, oContext, popConfig, state, stats, unionTypeEnabled

Fields inherited from interface org.apache.drill.exec.record.RecordBatch

MAX_BATCH_ROW_COUNT

Constructor Summary

Constructors

Constructor and Description
WriterRecordBatch(Writer writer, RecordBatch incoming, FragmentContext context, RecordWriter recordWriter)

Method Summary

Modifier and Type	Method and Description
protected void	cancelIncoming()
void	close()
void	dump() Perform dump of this batch's state to logs.
int	getRecordCount() Get the number of records.
BatchSchema	getSchema() Gets the current schema of this record batch.
RecordBatch.IterOutcome	innerNext()
protected void	setupNewSchema()

Methods inherited from class org.apache.drill.exec.record.AbstractRecordBatch

buildSchema, cancel, checkContinue, getContainer, getContext, getOutgoingContainer, getPopConfig, getRecordBatchStatsContext, getSelectionVector2, getSelectionVector4, getValueAccessorById, getValueVectorId, getWritableBatch, isRecordBatchStatsLoggingEnabled, iterator, next, next, next, schemaChangeException, schemaChangeException

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

WriterRecordBatch

public WriterRecordBatch(Writer writer,
                         RecordBatch incoming,
                         FragmentContext context,
                         RecordWriter recordWriter)
                  throws OutOfMemoryException

Throws:

OutOfMemoryException

Method Detail

getRecordCount

public int getRecordCount()

Description copied from interface: VectorAccessible

Get the number of records.

Returns:

number of records

cancelIncoming

protected void cancelIncoming()

Specified by:

cancelIncoming in class AbstractRecordBatch<Writer>

getSchema

public BatchSchema getSchema()

Description copied from interface: RecordBatch

Gets the current schema of this record batch.

May be called only when the most recent call to RecordBatch.next(), if any, returned RecordBatch.IterOutcome.OK_NEW_SCHEMA or RecordBatch.IterOutcome.OK.

The schema changes when and only when RecordBatch.next() returns RecordBatch.IterOutcome.OK_NEW_SCHEMA.

Specified by:

getSchema in interface RecordBatch

Specified by:

getSchema in interface VectorAccessible

Overrides:

getSchema in class AbstractRecordBatch<Writer>

Returns:

schema of the current batch

innerNext

public RecordBatch.IterOutcome innerNext()

Specified by:

innerNext in class AbstractRecordBatch<Writer>

setupNewSchema

protected void setupNewSchema()

close

public void close()

Specified by:

close in interface AutoCloseable

Overrides:

close in class AbstractRecordBatch<Writer>

dump

public void dump()

Description copied from interface: RecordBatch

Perform dump of this batch's state to logs.