org.apache.hadoop.hbase.regionserver

Class SegmentFactory

java.lang.Object

org.apache.hadoop.hbase.regionserver.SegmentFactory

@InterfaceAudience.Private
public final class SegmentFactory
extends Object

A singleton store segment factory. Generate concrete store segments.

Field Summary

Fields

Modifier and Type	Field and Description
private static SegmentFactory	instance

Constructor Summary

Constructors

Modifier	Constructor and Description
private	SegmentFactory()

Method Summary

Modifier and Type	Method and Description
CompositeImmutableSegment	createCompositeImmutableSegment(CellComparator comparator, List<ImmutableSegment> segments)
ImmutableSegment	createImmutableSegment(CellComparator comparator) create empty immutable segment for initializations This ImmutableSegment is used as a place holder for snapshot in Memstore.
private ImmutableSegment	createImmutableSegment(org.apache.hadoop.conf.Configuration conf, CellComparator comparator, MemStoreSegmentsIterator iterator, MemStoreLAB memStoreLAB, int numOfCells, MemStoreCompactionStrategy.Action action, CompactingMemStore.IndexType idxType)
ImmutableSegment	createImmutableSegment(MutableSegment segment, MemStoreSizing memstoreSizing)
ImmutableSegment	createImmutableSegmentByCompaction(org.apache.hadoop.conf.Configuration conf, CellComparator comparator, MemStoreSegmentsIterator iterator, int numOfCells, CompactingMemStore.IndexType idxType, MemStoreCompactionStrategy.Action action)
ImmutableSegment	createImmutableSegmentByFlattening(CSLMImmutableSegment segment, CompactingMemStore.IndexType idxType, MemStoreSizing memstoreSizing, MemStoreCompactionStrategy.Action action)
ImmutableSegment	createImmutableSegmentByMerge(org.apache.hadoop.conf.Configuration conf, CellComparator comparator, MemStoreSegmentsIterator iterator, int numOfCells, List<ImmutableSegment> segments, CompactingMemStore.IndexType idxType, MemStoreCompactionStrategy.Action action)
MutableSegment	createMutableSegment(org.apache.hadoop.conf.Configuration conf, CellComparator comparator, MemStoreSizing memstoreSizing)
private MutableSegment	generateMutableSegment(org.apache.hadoop.conf.Configuration conf, CellComparator comparator, MemStoreLAB memStoreLAB, MemStoreSizing memstoreSizing)
private MemStoreLAB	getMergedMemStoreLAB(org.apache.hadoop.conf.Configuration conf, List<ImmutableSegment> segments)
static SegmentFactory	instance()

Methods inherited from class java.lang.Object

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

Field Detail

instance

private static SegmentFactory instance

Constructor Detail

SegmentFactory

private SegmentFactory()

Method Detail

instance

public static SegmentFactory instance()

createCompositeImmutableSegment

public CompositeImmutableSegment createCompositeImmutableSegment(CellComparator comparator,
                                                                 List<ImmutableSegment> segments)

createImmutableSegmentByCompaction

public ImmutableSegment createImmutableSegmentByCompaction(org.apache.hadoop.conf.Configuration conf,
                                                           CellComparator comparator,
                                                           MemStoreSegmentsIterator iterator,
                                                           int numOfCells,
                                                           CompactingMemStore.IndexType idxType,
                                                           MemStoreCompactionStrategy.Action action)
                                                    throws IOException

Throws:

IOException

createImmutableSegment

public ImmutableSegment createImmutableSegment(CellComparator comparator)

create empty immutable segment for initializations This ImmutableSegment is used as a place holder for snapshot in Memstore. It won't flush later, So it is not necessary to record the initial size for it.

Parameters:

comparator - comparator

Returns:

ImmutableSegment

createImmutableSegment

public ImmutableSegment createImmutableSegment(MutableSegment segment,
                                               MemStoreSizing memstoreSizing)

createMutableSegment

public MutableSegment createMutableSegment(org.apache.hadoop.conf.Configuration conf,
                                           CellComparator comparator,
                                           MemStoreSizing memstoreSizing)

createImmutableSegmentByMerge

public ImmutableSegment createImmutableSegmentByMerge(org.apache.hadoop.conf.Configuration conf,
                                                      CellComparator comparator,
                                                      MemStoreSegmentsIterator iterator,
                                                      int numOfCells,
                                                      List<ImmutableSegment> segments,
                                                      CompactingMemStore.IndexType idxType,
                                                      MemStoreCompactionStrategy.Action action)
                                               throws IOException

Throws:

IOException

createImmutableSegmentByFlattening

public ImmutableSegment createImmutableSegmentByFlattening(CSLMImmutableSegment segment,
                                                           CompactingMemStore.IndexType idxType,
                                                           MemStoreSizing memstoreSizing,
                                                           MemStoreCompactionStrategy.Action action)

createImmutableSegment

private ImmutableSegment createImmutableSegment(org.apache.hadoop.conf.Configuration conf,
                                                CellComparator comparator,
                                                MemStoreSegmentsIterator iterator,
                                                MemStoreLAB memStoreLAB,
                                                int numOfCells,
                                                MemStoreCompactionStrategy.Action action,
                                                CompactingMemStore.IndexType idxType)

generateMutableSegment

private MutableSegment generateMutableSegment(org.apache.hadoop.conf.Configuration conf,
                                              CellComparator comparator,
                                              MemStoreLAB memStoreLAB,
                                              MemStoreSizing memstoreSizing)

getMergedMemStoreLAB

private MemStoreLAB getMergedMemStoreLAB(org.apache.hadoop.conf.Configuration conf,
                                         List<ImmutableSegment> segments)