me.ahoo.cosid.segment

Class SegmentChainId

java.lang.Object

me.ahoo.cosid.segment.SegmentChainId

All Implemented Interfaces:

IdGenerator, SegmentId, StringIdGenerator

public class SegmentChainId
extends java.lang.Object
implements SegmentId

Segment chain algorithm ID generator.

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
class	SegmentChainId.PrefetchJob

Field Summary

Fields

Modifier and Type	Field and Description
static int	DEFAULT_SAFE_DISTANCE

Fields inherited from interface me.ahoo.cosid.segment.SegmentId

ONE_STEP

Constructor Summary

Constructors

Constructor and Description
SegmentChainId(IdSegmentDistributor maxIdDistributor)
SegmentChainId(long idSegmentTtl, int safeDistance, IdSegmentDistributor maxIdDistributor, PrefetchWorkerExecutorService prefetchWorkerExecutorService)

Method Summary

Modifier and Type	Method and Description
long	generate() Generate distributed ID.
IdSegmentChain	getHead()

Methods inherited from class java.lang.Object

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

Methods inherited from interface me.ahoo.cosid.IdGenerator

generateAsString, idConverter

Field Detail

DEFAULT_SAFE_DISTANCE

public static final int DEFAULT_SAFE_DISTANCE

See Also:

Constant Field Values

Constructor Detail

SegmentChainId

public SegmentChainId(IdSegmentDistributor maxIdDistributor)

SegmentChainId

public SegmentChainId(long idSegmentTtl,
                      int safeDistance,
                      IdSegmentDistributor maxIdDistributor,
                      PrefetchWorkerExecutorService prefetchWorkerExecutorService)

Method Detail

getHead

public IdSegmentChain getHead()

generate

public long generate()

Description copied from interface: IdGenerator

Generate distributed ID.

Specified by:

generate in interface IdGenerator

Returns:

generated distributed ID