com.baidu.fsg.uid.impl

类 CachedUidGenerator

java.lang.Object

com.baidu.fsg.uid.impl.DefaultUidGenerator

com.baidu.fsg.uid.impl.CachedUidGenerator

所有已实现的接口:

UidGenerator, org.springframework.beans.factory.DisposableBean, org.springframework.beans.factory.InitializingBean

public class CachedUidGenerator
extends DefaultUidGenerator
implements org.springframework.beans.factory.DisposableBean

Represents a cached implementation of UidGenerator extends from DefaultUidGenerator, based on a lock free RingBuffer

The spring properties you can specified as below:

boostPower: RingBuffer size boost for a power of 2, Sample: boostPower is 3, it means the buffer size will be (BitsAllocator.getMaxSequence() + 1) << boostPower, Default as paddingFactor: Represents a percent value of (0 - 100). When the count of rest available UIDs reach the threshold, it will trigger padding buffer. Default asRingBuffer.DEFAULT_PADDING_PERCENT Sample: paddingFactor=20, bufferSize=1000 -> threshold=1000 * 20 /100, padding buffer will be triggered when tail-cursorscheduleInterval: Padding buffer in a schedule, specify padding buffer interval, Unit as second rejectedPutBufferHandler: Policy for rejected put buffer. Default as discard put request, just do logging rejectedTakeBufferHandler: Policy for rejected take buffer. Default as throwing up an exception

作者:

yutianbao