lxm_library_java/SnowFlake-IdGenerator
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yitter
2021-03-30 11:42:23 +08:00
parent af6c0955e2
commit c08ddab813
5 changed files with 11 additions and 12 deletions
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9
Java/README.md
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@@ -8,22 +8,23 @@ JDK 1.8+
<dependency>
<groupId>com.github.yitter</groupId>
<artifactId>yitter-idgenerator</artifactId>
<version>1.0.2</version>
<version>1.0.3</version>
</dependency>
```
## <20><><EFBFBD><EFBFBD>ʾ<EFBFBD><CABE>
```
// ȫ<>ֳ<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>WorkerId<49><64>Ĭ<EFBFBD><C4AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2^16-1<><31><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʼ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><EFBFBD>ֻ<EFBFBD><EFBFBD>һ<EFBFBD>Σ<EFBFBD><EFBFBD>ұ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ã<EFBFBD>
// ȫ<>ֳ<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>WorkerId<49><64>Ĭ<EFBFBD><C4AC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>2^16-1<><31><EFBFBD><EFBFBD>ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> WorkerIdBitLength <20><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ֵ
IdGeneratorOptions options = new IdGeneratorOptions();
options.WorkerId = 1;
YitIdHelper.setIdGenerator(options);
// <20><><EFBFBD>ϳ<EFBFBD>ʼ<EFBFBD><CABC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ȫ<EFBFBD><C8AB>ֻ<EFBFBD><D6BB>һ<EFBFBD>Σ<EFBFBD><CEA3>ұ<EFBFBD><D2B1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
// <20><>ʼ<EFBFBD><CABC><EFBFBD>Ժ󣬾Ϳ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD>ĵط<EFBFBD><EFBFBD><EFBFBD><EFBFBD>÷<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ID<EFBFBD><EFBFBD>
// <20><>ʼ<EFBFBD><CABC><EFBFBD>Ժ󣬼<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ҫ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ID<EFBFBD>ĵط<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>·<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
long newId = YitIdHelper.nextId();
```
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DI<EFBFBD><EFBFBD><EFBFBD>ܼ<EFBFBD><EFBFBD>ɣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բο<EFBFBD> YitIdHelper ȥ<><C8A5><EFBFBD><EFBFBD> IdGenerator <20><><EFBFBD>󣬱<EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>**<2A><><EFBFBD><EFBFBD>**ģʽ<C4A3><CABD>
<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>DI<EFBFBD><EFBFBD><EFBFBD>ܼ<EFBFBD><EFBFBD>ɣ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>Բο<EFBFBD> YitIdHelper ȥ<><C8A5><EFBFBD><EFBFBD> IdGenerator <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʹ<EFBFBD><EFBFBD>**<2A><><EFBFBD><EFBFBD>**ģʽ<C4A3><CABD>
## options Ĭ<><C4AC>ֵ<EFBFBD><D6B5>˵<EFBFBD><CBB5>

2
Java/source/pom.xml
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@@ -6,7 +6,7 @@
<groupId>com.github.yitter</groupId>
<artifactId>yitter-idgenerator</artifactId>
<version>1.0.3-SNAPSHOT</version>
<version>1.0.4-SNAPSHOT</version>
<packaging>jar</packaging>
<name>yitter-idgenerator</name>

2
Java/source/src/main/java/com/github/yitter/contract/IdGeneratorOptions.java
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@@ -51,7 +51,7 @@ public class IdGeneratorOptions {
/**
* 最小序列数（含）
* 默认5，不小于1，不大于MaxSeqNumber
* 默认5，不小于5，不大于MaxSeqNumber
*/
public short MinSeqNumber = 5;

2
Java/source/src/main/java/com/github/yitter/core/SnowWorkerM1.java
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@@ -63,7 +63,7 @@ public class SnowWorkerM1 implements ISnowWorker {
WorkerId = options.WorkerId;
WorkerIdBitLength = options.WorkerIdBitLength == 0 ? 6 : options.WorkerIdBitLength;
SeqBitLength = options.SeqBitLength == 0 ? 6 : options.SeqBitLength;
MaxSeqNumber = options.MaxSeqNumber > 0 ? options.MaxSeqNumber : (int) Math.pow(2, SeqBitLength) - 1;
MaxSeqNumber = options.MaxSeqNumber > 0 ? options.MaxSeqNumber : (1 << SeqBitLength) - 1;
MinSeqNumber = options.MinSeqNumber;
TopOverCostCount = options.TopOverCostCount;
BaseTime = options.BaseTime != 0 ? options.BaseTime : 1582136402000L;

8
Java/source/src/main/java/com/github/yitter/idgen/DefaultIdGenerator.java
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@@ -47,17 +47,15 @@ public class DefaultIdGenerator implements IIdGenerator {
}
int maxValue = maxSeqNumber;
if (options.MinSeqNumber < 1 || options.MinSeqNumber > maxValue) {
throw new IdGeneratorException("MinSeqNumber error. (range:[1, " + maxValue + "]");
if (options.MinSeqNumber < 5 || options.MinSeqNumber > maxValue) {
throw new IdGeneratorException("MinSeqNumber error. (range:[5, " + maxValue + "]");
}
switch (options.Method) {
case 1:
_SnowWorker = new SnowWorkerM1(options);
break;
case 2:
_SnowWorker = new SnowWorkerM2(options);
break;
case 1:
default:
_SnowWorker = new SnowWorkerM1(options);
break;