org.jfantasy.framework.dao.mybatis.keygen.service

Class SequenceService

java.lang.Object

org.jfantasy.framework.dao.mybatis.keygen.service.SequenceService

@Service
public class SequenceService
extends java.lang.Object

Constructor Summary

Constructors

Constructor and Description
SequenceService()

Method Summary

Modifier and Type	Method and Description
boolean	exists(java.lang.String key) 判断序列是否存在
long	newkey(java.lang.String key, long poolSize) 创建一个新的序列
long	next(java.lang.String key, long poolSize) 获取序列的下一个值

Methods inherited from class java.lang.Object

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

Constructor Detail

SequenceService

public SequenceService()

Method Detail

exists

@Transactional(value="dataSourceTransactionManager",
               rollbackFor=java.lang.Exception.class,
               propagation=REQUIRES_NEW)
public boolean exists(java.lang.String key)

判断序列是否存在

Parameters:

key - 序列名称

Returns:

boolean

next

@Transactional(value="dataSourceTransactionManager",
               rollbackFor=java.lang.Exception.class,
               propagation=REQUIRES_NEW)
public long next(java.lang.String key,
                                                                                                                                                                     long poolSize)

获取序列的下一个值

Parameters:

key - 序列名称

poolSize - 序列增长值

Returns:

long

newkey

@Transactional(value="dataSourceTransactionManager",
               rollbackFor=java.lang.Exception.class,
               propagation=REQUIRES_NEW)
public long newkey(java.lang.String key,
                                                                                                                                                                       long poolSize)

创建一个新的序列

Parameters:

key - 序列名称

poolSize - 序列增长值

Returns:

long