AbstractSequenceMaxValueIncrementer (Spring Framework 5.2.12.RELEASE API)

java.lang.Object
- org.springframework.jdbc.support.incrementer.AbstractDataFieldMaxValueIncrementer
- - org.springframework.jdbc.support.incrementer.AbstractSequenceMaxValueIncrementer

所有已实现的接口:
InitializingBean, DataFieldMaxValueIncrementer
直接已知子类:
Db2LuwMaxValueIncrementer, Db2MainframeMaxValueIncrementer, DB2MainframeSequenceMaxValueIncrementer, H2SequenceMaxValueIncrementer, HanaSequenceMaxValueIncrementer, HsqlSequenceMaxValueIncrementer, OracleSequenceMaxValueIncrementer, PostgresSequenceMaxValueIncrementer
```
public abstract class AbstractSequenceMaxValueIncrementer
extends AbstractDataFieldMaxValueIncrementer
```
Abstract base class for DataFieldMaxValueIncrementer implementations that use a database sequence. Subclasses need to provide the database-specific SQL to use.
从以下版本开始:
26.02.2004
作者:
Juergen Hoeller
另请参阅:
getSequenceQuery()

字段概要
- 从类继承的字段 org.springframework.jdbc.support.incrementer.AbstractDataFieldMaxValueIncrementer
  paddingLength

构造器概要

构造器
构造器	说明
`AbstractSequenceMaxValueIncrementer()`	Default constructor for bean property style usage.
`AbstractSequenceMaxValueIncrementer(DataSource dataSource, String incrementerName)`	Convenience constructor.

方法概要

所有方法实例方法抽象方法具体方法
修饰符和类型	方法	说明
`protected long`	`getNextKey()`	Executes the SQL as specified by `getSequenceQuery()`.
`protected abstract String`	`getSequenceQuery()`	Return the database-specific query to use for retrieving a sequence value.

从类继承的方法 org.springframework.jdbc.support.incrementer.AbstractDataFieldMaxValueIncrementer
afterPropertiesSet, getDataSource, getIncrementerName, getPaddingLength, nextIntValue, nextLongValue, nextStringValue, setDataSource, setIncrementerName, setPaddingLength

从类继承的方法 java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- 构造器详细资料
  - AbstractSequenceMaxValueIncrementer
```
public AbstractSequenceMaxValueIncrementer()
```
    Default constructor for bean property style usage.
    另请参阅:
    AbstractDataFieldMaxValueIncrementer.setDataSource(javax.sql.DataSource), AbstractDataFieldMaxValueIncrementer.setIncrementerName(java.lang.String)
  - AbstractSequenceMaxValueIncrementer
```
public AbstractSequenceMaxValueIncrementer(DataSource dataSource,
                                           String incrementerName)
```
    Convenience constructor.
    参数:
    dataSource - the DataSource to use
    incrementerName - the name of the sequence/table to use
- 方法详细资料
  - getNextKey
```
protected long getNextKey()
                   throws DataAccessException
```
    Executes the SQL as specified by getSequenceQuery().
    指定者:
    getNextKey 在类中 AbstractDataFieldMaxValueIncrementer
    返回:
    the key to use as a long. It will eventually be converted later in another format by the public concrete methods of this class.
    抛出:
    DataAccessException
  - getSequenceQuery
```
protected abstract String getSequenceQuery()
```
    Return the database-specific query to use for retrieving a sequence value.
    The provided SQL is supposed to result in a single row with a single column that allows for extracting a long value.