DatabaseStartupValidator (Spring Framework 5.2.12.RELEASE API)

java.lang.Object
- org.springframework.jdbc.support.DatabaseStartupValidator

所有已实现的接口:
InitializingBean
```
public class DatabaseStartupValidator
extends Object
implements InitializingBean
```
Bean that checks if a database has already started up. To be referenced via "depends-on" from beans that depend on database startup, like a Hibernate SessionFactory or custom data access objects that access a DataSource directly.
Useful to defer application initialization until a database has started up. Particularly appropriate for waiting on a slowly starting Oracle database.
从以下版本开始:
18.12.2003
作者:
Juergen Hoeller

字段概要
字段
修饰符和类型字段说明
static int DEFAULT_INTERVAL
The default interval.
static int DEFAULT_TIMEOUT
The default timeout.
protected Log logger

构造器概要
构造器
构造器说明
DatabaseStartupValidator()

方法概要

所有方法实例方法具体方法
修饰符和类型	方法	说明
`void`	`afterPropertiesSet()`	Check whether the validation query can be executed on a Connection from the specified DataSource, with the specified interval between checks, until the specified timeout.
`void`	`setDataSource(DataSource dataSource)`	Set the DataSource to validate.
`void`	`setInterval(int interval)`	Set the interval between validation runs (in seconds).
`void`	`setTimeout(int timeout)`	Set the timeout (in seconds) after which a fatal exception will be thrown.
`void`	`setValidationQuery(String validationQuery)`	Set the SQL query string to use for validation.

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

- 字段详细资料
  - DEFAULT_INTERVAL
```
public static final int DEFAULT_INTERVAL
```
    The default interval.
    另请参阅:
    常量字段值
  - DEFAULT_TIMEOUT
```
public static final int DEFAULT_TIMEOUT
```
    The default timeout.
    另请参阅:
    常量字段值
  - logger
```
protected final Log logger
```
- 构造器详细资料
  - DatabaseStartupValidator
```
public DatabaseStartupValidator()
```
- 方法详细资料
  - setDataSource
```
public void setDataSource(DataSource dataSource)
```
    Set the DataSource to validate.
  - setValidationQuery
```
public void setValidationQuery(String validationQuery)
```
    Set the SQL query string to use for validation.
  - setInterval
```
public void setInterval(int interval)
```
    Set the interval between validation runs (in seconds). Default is 1.
  - setTimeout
```
public void setTimeout(int timeout)
```
    Set the timeout (in seconds) after which a fatal exception will be thrown. Default is 60.
  - afterPropertiesSet
```
public void afterPropertiesSet()
```
    Check whether the validation query can be executed on a Connection from the specified DataSource, with the specified interval between checks, until the specified timeout.
    指定者:
    afterPropertiesSet 在接口中 InitializingBean