DatabaseStartupValidator (Spring Framework 4.3.30.RELEASE API)

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

All Implemented Interfaces:
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.
Since:
18.12.2003
Author:
Juergen Hoeller

Field Summary
Fields
Modifier and Type Field Description
static int DEFAULT_INTERVAL
static int DEFAULT_TIMEOUT
protected Log logger

Constructor Summary
Constructors
Constructor Description
DatabaseStartupValidator()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`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.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - DEFAULT_INTERVAL
```
public static final int DEFAULT_INTERVAL
```
    See Also:
    Constant Field Values
  - DEFAULT_TIMEOUT
```
public static final int DEFAULT_TIMEOUT
```
    See Also:
    Constant Field Values
  - logger
```
protected final Log logger
```
- Constructor Detail
  - DatabaseStartupValidator
```
public DatabaseStartupValidator()
```
- Method Detail
  - 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.
    Specified by:
    afterPropertiesSet in interface InitializingBean