程序包 org.springframework.boot.jdbc.metadata

类 AbstractDataSourcePoolMetadata<T extends DataSource>

java.lang.Object

org.springframework.boot.jdbc.metadata.AbstractDataSourcePoolMetadata<T>

类型参数:

T - the data source type

所有已实现的接口:

DataSourcePoolMetadata

直接已知子类:

CommonsDbcp2DataSourcePoolMetadata, HikariDataSourcePoolMetadata, OracleUcpDataSourcePoolMetadata, TomcatDataSourcePoolMetadata

public abstract class AbstractDataSourcePoolMetadata<T extends DataSource>
extends Object
implements DataSourcePoolMetadata

A base DataSourcePoolMetadata implementation.

从以下版本开始:

2.0.0

作者:

Stephane Nicoll

构造器概要

构造器

限定符	构造器	说明
protected	AbstractDataSourcePoolMetadata(T dataSource)	Create an instance with the data source to use.

方法概要

修饰符和类型	方法	说明
protected final T	getDataSource()
Float	getUsage()	Return the usage of the pool as value between 0 and 1 (or -1 if the pool is not limited).

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.springframework.boot.jdbc.metadata.DataSourcePoolMetadata

getActive, getDefaultAutoCommit, getIdle, getMax, getMin, getValidationQuery

构造器详细资料

AbstractDataSourcePoolMetadata

protected AbstractDataSourcePoolMetadata(T dataSource)

Create an instance with the data source to use.

参数:

dataSource - the data source

方法详细资料

getUsage

public Float getUsage()

从接口复制的说明: DataSourcePoolMetadata

Return the usage of the pool as value between 0 and 1 (or -1 if the pool is not limited).

• 1 means that the maximum number of connections have been allocated
• 0 means that no connection is currently active
• -1 means there is not limit to the number of connections that can be allocated

This may also return null if the data source does not provide the necessary information to compute the poll usage.

指定者:

getUsage 在接口中 DataSourcePoolMetadata

返回:

the usage value or null

getDataSource

protected final T getDataSource()