cn.hutool.db

Enum ThreadLocalConnection

java.lang.Object

java.lang.Enum<ThreadLocalConnection>

cn.hutool.db.ThreadLocalConnection

All Implemented Interfaces:

Serializable, Comparable<ThreadLocalConnection>

public enum ThreadLocalConnection
extends Enum<ThreadLocalConnection>

线程相关的数据库连接持有器
此对象为单例类，用于存储线程相关的Connection对象。
在多数据源情况下，由于数据源的不同，连接对象也不同，因此获取连接时需要DataSource关联获取

Author:

looly

Nested Class Summary

Nested Classes

Modifier and Type	Class and Description
static class	ThreadLocalConnection.GroupedConnection 分组连接，根据不同的分组获取对应的连接，用于多数据源情况

Enum Constant Summary

Enum Constants

Enum Constant and Description
INSTANCE

Method Summary

Modifier and Type	Method and Description
void	close(DataSource ds) 关闭数据库，并从线程池中移除
Connection	get(DataSource ds) 获取数据源对应的数据库连接
static ThreadLocalConnection	valueOf(String name) Returns the enum constant of this type with the specified name.
static ThreadLocalConnection[]	values() Returns an array containing the constants of this enum type, in the order they are declared.

Methods inherited from class java.lang.Enum

clone, compareTo, equals, finalize, getDeclaringClass, hashCode, name, ordinal, toString, valueOf

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Enum Constant Detail

INSTANCE

public static final ThreadLocalConnection INSTANCE

Method Detail

values

public static ThreadLocalConnection[] values()

Returns an array containing the constants of this enum type, in the order they are declared. This method may be used to iterate over the constants as follows:

for (ThreadLocalConnection c : ThreadLocalConnection.values())
    System.out.println(c);

Returns:

an array containing the constants of this enum type, in the order they are declared

valueOf

public static ThreadLocalConnection valueOf(String name)

Returns the enum constant of this type with the specified name. The string must match exactly an identifier used to declare an enum constant in this type. (Extraneous whitespace characters are not permitted.)

Parameters:

name - the name of the enum constant to be returned.

Returns:

the enum constant with the specified name

Throws:

IllegalArgumentException - if this enum type has no constant with the specified name

NullPointerException - if the argument is null

get

public Connection get(DataSource ds)
               throws SQLException

获取数据源对应的数据库连接

Parameters:

ds - 数据源

Returns:

Connection

Throws:

SQLException - SQL异常

close

public void close(DataSource ds)

关闭数据库，并从线程池中移除

Parameters:

ds - 数据源

Since:

4.1.7