io.shardingsphere.core.constant

枚举 ShardingPropertiesConstant

java.lang.Object

java.lang.Enum<ShardingPropertiesConstant>

io.shardingsphere.core.constant.ShardingPropertiesConstant

所有已实现的接口:

Serializable, Comparable<ShardingPropertiesConstant>

public enum ShardingPropertiesConstant
extends Enum<ShardingPropertiesConstant>

Sharding properties constant.

作者:

gaohongtao, caohao

枚举常量概要

枚举常量

枚举常量和说明
ACCEPTOR_SIZE Worker group or user group thread max size.
CONNECTION_MODE Connection mode of connected to databases.
EXECUTOR_SIZE Worker thread max size.
PROXY_BACKEND_CONNECTION_TIMEOUT_SECONDS
PROXY_BACKEND_MAX_CONNECTIONS
PROXY_BACKEND_USE_NIO
PROXY_TRANSACTION_MODE
SQL_SHOW Enable or Disable to show SQL details.

方法概要

限定符和类型	方法和说明
static ShardingPropertiesConstant	findByKey(String key) Find value via property key.
static ShardingPropertiesConstant	valueOf(String name) 返回带有指定名称的该类型的枚举常量。
static ShardingPropertiesConstant[]	values() 按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。

从类继承的方法 java.lang.Enum

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

从类继承的方法 java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

枚举常量详细资料

SQL_SHOW

public static final ShardingPropertiesConstant SQL_SHOW

Enable or Disable to show SQL details.

Print SQL details can help developers debug easier. The details includes: logic SQL, parse context and rewrote actual SQL list. Enable this property will log into log topic: Sharding-Sphere-SQL, log level is INFO. Default: false

ACCEPTOR_SIZE

public static final ShardingPropertiesConstant ACCEPTOR_SIZE

Worker group or user group thread max size.

Worker group accept tcp connection. User group accept MySQL command. Default: CPU cores * 2.

EXECUTOR_SIZE

public static final ShardingPropertiesConstant EXECUTOR_SIZE

Worker thread max size.

Execute SQL Statement and PrepareStatement will use this thread pool. One sharding data source will use a independent thread pool, it does not share thread pool even different data source in same JVM. Default: infinite.

CONNECTION_MODE

public static final ShardingPropertiesConstant CONNECTION_MODE

Connection mode of connected to databases.

MEMORY_STRICTLY: Sharding-Sphere holds as many connections as the count of actual tables routed in a database. The benefit of this approach is saving memory for Proxy by Stream ResultSet.

CONNECTION_STRICTLY: harding-Sphere will release connections after get the overall rows from the ResultSet. Meanwhile, the cost of the memory will be increased.

PROXY_TRANSACTION_MODE

public static final ShardingPropertiesConstant PROXY_TRANSACTION_MODE

PROXY_BACKEND_USE_NIO

public static final ShardingPropertiesConstant PROXY_BACKEND_USE_NIO

PROXY_BACKEND_MAX_CONNECTIONS

public static final ShardingPropertiesConstant PROXY_BACKEND_MAX_CONNECTIONS

PROXY_BACKEND_CONNECTION_TIMEOUT_SECONDS

public static final ShardingPropertiesConstant PROXY_BACKEND_CONNECTION_TIMEOUT_SECONDS

方法详细资料

values

public static ShardingPropertiesConstant[] values()

按照声明该枚举类型的常量的顺序, 返回 包含这些常量的数组。该方法可用于迭代 常量, 如下所示:

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

返回:

按照声明该枚举类型的常量的顺序返回的包含这些常量的数组

valueOf

public static ShardingPropertiesConstant valueOf(String name)

返回带有指定名称的该类型的枚举常量。 字符串必须与用于声明该类型的枚举常量的 标识符完全匹配。(不允许有多余 的空格字符。)

参数:

name - 要返回的枚举常量的名称。

返回:

返回带有指定名称的枚举常量

抛出:

IllegalArgumentException - 如果该枚举类型没有带有指定名称的常量

NullPointerException - 如果参数为空值

findByKey

public static ShardingPropertiesConstant findByKey(String key)

Find value via property key.

参数:

key - property key

返回:

value enum, return null if not found