程序包 org.apache.dubbo.common.config.configcenter

类 AbstractDynamicConfiguration

java.lang.Object

org.apache.dubbo.common.config.configcenter.AbstractDynamicConfiguration

所有已实现的接口:

AutoCloseable, DynamicConfiguration, Configuration

直接已知子类:

TreePathDynamicConfiguration

public abstract class AbstractDynamicConfiguration
extends Object
implements DynamicConfiguration

The abstract implementation of DynamicConfiguration

从以下版本开始:

2.7.5

字段概要

字段

修饰符和类型	字段	说明
static long	DEFAULT_THREAD_POOL_KEEP_ALIVE_TIME	Default keep alive time in milliseconds for threads in ThreadPoolExecutor is 1 minute( 60 * 1000 ms)
static String	DEFAULT_THREAD_POOL_PREFIX
static int	DEFAULT_THREAD_POOL_SIZE
static String	GROUP_PARAM_NAME	The parameter name of group for config-center
static String	PARAM_NAME_PREFIX
static String	THREAD_POOL_KEEP_ALIVE_TIME_PARAM_NAME	The keep alive time in milliseconds for threads in ThreadPoolExecutor
static String	THREAD_POOL_PREFIX_PARAM_NAME
static String	THREAD_POOL_SIZE_PARAM_NAME
static String	TIMEOUT_PARAM_NAME	The parameter name of timeout for config-center

从接口继承的字段 org.apache.dubbo.common.config.configcenter.DynamicConfiguration

DEFAULT_GROUP

构造器概要

构造器

构造器	说明
AbstractDynamicConfiguration(String threadPoolPrefixName, int threadPoolSize, long keepAliveTime, String group, long timeout)
AbstractDynamicConfiguration(URL url)

方法概要

修饰符和类型	方法	说明
void	addListener(String key, String group, ConfigurationListener listener)	Register a configuration listener for a specified key The listener only works for service governance purpose, so the target group would always be the value user specifies at startup or 'dubbo' by default.
void	close()	Close the configuration
String	getConfig(String key, String group, long timeout)	Get the configuration mapped to the given key and the given group.
String	getDefaultGroup()	Get the default group for the operations
long	getDefaultTimeout()	Get the default timeout for the operations in milliseconds
Object	getInternalProperty(String key)
boolean	removeConfig(String key, String group)
void	removeListener(String key, String group, ConfigurationListener listener)	Stops one listener from listening to value changes in the specified key.

从类继承的方法 java.lang.Object

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

从接口继承的方法 org.apache.dubbo.common.config.Configuration

containsKey, convert, getBoolean, getBoolean, getBoolean, getInt, getInt, getInteger, getProperty, getProperty, getString, getString

从接口继承的方法 org.apache.dubbo.common.config.configcenter.DynamicConfiguration

addListener, getConfig, getConfigKeys, getProperties, getProperties, publishConfig, publishConfig, removeListener

字段详细资料

PARAM_NAME_PREFIX

public static final String PARAM_NAME_PREFIX

另请参阅:

常量字段值

THREAD_POOL_PREFIX_PARAM_NAME

public static final String THREAD_POOL_PREFIX_PARAM_NAME

另请参阅:

常量字段值

DEFAULT_THREAD_POOL_PREFIX

public static final String DEFAULT_THREAD_POOL_PREFIX

另请参阅:

常量字段值

THREAD_POOL_SIZE_PARAM_NAME

public static final String THREAD_POOL_SIZE_PARAM_NAME

另请参阅:

常量字段值

THREAD_POOL_KEEP_ALIVE_TIME_PARAM_NAME

public static final String THREAD_POOL_KEEP_ALIVE_TIME_PARAM_NAME

The keep alive time in milliseconds for threads in ThreadPoolExecutor

另请参阅:

常量字段值

GROUP_PARAM_NAME

public static final String GROUP_PARAM_NAME

The parameter name of group for config-center

从以下版本开始:

2.7.8

另请参阅:

常量字段值

TIMEOUT_PARAM_NAME

public static final String TIMEOUT_PARAM_NAME

The parameter name of timeout for config-center

从以下版本开始:

2.7.8

另请参阅:

常量字段值

DEFAULT_THREAD_POOL_SIZE

public static final int DEFAULT_THREAD_POOL_SIZE

另请参阅:

常量字段值

DEFAULT_THREAD_POOL_KEEP_ALIVE_TIME

public static final long DEFAULT_THREAD_POOL_KEEP_ALIVE_TIME

Default keep alive time in milliseconds for threads in ThreadPoolExecutor is 1 minute( 60 * 1000 ms)

构造器详细资料

AbstractDynamicConfiguration

public AbstractDynamicConfiguration(URL url)

AbstractDynamicConfiguration

public AbstractDynamicConfiguration(String threadPoolPrefixName,
                                    int threadPoolSize,
                                    long keepAliveTime,
                                    String group,
                                    long timeout)

方法详细资料

addListener

public void addListener(String key,
                        String group,
                        ConfigurationListener listener)

从接口复制的说明: DynamicConfiguration

Register a configuration listener for a specified key The listener only works for service governance purpose, so the target group would always be the value user specifies at startup or 'dubbo' by default. This method will only register listener, which means it will not trigger a notification that contains the current value.

指定者:

addListener 在接口中 DynamicConfiguration

参数:

key - the key to represent a configuration

group - the group where the key belongs to

listener - configuration listener

removeListener

public void removeListener(String key,
                           String group,
                           ConfigurationListener listener)

从接口复制的说明: DynamicConfiguration

Stops one listener from listening to value changes in the specified key.

指定者:

removeListener 在接口中 DynamicConfiguration

参数:

key - the key to represent a configuration

group - the group where the key belongs to

listener - configuration listener

getConfig

public final String getConfig(String key,
                              String group,
                              long timeout)
                       throws IllegalStateException

从接口复制的说明: DynamicConfiguration

Get the configuration mapped to the given key and the given group. If the configuration fails to fetch after timeout exceeds, IllegalStateException will be thrown.

指定者:

getConfig 在接口中 DynamicConfiguration

参数:

key - the key to represent a configuration

group - the group where the key belongs to

timeout - timeout value for fetching the target config

返回:

target configuration mapped to the given key and the given group, IllegalStateException will be thrown if timeout exceeds.

抛出:

IllegalStateException

getInternalProperty

public Object getInternalProperty(String key)

指定者:

getInternalProperty 在接口中 Configuration

close

public final void close()
                 throws Exception

从接口复制的说明: DynamicConfiguration

Close the configuration

指定者:

close 在接口中 AutoCloseable

指定者:

close 在接口中 DynamicConfiguration

抛出:

Exception

removeConfig

public boolean removeConfig(String key,
                            String group)

指定者:

removeConfig 在接口中 DynamicConfiguration

参数:

key - the key to represent a configuration

group - the group where the key belongs to

返回:

true if success, or false

getDefaultGroup

public String getDefaultGroup()

从接口复制的说明: DynamicConfiguration

Get the default group for the operations

指定者:

getDefaultGroup 在接口中 DynamicConfiguration

返回:

the default group

从以下版本开始:

2.7.8

getDefaultTimeout

public long getDefaultTimeout()

从接口复制的说明: DynamicConfiguration

Get the default timeout for the operations in milliseconds

指定者:

getDefaultTimeout 在接口中 DynamicConfiguration

返回:

the default timeout

从以下版本开始:

2.7.8