com.alibaba.nacos.api.selector

接口 Selector<R,C,E>

所有超级接口:

Serializable

所有已知实现类:

AbstractCmdbSelector

public interface Selector<R,C,E>
extends Serializable

The Selector mainly work on the logic of parse and select. parse(Object) allow user accept the condition which provided by Nacos to build the select(Object) judge logic. select(Object) allow user to execute the logic to get the target result they want. getType() will return the type. getContextType() will return the context type which used by select(Object).

Now, Nacos only provide the AbstractCmdbSelector for user to implement their own select logic. Other type is waiting.

作者:

chenglu

方法概要

限定符和类型	方法和说明
String	getContextType() Get the select context which used by select(Object).
String	getType() Get the selector type.
Selector<R,C,E>	parse(E expression) parse the selector, build the inner info which used by select(Object).
R	select(C context) select the target result.

方法详细资料

parse

Selector<R,C,E> parse(E expression)
               throws NacosException

parse the selector, build the inner info which used by select(Object).

参数:

expression - expression.

返回:

selector.

抛出:

NacosException - parse failed exception.

select

R select(C context)

select the target result.

参数:

context - selector context.

返回:

select result.

getType

String getType()

Get the selector type.

返回:

selector type.

getContextType

String getContextType()

Get the select context which used by select(Object).

返回:

selector context type.