Package org.qiunet.utils.args

Class ArgumentKey<T>

java.lang.Object

org.qiunet.utils.args.ArgumentKey<T>

public final class ArgumentKey<T>
extends Object

Argument 的key

Author:

qiunet 2020-10-16 16:38

Constructor Summary

Constructors

Constructor	Description
ArgumentKey()
ArgumentKey(Supplier<T> defaultValGetter)
ArgumentKey(T defaultVal)

Method Summary

Modifier and Type	Method	Description
<Container extends IArgsContainer> void	clear(Container container)	清除key
<Container extends IArgsContainer> boolean	compareAndSet(Container container, T oldVal, T newVal)	compare and set value
<Container extends IArgsContainer> T	computeIfAbsent(Container container, Supplier<T> newVal)	如果没有数据, 就使用指定的Supplier 初始化数据
<Container extends IArgsContainer> T	get(Container container)	从container get 到对应的值.
<Container extends IArgsContainer> boolean	isNull(Container container)	容器中指定的key是否有值.
<Container extends IArgsContainer> boolean	notNull(Container container)	容器中指定的key是否有值.
<Container extends IArgsContainer> void	remove(Container container)	删除 key
<Container extends IArgsContainer> T	set(Container container, T newVal)	设置指定的值到容器.

Methods inherited from class java.lang.Object

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

Constructor Details

ArgumentKey

public ArgumentKey()

ArgumentKey

public ArgumentKey(T defaultVal)

ArgumentKey

public ArgumentKey(Supplier<T> defaultValGetter)

Method Details

get

public <Container extends IArgsContainer> T get(Container container)

从container get 到对应的值.

Type Parameters:

Container - 容器类

Parameters:

container - 容器对象

Returns:

对应的值

set

public <Container extends IArgsContainer> T set(Container container,
 T newVal)

设置指定的值到容器.

Type Parameters:

Container - 容器类

Parameters:

container - 容器对象

newVal - 值

Returns:

返回旧值

isNull

public <Container extends IArgsContainer> boolean isNull(Container container)

容器中指定的key是否有值.

Type Parameters:

Container - 容器类

Parameters:

container - 容器对象

Returns:

true 空

notNull

public <Container extends IArgsContainer> boolean notNull(Container container)

容器中指定的key是否有值.

Type Parameters:

Container - 容器类

Parameters:

container - 容器对象

Returns:

true 非空

compareAndSet

public <Container extends IArgsContainer> boolean compareAndSet(Container container,
 T oldVal,
 T newVal)

compare and set value

Type Parameters:

Container - 容器类

Parameters:

container - 容器对象

oldVal - 旧值

newVal - 新值

Returns:

cas的结果 true 为成功.

computeIfAbsent

public <Container extends IArgsContainer> T computeIfAbsent(Container container,
 Supplier<T> newVal)

如果没有数据, 就使用指定的Supplier 初始化数据

Type Parameters:

Container - 容器类型

Parameters:

container - 容器对象

newVal - 构造初始值的 Supplier

Returns:

现有的. 或者新的值

remove

public <Container extends IArgsContainer> void remove(Container container)

删除 key

Type Parameters:

Container - 容器类型

Parameters:

container - 容器对象

clear

public <Container extends IArgsContainer> void clear(Container container)

清除key

Type Parameters:

Container - 容器类型

Parameters:

container - 容器对象