cn.crane4j.core.container

类 ConstantContainer<K>

java.lang.Object

cn.crane4j.core.container.ConstantContainer<K>

类型参数:

K - key type

所有已实现的接口:

Container<K>, Container.Lifecycle

public class ConstantContainer<K>
extends Object
implements Container<K>, Container.Lifecycle

A container that stores key-value pairs.

Supports the following factory methods to create containers:

• forMap(java.lang.String, java.util.Map<K, ?>): key-value pairs in the specified map;
• forEnum(java.lang.String, java.lang.Class<T>, java.util.function.Function<? super T, ? extends K>): enumeration type, key or value is the enumeration attribute value;
• forConstantClass(java.lang.Class<?>, cn.crane4j.core.support.AnnotationFinder): static constants attribute in the specified class;

this method also supports configuration through annotations.

for performance reasons, when get data from container, it always returns all data which set in the creation time. and data will not be updated after the container is created.

作者:

huangchengxing

另请参阅:

ContainerEnum

嵌套类概要

从接口继承的嵌套类/接口 cn.crane4j.core.container.Container

Container.Lifecycle

字段概要

从接口继承的字段 cn.crane4j.core.container.Container

EMPTY_CONTAINER_NAMESPACE

构造器概要

构造器

构造器和说明
ConstantContainer()

方法概要

限定符和类型	方法和说明
void	destroy() Destroy the container
static ConstantContainer<Object>	forConstantClass(Class<?> constantClass, AnnotationFinder annotationFinder) Convert public static constants in the specified constant class to containers.
static <K> ConstantContainer<K>	forEnum(Class<? extends Enum<?>> enumType, AnnotationFinder annotationFinder, PropertyOperator propertyOperator) Create a key-value pair container based on the specified type enumeration.
static <K,T extends Enum<?>> @NonNull ConstantContainer<K>	forEnum(String namespace, Class<T> enumType, Function<? super T,? extends K> keyGetter) Create a key-value pair container based on the specified type enumeration.
static <K> ConstantContainer<K>	forMap(String namespace, Map<K,?> data) Create a key-value pair container based on the specified type enumeration.
Map<K,?>	get(Collection<K> keys) Enter a batch of key values to return data source objects grouped by key values.

从类继承的方法 java.lang.Object

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

从接口继承的方法 cn.crane4j.core.container.Container

empty, getNamespace

从接口继承的方法 cn.crane4j.core.container.Container.Lifecycle

init

构造器详细资料

ConstantContainer

public ConstantContainer()

方法详细资料

forEnum

public static <K,T extends Enum<?>> @NonNull ConstantContainer<K> forEnum(String namespace,
                                                                          Class<T> enumType,
                                                                          Function<? super T,? extends K> keyGetter)

Create a key-value pair container based on the specified type enumeration.
The key value is the enumeration attribute value obtained by keyGetter.

类型参数:

K - key type

T - enumeration type

参数:

namespace - namespace

enumType - enum type

keyGetter - method to obtain the corresponding key value from the enumeration comparator

返回:

container

forEnum

public static <K> ConstantContainer<K> forEnum(Class<? extends Enum<?>> enumType,
                                               AnnotationFinder annotationFinder,
                                               PropertyOperator propertyOperator)

Create a key-value pair container based on the specified type enumeration.
The key value and namespace are obtained through the corresponding ContainerEnum annotation

参数:

enumType - enum type

annotationFinder - annotation finder

propertyOperator - property operator

返回:

container

另请参阅:

ContainerEnum

forConstantClass

public static ConstantContainer<Object> forConstantClass(Class<?> constantClass,
                                                         AnnotationFinder annotationFinder)

Convert public static constants in the specified constant class to containers.

参数:

constantClass - constant class

返回:

container

另请参阅:

ContainerConstant

forMap

public static <K> ConstantContainer<K> forMap(String namespace,
                                              Map<K,?> data)

Create a key-value pair container based on the specified type enumeration.
The key value is the enumeration attribute value obtained by keyGetter.

类型参数:

K - key type

参数:

namespace - namespace

data - data source objects grouped by key value

返回:

container

get

public Map<K,?> get(Collection<K> keys)

Enter a batch of key values to return data source objects grouped by key values.

指定者:

get 在接口中 Container<K>

参数:

keys - keys

返回:

data source objects grouped by key value

destroy

public void destroy()

Destroy the container

指定者:

destroy 在接口中 Container.Lifecycle