cn.crane4j.core.container

类 Containers

java.lang.Object

cn.crane4j.core.container.Containers

public class Containers
extends Object

A utility class for creating containers from various data sources.

从以下版本开始:

2.0.0

作者:

tangcent

构造器概要

构造器

构造器和说明
Containers()

方法概要

限定符和类型	方法和说明
static <K> Container<K>	empty() Get an empty data source container.
static <K> Container<K>	empty(String namespace) Create an empty map by given namespace
static Container<Object>	forConstantClass(Class<?> constantClass) Creates an immutable container from public static constants in the specified class.
static Container<Object>	forConstantClass(Class<?> constantClass, AnnotationFinder annotationFinder) Creates an immutable container from public static constants in the specified class.
static <K> ImmutableMapContainer<K>	forEmptyData(String namespace) Build a data source container based on an input key set and an expression that returns data sources grouped by key.
static <K> Container<K>	forEnum(Class<? extends Enum<?>> enumType) Creates an immutable container from a specified enumeration type and a ContainerEnum annotation.
static <K> Container<K>	forEnum(Class<? extends Enum<?>> enumType, AnnotationFinder annotationFinder, PropertyOperator propertyOperator) Creates an immutable container from a specified enumeration type and a ContainerEnum annotation.
static <K,T extends Enum<?>> Container<K>	forEnum(String namespace, Class<T> enumType, Function<? super T,K> keyGetter) Creates an immutable container from a specified enumeration type and key getter function.
static <K> LambdaContainer<K>	forLambda(String namespace, DataProvider<K,?> lambda) Build a data source container based on an input key set and an expression that returns data sources grouped by key.
static <K> ImmutableMapContainer<K>	forMap(String namespace, Map<K,?> data) Create a key-value pair container based on the specified type enumeration.

从类继承的方法 java.lang.Object

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

构造器详细资料

Containers

public Containers()

方法详细资料

empty

public static <K> Container<K> empty()

Get an empty data source container.
When an assembly operation specifies to use the data source container, the operation object itself will be used as the data source object.

返回:

container

另请参阅:

Container.empty(), EmptyContainer

empty

public static <K> Container<K> empty(String namespace)

Create an empty map by given namespace

参数:

namespace - namespace

返回:

empty container

从以下版本开始:

2.2.0

forMap

public static <K> ImmutableMapContainer<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

forEmptyData

public static <K> ImmutableMapContainer<K> forEmptyData(String namespace)

Build a data source container based on an input key set and an expression that returns data sources grouped by key.

类型参数:

K - key type

参数:

namespace - namespace

返回:

container

另请参阅:

DataProvider.empty()

forLambda

public static <K> LambdaContainer<K> forLambda(String namespace,
                                               DataProvider<K,?> lambda)

Build a data source container based on an input key set and an expression that returns data sources grouped by key.

类型参数:

K - key type

参数:

namespace - namespace

lambda - lambda expression

返回:

container

另请参阅:

LambdaContainer.forLambda(String, DataProvider)

forConstantClass

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

Creates an immutable container from public static constants in the specified class.

参数:

constantClass - the class whose constants should be converted to a container

annotationFinder - used to find annotations in the class

返回:

a container representing the class's constants

另请参阅:

ConstantContainerBuilder

forConstantClass

public static Container<Object> forConstantClass(Class<?> constantClass)

Creates an immutable container from public static constants in the specified class.

参数:

constantClass - the class whose constants should be converted to a container

返回:

a container representing the class's constants

从以下版本开始:

2.3.0

另请参阅:

ConstantContainerBuilder

forEnum

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

Creates an immutable container from a specified enumeration type and key getter function.

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 instance

返回:

container

另请参阅:

EnumContainerBuilder

forEnum

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

Creates an immutable container from a specified enumeration type and a ContainerEnum annotation.

类型参数:

K - key type

参数:

enumType - enum type

annotationFinder - annotation finder

propertyOperator - property operator

返回:

container

另请参阅:

EnumContainerBuilder

forEnum

public static <K> Container<K> forEnum(Class<? extends Enum<?>> enumType)

Creates an immutable container from a specified enumeration type and a ContainerEnum annotation.

类型参数:

K - key type

参数:

enumType - enum type

返回:

container

从以下版本开始:

2.3.0

另请参阅:

EnumContainerBuilder