org.springframework.core

类 ReactiveTypeDescriptor

java.lang.Object

org.springframework.core.ReactiveTypeDescriptor

public class ReactiveTypeDescriptor
extends Object

Describes the semantics of a reactive type including boolean checks for isMultiValue(), isNoValue(), and supportsEmpty().

从以下版本开始:

5.0

作者:

Rossen Stoyanchev

方法概要

限定符和类型	方法和说明
boolean	equals(Object other)
Object	getEmptyValue() Return an empty-value instance for the underlying reactive or async type.
Class<?>	getReactiveType() Return the reactive type for this descriptor.
int	hashCode()
boolean	isMultiValue() Return true if the reactive type can produce more than 1 value can be produced and is therefore a good fit to adapt to Flux.
boolean	isNoValue() Return true if the reactive type does not produce any values and only provides completion and error signals.
static ReactiveTypeDescriptor	multiValue(Class<?> type, Supplier<?> emptySupplier) Descriptor for a reactive type that can produce 0..N values.
static ReactiveTypeDescriptor	noValue(Class<?> type, Supplier<?> emptySupplier) Descriptor for a reactive type that does not produce any values.
static ReactiveTypeDescriptor	singleOptionalValue(Class<?> type, Supplier<?> emptySupplier) Descriptor for a reactive type that can produce 0..1 values.
static ReactiveTypeDescriptor	singleRequiredValue(Class<?> type) Descriptor for a reactive type that must produce 1 value to complete.
boolean	supportsEmpty() Return true if the reactive type can complete with no values.

从类继承的方法 java.lang.Object

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

方法详细资料

getReactiveType

public Class<?> getReactiveType()

Return the reactive type for this descriptor.

isMultiValue

public boolean isMultiValue()

Return true if the reactive type can produce more than 1 value can be produced and is therefore a good fit to adapt to Flux. A false return value implies the reactive type can produce 1 value at most and is therefore a good fit to adapt to Mono.

isNoValue

public boolean isNoValue()

Return true if the reactive type does not produce any values and only provides completion and error signals.

supportsEmpty

public boolean supportsEmpty()

Return true if the reactive type can complete with no values.

getEmptyValue

public Object getEmptyValue()

Return an empty-value instance for the underlying reactive or async type. Use of this type implies supportsEmpty() is true.

equals

public boolean equals(@Nullable
                      Object other)

覆盖:

equals 在类中 Object

hashCode

public int hashCode()

覆盖:

hashCode 在类中 Object

multiValue

public static ReactiveTypeDescriptor multiValue(Class<?> type,
                                                Supplier<?> emptySupplier)

Descriptor for a reactive type that can produce 0..N values.

参数:

type - the reactive type

emptySupplier - a supplier of an empty-value instance of the reactive type

singleOptionalValue

public static ReactiveTypeDescriptor singleOptionalValue(Class<?> type,
                                                         Supplier<?> emptySupplier)

Descriptor for a reactive type that can produce 0..1 values.

参数:

type - the reactive type

emptySupplier - a supplier of an empty-value instance of the reactive type

singleRequiredValue

public static ReactiveTypeDescriptor singleRequiredValue(Class<?> type)

Descriptor for a reactive type that must produce 1 value to complete.

参数:

type - the reactive type

noValue

public static ReactiveTypeDescriptor noValue(Class<?> type,
                                             Supplier<?> emptySupplier)

Descriptor for a reactive type that does not produce any values.

参数:

type - the reactive type

emptySupplier - a supplier of an empty-value instance of the reactive type