程序包 cn.taketoday.util

类 LambdaSafe

java.lang.Object

cn.taketoday.util.LambdaSafe

public abstract class LambdaSafe
extends Object

Utility that can be used to invoke lambdas in a safe way. Primarily designed to help support generically typed callbacks where class cast exceptions need to be dealt with due to class erasure.

从以下版本开始:

4.0 2022/1/16 14:11

作者:

Phillip Webb, Harry Yang

嵌套类概要

嵌套类

修饰符和类型	类	说明
static final class	LambdaSafe.Callback<C,A>	Represents a single callback that can be invoked in a lambda safe way.
static final class	LambdaSafe.Callbacks<C,A>	Represents a collection of callbacks that can be invoked in a lambda safe way.
static final class	LambdaSafe.InvocationResult<R>	The result of a callback which may be a value, null or absent entirely if the callback wasn't suitable.
protected static class	LambdaSafe.LambdaSafeCallback<C,A,SELF extends LambdaSafe.LambdaSafeCallback<C,A,SELF>>	Abstract base class for lambda safe callbacks.

构造器概要

构造器

构造器	说明
LambdaSafe()

方法概要

修饰符和类型	方法	说明
static <C, A> LambdaSafe.Callback<C,A>	callback(Class<C> callbackType, C callbackInstance, A argument, Object... additionalArguments)	Start a call to a single callback instance, dealing with common generic type concerns and exceptions.
static <C, A> LambdaSafe.Callbacks<C,A>	callbacks(Class<C> callbackType, Collection<? extends C> callbackInstances, A argument, Object... additionalArguments)	Start a call to callback instances, dealing with common generic type concerns and exceptions.

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

LambdaSafe

public LambdaSafe()

方法详细资料

callback

public static <C,
A> LambdaSafe.Callback<C,A> callback(Class<C> callbackType,
 C callbackInstance,
 A argument,
 Object... additionalArguments)

Start a call to a single callback instance, dealing with common generic type concerns and exceptions.

类型参数:

C - the callback type

A - the primary argument type

参数:

callbackType - the callback type (a functional interface)

callbackInstance - the callback instance (may be a lambda)

argument - the primary argument passed to the callback

additionalArguments - any additional arguments passed to the callback

返回:

a LambdaSafe.Callback instance that can be invoked.

callbacks

public static <C,
A> LambdaSafe.Callbacks<C,A> callbacks(Class<C> callbackType,
 Collection<? extends C> callbackInstances,
 A argument,
 Object... additionalArguments)

Start a call to callback instances, dealing with common generic type concerns and exceptions.

类型参数:

C - the callback type

A - the primary argument type

参数:

callbackType - the callback type (a functional interface)

callbackInstances - the callback instances (elements may be lambdas)

argument - the primary argument passed to the callbacks

additionalArguments - any additional arguments passed to the callbacks

返回:

a LambdaSafe.Callbacks instance that can be invoked.