org.apache.ratis.util

类 MemoizedCheckedSupplier<RETURN,THROW extends Throwable>

java.lang.Object

org.apache.ratis.util.MemoizedCheckedSupplier<RETURN,THROW>

类型参数:

RETURN - The return type of the supplier.

THROW - The throwable type of the supplier.

所有已实现的接口:

CheckedSupplier<RETURN,THROW>

public final class MemoizedCheckedSupplier<RETURN,THROW extends Throwable>
extends Object
implements CheckedSupplier<RETURN,THROW>

A memoized supplier is a CheckedSupplier which gets a value by invoking its initializer once. and then keeps returning the same value as its supplied results. This class is thread safe.

方法概要

限定符和类型	方法和说明
RETURN	get() The same as Supplier.get() except that this method is declared with a throws-clause.
RETURN	getUnchecked()
boolean	isInitialized()
String	toString()
static <RETURN,THROW extends Throwable> MemoizedCheckedSupplier<RETURN,THROW>	valueOf(CheckedSupplier<RETURN,THROW> supplier)

从类继承的方法 java.lang.Object

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

方法详细资料

valueOf

public static <RETURN,THROW extends Throwable> MemoizedCheckedSupplier<RETURN,THROW> valueOf(CheckedSupplier<RETURN,THROW> supplier)

参数:

supplier - to supply at most one non-null value.

返回:

a MemoizedCheckedSupplier with the given supplier.

get

public RETURN get()
           throws THROW extends Throwable

从接口复制的说明: CheckedSupplier

The same as Supplier.get() except that this method is declared with a throws-clause.

指定者:

get 在接口中 CheckedSupplier<RETURN,THROW extends Throwable>

返回:

the lazily initialized object.

抛出:

THROW extends Throwable

getUnchecked

public RETURN getUnchecked()

返回:

the already initialized object.

抛出:

NullPointerException - if the object is uninitialized.

isInitialized

public boolean isInitialized()

返回:

is the object initialized?

toString

public String toString()

覆盖:

toString 在类中 Object