sirius.kernel.commons

Class CachingSupplier<T>

java.lang.Object

sirius.kernel.commons.CachingSupplier<T>

Type Parameters:

T - the type of objects being supplied

All Implemented Interfaces:

Supplier<T>

public class CachingSupplier<T>
extends Object
implements Supplier<T>

Uses the given supplier but caches the computed value after the first call to get().

This can be used to delay computation intensive operations up until they are needed and also prevent from re-running a computation if the result is required several times.

Constructor Summary

Constructors

Constructor and Description
CachingSupplier(Supplier<T> supplier) Creates a new instance with the operation to delay.

Method Summary

Modifier and Type	Method and Description
T	get() Invokes the given supplier and returns the cached result for every other call.

Methods inherited from class java.lang.Object

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

Constructor Detail

CachingSupplier

public CachingSupplier(Supplier<T> supplier)

Creates a new instance with the operation to delay.

Parameters:

supplier - the supplier to invoke when necessarry

Method Detail

get

public T get()

Invokes the given supplier and returns the cached result for every other call.

Specified by:

get in interface Supplier<T>

Returns:

the cached computation result of the given supplier.