com.ulisesbocchio.jasyptspringboot.util

Class Singleton<R>

java.lang.Object

com.ulisesbocchio.jasyptspringboot.util.Singleton<R>

All Implemented Interfaces:

Supplier<R>

public final class Singleton<R>
extends Object
implements Supplier<R>

Singleton initializer class that uses an internal supplier to supply the singleton instance. The supplier originally checks whether the instanceSupplier has been initialized or not, but after initialization the instance supplier is changed to avoid extra logic execution.

Constructor Summary

Constructors

Constructor and Description
Singleton(Supplier<R> original)

Method Summary

Modifier and Type	Method and Description
static <T,U,R> Singleton<R>	from(BiFunction<T,U,R> original, T arg0, U arg1)
static <T,R> Singleton<R>	from(Function<T,R> original, T arg0)
static <R> Singleton<R>	from(Supplier<R> original)
static <T,U,R> Singleton<R>	fromLazy(BiFunction<T,U,R> original, Supplier<T> arg0Supplier, Supplier<U> arg1Supplier)
static <T,R> Singleton<R>	fromLazy(Function<T,R> original, Supplier<T> arg0Supplier)
R	get()

Methods inherited from class java.lang.Object

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

Constructor Detail

Singleton

public Singleton(Supplier<R> original)

Method Detail

from

public static <R> Singleton<R> from(Supplier<R> original)

from

public static <T,R> Singleton<R> from(Function<T,R> original,
                                      T arg0)

from

public static <T,U,R> Singleton<R> from(BiFunction<T,U,R> original,
                                        T arg0,
                                        U arg1)

fromLazy

public static <T,R> Singleton<R> fromLazy(Function<T,R> original,
                                          Supplier<T> arg0Supplier)

fromLazy

public static <T,U,R> Singleton<R> fromLazy(BiFunction<T,U,R> original,
                                            Supplier<T> arg0Supplier,
                                            Supplier<U> arg1Supplier)

get

public R get()

Specified by:

get in interface Supplier<R>