Package art.cutils.function

Class Idler<T>

java.lang.Object

art.cutils.function.Idler<T>

Type Parameters:

T - the type value

All Implemented Interfaces:

Dealer<T>, Serializable, Supplier<T>

public final class Idler<T>
extends Object
implements Supplier<T>, Dealer<T>, Serializable

The Idlerr is intended to be memorized and idempotent. This can be very useful for operations with high latency whose result are used multitudinous. The operation is performed once and the result and served whenever needed and hence improving the performance.

Since:

1.0

Author:

, Bobai Kato

See Also:

Supplier, Dealer, Serialized Form

Method Summary

Modifier and Type	Method	Description
T	deal()	Gets a result for dealer operation.
static <T> @NotNull Dealer<T>	deal(Dealer<? extends T> dealer)	Supply take an instance of Dealer as parameter..
boolean	equals(Object o)
T	get()	Gets a result for supplier operation.
int	hashCode()
static <T> @NotNull Idler<T>	of(Dealer<? extends T> dealer, Supplier<T> supplier)
static <T> @NotNull Idler<T>	of(Supplier<? extends T> supplier, Dealer<? extends T> dealer)
static <T> @NotNull Supplier<T>	supply(Supplier<? extends T> supplier)	Supply take an instance of Supplier as parameter..

Methods inherited from class java.lang.Object

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

Method Detail

of

@Contract("_, _ -> new")
@NotNull
public static <T> @NotNull Idler<T> of(Dealer<? extends T> dealer,
                                       Supplier<T> supplier)

of

@Contract("_, _ -> new")
@NotNull
public static <T> @NotNull Idler<T> of(Supplier<? extends T> supplier,
                                       Dealer<? extends T> dealer)

supply

@Contract("_ -> new")
@NotNull
public static <T> @NotNull Supplier<T> supply(Supplier<? extends T> supplier)

Supply take an instance of Supplier as parameter..

Type Parameters:

T - the type parameter

Parameters:

supplier - the supplier, an instance of Supplier

Returns:

the supplier, an instance of Supplier

deal

@Contract("_ -> new")
@NotNull
public static <T> @NotNull Dealer<T> deal(Dealer<? extends T> dealer)

Supply take an instance of Dealer as parameter..

Type Parameters:

T - the type parameter

Parameters:

dealer - the supplier, an instance of Dealer

Returns:

the supplier, an instance of Dealer

deal

public T deal()
       throws Exception

Gets a result for dealer operation.

Specified by:

deal in interface Dealer<T>

Returns:

a dealer result

Throws:

Exception - operation exception thrown

See Also:

Dealer.deal()

get

public T get()

Gets a result for supplier operation.

Specified by:

get in interface Supplier<T>

Returns:

a supplier result

See Also:

Supplier.get()

hashCode

public int hashCode()

Overrides:

hashCode in class Object

equals

@Contract(value="null -> false",
          pure=true)
public boolean equals(Object o)

Overrides:

equals in class Object