Class P1.Memo<A>

java.lang.Object

fj.P1<A>

fj.P1.Memo<A>

All Implemented Interfaces:

F0<A>, Supplier<A>

Enclosing class:

P1<A>

static final class P1.Memo<A>
extends P1<A>

Nested Class Summary

Nested classes/interfaces inherited from class P1

P1.Memo<A>, P1.ReferenceMemo<A>, P1.SoftReferenceMemo<A>, P1.WeakReferenceMemo<A>

Field Summary

Fields

Modifier and Type	Field	Description
private F0<A>	fa
private A	value

Constructor Summary

Constructors

Constructor	Description
Memo(F0<A> fa)

Method Summary

Modifier and Type	Method	Description
final A	_1()	Access the first element of the product.
private A	computeValue()
P1<A>	hardMemo()	Returns a P1 that remembers its value.
P1<A>	softMemo()	Like memo, but the memoized value is wrapped into a SoftReference
P1<A>	weakMemo()	Like memo, but the memoized value is wrapped into a WeakReference

Methods inherited from class P1

__1, apply, bind, bind, bind, constant, curry, equals, f, hashCode, join, liftM2, liftM2, map, map_, memo, sequence, sequence, sequence, sequence, sequenceList, toString, traverseEither, traverseList, traverseOption, traverseStream, traverseValidation

Methods inherited from class Object

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

Methods inherited from interface F0

get, toEffect0, toP1, toTry0, toTryEffect0

Field Details

fa

private volatile F0<A> fa

value

private A value

Constructor Details

Memo

Memo(F0<A> fa)

Method Details

_1

public final A _1()

Description copied from class: P1

Access the first element of the product.

Specified by:

_1 in class P1<A>

Returns:

The first element of the product.

computeValue

private A computeValue()

hardMemo

public P1<A> hardMemo()

Description copied from class: P1

Returns a P1 that remembers its value.

Overrides:

hardMemo in class P1<A>

Returns:

A P1 that calls this P1 once and remembers the value for subsequent calls.

softMemo

public P1<A> softMemo()

Description copied from class: P1

Like memo, but the memoized value is wrapped into a SoftReference

Overrides:

softMemo in class P1<A>

weakMemo

public P1<A> weakMemo()

Description copied from class: P1

Like memo, but the memoized value is wrapped into a WeakReference

Overrides:

weakMemo in class P1<A>