Sinobu API

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`Variable<V>`

V

ConsumerV
SupplierV

A re-assignable container object which may or may not contain a non-null value. If a value is present, #isPresent() returns true. If no value is present, the object is considered empty and #isPresent() returns false. Unlike Optional, this container is re-assignable.

Additional methods that depend on the presence or absence of a contained value are provided, such as #or(Object) (returns a default value if no value is present) and #to(Consumer) (performs an action if a value is present).

`v``V`

The current value. This value is not final but read-only.

`Variable(Vvalue)`

Vvalue

Hide constructor.

`accept(Vvalue)``void`

Vvalue

`acquire()``V`

`V`	Current value or next value.

Get the current value. If there is no value, wait until the value is set.

`exact()``V`

`V`	Current value or throws error.

Get the current value. If there is no value, NullPointerException will be thrown.

`get()``V`

`V`	Current value or null.

Get the current value. If there is no value, returns null.

`intercept(WiseBiFunctionV, V, Vinterceptor)``VariableV`

`WiseBiFunctionV, V, Vinterceptor`	An interceptor for value modification. First parameter is the current value, Second parameter is the new value.
`VariableV`	Chainable API.

Intercept the value modification.

`is(Vvalue)``boolean`

`Vvalue`	A value to check the equality.
`boolean`	A result of equality.

Test whether the current value is equal to the specified value or not.

`is(PredicateVcondition)``boolean`

`PredicateVcondition`	A value validator.
`boolean`	A result of validation.

Test whether the current value fulfills the specified condition or not.

`isNot(Vvalue)``boolean`

`Vvalue`	A value to check the equality.
`boolean`	A result of equality.

Test whether the current value is NOT equal to the specified value or not.

`isNot(PredicateVcondition)``boolean`

`PredicateVcondition`	A value validator.
`boolean`	A result of validation.

Test whether the current value does NOT fulfill the specified condition or not.

`isAbsent()``boolean`

boolean

A result.

Check whether the value is absent or not.

`isPresent()``boolean`

boolean

A result.

Check whether the value is present or not.

`isFixed()``boolean`

boolean

A result.

Check whether the value is fixed or not.

`fix()``VariableV`

VariableV

Chainable API.

Fix this value as immutable.

`flip(Supplier?Rthen)``VariableR`

`R`
`Supplier?Rthen`	An action to perform.
`VariableR`	The computed `Variable`.

Perform the specified action if the value is absent.

`flatFlip(SupplierVariableRmapper)``VariableR`

`R`
`SupplierVariableRmapper`	The mapping function to apply to a value, if present.
`VariableR`	The computed `Variable`.

If a value is present, returns the result of applying the given Variable-bearing mapping function to the value, otherwise returns an empty Variable.

`map(Function?V, ?Rthen)``VariableR`

`R`
`Function?V, ?Rthen`	An action to perform.
`VariableR`	The computed `Variable`.

Perform the specified action if the value is present.

`flatMap(FunctionV, VariableRmapper)``VariableR`

`R`
`FunctionV, VariableRmapper`	The mapping function to apply to a value, if present.
`VariableR`	The computed `Variable`.

If a value is present, returns the result of applying the given Variable-bearing mapping function to the value, otherwise returns an empty Variable.

`next()``V`

`V`	The next value.

Get the value to be set next. The method waits until a new value is set.

`observe()``SignalV`

SignalV

The Signal which notifies value modification.

Observe this Variable.

`observing()``SignalV`

SignalV

The Signal which notifies value modification.

Observe this Variable with the current value.

`or(Vother)``V`

`Vother`	A value to be returned if there is no value present, may be null.
`V`	The current value or alternative value.

Get the current value. If there is no value, returns the specified alternative value.

`or(SupplierVother)``V`

`SupplierVother`	A value to be returned if there is no value present, may be null.
`V`	The current value or alternative value.

Get the current value. If there is no value, returns the specified alternative value.

`set(Vvalue)``V`

`Vvalue`	A value to assign.
`V`	A previous value.

Assign the new value.

`set(SupplierVvalue)``V`

`SupplierVvalue`	A value generator.
`V`	A previous value.

Assign the new value.

`set(UnaryOperatorVvalue)``V`

`UnaryOperatorVvalue`	A value generator.
`V`	A previous value.

Assign the new value.

`to(ConsumerVsome)``void`

ConsumerVsome

A user action.

Execute the specified action if the value is present.

`to(ConsumerVsome, Runnablenone)``void`

`ConsumerVsome`	A user action.
`Runnablenone`

Execute the specified action.

`hashCode()``int`

int

`equals(Objectobj)``boolean`

`Objectobj`
`boolean`

`toString()``String`

String

`of(Tvalue)``VariableT`

`T`
`Tvalue`	An actual value, `null` will be acceptable.
`VariableT`	A created `Variable`.

Create Variable with the specified value.

`empty()``VariableT`

`T`
`VariableT`	A new empty `Variable`.

Create empty Variable.

Variable<V>

vV

Variable(Vvalue)

accept(Vvalue)void

acquire()V

exact()V

get()V

intercept(WiseBiFunctionV, V, Vinterceptor)VariableV

is(Vvalue)boolean

is(PredicateVcondition)boolean

isNot(Vvalue)boolean

isNot(PredicateVcondition)boolean

isAbsent()boolean

isPresent()boolean

isFixed()boolean

fix()VariableV

flip(Supplier?Rthen)VariableR

flatFlip(SupplierVariableRmapper)VariableR

map(Function?V, ?Rthen)VariableR

flatMap(FunctionV, VariableRmapper)VariableR

next()V

observe()SignalV

observing()SignalV

or(Vother)V

or(SupplierVother)V

set(Vvalue)V

set(SupplierVvalue)V

set(UnaryOperatorVvalue)V

to(ConsumerVsome)void

to(ConsumerVsome, Runnablenone)void

hashCode()int

equals(Objectobj)boolean

toString()String

of(Tvalue)VariableT

empty()VariableT

`Variable<V>`

`v``V`

`Variable(Vvalue)`

`accept(Vvalue)``void`

`acquire()``V`

`exact()``V`

`get()``V`

`intercept(WiseBiFunctionV, V, Vinterceptor)``VariableV`

`is(Vvalue)``boolean`

`is(PredicateVcondition)``boolean`

`isNot(Vvalue)``boolean`

`isNot(PredicateVcondition)``boolean`

`isAbsent()``boolean`

`isPresent()``boolean`

`isFixed()``boolean`

`fix()``VariableV`

`flip(Supplier?Rthen)``VariableR`

`flatFlip(SupplierVariableRmapper)``VariableR`

`map(Function?V, ?Rthen)``VariableR`

`flatMap(FunctionV, VariableRmapper)``VariableR`

`next()``V`

`observe()``SignalV`

`observing()``SignalV`

`or(Vother)``V`

`or(SupplierVother)``V`

`set(Vvalue)``V`

`set(SupplierVvalue)``V`

`set(UnaryOperatorVvalue)``V`

`to(ConsumerVsome)``void`

`to(ConsumerVsome, Runnablenone)``void`

`hashCode()``int`

`equals(Objectobj)``boolean`

`toString()``String`

`of(Tvalue)``VariableT`

`empty()``VariableT`