PersistedNullableNumSignal class

A PersistedSignal that stores a nullable numeric value.

Inheritance

Object
Signal<num?>
PersistedSignal<num?>
PersistedNullableNumSignal

Available extensions

Constructors

PersistedNullableNumSignal(num? val, String key, {SignalsKeyValueStore? store}): Creates a new NullableNumSignal.

Properties

autoDispose ↔ bool: Throws and error if read after dispose and can be disposed on last unsubscribe.
getter/setter pairinherited
bitLength → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns the minimum number of bits required to store this integer.
no setter
debugLabel → String?: Debug label for Debug Mode
finalinherited
disposed ↔ bool: Check if the effect is disposed
getter/setter pairinherited
equalityCheck ↔ bool Function(num? a, num? b): Optional method to check if to values are the same
getter/setter pairinherited
globalId → int: finalinherited
hashCode → int: The hash code for this object.
no setterinherited
internalValue → num?: no setterinherited
isEven → bool: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns true if and only if this integer is even.
no setter
isFinite → bool: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Whether this number is finite.
no setter
isInfinite → bool: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Whether this number is positive infinity or negative infinity.
no setter
isInitialized → bool: Check if a signal value is set (does not subscribe)
no setterinherited
isNaN → bool: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Whether this number is a Not-a-Number value.
no setter
isNegative → bool: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Whether this number is negative.
no setter
isOdd → bool: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns true if and only if this integer is odd.
no setter
key → String: The key to use for storing the value.
finalinherited
loaded ↔ bool: Whether the signal has been loaded from the store.
getter/setter pairinherited
runtimeType → Type: A representation of the runtime type of the object.
no setterinherited
sign → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
The sign of the double's numerical value.
no setter
sign → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns the sign of this integer.
no setter
sign → num: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Negative one, zero or positive one depending on the sign and numerical value of this number.
no setter
store → SignalsKeyValueStore: The store to use for storing the value.
finalinherited
value ↔ num?: Compute the current value
getter/setter pairinherited
version ↔ int: Version numbers should always be >= 0, because the special value -1 is used by Nodes to signify potentially unused but recyclable nodes.
getter/setter pairinherited

Methods

abs() → num: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
The absolute value of this number.
abs() → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns the absolute value of this integer.
abs() → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
afterCreate(num? val) → void: Internal hook for after a signal is created
inherited
beforeUpdate(num? val) → void: Internal hook for after a signal is updated
inherited
call() → num?: Return the value when invoked
inherited
ceil() → int: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
The least integer no smaller than this.
ceil() → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns this.
ceil() → int: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
Returns the least integer that is not smaller than this number.
ceilToDouble() → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
Returns the least integer double value no smaller than this.
ceilToDouble() → double: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns this.toDouble().
ceilToDouble() → double: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Returns the least double integer value no smaller than this.
clamp(num lowerLimit, num upperLimit) → num: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Returns this num clamped to be in the range lowerLimit-upperLimit.
decode(String value) → num?: Decodes the value from a string.
override
dispose() → void: Dispose the signal
inherited
encode(num? value) → String: Encodes the value to a string.
override
floor() → int: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
Returns the greatest integer no greater than this number.
floor() → int: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
The greatest integer no greater than this number.
floor() → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns this.
floorToDouble() → double: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns this.toDouble().
floorToDouble() → double: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Returns the greatest double integer value no greater than this.
floorToDouble() → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
Returns the greatest integer double value no greater than this.
gcd(int other) → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns the greatest common divisor of this integer and other.
get() → num?: Helper method to get the current value
inherited
init() → Future<void>: Initializes the signal by loading the value from the store.
inherited
internalRefresh() → bool: inherited
load() → Future<num?>: Loads the value from the store.
inherited
modInverse(int modulus) → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns the modular multiplicative inverse of this integer modulo modulus.
modPow(int exponent, int modulus) → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns this integer to the power of exponent modulo modulus.
noSuchMethod(Invocation invocation) → dynamic: Invoked when a nonexistent method or property is accessed.
inherited
onDispose(void cleanup()) → void Function(): Add a cleanup function to be called when the signal is disposed
inherited
overrideWith(num? val) → Signal<num?>: Override the current signal with a new value as if it was created with it
inherited
peek() → num?: In the rare instance that you have an effect that should write to another signal based on the previous value, but you don't want the effect to be subscribed to that signal, you can read a signals's previous value via signal.peek().
inherited
readonly() → ReadonlySignal<num?>: Returns a readonly signal
inherited
remainder(num other) → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
remainder(num other) → num: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
The remainder of the truncating division of this by other.
round() → int: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
Returns the integer closest to this number.
round() → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns this.
round() → int: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
The integer closest to this number.
roundToDouble() → double: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns this.toDouble().
roundToDouble() → double: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
The double integer value closest to this value.
roundToDouble() → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
Returns the integer double value closest to this.
save(num? value) → Future<void>: Saves the value to the store.
inherited
set(num? val, {bool force = false}) → bool: Set the current value by a method
inherited
subscribe(void fn(num? value)) → void Function(): Subscribe to value changes with a dispose function
inherited
subscribeToNode(Node node) → void: inherited
toDouble() → double: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
This number as a double.
toInt() → int: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Truncates this num to an integer and returns the result as an int.
toJson() → dynamic: Convert value to JSON
inherited
toRadixString(int radix) → String: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Converts this int to a string representation in the given radix.
toSigned(int width) → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns the least significant width bits of this integer, extending the highest retained bit to the sign. This is the same as truncating the value to fit in width bits using an signed 2-s complement representation. The returned value has the same bit value in all positions higher than width.
toString() → String: A string representation of this object.
inherited
toStringAsExponential([int? fractionDigits]) → String: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
An exponential string-representation of this number.
toStringAsFixed(int fractionDigits) → String: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
A decimal-point string-representation of this number.
toStringAsPrecision(int precision) → String: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
A string representation with precision significant digits.
toUnsigned(int width) → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns the least significant width bits of this integer as a non-negative number (i.e. unsigned representation). The returned value has zeros in all bit positions higher than width.
truncate() → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns this.
truncate() → int: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
Returns the integer obtained by discarding any fractional part of this number.
truncate() → int: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
The integer obtained by discarding any fractional digits from this.
truncateToDouble() → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
Returns the integer double value obtained by discarding any fractional digits from this.
truncateToDouble() → double: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Returns this.toDouble().
truncateToDouble() → double: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Returns the double integer value obtained by discarding any fractional digits from the double value of this.
unsubscribeFromNode(Node node) → void: inherited

Operators

operator %(num other) → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
operator %(num other) → num: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Euclidean modulo of this number by other.
operator &(int other) → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Bit-wise and operator.
operator *(num other) → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
operator *(num other) → num: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Multiplies this number by other.
operator +(num other) → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
operator +(num other) → num: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Adds other to this number.
operator -(num other) → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
operator -(num other) → num: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Subtracts other from this number.
operator /(num other) → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
operator /(num other) → double: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Divides this number by other.
operator <(num other) → bool: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Whether this number is numerically smaller than other.
operator <<(int shiftAmount) → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Shift the bits of this integer to the left by shiftAmount.
operator <=(num other) → bool: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Whether this number is numerically smaller than or equal to other.
operator ==(Object other) → bool: The equality operator.
inherited
operator >(num other) → bool: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Whether this number is numerically greater than other.
operator >=(num other) → bool: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Whether this number is numerically greater than or equal to other.
operator >>(int shiftAmount) → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Shift the bits of this integer to the right by shiftAmount.
operator >>>(int shiftAmount) → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Bitwise unsigned right shift by shiftAmount bits.
operator ^(int other) → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Bit-wise exclusive-or operator.
operator unary-() → double: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
operator unary-() → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Return the negative value of this integer.
operator unary-() → num: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
The negation of this value.
operator |(int other) → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
Bit-wise or operator.
operator ~() → int: Available on ReadonlySignal<int>, provided by the IntSignalExtension extension
The bit-wise negate operator.
operator ~/(num other) → int: Available on ReadonlySignal<double>, provided by the DoubleSignalExtension extension
operator ~/(num other) → int: Available on ReadonlySignal<num>, provided by the NumSignalExtension extension
Truncating division operator.

PersistedNullableNumSignal class

Constructors

Properties

Methods

Operators

s_packages_extra2 library