Ref
Related Docs:
object Ref
| package zio
Reads the value from the Ref.
Atomically modifies the Ref with the specified function, which computes a
return value for the modification.
Atomically modifies the Ref with the specified function, which computes a
return value for the modification. This is a more powerful version of
update.
Writes a new value to the Ref, with a guarantee of immediate consistency
(at some cost to performance).
Writes a new value to the Ref without providing a guarantee of immediate
consistency.
Atomically writes the specified value to the Ref, returning the value
immediately before modification.
Atomically modifies the Ref with the specified function, returning the
value immediately before modification.
Atomically modifies the Ref with the specified partial function,
returning the value immediately before modification.
Atomically modifies the Ref with the specified partial function,
returning the value immediately before modification. If the function is
undefined on the current value it doesn't change it.
Atomically modifies the Ref with the specified partial function, which
computes a return value for the modification if the function is defined on
the current value otherwise it returns a default value.
Atomically modifies the Ref with the specified partial function, which
computes a return value for the modification if the function is defined on
the current value otherwise it returns a default value. This is a more
powerful version of updateSome.
Atomically modifies the Ref with the specified function.
Atomically modifies the Ref with the specified function and returns the
updated value.
Atomically modifies the Ref with the specified partial function.
Atomically modifies the Ref with the specified partial function. If the
function is undefined on the current value it doesn't change it.
Atomically modifies the Ref with the specified partial function.
Atomically modifies the Ref with the specified partial function. If the
function is undefined on the current value it returns the old value without
changing it.
A
Refis a purely functional description of a mutable reference. The fundamental operations of aRefaresetandget.setsets the reference to a new value.getgets the current value of the reference.By default,
Refis implemented in terms of compare and swap operations for maximum performance and does not support performing effects within update operations. If you need to perform effects within update operations you can create aRef.Synchronized, a specialized type ofRefthat supports performing effects within update operations at some cost to performance. In this case writes will semantically block other writers, while multiple readers can read simultaneously.NOTE: While
Refprovides the functional equivalent of a mutable reference, the value inside theRefshould normally be immutable since compare and swap operations are not safe for mutable values that do not support concurrent access. If you do need to use a mutable valueRef.Synchronizedwill guarantee that access to the value is properly synchronized.