Module is.codion.common.core

Package is.codion.common.observer

Interface Mutable<T>

Type Parameters:

T - the value type

All Superinterfaces:

Observable<T>, Observer<T>

All Known Subinterfaces:

EntityEditModel.EditableEntity, EntityQueryModel.AdditionalCondition, FilterComboBoxModel.ComboBoxItems<T>, FilterComboBoxModel.NullItem<T>, FilterModel.Items<T>, FilterTableColumnModel.VisibleColumns<C>, MultiItemSelection.Indexes, MultiItemSelection.Items<R>

All Known Implementing Classes:

NullableToggleButtonModel.ToggleState

public interface Mutable<T>
extends Observable<T>

A wrapper for a mutable value, providing a change observer.

 
   class Person {
       private final Event<String> nameChanged = Event.event();

       private String name;

       public String getName() {
           return name;
       }

       public void setName(String name) {
           this.name = name;
           nameChanged.accept(name);
      }
   }

   Person person = new Person();

   Mutable<String> mutableName = new Mutable<>() {
       @Override
       public String get() {
           return person.getName();
       }

       @Override
       public void set(String value) {
           person.setName(value);
       }

       @Override
       public Observer<String> observer() {
           return person.nameChanged.observer();
       }
  };

  mutableName.addConsumer(newName ->
          System.out.println("Name changed to " + newName));
 
 

Method Summary

Modifier and Type	Method	Description
default void	clear()	Clears this Mutable instance by setting the value to null
void	set(T value)	Sets the value

Methods inherited from interface is.codion.common.observer.Observable

addConsumer, addListener, addWeakConsumer, addWeakListener, get, observer, optional, removeConsumer, removeListener, removeWeakConsumer, removeWeakListener

Method Details

set

void set(T value)

Sets the value

Parameters:

value - the value to set

clear

default void clear()

Clears this Mutable instance by setting the value to null