java.lang.Object
- io.github.mmm.event.AbstractEventSource<ObservableEvent<V>,ObservableEventListener<? super V>>
- - io.github.mmm.value.observable.AbstractObservableValue<V>
  - - io.github.mmm.value.observable.Binding<V>

Type Parameters:

V - type of the observable value.

All Implemented Interfaces:

EventSource<ObservableEvent<V>,ObservableEventListener<? super V>>, Expression<V>, ObservableValue<V>, ReadableValue<V>, Supplier<V>

Direct Known Subclasses:

BooleanBinding, InstantBinding, LocalDateBinding, LocalDateTimeBinding, LocalTimeBinding, NumberBinding, OffsetDateTimeBinding, OffsetDateTimeBinding, StringBinding, ZonedDateTimeBinding
```
public abstract class Binding<V>
extends AbstractObservableValue<V>
implements Expression<V>
```
Expression that calculates its value dynamically from other ObservableValues (dependencies).

Since:

1.0.0

Constructor Summary

Constructors
Constructor Description

Binding(Supplier<? extends V> expression, ObservableValue<?>... dependencies)
The constructor.

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`bind(ObservableValue<?>... observables)`	Start observing the dependencies for changes.
`void`	`dispose()`	Called if this `Expression` will not be used anymore and any references can be removed.
`V`	`get()`
`protected void`	`invalidate()`	Invalidates this observable in case it's value is computed.
`protected boolean`	`isValid()`
`void`	`toString(StringBuilder sb)`
`protected void`	`unbind(ObservableValue<?>... observables)`	Stop observing the dependencies for changes.

Methods inherited from class io.github.mmm.value.observable.AbstractObservableValue
addListener, fireChange, fireEvent, fireEvent, fireEventFor, fireEventFor, fireEventWithOldValue, hasChangeAwareListeners, removeListener, toString

Methods inherited from class io.github.mmm.event.AbstractEventSource
getEventAdapter, hasListeners

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Methods inherited from interface io.github.mmm.event.EventSource
addListener, addListener, addWeakListener, removeListener

Methods inherited from interface io.github.mmm.value.observable.Expression
asString, isEqualTo, isEqualTo, isNotEqualTo, isNotEqualTo, isNotNull, isNull

Methods inherited from interface io.github.mmm.value.ReadableValue
getSafe

- Constructor Detail
  - Binding
```
public Binding(Supplier<? extends V> expression,
               ObservableValue<?>... dependencies)
```
    The constructor.
    
    Parameters:
    
    expression - the Supplier to compute the value.
    
    dependencies - the ObservableValues the expression depends on.
- Method Detail
  - bind
```
protected final void bind(ObservableValue<?>... observables)
```
    Start observing the dependencies for changes. If the value of one of the dependencies changes, the binding is marked as invalid.
    
    Parameters:
    
    observables - the dependencies to observe
  - unbind
```
protected final void unbind(ObservableValue<?>... observables)
```
    Stop observing the dependencies for changes.
    
    Parameters:
    
    observables - the dependencies to stop observing
  - dispose
```
public void dispose()
```
    Description copied from interface: Expression
    
    Called if this Expression will not be used anymore and any references can be removed. Any ObservableEventListener added to dependent ObservableValues will be removed.
    
    Specified by:
    
    dispose in interface Expression<V>
  - get
```
public V get()
```
    Specified by:
    
    get in interface ReadableValue<V>
    
    Specified by:
    
    get in interface Supplier<V>
    
    Returns:
    
    the current value of this object. May be null unless otherwise stated.
  - invalidate
```
protected final void invalidate()
```
    Description copied from class: AbstractObservableValue
    
    Invalidates this observable in case it's value is computed.
    
    Overrides:
    
    invalidate in class AbstractObservableValue<V>
  - isValid
```
protected final boolean isValid()
```
    Returns:
    
    true if the cached value is still valid, false otherwise (re-calculation required).
  - toString
```
public void toString(StringBuilder sb)
```
    Specified by:
    
    toString in interface ObservableValue<V>
    
    Overrides:
    
    toString in class AbstractObservableValue<V>
    
    Parameters:
    
    sb - the StringBuilder where to append the details of this property for AbstractObservableValue.toString()-Representation.

Class Binding<V>

Constructor Summary

Method Summary

Methods inherited from class io.github.mmm.value.observable.AbstractObservableValue

Methods inherited from class io.github.mmm.event.AbstractEventSource

Methods inherited from class java.lang.Object

Methods inherited from interface io.github.mmm.event.EventSource

Methods inherited from interface io.github.mmm.value.observable.Expression

Methods inherited from interface io.github.mmm.value.ReadableValue

Constructor Detail

Binding

Method Detail

bind

unbind

dispose

get

invalidate

isValid

toString