java.lang.Object
javafx.beans.binding.SetExpression<E>
- Type Parameters:
E
- the type of theSet
elements
- All Implemented Interfaces:
Iterable<E>
,Collection<E>
,Set<E>
,Observable
,ObservableObjectValue<ObservableSet<E>>
,ObservableSetValue<E>
,ObservableValue<ObservableSet<E>>
,ObservableSet<E>
- Direct Known Subclasses:
ReadOnlySetProperty
,SetBinding
public abstract class SetExpression<E> extends Object implements ObservableSetValue<E>
SetExpression
is an
ObservableSetValue
plus additional convenience
methods to generate bindings in a fluent style.
A concrete sub-class of SetExpression
has to implement the method
ObservableObjectValue.get()
, which provides the
actual value of this expression.
If the wrapped list of a SetExpression
is null
, all methods implementing the Set
interface will behave as if they were applied to an immutable empty set.
- Since:
- JavaFX 2.1
-
Property Summary
Properties Type Property Description abstract ReadOnlyBooleanProperty
empty
A boolean property that istrue
, if the set is empty.abstract ReadOnlyIntegerProperty
size
An integer property that represents the size of the set. -
Constructor Summary
Constructors Constructor Description SetExpression()
-
Method Summary
Modifier and Type Method Description boolean
add(E element)
boolean
addAll(Collection<? extends E> elements)
StringBinding
asString()
void
clear()
boolean
contains(Object obj)
boolean
containsAll(Collection<?> objects)
abstract ReadOnlyBooleanProperty
emptyProperty()
A boolean property that istrue
, if the set is empty.int
getSize()
The size of the setObservableSet<E>
getValue()
Returns the current value of thisObservableValue
boolean
isEmpty()
Gets the value of the property empty.BooleanBinding
isEqualTo(ObservableSet<?> other)
BooleanBinding
isNotEqualTo(ObservableSet<?> other)
BooleanBinding
isNotNull()
BooleanBinding
isNull()
Iterator<E>
iterator()
boolean
remove(Object obj)
boolean
removeAll(Collection<?> objects)
boolean
retainAll(Collection<?> objects)
static <E> SetExpression<E>
setExpression(ObservableSetValue<E> value)
Returns aSetExpression
that wraps aObservableSetValue
.int
size()
abstract ReadOnlyIntegerProperty
sizeProperty()
An integer property that represents the size of the set.Object[]
toArray()
<T> T[]
toArray(T[] array)
-
Property Details
-
Constructor Details
-
SetExpression
public SetExpression()
-
-
Method Details
-
getValue
Description copied from interface:ObservableValue
Returns the current value of thisObservableValue
- Specified by:
getValue
in interfaceObservableValue<E>
- Returns:
- The current value
-
setExpression
Returns aSetExpression
that wraps aObservableSetValue
. If theObservableSetValue
is already aSetExpression
, it will be returned. Otherwise a newSetBinding
is created that is bound to theObservableSetValue
.- Type Parameters:
E
- the type of theSet
elements- Parameters:
value
- The sourceObservableSetValue
- Returns:
- A
SetExpression
that wraps theObservableSetValue
if necessary - Throws:
NullPointerException
- ifvalue
isnull
-
getSize
public int getSize()The size of the set- Returns:
- the size
-
sizeProperty
An integer property that represents the size of the set.- See Also:
getSize()
-
emptyProperty
A boolean property that istrue
, if the set is empty.- See Also:
isEmpty()
-
isEqualTo
- Parameters:
other
- the otherObservableSet
- Returns:
- the new
BooleanBinding
- Throws:
NullPointerException
- ifother
isnull
-
isNotEqualTo
- Parameters:
other
- the otherObservableSet
- Returns:
- the new
BooleanBinding
- Throws:
NullPointerException
- ifother
isnull
-
isNull
- Returns:
- the new
BooleanBinding
-
isNotNull
- Returns:
- the new
BooleanBinding
-
asString
Creates aStringBinding
that holds the value of theSetExpression
turned into aString
. If the value of thisSetExpression
changes, the value of theStringBinding
will be updated automatically.- Returns:
- the new
StringBinding
-
size
public int size() -
isEmpty
public boolean isEmpty()Gets the value of the property empty. -
contains
-
iterator
-
toArray
-
toArray
public <T> T[] toArray(T[] array) -
add
-
remove
-
containsAll
- Specified by:
containsAll
in interfaceCollection<E>
- Specified by:
containsAll
in interfaceSet<E>
-
addAll
-
removeAll
-
retainAll
-
clear
public void clear()
-