java.lang.Object
javafx.beans.binding.SetExpression<E>
- Type Parameters:
E- the type of theSetelements
- 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
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
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Property Summary
PropertiesTypePropertyDescriptionabstract ReadOnlyBooleanPropertyA boolean property that istrue, if the set is empty.abstract ReadOnlyIntegerPropertyAn integer property that represents the size of the set. -
Constructor Summary
Constructors -
Method Summary
Modifier and TypeMethodDescriptionbooleanbooleanaddAll(Collection<? extends E> elements) asString()voidclear()booleanbooleancontainsAll(Collection<?> objects) abstract ReadOnlyBooleanPropertyA boolean property that istrue, if the set is empty.intgetSize()The size of the setgetValue()Returns the current value of thisObservableValuebooleanisEmpty()Gets the value of theemptyproperty.isEqualTo(ObservableSet<?> other) isNotEqualTo(ObservableSet<?> other) isNull()iterator()booleanbooleanremoveAll(Collection<?> objects) booleanretainAll(Collection<?> objects) static <E> SetExpression<E>setExpression(ObservableSetValue<E> value) Returns aSetExpressionthat wraps aObservableSetValue.intsize()abstract ReadOnlyIntegerPropertyAn integer property that represents the size of the set.Object[]toArray()<T> T[]toArray(T[] array) Methods declared in class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, waitMethods declared in interface java.util.Collection
parallelStream, removeIf, stream, toArrayMethods declared in interface javafx.beans.Observable
addListener, removeListener, subscribeMethods declared in interface javafx.beans.value.ObservableObjectValue
getMethods declared in interface javafx.collections.ObservableSet
addListener, removeListenerMethods declared in interface javafx.beans.value.ObservableValue
addListener, flatMap, map, orElse, removeListener, subscribe, subscribe, whenMethods declared in interface java.util.Set
equals, hashCode, spliterator
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Property Details
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size
An integer property that represents the size of the set.- See Also:
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empty
A boolean property that istrue, if the set is empty.- See Also:
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Constructor Details
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SetExpression
public SetExpression()Creates a defaultSetExpression.
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Method Details
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getValue
Description copied from interface:ObservableValueReturns the current value of thisObservableValue- Specified by:
getValuein interfaceObservableValue<E>- Returns:
- The current value
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setExpression
Returns aSetExpressionthat wraps aObservableSetValue. If theObservableSetValueis already aSetExpression, it will be returned. Otherwise a newSetBindingis created that is bound to theObservableSetValue.- Type Parameters:
E- the type of theSetelements- Parameters:
value- The sourceObservableSetValue- Returns:
- A
SetExpressionthat wraps theObservableSetValueif necessary - Throws:
NullPointerException- ifvalueisnull
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getSize
public int getSize()The size of the set- Returns:
- the size
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sizeProperty
An integer property that represents the size of the set.- Returns:
- the property
- See Also:
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emptyProperty
A boolean property that istrue, if the set is empty.- Returns:
- the
ReadOnlyBooleanProperty - See Also:
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isEqualTo
- Parameters:
other- the otherObservableSet- Returns:
- the new
BooleanBinding - Throws:
NullPointerException- ifotherisnull
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isNotEqualTo
- Parameters:
other- the otherObservableSet- Returns:
- the new
BooleanBinding - Throws:
NullPointerException- ifotherisnull
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isNull
- Returns:
- the new
BooleanBinding
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isNotNull
- Returns:
- the new
BooleanBinding
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asString
Creates aStringBindingthat holds the value of theSetExpressionturned into aString. If the value of thisSetExpressionchanges, the value of theStringBindingwill be updated automatically.- Returns:
- the new
StringBinding
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size
public int size() -
isEmpty
public boolean isEmpty()Gets the value of theemptyproperty. -
contains
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iterator
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toArray
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toArray
public <T> T[] toArray(T[] array) -
add
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remove
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containsAll
- Specified by:
containsAllin interfaceCollection<E>- Specified by:
containsAllin interfaceSet<E>
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addAll
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removeAll
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retainAll
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clear
public void clear()
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