SetExpression

java.lang.Object
- javafx.beans.binding.SetExpression<E>

Type Parameters:

E - the type of the Set elements

Direct Known Subclasses:

SetBinding
```
public abstract class SetExpression<E>
extends java.lang.Object
```
SetExpression is an javafx.beans.value.ObservableSetValue plus additional convenience methods to generate bindings in a fluent style.
A concrete sub-class of SetExpression has to implement the method javafx.beans.value.ObservableSetValue#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

All Methods Instance Methods Abstract Methods
Type	Property and Description
`abstract ReadOnlyBooleanProperty`	`empty` A boolean property that is `true`, if the set is empty.
`abstract ReadOnlyIntegerProperty`	`size` An integer property that represents the size of the set.

Nested Class Summary

Nested Classes
Modifier and Type Class and Description

private static class SetExpression.EmptyObservableSet<E>

Nested Classes
Modifier and Type	Class and Description
`private static class`	`SetExpression.EmptyObservableSet<E>`

Field Summary

Fields
Modifier and Type Field and Description

private static ObservableSet EMPTY_SET

Fields
Modifier and Type	Field and Description
`private static ObservableSet`	`EMPTY_SET`

Constructor Summary

Constructors
Constructor and Description

SetExpression()

Constructors
Constructor and Description
`SetExpression()`

Method Summary

All Methods Static Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method and Description
`boolean`	`add(E element)`
`boolean`	`addAll(java.util.Collection<? extends E> elements)`
`StringBinding`	`asString()` Creates a `StringBinding` that holds the value of the `SetExpression` turned into a `String`.
`void`	`clear()`
`boolean`	`contains(java.lang.Object obj)`
`boolean`	`containsAll(java.util.Collection<?> objects)`
`abstract ReadOnlyBooleanProperty`	`emptyProperty()` A boolean property that is `true`, if the set is empty.
`int`	`getSize()` The size of the set
`<any>`	`getValue()`
`boolean`	`isEmpty()` Gets the value of the property empty.
`BooleanBinding`	`isEqualTo(<any> other)` Creates a new `BooleanBinding` that holds `true` if this set is equal to another `javafx.collections.ObservableSet`.
`BooleanBinding`	`isNotEqualTo(<any> other)` Creates a new `BooleanBinding` that holds `true` if this set is not equal to another `javafx.collections.ObservableSet`.
`BooleanBinding`	`isNotNull()` Creates a new `BooleanBinding` that holds `true` if the wrapped set is not `null`.
`BooleanBinding`	`isNull()` Creates a new `BooleanBinding` that holds `true` if the wrapped set is `null`.
`java.util.Iterator<E>`	`iterator()`
`boolean`	`remove(java.lang.Object obj)`
`boolean`	`removeAll(java.util.Collection<?> objects)`
`boolean`	`retainAll(java.util.Collection<?> objects)`
`static <E> SetExpression<E>`	`setExpression(<any> value)` Returns a `SetExpression` that wraps a `javafx.beans.value.ObservableSetValue`.
`int`	`size()`
`abstract ReadOnlyIntegerProperty`	`sizeProperty()` An integer property that represents the size of the set.
`java.lang.Object[]`	`toArray()`
`<T> T[]`	`toArray(T[] array)`

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

- Property Detail
  - size
```
public abstract ReadOnlyIntegerProperty sizeProperty
```
    An integer property that represents the size of the set.
    
    See Also:
    
    getSize()
  - empty
```
public abstract ReadOnlyBooleanProperty emptyProperty
```
    A boolean property that is true, if the set is empty.
    
    See Also:
    
    isEmpty()
- Field Detail
  - EMPTY_SET
```
private static final ObservableSet EMPTY_SET
```
- Constructor Detail
  - SetExpression
```
public SetExpression()
```
- Method Detail
  - getValue
```
public <any> getValue()
```
  - setExpression
```
public static <E> SetExpression<E> setExpression(<any> value)
```
    Returns a SetExpression that wraps a javafx.beans.value.ObservableSetValue. If the ObservableSetValue is already a SetExpression, it will be returned. Otherwise a new SetBinding is created that is bound to the ObservableSetValue.
    
    Type Parameters:
    
    E - the type of the Set elements
    
    Parameters:
    
    value - The source ObservableSetValue
    
    Returns:
    
    A SetExpression that wraps the ObservableSetValue if necessary
    
    Throws:
    
    java.lang.NullPointerException - if value is null
  - getSize
```
public int getSize()
```
    The size of the set
    
    Returns:
    
    the size
  - sizeProperty
```
public abstract ReadOnlyIntegerProperty sizeProperty()
```
    An integer property that represents the size of the set.
    
    See Also:
    
    getSize()
  - emptyProperty
```
public abstract ReadOnlyBooleanProperty emptyProperty()
```
    A boolean property that is true, if the set is empty.
    
    See Also:
    
    isEmpty()
  - isEqualTo
```
public BooleanBinding isEqualTo(<any> other)
```
    Creates a new BooleanBinding that holds true if this set is equal to another javafx.collections.ObservableSet.
    
    Parameters:
    
    other - the other ObservableSet
    
    Returns:
    
    the new BooleanBinding
    
    Throws:
    
    java.lang.NullPointerException - if other is null
  - isNotEqualTo
```
public BooleanBinding isNotEqualTo(<any> other)
```
    Creates a new BooleanBinding that holds true if this set is not equal to another javafx.collections.ObservableSet.
    
    Parameters:
    
    other - the other ObservableSet
    
    Returns:
    
    the new BooleanBinding
    
    Throws:
    
    java.lang.NullPointerException - if other is null
  - isNull
```
public BooleanBinding isNull()
```
    Creates a new BooleanBinding that holds true if the wrapped set is null.
    
    Returns:
    
    the new BooleanBinding
  - isNotNull
```
public BooleanBinding isNotNull()
```
    Creates a new BooleanBinding that holds true if the wrapped set is not null.
    
    Returns:
    
    the new BooleanBinding
  - asString
```
public StringBinding asString()
```
    Creates a StringBinding that holds the value of the SetExpression turned into a String. If the value of this SetExpression changes, the value of the StringBinding will be updated automatically.
    
    Returns:
    
    the new StringBinding
  - size
```
public int size()
```
  - isEmpty
```
public boolean isEmpty()
```
    Gets the value of the property empty.
  - contains
```
public boolean contains(java.lang.Object obj)
```
  - iterator
```
public java.util.Iterator<E> iterator()
```
  - toArray
```
public java.lang.Object[] toArray()
```
  - toArray
```
public <T> T[] toArray(T[] array)
```
  - add
```
public boolean add(E element)
```
  - remove
```
public boolean remove(java.lang.Object obj)
```
  - containsAll
```
public boolean containsAll(java.util.Collection<?> objects)
```
  - addAll
```
public boolean addAll(java.util.Collection<? extends E> elements)
```
  - removeAll
```
public boolean removeAll(java.util.Collection<?> objects)
```
  - retainAll
```
public boolean retainAll(java.util.Collection<?> objects)
```
  - clear
```
public void clear()
```

Class SetExpression<E>

Property Summary

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Property Detail

size

empty

Field Detail

EMPTY_SET

Constructor Detail

SetExpression

Method Detail

getValue

setExpression

getSize

sizeProperty

emptyProperty

isEqualTo

isNotEqualTo

isNull

isNotNull

asString

size

isEmpty

contains

iterator

toArray

toArray

add

remove

containsAll

addAll

removeAll

retainAll

clear