ObservableSet (Groovy 2.4.3)

java.lang.Object
- groovy.util.ObservableSet<E>

All Implemented Interfaces:

Iterable<E>, Collection<E>, Set<E>
```
public class ObservableSet<E>
extends Object
implements Set<E>
```
Set decorator that will trigger PropertyChangeEvents when a value changes.
An optional Closure may be specified and will work as a filter, if it returns true the property will trigger an event (if the value indeed changed), otherwise it won't. The Closure may receive 1 or 2 parameters, the single one being the value, the other one both the key and value, for example:
```
 // skip all properties whose value is a closure
 def set = new ObservableSet( {!(it instanceof Closure)} )
 <p/>
 // skip all properties whose name matches a regex
 def set = new ObservableSet( { name, value -> !(name =˜ /[A-Z+]/) } )
 
```
The current implementation will trigger specialized events in the following scenarios, you need not register a different listener as those events extend from PropertyChangeEvent
- ObservableSet.ElementAddedEvent - a new element is added to the set
- ObservableSet.ElementRemovedEvent - an element is removed from the set
- ObservableSet.ElementUpdatedEvent - an element changes value (same as regular PropertyChangeEvent)
- ObservableSet.ElementClearedEvent - all elements have been removed from the list
- ObservableSet.MultiElementAddedEvent - triggered by calling set.addAll()
- ObservableSet.MultiElementRemovedEvent - triggered by calling set.removeAll()/set.retainAll()
Bound properties
- content - read-only.
- size - read-only.
Author:

Andres Almiray

Nested Class Summary

Nested Classes
Modifier and Type	Class and Description
`static class`	`ObservableSet.ChangeType`
`static class`	`ObservableSet.ElementAddedEvent`
`static class`	`ObservableSet.ElementClearedEvent`
`static class`	`ObservableSet.ElementEvent`
`static class`	`ObservableSet.ElementRemovedEvent`
`static class`	`ObservableSet.MultiElementAddedEvent`
`static class`	`ObservableSet.MultiElementRemovedEvent`
`protected class`	`ObservableSet.ObservableIterator<E>`

Field Summary

Fields
Modifier and Type Field and Description

static String CONTENT_PROPERTY

static String SIZE_PROPERTY

Fields
Modifier and Type	Field and Description
`static String`	`CONTENT_PROPERTY`
`static String`	`SIZE_PROPERTY`

Constructor Summary

Constructors
Constructor and Description

ObservableSet()

ObservableSet(Closure test)

ObservableSet(Set<E> delegate)

ObservableSet(Set<E> delegate, Closure test)

Constructors
Constructor and Description
`ObservableSet()`
`ObservableSet(Closure test)`
`ObservableSet(Set<E> delegate)`
`ObservableSet(Set<E> delegate, Closure test)`

Method Summary

Methods
Modifier and Type	Method and Description
`boolean`	`add(E e)`
`boolean`	`addAll(Collection<? extends E> c)`
`void`	`addPropertyChangeListener(PropertyChangeListener listener)`
`void`	`addPropertyChangeListener(String propertyName, PropertyChangeListener listener)`
`void`	`clear()`
`boolean`	`contains(Object o)`
`boolean`	`containsAll(Collection<?> objects)`
`protected void`	`fireElementAddedEvent(Object element)`
`protected void`	`fireElementClearedEvent(List values)`
`protected void`	`fireElementEvent(ObservableSet.ElementEvent event)`
`protected void`	`fireElementRemovedEvent(Object element)`
`protected void`	`fireMultiElementAddedEvent(List values)`
`protected void`	`fireMultiElementRemovedEvent(List values)`
`protected void`	`fireSizeChangedEvent(int oldValue, int newValue)`
`Set<E>`	`getContent()`
`protected Set<E>`	`getDelegateSet()`
`PropertyChangeListener[]`	`getPropertyChangeListeners()`
`PropertyChangeListener[]`	`getPropertyChangeListeners(String propertyName)`
`protected Closure`	`getTest()`
`boolean`	`hasListeners(String propertyName)`
`boolean`	`isEmpty()`
`Iterator<E>`	`iterator()`
`boolean`	`remove(Object o)`
`boolean`	`removeAll(Collection<?> c)`
`void`	`removePropertyChangeListener(PropertyChangeListener listener)`
`void`	`removePropertyChangeListener(String propertyName, PropertyChangeListener listener)`
`boolean`	`retainAll(Collection<?> c)`
`int`	`size()`
`Object[]`	`toArray()`
`<T> T[]`	`toArray(T[] ts)`

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

Methods inherited from interface java.util.Set
equals, hashCode

Field Detail
- SIZE_PROPERTY
```
public static final String SIZE_PROPERTY
```
  See Also:
  Constant Field Values
- CONTENT_PROPERTY
```
public static final String CONTENT_PROPERTY
```
  See Also:
  Constant Field Values

Constructor Detail

ObservableSet
```
public ObservableSet()
```

ObservableSet
```
public ObservableSet(Set<E> delegate)
```

ObservableSet
```
public ObservableSet(Closure test)
```

ObservableSet

public ObservableSet(Set<E> delegate,
             Closure test)

Method Detail

getContent
```
public Set<E> getContent()
```

getDelegateSet
```
protected Set<E> getDelegateSet()
```

getTest
```
protected Closure getTest()
```

fireElementAddedEvent

protected void fireElementAddedEvent(Object element)

fireMultiElementAddedEvent

protected void fireMultiElementAddedEvent(List values)

fireElementClearedEvent

protected void fireElementClearedEvent(List values)

fireElementRemovedEvent

protected void fireElementRemovedEvent(Object element)

fireMultiElementRemovedEvent

protected void fireMultiElementRemovedEvent(List values)

fireElementEvent

protected void fireElementEvent(ObservableSet.ElementEvent event)

fireSizeChangedEvent

protected void fireSizeChangedEvent(int oldValue,
                        int newValue)

addPropertyChangeListener

public void addPropertyChangeListener(PropertyChangeListener listener)

addPropertyChangeListener

public void addPropertyChangeListener(String propertyName,
                             PropertyChangeListener listener)

getPropertyChangeListeners

public PropertyChangeListener[] getPropertyChangeListeners()

getPropertyChangeListeners

public PropertyChangeListener[] getPropertyChangeListeners(String propertyName)

removePropertyChangeListener

public void removePropertyChangeListener(PropertyChangeListener listener)

removePropertyChangeListener

public void removePropertyChangeListener(String propertyName,
                                PropertyChangeListener listener)

hasListeners

public boolean hasListeners(String propertyName)

size
```
public int size()
```
Specified by:

size in interface Collection<E>

Specified by:

size in interface Set<E>

isEmpty
```
public boolean isEmpty()
```
Specified by:

isEmpty in interface Collection<E>

Specified by:

isEmpty in interface Set<E>

contains
```
public boolean contains(Object o)
```
Specified by:

contains in interface Collection<E>

Specified by:

contains in interface Set<E>

iterator
```
public Iterator<E> iterator()
```
Specified by:

iterator in interface Iterable<E>

Specified by:

iterator in interface Collection<E>

Specified by:

iterator in interface Set<E>

toArray
```
public Object[] toArray()
```
Specified by:

toArray in interface Collection<E>

Specified by:

toArray in interface Set<E>

toArray
```
public <T> T[] toArray(T[] ts)
```
Specified by:

toArray in interface Collection<E>

Specified by:

toArray in interface Set<E>

add
```
public boolean add(E e)
```
Specified by:

add in interface Collection<E>

Specified by:

add in interface Set<E>

remove
```
public boolean remove(Object o)
```
Specified by:

remove in interface Collection<E>

Specified by:

remove in interface Set<E>

containsAll
```
public boolean containsAll(Collection<?> objects)
```
Specified by:

containsAll in interface Collection<E>

Specified by:

containsAll in interface Set<E>

addAll
```
public boolean addAll(Collection<? extends E> c)
```
Specified by:

addAll in interface Collection<E>

Specified by:

addAll in interface Set<E>

retainAll
```
public boolean retainAll(Collection<?> c)
```
Specified by:

retainAll in interface Collection<E>

Specified by:

retainAll in interface Set<E>

removeAll
```
public boolean removeAll(Collection<?> c)
```
Specified by:

removeAll in interface Collection<E>

Specified by:

removeAll in interface Set<E>

clear
```
public void clear()
```
Specified by:

clear in interface Collection<E>

Specified by:

clear in interface Set<E>

Class ObservableSet<E>

Nested Class Summary

Field Summary

Constructor Summary

Method Summary

Methods inherited from class java.lang.Object

Methods inherited from interface java.util.Set

Field Detail

SIZE_PROPERTY

CONTENT_PROPERTY

Constructor Detail

ObservableSet

ObservableSet

ObservableSet

ObservableSet

Method Detail

getContent

getDelegateSet

getTest

fireElementAddedEvent

fireMultiElementAddedEvent

fireElementClearedEvent

fireElementRemovedEvent

fireMultiElementRemovedEvent

fireElementEvent

fireSizeChangedEvent

addPropertyChangeListener

addPropertyChangeListener

getPropertyChangeListeners

getPropertyChangeListeners

removePropertyChangeListener

removePropertyChangeListener

hasListeners

size

isEmpty

contains

iterator

toArray

toArray

add

remove

containsAll

addAll

retainAll

removeAll

clear