groovy.util
[Java] Enum ObservableList.ChangeType

java.lang.Object
  groovy.util.ObservableList.ChangeType

public enum ObservableList.ChangeType

newValue

public static final Object newValue

oldValue

public static final Object oldValue

List 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 map = new ObservableList( {!(it instanceof Closure)} )
 <p/>
 // skip all properties whose name matches a regex
 def map = new ObservableList( { 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

• ObservableList.ElementAddedEvent - a new element is added to the list
• ObservableList.ElementRemovedEvent - an element is removed from the list
• ObservableList.ElementUpdatedEvent - an element changes value (same as regular PropertyChangeEvent)
• ObservableList.ElementClearedEvent - all elements have been removed from the list
• ObservableList.MultiElementAddedEvent - triggered by calling list.addAll()
• ObservableList.MultiElementRemovedEvent - triggered by calling list.removeAll()/list.retainAll()

Bound properties

• content - read-only.
• size - read-only.

Authors:

Andres Almiray

resolve

public static ChangeType resolve(int ordinal)

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