[Java] Enum ChangeType

  • groovy.util.ObservableList.ChangeType

Enum Constants Summary

Enum constants classes
Enum constant Description
ADDED
CLEARED
MULTI_ADD
MULTI_REMOVE
NONE
REMOVED
UPDATED

Field Summary

Fields
Modifiers Name Description
static Object newValue
static Object oldValue List decorator that will trigger PropertyChangeEvents when a value changes.

Methods Summary

Methods
Type Params Return Type Name and description
static ChangeType resolve(int ordinal)

Inherited Methods Summary

Inherited Methods
Methods inherited from class Name
class Object wait, wait, wait, equals, toString, hashCode, getClass, notify, notifyAll

Enum Constant Detail

ObservableList.ChangeType ADDED

ObservableList.ChangeType CLEARED

ObservableList.ChangeType MULTI_ADD

ObservableList.ChangeType MULTI_REMOVE

ObservableList.ChangeType NONE

ObservableList.ChangeType REMOVED

ObservableList.ChangeType UPDATED

Field Detail

public static final Object newValue

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)} )

 // 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

Method Detail

public static ChangeType resolve(int ordinal)

© 2003-2020 The Apache Software Foundation
Licensed under the Apache license.
https://docs.groovy-lang.org/2.4.21/html/gapi/groovy/util/ObservableList.ChangeType.html