Package groovy.util
Class ObservableMap
- java.lang.Object
-
- groovy.util.ObservableMap
-
- All Implemented Interfaces:
Map
public class ObservableMap extends Object implements Map
Map 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 ObservableMap( {!(it instanceof Closure)} ) // skip all properties whose name matches a regex def map = new ObservableMap( { 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- ObservableMap.PropertyAddedEvent - a new property is added to the map
- ObservableMap.PropertyRemovedEvent - a property is removed from the map
- ObservableMap.PropertyUpdatedEvent - a property changes value (same as regular PropertyChangeEvent)
- ObservableMap.PropertyClearedEvent - all properties have been removed from the map
- ObservableMap.MultiPropertyEvent - triggered by calling map.putAll(), contains Added|Updated events
Bound properties
- content - read-only.
- size - read-only.
-
-
Nested Class Summary
Nested Classes Modifier and Type Class Description static classObservableMap.ChangeTypestatic classObservableMap.MultiPropertyEventstatic classObservableMap.PropertyAddedEventstatic classObservableMap.PropertyClearedEventstatic classObservableMap.PropertyEventstatic classObservableMap.PropertyRemovedEventstatic classObservableMap.PropertyUpdatedEvent
-
Field Summary
Fields Modifier and Type Field Description static StringCLEARED_PROPERTYstatic StringCONTENT_PROPERTYstatic StringSIZE_PROPERTY
-
Constructor Summary
Constructors Constructor Description ObservableMap()ObservableMap(Closure test)ObservableMap(Map delegate)ObservableMap(Map delegate, Closure test)
-
Method Summary
-
Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, toString, wait, wait, wait
-
Methods inherited from interface java.util.Map
compute, computeIfAbsent, computeIfPresent, forEach, getOrDefault, merge, putIfAbsent, remove, replace, replace, replaceAll
-
-
-
-
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
-
CLEARED_PROPERTY
public static final String CLEARED_PROPERTY
- See Also:
- Constant Field Values
-
-
Method Detail
-
getMapDelegate
protected Map getMapDelegate()
-
getTest
protected Closure getTest()
-
getContent
public Map getContent()
-
firePropertyClearedEvent
protected void firePropertyClearedEvent(Map values)
-
firePropertyUpdatedEvent
protected void firePropertyUpdatedEvent(Object key, Object oldValue, Object newValue)
-
fireMultiPropertyEvent
protected void fireMultiPropertyEvent(List<ObservableMap.PropertyEvent> events)
-
fireMultiPropertyEvent
protected void fireMultiPropertyEvent(ObservableMap.PropertyEvent[] events)
-
firePropertyEvent
protected void firePropertyEvent(ObservableMap.PropertyEvent event)
-
fireSizeChangedEvent
protected void fireSizeChangedEvent(int oldValue, int newValue)
-
containsKey
public boolean containsKey(Object key)
- Specified by:
containsKeyin interfaceMap
-
containsValue
public boolean containsValue(Object value)
- Specified by:
containsValuein interfaceMap
-
equals
public boolean equals(Object o)
-
hashCode
public int hashCode()
-
getSize
public int getSize()
-
values
public Collection values()
-
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)
-
-