Package com.hybris.cockpitng.core.model.impl

Class AbstractObservable

java.lang.Object

com.hybris.cockpitng.core.model.impl.AbstractObservable

All Implemented Interfaces:

Observable

Direct Known Subclasses:

DefaultWidgetModel, FullTextSearchFilter, ObservableMap, ValidationResult

public class AbstractObservable
extends java.lang.Object
implements Observable

Field Summary

Fields

Modifier and Type	Field	Description
protected java.lang.Object	mutex

Constructor Summary

Constructors

Constructor	Description
AbstractObservable()

Method Summary

Modifier and Type	Method	Description
void	addObserver(java.lang.String key, ValueObserver observer)	Registers a ValueObserver for changes of values.
protected boolean	alreadyExists(ValueObserver observer, java.util.List<ValueObserver> observers)
void	changed()	Informs observers that some values were changed.
void	changed(java.lang.String key)	Informs observers that some value has changed.
protected java.util.Set<java.lang.String>	getObservedValues()
protected java.util.List<ValueObserver>	getObservers(java.lang.String key)
void	removeObserver(ValueObserver observer)	Removes a previously registered ValueObserver for any key.
void	removeObserver(java.lang.String key, ValueObserver observer)	Removes a previously registered ValueObserver.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.hybris.cockpitng.core.model.Observable

addObserver

Field Detail

mutex

protected final java.lang.Object mutex

Constructor Detail

AbstractObservable

public AbstractObservable()

Method Detail

getObservedValues

protected java.util.Set<java.lang.String> getObservedValues()

getObservers

protected java.util.List<ValueObserver> getObservers(java.lang.String key)

changed

public void changed()

Description copied from interface: Observable

Informs observers that some values were changed.

Specified by:

changed in interface Observable

changed

public void changed(java.lang.String key)

Description copied from interface: Observable

Informs observers that some value has changed.

Specified by:

changed in interface Observable

Parameters:

key - name of value that has changed

alreadyExists

protected boolean alreadyExists(ValueObserver observer,
                                java.util.List<ValueObserver> observers)

addObserver

public void addObserver(java.lang.String key,
                        ValueObserver observer)

Description copied from interface: Observable

Registers a ValueObserver for changes of values. The observer will be notified each time a value related to the given key is changed.

i.e. if the observer is registered for product.media.code it will be notified if value on any level of the key (product, product.media or product.media.code) was changed. Also for product.media it will be notified, if product.media.code has changed.

Each model observer may be registered only once (next registrations will be ignored). Model observers are by default compared by their #equals(Object) method. To change this behaviour, observer may implement Identifiable interface to introduce observer's identity.

Specified by:

addObserver in interface Observable

Parameters:

key - attribute for changes of which the observer is interested

observer - the observer to be notified about changes

See Also:

Observable.addObserver(ValueObserver)

removeObserver

public void removeObserver(java.lang.String key,
                           ValueObserver observer)

Description copied from interface: Observable

Removes a previously registered ValueObserver.

Specified by:

removeObserver in interface Observable

Parameters:

key - attribute for changes of which the observer was interested

observer - the observer to be removed

See Also:

Observable.addObserver(String, ValueObserver), Observable.removeObserver(ValueObserver)

removeObserver

public void removeObserver(ValueObserver observer)

Description copied from interface: Observable

Removes a previously registered ValueObserver for any key.

Specified by:

removeObserver in interface Observable

Parameters:

observer - the observer to be removed

See Also:

Observable.addObserver(ValueObserver), Observable.removeObserver(String, ValueObserver)