Package org.eclipse.core.databinding.property.map

Class DelegatingMapProperty<S,K,V>

java.lang.Object

org.eclipse.core.databinding.property.map.MapProperty<S,K,V>

org.eclipse.core.databinding.property.map.DelegatingMapProperty<S,K,V>

Type Parameters:

S - type of the source object

K - type of the keys to the map

V - type of the values in the map

All Implemented Interfaces:

IProperty, IMapProperty<S,K,V>

public abstract class DelegatingMapProperty<S,K,V>
extends MapProperty<S,K,V>

Since:

1.2

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	DelegatingMapProperty()
protected	DelegatingMapProperty(Object keyType, Object valueType)

Method Summary

Modifier and Type	Method	Description
protected abstract IMapProperty<S,K,V>	doGetDelegate(S source)	Returns the property to delegate to for the specified source object.
protected Map<K,V>	doGetMap(S source)	Returns a Map with the current contents of the source's map property
protected void	doSetMap(S source, Map<K,V> map)	Updates the property on the source with the specified change.
protected void	doUpdateMap(S source, MapDiff<K,V> diff)	Updates the property on the source with the specified change.
IMapProperty<S,K,V>	getDelegate(S source)	Returns the property to delegate to for the specified source object.
Object	getKeyType()	Returns the element type of the map's key set or null if the key set is untyped.
Object	getValueType()	Returns the element type of the map's values collection or null if the collection is untyped.
IObservableMap<K,V>	observe(Realm realm, S source)	Returns an observable map observing this map property on the given property source
IObservableMap<K,V>	observe(S source)	Returns an observable map observing this map property on the given property source

Methods inherited from class org.eclipse.core.databinding.property.map.MapProperty

getMap, mapFactory, mapFactory, observeDetail, setMap, updateMap, values

Methods inherited from class java.lang.Object

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

Constructor Detail

DelegatingMapProperty

protected DelegatingMapProperty()

DelegatingMapProperty

protected DelegatingMapProperty(Object keyType,
                                Object valueType)

Method Detail

getDelegate

public final IMapProperty<S,K,V> getDelegate(S source)

Returns the property to delegate to for the specified source object. Repeated calls to this method with the same source object returns the same delegate instance.

Parameters:

source - the property source (may be null)

Returns:

the property to delegate to for the specified source object.

doGetDelegate

protected abstract IMapProperty<S,K,V> doGetDelegate(S source)

Returns the property to delegate to for the specified source object. Implementers must ensure that repeated calls to this method with the same source object returns the same delegate instance.

Parameters:

source - the property source

Returns:

the property to delegate to for the specified source object.

getKeyType

public Object getKeyType()

Description copied from interface: IMapProperty

Returns the element type of the map's key set or null if the key set is untyped.

Returns:

the element type of the map's key set or null if the key set is untyped.

getValueType

public Object getValueType()

Description copied from interface: IMapProperty

Returns the element type of the map's values collection or null if the collection is untyped.

Returns:

the element type of the map's values collection or null if the collection is untyped.

doGetMap

protected Map<K,V> doGetMap(S source)

Description copied from class: MapProperty

Returns a Map with the current contents of the source's map property

Overrides:

doGetMap in class MapProperty<S,K,V>

Parameters:

source - the property source

Returns:

a Map with the current contents of the source's map property

doSetMap

protected void doSetMap(S source,
                        Map<K,V> map)

Description copied from class: MapProperty

Updates the property on the source with the specified change.

Overrides:

doSetMap in class MapProperty<S,K,V>

Parameters:

source - the property source

map - the new map

doUpdateMap

protected void doUpdateMap(S source,
                           MapDiff<K,V> diff)

Description copied from class: MapProperty

Updates the property on the source with the specified change.

Overrides:

doUpdateMap in class MapProperty<S,K,V>

Parameters:

source - the property source

diff - a diff describing the change

observe

public IObservableMap<K,V> observe(S source)

Description copied from interface: IMapProperty

Returns an observable map observing this map property on the given property source

Specified by:

observe in interface IMapProperty<S,K,V>

Overrides:

observe in class MapProperty<S,K,V>

Parameters:

source - the property source

Returns:

an observable map observing this map-typed property on the given property source

observe

public IObservableMap<K,V> observe(Realm realm,
                                         S source)

Description copied from interface: IMapProperty

Returns an observable map observing this map property on the given property source

Parameters:

realm - the observable's realm

source - the property source

Returns:

an observable map observing this map-typed property on the given property source