DataContext acts as a container for data. More...
Classes | |
| interface | ModifiedSubscriptionFunction |
| Callback functions for Modified Subscription events. More... | |
| class | ModifiedSubscriptionToken |
| Token to represent a Modified Subscription. More... | |
Public Member Functions | |
| ModifiedSubscriptionToken | addModifiedNotificationHandler (ModifiedSubscriptionFunction modifiedHandlerFunction) |
| Allows to subscribe to modifications in this data context. More... | |
| DataObject | getData () |
| Retrieves the root object of the underlying data tree. More... | |
| DataContext | lookupDataContext (String relativePath) |
| Performs object look up by path. More... | |
| void | notifyModified () |
| Triggers modification procedure in this data context, which invokes the subscriptions. | |
| void | removeModifiedNotificationHandler (DataContext.ModifiedSubscriptionToken token) |
| Removes a modification subscription. More... | |
 Public Member Functions inherited from Resource | |
| String | getName () |
| Gets the resource name. More... | |
| String | getUrl () |
| Gets the resource URL. More... | |
| void | setKeepAlive (boolean keepAlive) |
| Sets the keep alive flag. More... | |
| Public Member Functions inherited from KanziObject | |
| boolean | equals (Object object) |
| Domain | getDomain () |
| Returns the domain the object belongs to. More... | |
| Metaclass | getDynamicMetaclass () |
| Returns the metaclass of the dynamic type of the object. More... | |
| long | getNative () |
| Gets a pointer to the backing C++ instance. More... | |
| TDataType | getOptionalProperty (PropertyType< TDataType > propertyType) |
| Returns the current value of a property type, but does not use the default value if there are no inputs to the property value. More... | |
| TDataType | getProperty (PropertyType< TDataType > propertyType) |
| Returns the current value of a property type. More... | |
| int | hashCode () |
| boolean | hasValue (PropertyType< TDataType > propertyType) |
| Evaluates whether there are any inputs into the property value. More... | |
| boolean | isStale () |
| Test if the object is stale i.e. More... | |
| void | removeLocalValue (PropertyType< TDataType > propertyType) |
| Removes the local value associated with the property. More... | |
| void | setProperty (PropertyType< TDataType > propertyType, TDataType value) |
| Sets the local value of a property type. More... | |
| ObjectRef< TType > | tryCreateObjectRef (Class< TType > clazz) |
| Tries to create an owning ObjectRef instance to this KanziObject. More... | |
Static Public Attributes | |
| static final Metaclass | metaclass |
| The Metaclass for the class. More... | |
| Static Public Attributes inherited from Resource | |
| static final Metaclass | metaclass |
| The Metaclass for the class. More... | |
| Static Public Attributes inherited from KanziObject | |
| static final Metaclass | metaclass = new AbstractMetaclass("Kanzi.Object") |
| The Metaclass for the class. | |
Additional Inherited Members | |
| Public Attributes inherited from ResourceMetadata | |
| AbstractMetaclass | metaclass = new AbstractMetaclass("Kanzi.Resource") |
| Metaclass for Resource. | |
| Public Attributes inherited from DataContextMetadata | |
| DynamicPropertyType< Resource > | DataContextProperty |
| Source of data for this node and its descendants. More... | |
| DynamicPropertyType< Resource > | ItemsSourceProperty |
| Data object which provides data sources for list items. More... | |
| AbstractMetaclass | metaclass = new AbstractMetaclass("Kanzi.DataContext") |
| Metaclass for DataContext. | |
DataContext acts as a container for data.
All data within the data context is described as a tree of data objects. The class provides access and look-up functionality of the contained data objects.
| ModifiedSubscriptionToken addModifiedNotificationHandler | ( | ModifiedSubscriptionFunction | modifiedHandlerFunction | ) |
Allows to subscribe to modifications in this data context.
| modifiedHandlerFunction | Callback that is invoked when a change occurs in this data context. |
| DataObject getData | ( | ) |
Retrieves the root object of the underlying data tree.
| DataContext lookupDataContext | ( | String | relativePath | ) |
Performs object look up by path.
| relativePath | Path of the object where to look at, separated by '.' |
| void removeModifiedNotificationHandler | ( | DataContext.ModifiedSubscriptionToken | token | ) |
Removes a modification subscription.
| token | Token to identify the subscription that should be removed. |
