Kanzi  3.9.9
Kanzi Engine C++ API
kanzi::DataObject Class Reference

DataObject is the base class for data. More...

#include <kanzi/core.ui/data/data_object.hpp>

Inheritance diagram for kanzi::DataObject:
[legend]

Public Types

typedef ChildContainer::const_iterator ChildConstIterator
 
typedef ChildContainer::const_reverse_iterator ChildConstReverseIterator
 
typedef vector< DataObjectSharedPtrChildContainer
 
enum  Type {
  Object, Integer, Real, Bool,
  String, Enum, List
}
 Type enumerations for different data object types. More...
 
- Public Types inherited from kanzi::DataContext
typedef function< void()> ModifiedFunction
 Callback function type for change subscriptions. More...
 
typedef shared_ptr< void > ModifiedSubscriptionToken
 Token type that can be used to identify the change subscription. More...
 
- Public Types inherited from kanzi::PropertyObject
typedef PropertyStorageContainer::const_iterator PropertyStorageConstIterator
 
typedef vector< PropertyStoragePtrPropertyStorageContainer
 
typedef PropertyStorageContainer::iterator PropertyStorageIterator
 
typedef intrusive_ptr< AbstractPropertyTypeDescriptor::PropertyStoragePropertyStoragePtr
 
typedef PropertyStorageContainer::reverse_iterator PropertyStorageReverseIterator
 

Public Member Functions

void addChild (const DataObjectSharedPtr &child)
 Adds data object as child of this object. More...
 
ChildConstIterator beginChildren () const
 Returns iterator to start of the child container. More...
 
ChildConstIterator endChildren () const
 Returns iterator in the end of the child container. More...
 
DataObjectSharedPtr findChild (string_view name)
 Tries to find a child with given name. More...
 
DataObjectSharedPtr getChild (size_t index) const
 Retrieves a child object in given index. More...
 
size_t getChildCount () const
 Retrieves the count of child objects in this data object. More...
 
size_t getChildIndex (const DataObject &child) const
 Retrieves the index of a child data object. More...
 
DataObjectSharedPtr getData () override
 DataContext interface. More...
 
string getName () const
 Allows to retrieve the name of the object. More...
 
DataObjectSharedPtr getParent () const
 Retrieves the parent DataObject of this DataObject. More...
 
virtual Type getType () const
 Allows to retrieve the type of the object. More...
 
bool hasChild (const DataObject &child) const
 Checks whether or not the child exists. More...
 
void insertChild (size_t index, const DataObjectSharedPtr &child)
 Inserts data object as child of this object, allows to specify index of the object. More...
 
DataContextSharedPtr lookupDataContext (string_view relativePath) override
 Performs object look-up by path. More...
 
virtual Variant readVariant ()
 Read data object contents into a variant. More...
 
void removeAllChildren ()
 Removes all children. More...
 
void removeChild (const DataObject &child)
 Removes a child object from the list of children. More...
 
void removeChild (size_t index)
 Removes a child object in given index. More...
 
void setName (string_view value)
 Sets the name of the object. More...
 
void setParent (DataObjectSharedPtr parent)
 Assigns a parent DataObject to this DataObject. More...
 
- Public Member Functions inherited from kanzi::DataContext
ModifiedSubscriptionToken addModifiedNotificationHandler (ModifiedFunction callback)
 Allows to subscribe to modifications in this data context. More...
 
template<typename Type >
shared_ptr< Type > lookupDataContextOfType (string_view relativePath)
 
void notifyModified ()
 Triggers modification procedure in this data context, which invokes the subscriptions. More...
 
void removeModifiedNotificationHandler (ModifiedSubscriptionToken token)
 Allows to unsubscribe from modifications in this data context. More...
 
- Public Member Functions inherited from kanzi::Resource
virtual unsigned int getCPUMemoryUsage () const
 Function for getting the memory usage of a resource. More...
 
const string & getName () const
 Gets the resource name. More...
 
const string & getUrl () const
 Gets the resource URL. More...
 
bool isKeepAlive () const
 Tells if the resource has keep alive flag set. More...
 
void reload ()
 
void reloadFromFile (string_view filePath)
 
void reloadFromKzb (KzbFile &kzbFile, ReadOnlyMemoryFile &file, KzbMemoryParser &parser)
 
void setKeepAlive (bool keepAlive)
 Sets the keep alive flag. More...
 
void setUrl (string_view url)
 Sets the resource URL. More...
 
 ~Resource () override
 Destructor. More...
 
- Public Member Functions inherited from kanzi::Object
AppliedStyleEntrySharedPtr applyObjectStyle (kanzi::StyleSharedPtr style)
 Applies a style to an object. More...
 
void applyObjectStyles ()
 Apply all styles for an object node. More...
 
DomaingetDomain () const
 Returns the domain the object belongs to. More...
 
const MetaclassgetDynamicMetaclass () const override
 Returns the metaclass of the dynamic type of the object. More...
 
MainLoopSchedulergetMainLoopScheduler () const
 Returns the MainLoopScheduler instance of the associated Domain. More...
 
detail::MessageDispatcher * getMessageDispatcher () const
 Returns the message dispatcher of the object. More...
 
ResourceManagergetResourceManager () const
 Returns the resource manager of the object. More...
 
ScriptingContextSharedPtr getScriptingContext () const
 Gets the scripting context of the object. More...
 
 Object (Domain *domain)
 
void setScriptingContext (ScriptingContextSharedPtr context)
 Sets the scripting context of the object. More...
 
void unapplyObjectStyle (AppliedStyleEntrySharedPtr appliedStyleEntry)
 
void unapplyObjectStyles ()
 Unapplies and removes all applied styles. More...
 
 ~Object () override
 
- Public Member Functions inherited from kanzi::MetaObject
bool isTypeOf (const Metaclass *objectType) const
 Determines if the type of this object is the given type or derived from it. More...
 
virtual ~MetaObject ()
 
- Public Member Functions inherited from kanzi::PropertyObject
template<typename DataType >
void addPropertyModifier (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::ModifierCallback callback, void *owner)
 
template<typename DataType >
void addPropertyModifierWithoutNotifyingHandlers (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::ModifierCallback callback, void *owner)
 Adds a property modifier without notifying handlers. More...
 
template<typename DataType >
void addPropertyNotificationHandler (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::NotificationCallback callback, void *owner)
 
template<typename DataType >
void addPropertyValueSource (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::TypedValueSource *valueSource, PropertyValuePrecedence precedence, void *ownerPointer)
 
template<typename DataType >
void addPropertyValueSource (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::TypedValueSource *valueSource, PropertyValuePrecedence precedence, AbstractPropertyTypeDescriptor::ValueSourceOwner *owner)
 
PropertyStorageContainer::iterator beginPropertyStorage ()
 Returns the begin iterator to the internal property storage container. More...
 
PropertyStorageContainer::const_iterator beginPropertyStorage () const
 Returns the begin iterator to the internal property storage container. More...
 
void clearPropertyFlag (AbstractPropertyType propertyType, uint32_t flag)
 
void copyLocalValue (const PropertyObject &other, AbstractPropertyType propertyType)
 Copies local value of single property from another object. More...
 
void copyLocalValues (const PropertyObject &other)
 Copies all local values from another object. More...
 
PropertyStorageContainer::iterator endPropertyStorage ()
 Returns the end iterator to the internal property storage container. More...
 
PropertyStorageContainer::const_iterator endPropertyStorage () const
 Returns the end iterator to the internal property storage container. More...
 
template<typename DataType >
PropertyType< DataType >::Traits::ReturnType getAbstractProperty (AbstractPropertyType abstractPropertyType) const
 
template<typename DataType >
PropertyType< DataType >::Traits::ReturnType getAbstractPropertyBase (AbstractPropertyType abstractPropertyType) const
 
template<typename DataType >
optional< typename PropertyType< DataType >::Traits::ReturnType > getOptionalAbstractProperty (AbstractPropertyType abstractPropertyType) const
 
template<typename DataType >
optional< typename PropertyType< DataType >::Traits::ReturnType > getOptionalProperty (const PropertyType< DataType > &propertyType) const
 Evaluates the property value in the same way as the overload above but does not default to the value in property metadata if there are no inputs to the property value. More...
 
template<typename DataType >
optional< typename PropertyType< DataType >::Traits::ReturnType > getOptionalPropertyBase (const PropertyType< DataType > &propertyType) const
 Returns the current value of a property disregarding modifiers, but does not default to the value in property metadata if there are no inputs to the property value. More...
 
template<typename DataType >
PropertyType< DataType >::Traits::ReturnType getProperty (const PropertyType< DataType > &propertyType) const
 Returns the current value of a property type. More...
 
template<typename DataType >
PropertyType< DataType >::Traits::ReturnType getPropertyBase (const PropertyType< DataType > &propertyType) const
 Returns the current value of a property disregarding modifiers. More...
 
template<typename DataType >
size_t getPropertyNotificationHandlerCount (const PropertyType< DataType > &propertyType) const
 Gets number of current notification handlers for given property type. More...
 
bool hasBaseValue (AbstractPropertyType propertyType) const
 Evaluates whether there are any inputs into the property value, disregarding modifiers. More...
 
bool hasLocalValue (AbstractPropertyType propertyType) const
 Evaluates whether there is a local value set for the property. More...
 
bool hasNonClassValue (AbstractPropertyType propertyType) const
 Evaluates whether there is a value of any precedence higher than class default value set for the property. More...
 
bool hasValue (AbstractPropertyType propertyType) const
 Evaluates whether there are any inputs into the property value. More...
 
bool isPropertyFlagSet (AbstractPropertyType propertyType, uint32_t flag) const
 
virtual void onPropertyChanged (AbstractPropertyType propertyType, PropertyNotificationReason reason)
 Virtual function to handle property change notifications. More...
 
 PropertyObject ()
 
void removeKzbProperties (flat_set< AbstractPropertyType > *keepProperties)
 Remove all KZB properties that are not included in a given set. More...
 
void removeKzbProperties ()
 Remove all KZB properties. More...
 
template<typename DataType >
void removeLocalPropertyValueSource (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::TypedValueSource *valueSource, void *ownerPointer)
 
void removeLocalValue (AbstractPropertyType propertyType)
 Removes the local value associated with the property. More...
 
template<typename DataType >
void removePropertyModifier (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::ModifierCallback callback, void *owner)
 
template<typename DataType >
void removePropertyNotificationHandler (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::NotificationCallback callback, void *owner)
 
template<typename DataType >
void removePropertyValueSource (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::TypedValueSource *valueSource, void *ownerPointer)
 
template<typename DataType >
void setAbstractProperty (AbstractPropertyType abstractPropertyType, typename PropertyType< DataType >::Traits::ParameterType value)
 
template<typename DataType >
void setProperty (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Traits::ParameterType value)
 Sets the local value of a property type. More...
 
void setPropertyFlag (AbstractPropertyType propertyType, uint32_t flag)
 
KZ_DEPRECATED void validatePropertyModifiers (AbstractPropertyType propertyType)
 Validates property modifiers and notifies handlers. More...
 
void validatePropertyModifiersAndNotifyHandlers (AbstractPropertyType propertyType)
 Validates property modifiers and notifies handlers. More...
 
virtual ~PropertyObject ()
 

Static Public Member Functions

static DataObjectSharedPtr create (Domain *domain, string_view name)
 Create a DataObject. More...
 
- Static Public Member Functions inherited from kanzi::DataContext
static PropertyTypeEditorInfoSharedPtr makeEditorInfo ()
 
static ResourceSharedPtr getDataContext (const Node &node)
 Gets the value of DataContextProperty. More...
 
static void setDataContext (Node &node, ResourceSharedPtr value)
 Sets the value of DataContextProperty. More...
 
static ResourceSharedPtr getItemsSource (const Node &node)
 Gets the value of ItemsSourceProperty. More...
 
static void setItemsSource (Node &node, ResourceSharedPtr value)
 Sets the value of ItemsSourceProperty. More...
 
- Static Public Member Functions inherited from kanzi::Object
static const MetaclassgetStaticMetaclass ()
 Returns the metaclass of Object class. More...
 
static PropertyTypeEditorInfoSharedPtr makeEditorInfo ()
 Default implementation that returns empty editor info. More...
 
- Static Public Member Functions inherited from kanzi::MetaObject
static const MetaclassgetStaticMetaclass ()
 Returns the metaclass of Object class. More...
 
static PropertyTypeEditorInfoSharedPtr makeEditorInfo ()
 Default implementation that returns empty editor info. More...
 

Protected Member Functions

 DataObject (Domain *domain, string_view name)
 Standard constructor. More...
 
- Protected Member Functions inherited from kanzi::DataContext
 DataContext (Domain *domain, string_view name)
 Protected standard constructor. More...
 
- Protected Member Functions inherited from kanzi::Resource
virtual unsigned int getCPUMemoryUsageOverride () const
 
virtual void reloadFromFileOverride (string_view filePath)
 
virtual void reloadFromKzbOverride (KzbFile &kzbFile, ReadOnlyMemoryFile &file, KzbMemoryParser &parser)
 
virtual void reloadOverride ()
 
 Resource (Domain *domain, string_view name)
 Constructor. More...
 
- Protected Member Functions inherited from kanzi::Object
void initialize ()
 
void onCopy (const Object &other)
 
- Protected Member Functions inherited from kanzi::MetaObject
void initialize ()
 
 MetaObject ()
 
- Protected Member Functions inherited from kanzi::PropertyObject
AbstractPropertyTypeDescriptor::ValueSourceEntryacquireLocalValueSourceEntry (AbstractPropertyTypeDescriptor &descriptor, PropertyStoragePtr &propertyStorage)
 Acquires a local value source entry that is free for the assignment of a value. More...
 
AbstractPropertyTypeDescriptor::ModifierStorageacquireModifierStorage (AbstractPropertyTypeDescriptor &descriptor, AbstractPropertyTypeDescriptor::PropertyStorage &propertyStorage)
 
AbstractPropertyTypeDescriptor::NotificationStorageacquireNotificationStorage (AbstractPropertyTypeDescriptor &descriptor)
 
PropertyStoragePtr acquirePropertyStorage (AbstractPropertyTypeDescriptor &descriptor)
 
template<typename DataType >
void addPropertyModifierBase (const PropertyType< DataType > &propertyType, typename PropertyType< DataType >::Descriptor::ModifierCallback callback, void *owner, bool notify)
 Adds a property modifier entry to the property modifier stack and validates them. More...
 
void addPropertyValueSource (AbstractPropertyTypeDescriptor &descriptor, AbstractPropertyTypeDescriptor::ValueSource *valueSource, PropertyValuePrecedence precedence, void *ownerPointer)
 Internally adds a property value source. More...
 
void addPropertyValueSource (AbstractPropertyTypeDescriptor &descriptor, AbstractPropertyTypeDescriptor::ValueSource *valueSource, PropertyValuePrecedence precedence, AbstractPropertyTypeDescriptor::ValueSourceOwner *owner)
 Internally adds a property value source. More...
 
AbstractPropertyTypeDescriptor::ValueSourceEntryconstructLocalValueSourceEntry (AbstractPropertyTypeDescriptor &descriptor, AbstractPropertyTypeDescriptor::PropertyStorage &propertyStorage)
 
PropertyStoragePtr constructPropertyStorage (AbstractPropertyTypeDescriptor &descriptor)
 
void copyLocalValue (const AbstractPropertyTypeDescriptor::PropertyStorage &otherPropertyStorage)
 Copy local value from property storage. More...
 
AbstractPropertyTypeDescriptor::ModifierStoragefindModifierStorage (AbstractPropertyTypeDescriptor &descriptor)
 
AbstractPropertyTypeDescriptor::NotificationStoragefindNotificationStorage (AbstractPropertyTypeDescriptor &descriptor) const
 
AbstractPropertyTypeDescriptor::PropertyStoragefindPropertyStorage (AbstractPropertyTypeDescriptor &descriptor) const
 Gets the property storage for given property type descriptor. More...
 
PropertyStoragePtr findPropertyStoragePtr (AbstractPropertyTypeDescriptor &descriptor) const
 Gets property storage intrusive pointer which you can use to hold a reference until the end of the operation. More...
 
AbstractPropertyTypeDescriptorfindPropertyTypeDescriptorByNameAndDataType (string_view name, PropertyDataType dataType) const
 Finds a property type descriptor by name and data type. More...
 
AbstractPropertyTypeDescriptorfindPropertyTypeDescriptorByQualifiedNameAndDataType (string_view qualifiedName, PropertyDataType dataType) const
 Like findPropertyTypeDescriptorByNameAndDataType, but only searches by matching with qualified names. More...
 
AbstractPropertyTypeDescriptorfindPropertyTypeDescriptorByUnqualifiedNameAndDataType (string_view unqualifiedName, PropertyDataType dataType) const
 Like findPropertyTypeDescriptorByNameAndDataType, but only searches by matching with unqualified names. More...
 
AbstractPropertyTypeDescriptor::ValueSourcegetClassValueSource (AbstractPropertyTypeDescriptor &descriptor) const
 
AbstractPropertyTypeDescriptor::ValueSourcegetFinalValueSource (AbstractPropertyTypeDescriptor &descriptor) const
 
AbstractPropertyTypeDescriptor::ValueSourcegetNonClassValueSource (AbstractPropertyTypeDescriptor &descriptor) const
 
AbstractPropertyTypeDescriptor::ValueSourcegetTopValueSource (AbstractPropertyTypeDescriptor &descriptor) const
 Gets the top-level value source for a given property descriptor. More...
 
virtual void notifyPropertyHandlers (PropertyStoragePtr &storagePtr, PropertyNotificationReason reason)
 Notifies all property handlers on a property storage. More...
 
void onCopy (const PropertyObject &other)
 
void removeLocalValue (AbstractPropertyTypeDescriptor &descriptor, PropertyStoragePtr &propertyStorage)
 Removes a local value from the given property storage. More...
 
void removePropertyValueSource (AbstractPropertyTypeDescriptor &descriptor, AbstractPropertyTypeDescriptor::ValueSource *valueSource, void *owner)
 Removes a property value source. More...
 
void validatePropertyModifiers (PropertyStoragePtr &propertyStorage)
 Validates property modifiers without notifying handlers. More...
 
void validatePropertyModifiersAndNotifyHandlers (PropertyStoragePtr &propertyStorage)
 Validates property modifiers and notifies handlers. More...
 

Additional Inherited Members

- Static Public Attributes inherited from kanzi::DataContext
static PropertyType< ResourceSharedPtrDataContextProperty
 DataContext property. More...
 
static PropertyType< ResourceSharedPtrItemsSourceProperty
 ItemsSource property. More...
 
- Protected Types inherited from kanzi::DataContext
typedef vector< ModifiedSubscriptionSharedPtrModifiedSubscriptionContainer
 Container for subscriptions. More...
 
typedef shared_ptr< ModifiedSubscriptionModifiedSubscriptionSharedPtr
 Subscription shared pointer type. More...
 
- Protected Types inherited from kanzi::Object
typedef vector< AppliedStyleEntrySharedPtrAppliedStyleContainer
 Applied style container. More...
 
- Protected Attributes inherited from kanzi::DataContext
unsigned int m_notificationPassGuard
 Notification pass guard integer for triggering removal at end. More...
 
ModifiedSubscriptionContainer m_subscriptions
 Subscriptions to data context being modified. More...
 
- Protected Attributes inherited from kanzi::Object
AppliedStyleContainer m_appliedStyles
 Listing of applied styles applied to this object. More...
 

Detailed Description

DataObject is the base class for data.

All data within the data source is described as a tree of data objects. The base class provides support for the hierarchy as the derived classes provide support for different value types.

Member Typedef Documentation

typedef ChildContainer::const_iterator kanzi::DataObject::ChildConstIterator
typedef ChildContainer::const_reverse_iterator kanzi::DataObject::ChildConstReverseIterator

Member Enumeration Documentation

Type enumerations for different data object types.

Enumerator
Object 
Integer 
Real 
Bool 
String 
Enum 
List 

Constructor & Destructor Documentation

kanzi::DataObject::DataObject ( Domain domain,
string_view  name 
)
explicitprotected

Standard constructor.

Parameters
domainThe UI domain.
nameName of the data object.

Member Function Documentation

static DataObjectSharedPtr kanzi::DataObject::create ( Domain domain,
string_view  name 
)
inlinestatic

Create a DataObject.

Parameters
domainThe UI domain.
nameName of the data object.
Returns
DataObject shared ptr.
string kanzi::DataObject::getName ( ) const

Allows to retrieve the name of the object.

Returns
Returns the name of the object.
void kanzi::DataObject::setName ( string_view  value)

Sets the name of the object.

Parameters
valueNew name that is assigned to object.
void kanzi::DataObject::setParent ( DataObjectSharedPtr  parent)

Assigns a parent DataObject to this DataObject.

Parameters
parentThe DataObject to set as the parent DataObject.
Since
Kanzi 3.9.0
DataObjectSharedPtr kanzi::DataObject::getParent ( ) const

Retrieves the parent DataObject of this DataObject.

Returns
The parent DataObject of this DataObject.
Since
Kanzi 3.9.0
size_t kanzi::DataObject::getChildCount ( ) const

Retrieves the count of child objects in this data object.

Returns
Child object count.
DataObjectSharedPtr kanzi::DataObject::getChild ( size_t  index) const

Retrieves a child object in given index.

Returns
Child data object in given index.
size_t kanzi::DataObject::getChildIndex ( const DataObject child) const

Retrieves the index of a child data object.

Returns
Index of the item in question, throws exception if there is no such child.
bool kanzi::DataObject::hasChild ( const DataObject child) const

Checks whether or not the child exists.

Returns
true if there is such child, otherwise false.
void kanzi::DataObject::addChild ( const DataObjectSharedPtr child)

Adds data object as child of this object.

Parameters
childChild object to add.
void kanzi::DataObject::insertChild ( size_t  index,
const DataObjectSharedPtr child 
)

Inserts data object as child of this object, allows to specify index of the object.

Parameters
indexIndex where to add given object.
childChild object to add.
void kanzi::DataObject::removeChild ( const DataObject child)

Removes a child object from the list of children.

Parameters
childChild object to remove.
void kanzi::DataObject::removeChild ( size_t  index)

Removes a child object in given index.

Parameters
indexIndex of the child object to remove.
void kanzi::DataObject::removeAllChildren ( )

Removes all children.

ChildConstIterator kanzi::DataObject::beginChildren ( ) const

Returns iterator to start of the child container.

Returns
Iterator at the beginning of the container.
ChildConstIterator kanzi::DataObject::endChildren ( ) const

Returns iterator in the end of the child container.

Returns
Iterator in the end of the container.
DataObjectSharedPtr kanzi::DataObject::findChild ( string_view  name)

Tries to find a child with given name.

Returns
Child object that was found, or empty pointer if there is no such child.
DataObjectSharedPtr kanzi::DataObject::getData ( )
overridevirtual

DataContext interface.

Implements kanzi::DataContext.

DataContextSharedPtr kanzi::DataObject::lookupDataContext ( string_view  relativePath)
overridevirtual

Performs object look-up by path.

Parameters
relativePathPath of the object where to look at, separated by '.'.
Returns
Data object that was found, or empty pointer if there was no such object.

Implements kanzi::DataContext.


The documentation for this class was generated from the following file: