MgLayerBase Class Reference

Gets and sets properties of a layer. More...

Inheritance diagram for MgLayerBase:

List of all members.

Classes
struct	IdProperty
Public Member Functions
virtual MgTransaction *	BeginTransaction ()
	Starts a transaction on the this layer. The FDO provider indicated by the layer's Feature Source must support transactions.
virtual INT32	DeleteFeatures (CREFSTRING filter, MgTransaction *transaction)
	Deletes all features that match the given filter.
virtual void	ForceRefresh ()
	Forces the data for this layer to be refreshed during the next map update.
virtual MgClassDefinition *	GetClassDefinition ()
virtual bool	GetDisplayInLegend ()
	Determines whether an entry for the layer should appear in the legend.
virtual bool	GetExpandInLegend ()
	Determines whether the entry for the layer should initially be expanded in the legend, if possible.
virtual STRING	GetFeatureClassName ()
virtual STRING	GetFeatureGeometryName ()
virtual STRING	GetFeatureSourceId ()
	Gets the feature source associated with this layer.
virtual STRING	GetFilter ()
virtual MgLayerGroup *	GetGroup ()
virtual MgResourceIdentifier *	GetLayerDefinition ()
	Gets the layer's definition.
virtual INT32	GetLayerType ()
	Gets the type of the layer.
virtual STRING	GetLegendLabel ()
virtual STRING	GetName ()
	Gets the name of the layer.
virtual STRING	GetObjectId ()
	Gets a unique identifier for this layer.
virtual bool	GetSelectable ()
	Determines whether features on the layer are selectable.
virtual MgSpatialContextReader *	GetSpatialContexts (bool bActiveOnly)
	Gets all of the spatial contexts available in the layer or just the active one.
virtual bool	GetVisible ()
	Determines whether the layer is potentially visible.
virtual MgFeatureReader *	InsertFeatures (MgPropertyCollection *properties, MgTransaction *transaction)
	Inserts a new feature into the specified feature class of the specified Feature Source.
virtual MgFeatureReader *	InsertFeatures (MgBatchPropertyCollection *properties, MgTransaction *transaction)
	Inserts a set of new features into the specified feature class of the specified Feature Source.
virtual bool	IsVisible ()
	Returns the actual visibility of the layer.
	MgLayerBase (MgResourceIdentifier *layerDefinition, MgResourceService *resourceService)
	Creates an MgLayerBase object from a layer definition.
virtual bool	NeedsRefresh ()
	Determines whether the data for this layer will be refreshed during the next map update.
virtual MgDataReader *	SelectAggregate (MgFeatureAggregateOptions *options)
	Selects groups of features from a feature source and applies filters to each of the groups according to the criteria set in the MgFeatureAggregateOptions argument. If you want to apply the criteria to all features without grouping them, use the MgFeatureService::SelectFeatures Method . See Filters and expressions .
virtual MgFeatureReader *	SelectFeatures (MgFeatureQueryOptions *options)
	Selects features from a feature source according to the criteria set in the MgFeatureQueryOptions argument The criteria are applied to all of the features in the feature source. If you want to apply the criteria to a subset of the features, use the MgFeatureService::SelectAggregate Method . See Filters and expressions .
virtual MgFeatureReader *	SelectFeatures (MgFeatureQueryOptions *options, CREFSTRING coordinateSystem)
	Selects features from a feature source according to the criteria set in the MgFeatureQueryOptions argument The criteria are applied to all of the features in the feature source. If you want to apply the criteria to a subset of the features, use the MgFeatureService::SelectAggregate Method . See Filters and expressions .
virtual void	SetDisplayInLegend (bool displayInLegend)
virtual void	SetGroup (MgLayerGroup *group)
virtual void	SetLayerDefinition (MgResourceIdentifier *layerDefinition, MgResourceService *resourceService)
virtual void	SetLegendLabel (CREFSTRING legendLabel)
virtual void	SetName (CREFSTRING name)
virtual void	SetSelectable (bool selectable)
virtual void	SetVisible (bool visible)
virtual MgPropertyCollection *	UpdateFeatures (MgFeatureCommandCollection *commands)
	Executes the MgDeleteFeatures, MgInsertFeatures, MgUpdateFeatures, MgLockFeatures or MgUnlockFeatures commands contained in the given MgFeatureCommandCollection object.
virtual MgPropertyCollection *	UpdateFeatures (MgFeatureCommandCollection *commands, MgTransaction *transaction)
	Executes the MgDeleteFeatures, MgInsertFeatures, MgUpdateFeatures, MgLockFeatures or MgUnlockFeatures commands contained in the given MgFeatureCommandCollection object.
virtual INT32	UpdateMatchingFeatures (MgPropertyCollection *properties, CREFSTRING filter, MgTransaction *transaction)
	Updates all features that match the given filter with the specified property values.

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Detailed Description

Gets and sets properties of a layer.