FDO .NET API Reference

Feature Data Objects

OSGeo::FDO::Commands::Feature::IBaseSelectImp Class Reference
[OSGeo::FDO::Commands::Feature]

Inherits OSGeo::FDO::Commands::IFeatureCommandImp, and OSGeo::FDO::Commands::Feature::IBaseSelect.

Inherited by OSGeo::FDO::Commands::Feature::ISelectAggregatesImp, and OSGeo::FDO::Commands::Feature::ISelectImp.

Inheritance diagram for OSGeo::FDO::Commands::Feature::IBaseSelectImp:

[legend]List of all members.

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Detailed Description

The IBaseSelectImp class is a concrete implementation class for interface IBaseSelect. The IBaseSelect interface defines a base interface for the the FDO ISelect command, which queries for features of a given class that match the specified criteria. Input to the select command includes the name of the class, the list of properties to be returned, and a filter. All but the class name is optional. If the list of properties to be returned is empty then all properties are returned. The filter may be specified either as text or as an expression tree (most likely produced by a query builder). The result of executing a select command is an IFeatureReader reference (see "Reading Features"). If the feature provider supports locking, then the select command can optionally lock all of the features selected, via the ExecuteWithLock method (see "Locking Commands" for more information on locking features).

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Definition at line 43 of file mgIBaseSelectImp.h.

Public Member Functions
__property OSGeo::FDO::Commands::IdentifierCollection *	get_Ordering ()
	Gets the IdentifierCollection that holds the list of order by property names. If empty no ordering is used. This list is initially empty and the caller need to add the property that the command should use as a order by criteria.
__property OSGeo::FDO::Commands::OrderingOption	get_OrderingOption ()
	Gets the ordering option.
__property OSGeo::FDO::Commands::IdentifierCollection *	get_PropertyNames ()
	Gets the IdentifierCollection that holds the list of property names to return with the result. If empty all properties of the specified class are returned.
__property System::Void	set_OrderingOption (OSGeo::FDO::Commands::OrderingOption option)
	Set the ordering option of the selection. This is only used if the ordering collection is not empty.

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