MgReader Class Reference
[MgReader]
Inherits MgSerializable.
Inherited by MgDataReader, MgFeatureReader, and MgSqlDataReader.
Detailed Description
Provides a forward-only, read-only iterator for reading data. You must call ReadNext before you can access any data. This is a base class for MgDataReader, MgFeatureReader, and MgSqlDataReader.Public Member Functions | |
| virtual void | Close ()=0 |
| Closes the object, freeing any resources it may be holding. | |
| virtual MgByteReader * | GetBLOB (CREFSTRING propertyName)=0 |
| Gets the BLOB value of the specified property. | |
| virtual bool | GetBoolean (CREFSTRING propertyName)=0 |
| Gets the Boolean value of the specified property. | |
| virtual BYTE | GetByte (CREFSTRING propertyName)=0 |
| Gets the Byte value of the specified property. | |
| virtual MgByteReader * | GetCLOB (CREFSTRING propertyName)=0 |
| Gets the CLOB value of the specified property. | |
| virtual MgDateTime * | GetDateTime (CREFSTRING propertyName)=0 |
| Gets the MgDateTime value of the specified property. | |
| virtual double | GetDouble (CREFSTRING propertyName)=0 |
| Gets the Double value of the specified property. | |
| virtual MgByteReader * | GetGeometry (CREFSTRING propertyName)=0 |
| Gets the Geometry for the specified property. | |
| virtual INT16 | GetInt16 (CREFSTRING propertyName)=0 |
| Gets the 16 bit integer value of the specified property. | |
| virtual INT32 | GetInt32 (CREFSTRING propertyName)=0 |
| Gets the 32 bit integer value of the specified property. | |
| virtual INT64 | GetInt64 (CREFSTRING propertyName)=0 |
| Gets the 64 bit integer value of the specified property. | |
| virtual INT32 | GetPropertyCount ()=0 |
| Gets the number of properties in the feature currently being read. | |
| virtual STRING | GetPropertyName (INT32 index)=0 |
| Gets the name of the property at the given ordinal position. | |
| virtual INT32 | GetPropertyType (CREFSTRING propertyName)=0 |
| Gets the type of the property with the specified name. See MgPropertyType for the list of possible values. | |
| virtual MgRaster * | GetRaster (CREFSTRING propertyName)=0 |
| Gets the raster object of the specified property. | |
| virtual INT32 | GetReaderType ()=0 |
| Get the type of this reader. See MgReaderType for a list of the possible values. | |
| virtual float | GetSingle (CREFSTRING propertyName)=0 |
| Gets the Single value of the specified property. | |
| virtual STRING | GetString (CREFSTRING propertyName)=0 |
| Gets the string value of the specified property. | |
| virtual bool | IsNull (CREFSTRING propertyName)=0 |
| Determines whether the value of the specified property is null. | |
| virtual bool | ReadNext ()=0 |
| Advances the reader to the next item and determines whether there is another object to read. | |