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OSGeo::FDO::Expression::LOBValue Class Reference

Inherits OSGeo::FDO::Expression::DataValue.

Inherited by OSGeo::FDO::Expression::BLOBValue, and OSGeo::FDO::Expression::CLOBValue.

Inheritance diagram for OSGeo::FDO::Expression::LOBValue:

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List of all members.

Detailed Description

The LOBValue class derives from DataValue and represents a literal BLOB value.


Public Member Functions

__property System::Byte get_Data ()[]
 Gets the LOB data.
__property OSGeo::FDO::Schema::DataType get_DataType ()
 Gets the data type of the LOBValue.
 LOBValue (System::IntPtr unmanaged, System::Boolean autoDelete)
 Constructs a LOBValue object based on an unmanaged instance of the object.
System::Void Process (OSGeo::FDO::Expression::IExpressionProcessor *processor)
 Overrides Expression.Process to pass the LOBValue to the appropriate expression processor operation.
__property System::Void set_Data (System::Byte value[])
 Sets the LOB data.
System::Void SetNull ()
 Sets the LOBValue to a null value.
System::String * ToString ()
 Returns the well defined text representation of this expression.

Static Public Member Functions

System::Byte op_Explicit (OSGeo::FDO::Expression::LOBValue *value)[]
 Transforms the FDO LOB value into a byte array.

Constructor & Destructor Documentation

OSGeo::FDO::Expression::LOBValue::LOBValue System::IntPtr  unmanaged,
System::Boolean  autoDelete
 

Constructs a LOBValue object based on an unmanaged instance of the object.

Parameters:
unmanaged Input A Pointer to the unmanaged object.
autoDelete Input Indicates if the constructed object should be automatically deleted once it no longer referenced.

Member Function Documentation

__property System::Byte OSGeo::FDO::Expression::LOBValue::get_Data  ) 
 

Gets the LOB data.

Returns:
Returns a byte array

Reimplemented in OSGeo::FDO::Expression::BLOBValue, and OSGeo::FDO::Expression::CLOBValue.

__property OSGeo ::FDO ::Schema ::DataType OSGeo::FDO::Expression::LOBValue::get_DataType  ) 
 

Gets the data type of the LOBValue.

Returns:
Returns an DataType

Reimplemented from OSGeo::FDO::Expression::DataValue.

Reimplemented in OSGeo::FDO::Expression::BLOBValue, and OSGeo::FDO::Expression::CLOBValue.

System::Byte OSGeo::FDO::Expression::LOBValue::op_Explicit OSGeo::FDO::Expression::LOBValue value  )  [static]
 

Transforms the FDO LOB value into a byte array.

Parameters:
value Input an FDO LOBValue object
Returns:
Returns a byte array

System::Void OSGeo::FDO::Expression::LOBValue::Process OSGeo::FDO::Expression::IExpressionProcessor processor  ) 
 

Overrides Expression.Process to pass the LOBValue to the appropriate expression processor operation.

Parameters:
processor Input the IExpressionProcessor
Returns:
Returns nothing

Reimplemented from OSGeo::FDO::Expression::Expression.

Reimplemented in OSGeo::FDO::Expression::BLOBValue, and OSGeo::FDO::Expression::CLOBValue.

__property System::Void OSGeo::FDO::Expression::LOBValue::set_Data System::Byte  value[]  ) 
 

Sets the LOB data.

Parameters:
value Input an array of bytes
Returns:
Returns nothing

Reimplemented in OSGeo::FDO::Expression::BLOBValue, and OSGeo::FDO::Expression::CLOBValue.

System::Void OSGeo::FDO::Expression::LOBValue::SetNull  ) 
 

Sets the LOBValue to a null value.

Returns:
Returns nothing

Reimplemented from OSGeo::FDO::Expression::DataValue.

Reimplemented in OSGeo::FDO::Expression::BLOBValue, and OSGeo::FDO::Expression::CLOBValue.

System::String* OSGeo::FDO::Expression::LOBValue::ToString  ) 
 

Returns the well defined text representation of this expression.

Returns:
Returns a text string

Reimplemented from OSGeo::FDO::Expression::Expression.

Reimplemented in OSGeo::FDO::Expression::BLOBValue, and OSGeo::FDO::Expression::CLOBValue.


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