CCFXException Class

An abstract class that represents an exception thrown during processing of a ColdFusion Extension (CFX) procedure.

Exceptions of this type can be thrown by CCFXRequest Class, CCFXQuery Class, and CCFXStringSet Class. Your ColdFusion Extension code must be written to handle exceptions of this type. For more information, see CCFXRequest::ThrowException and CCFXRequest::ReThrowException.

Class members

virtual LPCSTR GetError()

The CCFXException::GetError function returns a general error message.

virtual LPCSTR GetDiagnostic()

The CCFXException::GetDiagnostics function returns detailed error information.

CCFXException::GetError

Description

Provides basic user output for exceptions that occur during processing.

CCFXException::GetDiagnostics

Description

Provides detailed user output for exception that occur during processing.

Example

This code block shows how GetError and GetDiagnostics work with ThrowException and ReThrowException.

// Write output back to the user here...

pRequest->Write( "Hello from CFX_FOO2!" ) ;

pRequest->ThrowException("User Error", "You goof'd...");



// Output optional debug info

if ( pRequest->Debug() )

{

          pRequest->WriteDebug( "Debug info..." ) ;

}



// Catch Cold Fusion exceptions & re-raise them

catch( CCFXException* e )

{

          // This is how you would pull the error information

          LPCTSTR strError = e->GetError();

          LPCTSTR strDiagnostic = e->GetDiagnostics();



          pRequest->ReThrowException( e ) ;

}



// Catch ALL other exceptions and throw them as

// Cold Fusion exceptions (DO NOT REMOVE! --

// this prevents the server from crashing in

// case of an unexpected exception)

catch( ... )

{

          pRequest->ThrowException(

          "Error occurred in tag CFX_FOO2",

          "Unexpected error occurred while processing tag." ) ;

}

CFML Reference
ColdFusion C++ CFX Reference