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d_Error Class Reference

#include <d_Error.h>

List of all members.

Public Types
typedef d_Long	kind
Public Methods
	d_Error ()
	d_Error (kind iKind)
	d_Error (const d_Error &iSource)
	~d_Error ()
virtual const char *	what () const throw ()
kind	get_kind ()
void	set_kind (kind iKind)
d_Error *	get_detail ()
void	set_detail (d_Error *iDetail)
bool	contains (kind iKind)
d_Error &	operator<< (const d_String &iInfo)
d_Error &	operator<< (d_ULong iInfo)
d_Error &	operator<< (const char *iInfo)
d_Error &	operator<< (const d_Error &iInfo)

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Detailed Description

Orient ODBMS exceptions and errors.

Orient exceptions are treated by raising d_Error objects.

For this reason each database operation (object management, queries, etc.) had to be included inside a C++ try-catch block. This means that there is no need to check the result at every database operation, but rather exception raised in a try block will be handled in the catch block (full C++ integration).

It inherits from C++ exception class.

LOCATION: d_Error.h

USAGE: try { ... } catch( d_Error* <err-object> ) { ... }

Where:

<ERR-OBJECT>: NAME OF D_ERROR OBJECT CAUGHT.

EXAMPLES: try { ... db.open( "business" ); ... } catch( d_Error* err ) { * CATCH DATABASE ERRORS cerr << "Database error :";

* SWITCHING ERROR KIND switch( err->get_kind() ) { case d_Error::d_Error_DatabaseOpen: cerr << "Database not open"; break;

default: cerr << "Generic"; } delete err; }

ODMG: Compliant

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Member Typedef Documentation

typedef d_Long d_Error::kind

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Constructor & Destructor Documentation

d_Error::d_Error (    )

Default Constructor. ODMG : Compliant

d_Error::d_Error (  kind    iKind )

Create a d_Error object specifying error kind. Create a d_Error object with error kind equal to . ODMG : Compliant

d_Error::d_Error (  const d_Error &    iSource )

Copy Constructor. ODMG : Compliant

d_Error::~d_Error (    )

Destructor. ODMG : Compliant

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Member Function Documentation

bool d_Error::contains (  kind    iKind )

Check if contains the kind requested in the current object and in the detail objects. ODMG : Extension

d_Error * d_Error::get_detail (    )

Get the Detail error if any, otherwise null. ODMG : Extension

d_Error::kind d_Error::get_kind (    )

Returns error's kind. ODMG : Compliant

d_Error & d_Error::operator<< (  const d_Error &    iInfo )

Append the message of another d_Error object. ODMG : Compliant

d_Error & d_Error::operator<< (  const char *    iInfo )

Append a c-string to the error message. ODMG : Compliant

d_Error & d_Error::operator<< (  d_ULong    iInfo )

Append a integer to the error message. ODMG : Compliant

d_Error & d_Error::operator<< (  const d_String &    iInfo )

Append a string to the error message. ODMG : Compliant

void d_Error::set_detail (  d_Error *    iDetail )

Set the Detail error. ODMG : Extension

void d_Error::set_kind (  kind    iKind )

Set error's kind. ODMG : Compliant

const char * d_Error::what (    )  const throw () [virtual]

Returns a message that describes the error. ODMG : Compliant

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The documentation for this class was generated from the following files:

• d_Error.h
• d_Error.cpp

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