drizzled::plugin::Ha_delete_table_error_handler Class Reference

Inheritance diagram for drizzled::plugin::Ha_delete_table_error_handler:

List of all members.

Public Member Functions
virtual bool	handle_error (drizzled::error_t sql_errno, const char *message, DRIZZLE_ERROR::enum_warning_level level, Session *session)
Public Attributes
char	buff [DRIZZLE_ERRMSG_SIZE]

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Detailed Description

An interceptor to hijack the text of the error message without setting an error in the thread. We need the text to present it in the form of a warning to the user.

Definition at line 405 of file storage_engine.cc.

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Member Function Documentation

bool drizzled::plugin::Ha_delete_table_error_handler::handle_error	(	drizzled::error_t	sql_errno,
		const char *	message,
		DRIZZLE_ERROR::enum_warning_level	level,
		Session *	session
	)		[virtual]

Handle an error condition. This method can be implemented by a subclass to achieve any of the following:

• mask an error internally, prevent exposing it to the user,
• mask an error and throw another one instead. When this method returns true, the error condition is considered 'handled', and will not be propagated to upper layers. It is the responsability of the code installing an internal handler to then check for trapped conditions, and implement logic to recover from the anticipated conditions trapped during runtime.

This mechanism is similar to C++ try/throw/catch:

• 'try' correspond to Session::push_internal_handler(),
• 'throw' correspond to my_error(), which invokes my_message_sql(),
• 'catch' correspond to checking how/if an internal handler was invoked, before removing it from the exception stack with Session::pop_internal_handler().

Parameters:

sql_errno	the error number
level	the error level
session	the calling thread

Returns:

true if the error is handled

Implements drizzled::Internal_error_handler.

Definition at line 419 of file storage_engine.cc.

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

• drizzled/plugin/storage_engine.cc