dd::upgrade::Syntax_error_handler Class Reference

This class keeps a count of all the syntax errors that occurred while parsing views, routines, events or triggers. More...

#include <server.h>

Inheritance diagram for dd::upgrade::Syntax_error_handler:

Public Member Functions
	Syntax_error_handler ()
	Syntax_error_handler (Upgrade_error_counter *counter)
bool	handle_condition (THD *, uint sql_errno, const char *, Sql_condition::enum_severity_level *, const char *msg) override
	Handle a sql condition. More...

Static Public Member Functions
static bool	has_too_many_errors ()
static bool	has_errors ()
static const char *	error_message ()

Public Attributes
Upgrade_error_counter *	m_global_counter

Static Public Attributes
static uint	parse_error_count = 0
static bool	is_parse_error = false
static const uint	MAX_SERVER_CHECK_FAILS = 50
static dd::String_type	reason = ""

Additional Inherited Members
Protected Member Functions inherited from Internal_error_handler
	Internal_error_handler ()
Internal_error_handler *	prev_internal_handler () const
virtual	~Internal_error_handler ()=default

Detailed Description

This class keeps a count of all the syntax errors that occurred while parsing views, routines, events or triggers.

This count is used along with MAX_SERVER_CHECK_FAILS to exit upgrade.

Constructor & Destructor Documentation

Syntax_error_handler() [1/2]

dd::upgrade::Syntax_error_handler::Syntax_error_handler ( )

inline

Syntax_error_handler() [2/2]

dd::upgrade::Syntax_error_handler::Syntax_error_handler ( Upgrade_error_counter *  counter )

inline

Member Function Documentation

error_message()

const char * dd::upgrade::Syntax_error_handler::error_message ( )

static

handle_condition()

bool dd::upgrade::Syntax_error_handler::handle_condition ( THD *  thd, uint  sql_errno, const char *  sqlstate, Sql_condition::enum_severity_level *  level, const char *  msg  )

overridevirtual

Handle a sql condition.

This method can be implemented by a subclass to achieve any of the following:

• mask a warning/error internally, prevent exposing it to the user,
• mask a warning/error and throw another one instead. When this method returns true, the sql condition is considered 'handled', and will not be propagated to upper layers. It is the responsibility 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 THD::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 THD::pop_internal_handler().

Parameters

thd	the calling thread
sql_errno	the error number for the condition raised.
sqlstate	the SQLSTATE for the condition raised.
level	the severity level for the condition raised.
msg	the error message for the condition raised.

Returns

true if the condition is handled

Implements Internal_error_handler.

has_errors()

bool dd::upgrade::Syntax_error_handler::has_errors ( )

static

has_too_many_errors()

bool dd::upgrade::Syntax_error_handler::has_too_many_errors ( )

static

Member Data Documentation

is_parse_error

bool dd::upgrade::Syntax_error_handler::is_parse_error = false

static

m_global_counter

Upgrade_error_counter* dd::upgrade::Syntax_error_handler::m_global_counter

MAX_SERVER_CHECK_FAILS

const uint dd::upgrade::Syntax_error_handler::MAX_SERVER_CHECK_FAILS = 50

static

parse_error_count

uint dd::upgrade::Syntax_error_handler::parse_error_count = 0

static

reason

dd::String_type dd::upgrade::Syntax_error_handler::reason = ""

static

---

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

• sql/dd/impl/upgrade/server.h
• sql/dd/impl/upgrade/server.cc