Execute a query non returning anything, but modifying the event store. More...

#include <EditEventStore.h>

Inheritance diagram for SQLamarr::EditEventStore:

Classes
class	EditEventStore
	Execute a transaction with multiple custom queries without returning any output. More...

Public Member Functions
	EditEventStore (SQLite3DB &db, const std::vector< std::string > &queries)
	Constructor. More...

void	execute () override
	Execute the algorithm, cleaning the database. More...

Public Member Functions inherited from SQLamarr::BaseSqlInterface
	BaseSqlInterface (SQLite3DB &db)
	Constructor, acquiring the database without ownership. More...

virtual	~BaseSqlInterface ()

void	sync_database (const std::string &db_uri)

void	invalidate_cache (void)
	Invalidate the cache of the queries. More...

Public Attributes
	argtypes

	restype

Additional Inherited Members
Protected Member Functions inherited from SQLamarr::BaseSqlInterface
sqlite3_stmt *	get_statement (const std::string &name, const std::string &query)
	Creates or retrieve from cache a statement. More...

void	begin_transaction ()
	Begin an SQL transaction stopping update to disk util `end_transaction()` is issued More...

void	end_transaction ()
	End an SQL transaction re-enabling disk updates. More...

int	last_insert_row ()
	Return the index of the last rows inserted in any table. More...

void	using_sql_function (const std::string &name, int argc, void(xFunc)(sqlite3_context , int, sqlite3_value **))
	Register a static function in DB, enabling usage from SQL. More...

bool	exec_stmt (sqlite3_stmt *)
	Execute a statement, possibly throwing an exception on failure. More...

Protected Attributes inherited from SQLamarr::BaseSqlInterface
SQLite3DB &	m_database
	Reference to the SQLite database (not owned). More...

Detailed Description

Execute a query non returning anything, but modifying the event store.

Sometimes it may be necessary to modify the event model during the execution of a pipeline, for example to drop tables or to add columns to existing ones, or even to update some table.

EditEventStore provides a generic building block which enables executing arbitrary queries to the SQLite3 database, without storing the output, if any.

Definition at line 33 of file EditEventStore.h.

Constructor & Destructor Documentation

◆ EditEventStore()

SQLamarr::EditEventStore::EditEventStore	(	SQLite3DB &	db,
		const std::vector< std::string > &	queries
	)

Constructor.

Parameters

db	Reference to the database
queries	Vector of queries to be executed in a single transaction

Definition at line 26 of file EditEventStore.cpp.

Member Function Documentation

◆ execute()

void SQLamarr::EditEventStore::execute ( void )

overridevirtual

Execute the algorithm, cleaning the database.

Implements SQLamarr::Transformer.

Definition at line 37 of file EditEventStore.cpp.

Member Data Documentation

◆ argtypes

SQLamarr.EditEventStore.argtypes

Definition at line 17 of file EditEventStore.py.

◆ restype

SQLamarr.EditEventStore.restype

Definition at line 22 of file EditEventStore.py.

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

include/SQLamarr/EditEventStore.h
python/SQLamarr/EditEventStore.py
src/EditEventStore.cpp

Classes

Public Member Functions

Public Attributes

Additional Inherited Members