m::DatabaseInstruction Struct Reference

A DatabaseInstruction represents an invokation of an instruction with (optional) arguments. More...

#include <DatabaseCommand.hpp>

Inheritance diagram for m::DatabaseInstruction:

Collaboration diagram for m::DatabaseInstruction:

Public Member Functions
	DatabaseInstruction (std::vector< std::string > args)
const std::vector< std::string > &	args () const
	Returns the arguments of this instruction.
virtual void	accept (DatabaseCommandVisitor &v)=0
virtual void	accept (ConstDatabaseCommandVisitor &v) const =0
virtual void	execute (Diagnostic &diag)=0
	Executes the command.
template<typename T = ast::Command> requires std::derived_from<T, ast::Command>
T &	ast ()
template<typename T = ast::Command> requires std::derived_from<T, ast::Command>
const T &	ast () const
std::unique_ptr< ast::Command >	ast (std::unique_ptr< ast::Command > new_ast)
Scheduler::Transaction *	transaction ()
void	transaction (Scheduler::Transaction *t)

Private Attributes
std::vector< std::string >	args_
	the arguments of this instruction
std::unique_ptr< ast::Command >	ast_
	‍the AST of the command; optional
Scheduler::Transaction *	t_
	‍the transaction this command belongs to

Detailed Description

A DatabaseInstruction represents an invokation of an instruction with (optional) arguments.

A new instruction can be implemented by making a new subclass of DatabaseInstruction. The newly implemented instruction must then be registered in the Catalog using Catalog::register_instruction().

Definition at line 73 of file DatabaseCommand.hpp.

Constructor & Destructor Documentation

DatabaseInstruction()

m::DatabaseInstruction::DatabaseInstruction ( std::vector< std::string >  args )

inline

Definition at line 79 of file DatabaseCommand.hpp.

Member Function Documentation

accept() [1/2]

virtual void m::DatabaseCommand::accept ( ConstDatabaseCommandVisitor &  v ) const

pure virtualinherited

Implemented in m::EmptyCommand, m::learn_spns, m::QueryDatabase, m::InsertRecords, m::UpdateRecords, m::DeleteRecords, m::ImportDSV, m::CreateDatabase, m::DropDatabase, m::UseDatabase, m::CreateTable, m::DropTable, m::CreateIndex, and m::DropIndex.

accept() [2/2]

virtual void m::DatabaseCommand::accept ( DatabaseCommandVisitor &  v )

pure virtualinherited

Implemented in m::EmptyCommand, m::learn_spns, m::QueryDatabase, m::InsertRecords, m::UpdateRecords, m::DeleteRecords, m::ImportDSV, m::CreateDatabase, m::DropDatabase, m::UseDatabase, m::CreateTable, m::DropTable, m::CreateIndex, and m::DropIndex.

args()

const std::vector< std::string > & m::DatabaseInstruction::args ( ) const

inline

Returns the arguments of this instruction.

Definition at line 82 of file DatabaseCommand.hpp.

References args_.

ast() [1/3]

template<typename T = ast::Command>
requires std::derived_from<T, ast::Command>

T & m::DatabaseCommand::ast ( )

inlineinherited

Definition at line 39 of file DatabaseCommand.hpp.

References m::DatabaseCommand::ast_, and m::T().

Referenced by m::QueryDatabase::execute().

ast() [2/3]

template<typename T = ast::Command>
requires std::derived_from<T, ast::Command>

const T & m::DatabaseCommand::ast ( ) const

inlineinherited

Definition at line 42 of file DatabaseCommand.hpp.

References m::DatabaseCommand::ast_, and m::T().

ast() [3/3]

std::unique_ptr< ast::Command > m::DatabaseCommand::ast ( std::unique_ptr< ast::Command >  new_ast )

inlineinherited

Definition at line 44 of file DatabaseCommand.hpp.

References m::DatabaseCommand::ast_.

execute()

virtual void m::DatabaseCommand::execute ( Diagnostic &  diag )

pure virtualinherited

Executes the command.

Implemented in m::EmptyCommand, m::learn_spns, m::QueryDatabase, m::InsertRecords, m::UpdateRecords, m::DeleteRecords, m::ImportDSV, m::CreateDatabase, m::DropDatabase, m::UseDatabase, m::CreateTable, m::DropTable, m::CreateIndex, and m::DropIndex.

transaction() [1/2]

Scheduler::Transaction * m::DatabaseCommand::transaction ( )

inlineinherited

Definition at line 48 of file DatabaseCommand.hpp.

References m::DatabaseCommand::t_.

Referenced by m::QueryDatabase::execute(), m::InsertRecords::execute(), and m::ImportDSV::execute().

transaction() [2/2]

void m::DatabaseCommand::transaction ( Scheduler::Transaction *  t )

inlineinherited

Definition at line 49 of file DatabaseCommand.hpp.

References m::DatabaseCommand::t_.

Field Documentation

args_

std::vector<std::string> m::DatabaseInstruction::args_

private

the arguments of this instruction

Definition at line 76 of file DatabaseCommand.hpp.

Referenced by args().

ast_

std::unique_ptr<ast::Command> m::DatabaseCommand::ast_

privateinherited

‍the AST of the command; optional

Definition at line 24 of file DatabaseCommand.hpp.

Referenced by m::DatabaseCommand::ast().

t_

Scheduler::Transaction* m::DatabaseCommand::t_

privateinherited

‍the transaction this command belongs to

Definition at line 26 of file DatabaseCommand.hpp.

Referenced by m::DatabaseCommand::transaction().

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

• include/mutable/catalog/DatabaseCommand.hpp