kexi

KexiDB::Parser

KexiDB::Parser Class Reference

#include <parser.h>

List of all members.

Detailed Description

Parser for sql statements.

Definition at line 93 of file parser.h.


Public Types

enum  OPCode {
  OP_None = 0, OP_Error, OP_CreateTable, OP_AlterTable,
  OP_Select, OP_Insert, OP_Update, OP_Delete
}

Public Member Functions

 Parser (Connection *connection)
 ~Parser ()
bool parse (const QString &statement)
void clear ()
OPCode operation () const
QString operationString () const
TableSchema * table ()
QuerySchema * query ()
Connection * db () const
ParserError error () const
QString statement () const
void setOperation (OPCode op)
void createTable (const char *t)
void setQuerySchema (QuerySchema *query)
QuerySchema * select () const
void setError (const ParserError &err)
bool isReservedKeyword (const char *str)

Protected Member Functions

void init ()

Protected Attributes

ParserError m_error
ParserPrivate * d

Member Enumeration Documentation

enum KexiDB::Parser::OPCode
 

The operation-code of the statement.

Enumerator:
OP_Error  No statement parsed or reseted.
OP_CreateTable  Error while parsing.
OP_AlterTable  Create a table.
OP_Select  Alter an existing table.
OP_Insert  Query-statement.
OP_Update  Insert new content.
OP_Delete  Delete existing content.

Definition at line 100 of file parser.h.

Constructor & Destructor Documentation

Parser::Parser (  Connection *  connection  ) 
 

constructs an empty object of the parser

Parameters:
connection is used for things like wildcard resolution. If 0 parser works in "pure mode"

Definition at line 31 of file parser.cpp.

Member Function Documentation

void Parser::clear (   ) 
 

rests results

Definition at line 125 of file parser.cpp.

Connection * Parser::db (   )  const
 

Returns:
a pointer to the used database connection or 0 if not set You can call this method only once every time after doing parse(). Next time, the call will return 0.

Definition at line 71 of file parser.cpp.

ParserError Parser::error (   )  const
 

returns detailed information about last error.

If no error occured ParserError isNull()

Definition at line 73 of file parser.cpp.

bool Parser::isReservedKeyword (  const char *  str  ) 
 

return true if the

Parameters:
str is an reserved keyword (see tokens.cpp for a list of reserved keywords).

Definition at line 110 of file parser.cpp.

Parser::OPCode Parser::operation (   )  const
 

Returns:
the resulting operation or OP_Error if failed

Definition at line 42 of file parser.cpp.

QString Parser::operationString (   )  const
 

Returns:
the resulting operation as string.

Definition at line 45 of file parser.cpp.

bool Parser::parse (  const QString &  statement  ) 
 

clears previous results and runs the parser

Definition at line 116 of file parser.cpp.

QuerySchema * Parser::query (   ) 
 

Returns:
a pointer to KexiDBSelect if 'SELECT ...' was called or 0 on any other operation or error. Returned object is owned by you. You can call this method only once every time after doing parse(). Next time, the call will return 0.

Definition at line 69 of file parser.cpp.

QString Parser::statement (   )  const
 

Returns:
the statement passed on the last parse method-call.

Definition at line 75 of file parser.cpp.

TableSchema * Parser::table (   ) 
 

Returns:
a pointer to a KexiDBTable on CREATE TABLE or 0 on any other operation or error. Returned object is owned by you. You can call this method only once every time after doing parse(). Next time, the call will return 0.

Definition at line 67 of file parser.cpp.

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

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