HyriseSQLParser/src/SQLParserResult.h

93 lines
2.7 KiB
C++

#ifndef __SQLPARSER__SQLPARSER_RESULT_H__
#define __SQLPARSER__SQLPARSER_RESULT_H__
#include "sql/SQLStatement.h"
namespace hsql {
// Represents the result of the SQLParser.
// If parsing was successful it contains a list of SQLStatement.
class SQLParserResult {
public:
// Initialize with empty statement list.
SQLParserResult();
// Initialize with a single statement.
// Takes ownership of the statement.
SQLParserResult(SQLStatement* stmt);
// Move constructor.
SQLParserResult(SQLParserResult&& moved);
// Deletes all statements in the result.
virtual ~SQLParserResult();
// Set whether parsing was successful.
void setIsValid(bool isValid);
// Returns true if parsing was successful.
bool isValid() const;
// Returns the number of statements in the result.
size_t size() const;
// Set the details of the error, if available.
// Takes ownership of errorMsg.
void setErrorDetails(char* errorMsg, int errorLine, int errorColumn);
// Returns the error message, if an error occurred.
const char* errorMsg() const;
// Returns the line number of the occurrance of the error in the query.
int errorLine() const;
// Returns the column number of the occurrance of the error in the query.
int errorColumn() const;
// Adds a statement to the result list of statements.
// SQLParserResult takes ownership of the statement.
void addStatement(SQLStatement* stmt);
// Gets the SQL statement with the given index.
const SQLStatement* getStatement(int index) const;
// Gets the non const SQL statement with the given index.
SQLStatement* getMutableStatement(int index);
// Get the list of all statements.
const std::vector<SQLStatement*>& getStatements() const;
// Returns a copy of the list of all statements in this result.
// Removes them from this result.
std::vector<SQLStatement*> releaseStatements();
// Deletes all statements and other data within the result.
void reset();
// Does NOT take ownership.
void addParameter(Expr* parameter);
const std::vector<Expr*>& parameters();
private:
// List of statements within the result.
std::vector<SQLStatement*> statements_;
// Flag indicating the parsing was successful.
bool isValid_;
// Error message, if an error occurred.
char* errorMsg_;
// Line number of the occurrance of the error in the query.
int errorLine_;
// Column number of the occurrance of the error in the query.
int errorColumn_;
// Does NOT have ownership.
std::vector<Expr*> parameters_;
};
} // namespace hsql
#endif // __SQLPARSER__SQLPARSER_RESULT_H__