Chapel Data Object

Database connector for the Chapel programming language. This mason package aims to provide database connectivity for some relational database management systems. Currently, support is planned for MySQL, PostgreSQL and SQLite. Support for other database management systems can be easily added by implementing the required interfaces.

Usage examples:

MySQL

module Main {
    use DatabaseCommunicator;
    use DatabaseCommunicator.DatabaseCommunicationObjects.QueryBuilder; // for Statement class
    use MySQL;

    proc main() throws {
        var conHandler = new ConnectionHandler(MySQLConnection, "localhost;testdb;username;password");
        var cursor = conHandler.cursor();

        var createStmt = "CREATE TABLE CONTACTS (id INT PRIMARY KEY, name VARCHAR(10));";
        cursor.execute(new Statement(createStmt));
        cursor.execute(new Statement("INSERT INTO CONTACTS VALUES (6, 'B');"));

        var stmt: Statement = new Statement("SELECT * FROM CONTACTS WHERE name = ?1", true);
        stmt.setValue(1, "B");
        
        cursor.execute(stmt);

        for row in cursor.fetchall() {
            writeln(row![0], "\t", row![1]);
        }

        cursor.close();
        conHandler.commit();
        conHandler.close();
    }
}

(For more about the Statement class, please see the documentation.)