A minimal client program

A minimal client program
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We are now going to write a minimal client program which will perform the following operations:

initialize the EyeDB package and the person package
open a connection with the EyeDB server
open a database
perform error management
release the EyeDB package and the person package

Example 4.1, “A minimal C++ client” shows the code for this minimal client.

Example 4.1. A minimal C++ client

#include "person.h"

int
main(int argc, char *argv[])
{
  eyedb::init(argc, argv);      // initializes EyeDB package
  person::init();               // initializes person package

  eyedb::Exception::setMode(eyedb::Exception::ExceptionMode); // use exception mode

  try {
    eyedb::Connection conn;

    conn.open();                // opens the connection

    personDatabase db(argv[1]); // creates a database handle
    db.open(&conn, eyedb::Database::DBRW); // opens the database in read/write mode
  }

  catch(Exception &e) {      // catch any exception and print it
    e.print();
  }

  person::release();            // releases person package
  eyedb::release();             // releases EyeDB package

  return 0;
}

Note that statement Exception::setMode(...) is mandatory if you want to use the exception error policy.