DirectAccessingEndToEndClient.java

package foo;

import org.eclipse.persistence.exceptions.DatabaseException;
import org.eclipse.persistence.sessions.DatabaseSession;
import org.eclipse.persistence.sessions.Project;

public class DirectAccessingEndToEndClient {
    private Project project;
    private DatabaseSession session;
    private String errorMessage;

    /**
     * if there are any problems the error message will have a value
     */
    public static void main(String[] args) {
        DirectAccessingEndToEndClient client = new DirectAccessingEndToEndClient();
        try {
            client.login();
            client.testCode();
            client.logout();
        } catch (Exception ex) {
            // any exceptions should be recorded in the error message...
        }
        if (client.errorMessage == null) {
            System.exit(0);
        } else {
            System.err.println(client.errorMessage);
            System.exit(1);
        }
    }

    DirectAccessingEndToEndClient() {
        super();
    }

    private void login() throws Exception {
        try {
            this.project = new EndToEndProject();
            this.session = this.project.createDatabaseSession();
            this.session.dontLogMessages();
//            this.session.logMessages();
            this.session.login();
        } catch (Exception ex) {
            this.errorMessage = "Problems logging in to database: " + ex;
            throw ex;
        }
    }

    private void testCode() throws Exception {
        try { // test out creating objects
            Employee employee = new Employee();
            PhoneNumber homeNumber = new PhoneNumber();
            PhoneNumber workNumber = new PhoneNumber();
        } catch (Exception ex) {
            this.errorMessage = "Problems instantiating objects: " + ex;
            throw ex;
        }
    }

    private void logout() throws Exception {
        try {
            this.session.logout();
        } catch (Exception ex) {
            this.errorMessage = "Problems logging out of database: " + ex;
            throw ex;
        }
    }

}