org.yawlfoundation.yawl.elements.data.external

Class HibernateEngine

java.lang.Object

org.yawlfoundation.yawl.elements.data.external.HibernateEngine

public class HibernateEngine
extends java.lang.Object

This singleton class provides basic db support methods via Hibernate.

Author:

Michael Adams Date: 09/07/2009

Field Summary

Fields

Modifier and Type	Field and Description
static int	DB_DELETE
static int	DB_INSERT
static int	DB_UPDATE

Method Summary

Modifier and Type	Method and Description
void	configureSession(java.util.Properties props, java.util.List<java.lang.Class> classes)
void	configureSession(java.lang.String dialect, java.lang.String driver, java.lang.String url, java.lang.String username, java.lang.String password, java.util.List<java.lang.Class> classes)
java.util.List	execNamedQuery(java.lang.String namedQuery, java.lang.String key)
java.util.List	execQuery(java.lang.String queryString)
java.util.List	execSQLQuery(java.lang.String queryString) executes a Query object based on the sql string passed
int	execUpdate(java.lang.String queryString)
static HibernateEngine	getInstance() returns the current HibernateEngine instance
void	initialise() initialises hibernate and the required tables

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

DB_UPDATE

public static final int DB_UPDATE

See Also:

Constant Field Values

DB_DELETE

public static final int DB_DELETE

See Also:

Constant Field Values

DB_INSERT

public static final int DB_INSERT

See Also:

Constant Field Values

Method Detail

getInstance

public static HibernateEngine getInstance()

returns the current HibernateEngine instance

initialise

public void initialise()
                throws org.hibernate.HibernateException

initialises hibernate and the required tables

Throws:

org.hibernate.HibernateException

configureSession

public void configureSession(java.lang.String dialect,
                             java.lang.String driver,
                             java.lang.String url,
                             java.lang.String username,
                             java.lang.String password,
                             java.util.List<java.lang.Class> classes)
                      throws org.hibernate.HibernateException

Throws:

org.hibernate.HibernateException

configureSession

public void configureSession(java.util.Properties props,
                             java.util.List<java.lang.Class> classes)

execSQLQuery

public java.util.List execSQLQuery(java.lang.String queryString)
                            throws org.hibernate.HibernateException

executes a Query object based on the sql string passed

Parameters:

queryString - - the sql query to execute

Returns:

the List of Object[]'s returned, or null if the query has some problem

Throws:

org.hibernate.HibernateException

execQuery

public java.util.List execQuery(java.lang.String queryString)

execNamedQuery

public java.util.List execNamedQuery(java.lang.String namedQuery,
                                     java.lang.String key)
                              throws org.hibernate.HibernateException

Throws:

org.hibernate.HibernateException

execUpdate

public int execUpdate(java.lang.String queryString)
               throws org.hibernate.HibernateException

Throws:

org.hibernate.HibernateException