org.posper.hibernate.setup

Class DatabaseValidator

java.lang.Object

org.posper.hibernate.setup.DatabaseValidator

public class DatabaseValidator
extends Object

Author:

Aaron Luchko

Method Summary

Modifier and Type	Method and Description
static long	compareDatabase() Compare the database schema version to the schema verison required by POSper.
static boolean	databaseExists() Checks if the database exists and has a valid version entry.
static long	getDbSchema() Checks if the DB exists and returns the posper.schema entry
static List<URL>	listResources(String dir)
static void	setSchema(String posper_schema) Set the schema number of the database.
static void	setSlave(boolean isSlave)
static void	updateBuild()
static void	upgradeDatabase() This method upgrades a database created by a previous version to the current state of the program.
static boolean	upgradePossible() Can the existing database be upgraded by POSper?

Methods inherited from class java.lang.Object

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

Method Detail

databaseExists

public static boolean databaseExists()

Checks if the database exists and has a valid version entry.

Returns:

true if the database exists and has been validated and false otherwise

compareDatabase

public static long compareDatabase()

Compare the database schema version to the schema verison required by POSper.

Returns:

less than 0 if DB is newer, 0 if same, greater than 0 if DB is older

getDbSchema

public static long getDbSchema()

Checks if the DB exists and returns the posper.schema entry

Returns:

a Long with the posper.schema value in Resources or '0' if the DB does not exist or -1 if the value is not a number.

upgradePossible

public static boolean upgradePossible()

Can the existing database be upgraded by POSper? Database upgrades are only supported again as of schema '20120618154625', which was introduced with POSper 2.0.

Returns:

true if upgrade possible

upgradeDatabase

public static void upgradeDatabase()
                            throws BasicException

This method upgrades a database created by a previous version to the current state of the program.

Throws:

BasicException

listResources

public static List<URL> listResources(String dir)
                               throws IOException,
                                      MalformedURLException

Throws:

IOException

MalformedURLException

updateBuild

public static void updateBuild()

setSlave

public static void setSlave(boolean isSlave)

setSchema

public static void setSchema(String posper_schema)

Set the schema number of the database. This method must only be used on setup or if the database has been updated by POSper. POsper will compare POSPER_SCHEMA with the required schema number on startup. The required schema number is always stored in BasicProperties.