de.jadv.server.manager
Class HSQLDBDatabaseManager

java.lang.Object
  |
  +--de.jadv.server.manager.HSQLDBDatabaseManager

All Implemented Interfaces:

DatabaseManager

public class HSQLDBDatabaseManager

extends java.lang.Object

implements DatabaseManager

This class handles all needed accesses for the ObjectManager UNTESTED! I haven't used this Class for quite some time now! (But it should work fine ...)

Author:

neitzel

Field Summary

private java.sql.Connection

_db_conn

Constructor Summary

HSQLDBDatabaseManager()
Constructor

Method Summary

private void	createTables() createTables Create the needed Tables!
void	deleteObject(java.lang.String id) deleteObject(id) Delete an Object from the Database
SavedObject	getObject(java.lang.String id) getObject(id) Returns the Object, that is stored inside the database or null if there isn't any object available.
private void	query(java.lang.String expression) query(Expression) Does a query on the database.
void	saveObject(SavedObject obj) saveObject(obj) Save an SavedObject inside the database.
void	shutdown() shutdown() Closes the database and the ObjectManager will no longer do anything else!

Methods inherited from class java.lang.Object

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

Field Detail

_db_conn

private java.sql.Connection _db_conn

Constructor Detail

HSQLDBDatabaseManager

public HSQLDBDatabaseManager()

Constructor

Method Detail

createTables

private void createTables()

createTables Create the needed Tables!

deleteObject

public void deleteObject(java.lang.String id)

deleteObject(id) Delete an Object from the Database

Specified by:

deleteObject in interface DatabaseManager

Parameters:

id -

getObject

public SavedObject getObject(java.lang.String id)

getObject(id) Returns the Object, that is stored inside the database or null if there isn't any object available.

Specified by:

getObject in interface DatabaseManager

Parameters:

id -

Returns:

SavedObject

query

private void query(java.lang.String expression)
            throws java.sql.SQLException

query(Expression) Does a query on the database. The result is simply thrown away!

Parameters:

expression -

Throws:

java.sql.SQLException

saveObject

public void saveObject(SavedObject obj)

saveObject(obj) Save an SavedObject inside the database. If the id of the object is zero, a new id will be saved inside the database.

Specified by:

saveObject in interface DatabaseManager

Parameters:

obj -

shutdown

public void shutdown()

shutdown() Closes the database and the ObjectManager will no longer do anything else!

Specified by:

shutdown in interface DatabaseManager

Throws:

java.lang.Exception