Package org.exoplatform.services.database

Class DBTableManager

java.lang.Object

org.exoplatform.services.database.DBTableManager

Direct Known Subclasses:

StandardSQLTableManager

public abstract class DBTableManager
extends Object

Created by The eXo Platform SAS Author : Tuan Nguyen tuan08@users.sourceforge.net Apr 4, 2006 The DBTableManager is an interface to help the developer to check if a table is existed or not and create/drop a table. We can implement more one more DBTableManager according to the database type and version.

Constructor Summary

Constructors

Constructor	Description
DBTableManager()

Method Summary

Modifier and Type	Method	Description
static final DBTableManager	createDBTableManager(ExoDatasource datasource)	This method should check the database type and version and create a corresponded DBTableManager
abstract <T extends DBObject> void	createTable(Class<T> type, boolean dropIfExist)	This method should: 1.
abstract <T extends DBObject> void	dropTable(Class<T> type)	This method should: 1.
abstract <T extends DBObject> boolean	hasTable(Class<T> type)	This method should: 1.

Methods inherited from class java.lang.Object

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

Constructor Details

DBTableManager

public DBTableManager()

Method Details

createTable

public abstract <T extends DBObject> void createTable(Class<T> type,
 boolean dropIfExist)
                                               throws Exception

This method should: 1. Extract the table information such table name and table fields from the class T, the information are annotated in the class T 2. Generate the SQL statement and create the table

Type Parameters:

T -

Parameters:

type -

dropIfExist -

Throws:

Exception

dropTable

public abstract <T extends DBObject> void dropTable(Class<T> type)
                                             throws Exception

This method should: 1. Extract the table information from the class T, the information are annotated in the class T 2. Generate the SQL statement and drop the table

Type Parameters:

T -

Parameters:

type -

Throws:

Exception

hasTable

public abstract <T extends DBObject> boolean hasTable(Class<T> type)
                                               throws Exception

This method should: 1. Extract the table information from the class T, the information are annotated in the class T 2. Check to see if the table is existed in the database system

Type Parameters:

T -

Parameters:

type -

Returns:

Throws:

Exception

createDBTableManager

public static final DBTableManager createDBTableManager(ExoDatasource datasource)

This method should check the database type and version and create a corresponded DBTableManager

Parameters:

datasource -

Returns: