Package org.apache.empire.jsf2.app

Class WebDBContext<DB extends DBDatabase>

java.lang.Object

org.apache.empire.db.context.DBContextBase

org.apache.empire.jsf2.app.WebDBContext<DB>

All Implemented Interfaces:

Serializable, DBContext

public class WebDBContext<DB extends DBDatabase>
extends DBContextBase
implements Serializable

This is the basic implementation of a DBContext for a web application Important: The connection is obtained on HttpRequest scope and hot held by the context The connection is automatically released via the FacesRequestPhaseListener

Author:

rainer

See Also:

• Serialized Form

Field Summary

Fields

Modifier and Type	Field	Description
protected final WebApplication	app
protected final DB	database
protected final DBMSHandler	dbms

Constructor Summary

Constructors

Constructor	Description
WebDBContext(DB db)	Constructor
WebDBContext(DB db, boolean rollbackHandlingEnabled)	Constructor

Method Summary

Modifier and Type	Method	Description
void	discard()	Unclear weather this is any useful here
protected Connection	getConnection(boolean create)
DB	getDatabase()
DBMSHandler	getDbms()
javax.faces.context.FacesContext	getFacesContext()
protected DBRollbackManager	getRollbackManager(boolean create)
boolean	isPreparedStatementsEnabled()
boolean	isRollbackHandlingEnabled()

Methods inherited from class org.apache.empire.db.context.DBContextBase

appendRollbackHandler, closeConnection, commit, createCommand, createUtils, executeDelete, executeInsert, executeInsertInto, executeSQL, executeUpdate, getConnection, getUtils, removeRollbackHandler, rollback, setUtils

Methods inherited from class java.lang.Object

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

Field Details

app

protected final transient WebApplication app

database

protected final transient DB extends DBDatabase database

dbms

protected final transient DBMSHandler dbms

Constructor Details

WebDBContext

public WebDBContext(DB db,
 boolean rollbackHandlingEnabled)

Constructor

Parameters:

db - the database

rollbackHandlingEnabled - flag whether to enable rollback handling

WebDBContext

public WebDBContext(DB db)

Constructor

Parameters:

db - the database

Method Details

getDatabase

public DB getDatabase()

getDbms

public DBMSHandler getDbms()

Specified by:

getDbms in interface DBContext

isPreparedStatementsEnabled

public boolean isPreparedStatementsEnabled()

Specified by:

isPreparedStatementsEnabled in class DBContextBase

isRollbackHandlingEnabled

public boolean isRollbackHandlingEnabled()

Specified by:

isRollbackHandlingEnabled in interface DBContext

discard

public void discard()

Unclear weather this is any useful here

Specified by:

discard in interface DBContext

Overrides:

discard in class DBContextBase

getConnection

protected Connection getConnection(boolean create)

Specified by:

getConnection in class DBContextBase

getRollbackManager

protected DBRollbackManager getRollbackManager(boolean create)

Specified by:

getRollbackManager in class DBContextBase

getFacesContext

public javax.faces.context.FacesContext getFacesContext()