Package org.javalite.activeweb.controller_filters

Class DBConnectionFilter

java.lang.Object

org.javalite.activeweb.HttpSupport

org.javalite.activeweb.controller_filters.HttpSupportFilter

org.javalite.activeweb.controller_filters.AppControllerFilter

org.javalite.activeweb.controller_filters.DBConnectionFilter

All Implemented Interfaces:

RequestAccess

public class DBConnectionFilter
extends AppControllerFilter

Class is to be used in web apps that use ActiveJDBC. This class will open a connection configured in DBConfig class of the application before controller is executed and will close it after.

Author:

Igor Polevoy

Nested Class Summary

Nested classes/interfaces inherited from class org.javalite.activeweb.HttpSupport

HttpSupport.HttpBuilder, HttpSupport.RenderBuilder

Field Summary

Fields inherited from interface org.javalite.activeweb.RequestAccess

LOGGER

Constructor Summary

Constructors

Constructor	Description
DBConnectionFilter()	This constructor is used to open all configured connections for a current environment.
DBConnectionFilter(String dbName)	Use this constructor to only open a named DB connection for a given environment.
DBConnectionFilter(String dbName, boolean manageTransaction)	Use this constructor to only open a named DB connection for a given environment and specify if this filter needs to manage transactions.

Method Summary

Modifier and Type	Method	Description
void	after()
void	before()
void	onException(Exception e)	To be implemented by application level filters.

Methods inherited from class org.javalite.activeweb.HttpSupport

applicationJSON, assign, blank, encoding, flash, flash, flash, flash, getEncoding, getFile, getHttpServletRequest, getHttpServletResponse, getMap, getMap, getRealPath, getRequestBytes, getRequestInputStream, getRequestStream, getRequestString, getResponseHeaders, header, header, jsonList, jsonMap, jsonMaps, locale, logDebug, logError, logError, logError, logInfo, logWarning, logWarning, merge, multipartForm, multipartForm, multipartFormItems, multipartFormItems, multipartFormItems, outputStream, outputStream, outputStream, redirect, redirect, redirect, redirect, redirect, redirect, redirect, redirect, redirectToReferrer, redirectToReferrer, render, respond, sanitize, sendCookie, sendCookie, sendFile, sendFile, sendPermanentCookie, session, session, sessionBoolean, sessionDouble, sessionFloat, sessionHas, sessionInteger, sessionLong, sessionObject, sessionString, setContentLength, setEncoding, setLocale, setRequestEncoding, setResponseEncoding, status, streamOut, uploadedFiles, uploadedFiles, uploadedFiles, values, view, view, view, writer, writer

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.javalite.activeweb.RequestAccess

appContext, context, cookie, cookies, cookieValue, exists, format, getId, getLocale, getRequestHost, getRequestPort, getRequestProperties, getRequestProtocol, getRoute, header, headers, host, ipAddress, ipForwardedFor, isDelete, isGet, isHead, isMethod, isMultipartContent, isPost, isPut, isXhr, locale, method, param, param, params, params, params, params1st, params1st, path, port, protocol, queryString, remoteAddress, remoteHost, requestHas, servletPath, session, session, uri, url, userAgent, xhr

Constructor Details

DBConnectionFilter

public DBConnectionFilter()

This constructor is used to open all configured connections for a current environment.

DBConnectionFilter

public DBConnectionFilter(String dbName)

Use this constructor to only open a named DB connection for a given environment.

Parameters:

dbName - name of DB to open

DBConnectionFilter

public DBConnectionFilter(String dbName,
 boolean manageTransaction)

Use this constructor to only open a named DB connection for a given environment and specify if this filter needs to manage transactions.

Parameters:

dbName - name of DB to open

manageTransaction - if set to true, the filter will start a transaction inside before() method, commit inside the after() method, and rollback inside onException(Exception) method. This applies to all connections managed by this filter. If set to false, transactions are not managed. Configuration of J2EE container transaction management for a given JNDI DataSource can interfere with this filter. This filter uses simple java.sql.Connection methods: setAutocommit(boolean), commit() and rollback(). If you configure XA transactions, this parameter could be completely ignored by the container itself. For this filter to manage transactions, the datasources should not be type of XA. Read container documentation.

Method Details

before

public void before()

Overrides:

before in class HttpSupportFilter

after

public void after()

Overrides:

after in class HttpSupportFilter

onException

public void onException(Exception e)

Description copied from class: HttpSupportFilter

To be implemented by application level filters. If there is an exception generated downstream, the filters

Overrides:

onException in class HttpSupportFilter

Parameters:

e - exception.