{"id":236,"date":"2003-01-26T23:33:13","date_gmt":"2003-01-27T03:33:13","guid":{"rendered":"http:\/\/wordpress.cephas.net\/?p=236"},"modified":"2003-01-26T23:33:13","modified_gmt":"2003-01-27T03:33:13","slug":"coldfusion-httpsessionlistener-interface","status":"publish","type":"post","link":"https:\/\/cephas.net\/blog\/2003\/01\/26\/coldfusion-httpsessionlistener-interface\/","title":{"rendered":"ColdFusion & HttpSessionListener interface"},"content":{"rendered":"

Couple weeks ago some guys from Macromedia<\/a> stopped by to yack with us<\/a> about what we thought could be improved and\/or added to the next version of CFMX<\/a>. One of the things that came up a couple times was that it would be nice to have session OnStart<\/a> and OnEnd<\/a> functionality as well as application OnStart<\/a> and OnEnd<\/a>. Reading this month’s Java Developer’s Journal<\/a>, it has an article on the HttpSession object (I’d link to it, but they charge for their content… too bad, I bet they’d be getting alot more traffic and readers if they’d provide their content for free), which provides multiple listener objects, HttpSessionListener<\/a>, HttpSessionBindingListener<\/a>, HttpSessionAttributeListener<\/a>, and HttpSessionActivationListener<\/a>. I don’t have CFMX here at home, but it seems like it would be possible to write a class that implements those either of those interfaces (probably the sessionCreated() and sessionDestroyed methods of the HttpSessionListener object), register that class in the web.xml of WEB-INF for your application like this:<\/p>\n

<listener>
\n  <listener-class>
\n    com.yourApp.yourSessionListener
\n  <\/listener-class>
\n<\/listener><\/p>\n

Turns out you could do the same type of thing w\/ javax.servlet.ServletContextListener<\/a> [contextDestroyed() and contextInitialized()] and then register:<\/p>\n

<listener>
\n  <listener-class>
\n    com.yourApp.yourApplicationListener
\n  <\/listener-class>
\n<\/listener><\/p>\n

in your web.xml and then… hypothetically, you’d have session OnStart, session OnEnd, application OnStart and application OnEnd just like ASP.<\/p>\n

I’ll try it out tomorrow, unless you beat me to it.<\/p>\n","protected":false},"excerpt":{"rendered":"

Couple weeks ago some guys from Macromedia stopped by to yack with us about what we thought could be improved and\/or added to the next version of CFMX. One of the things that came up a couple times was that it would be nice to have session OnStart and OnEnd functionality as well as application … Continue reading ColdFusion & HttpSessionListener interface<\/span> →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[7,3],"tags":[],"_links":{"self":[{"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/posts\/236"}],"collection":[{"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/comments?post=236"}],"version-history":[{"count":0,"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/posts\/236\/revisions"}],"wp:attachment":[{"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/media?parent=236"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/categories?post=236"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/cephas.net\/blog\/wp-json\/wp\/v2\/tags?post=236"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}