{"id":733,"date":"2012-07-07T17:00:56","date_gmt":"2012-07-07T15:00:56","guid":{"rendered":"http:\/\/hasselba.ch\/blog\/?p=733"},"modified":"2012-07-07T17:01:53","modified_gmt":"2012-07-07T15:01:53","slug":"the-application-events-of-xpages-applicationlistener","status":"publish","type":"post","link":"https:\/\/hasselba.ch\/blog\/?p=733","title":{"rendered":"XPages application events: Create your own ApplicationListener"},"content":{"rendered":"

If you want to get a handle to application events and want to know if a XPages application is created or destroyed (which means the application was destroyed because of a time out), you can implement this by creating your own own application listener.<\/p>\n

For this you have to do the following steps:<\/p>\n

    \n
  1. Create a class which implements the ApplicationListener <\/em>interface<\/li>\n
  2. Activate the class in XPages runtime<\/li>\n<\/ol>\n

    To realise the first part, you have to create a class that implements the interface com.ibm.xsp.application.events.ApplicationListener<\/em>. This interface has two methods: applicationCreated<\/em> and applicationDestroyed<\/em> (the method names should be self-describing enough).<\/p>\n

    Here is an example:<\/p>\n

    package ch.hasselba.jsf.debug;\r\n\r\nimport com.ibm.xsp.application.ApplicationEx;\r\nimport com.ibm.xsp.application.events.ApplicationListener;\r\n\r\npublic class MyApplicationListener implements ApplicationListener {\r\n\r\n\u00a0\u00a0 \u00a0public void applicationCreated(ApplicationEx arg0) {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0System.out.println(\"applicationCreated()\");\r\n        System.out.println(\"ID: \" + arg0.getApplicationId());\r\n\u00a0\u00a0 \u00a0}\r\n\r\n\u00a0\u00a0 \u00a0public void applicationDestroyed(ApplicationEx arg0) {\r\n\u00a0\u00a0 \u00a0\u00a0\u00a0 \u00a0System.out.println(\"applicationDestroyed()\");\r\n        System.out.println(\"ID: \" + arg0.getApplicationId()); \u00a0\r\n\u00a0\u00a0 \u00a0}\r\n\r\n}<\/pre>\n
    Now to step two, the activation of the class. To do this, you have to add a special configuration file to your application:<\/p>\n
      \n
    1. Switch to „Java<\/em>“ perspective<\/li>\n
    2. Create a new folder „META-INF<\/em>“ in the „Code\/Java<\/em>“ section<\/li>\n
    3. Create a sub folder „services<\/em>„<\/li>\n
    4. Create a file named „com.ibm.xsp.core.events.ApplicationListener<\/em>„<\/li>\n
    5. In this file you add the full name of your MyApplicationListener<\/em> class (including the package name):<\/li>\n<\/ol>\n
      \"\"<\/p>\n
      The file structure should now look like this in Java perspective:<\/p>\n
      \"\"<\/p>\n
      If you switch back to Domino perspective, the structure in the „Code\/Java<\/em>“ looks like this:<\/p>\n
      \"\"<\/p>\n
      You can now verify that all works correctly by opening a XPage and have a look on your server console:<\/p>\n
      \"\"<\/p>\n
      [The application timeout was set to one minute.]<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"
      If you want to get a handle to application events and want to know if a XPages application is created or destroyed (which means the application was destroyed because of a time out), you can implement this by creating your … Weiterlesen →<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[38,89,26,74],"tags":[33,7,39,31,86,32,3],"class_list":["post-733","post","type-post","status-publish","format-standard","hentry","category-extensibility-api","category-java","category-jsf","category-xpages","tag-8-5-3","tag-domino","tag-extenisbility-api","tag-java","tag-jsf","tag-tipp","tag-xpages"],"_links":{"self":[{"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=\/wp\/v2\/posts\/733","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=733"}],"version-history":[{"count":5,"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=\/wp\/v2\/posts\/733\/revisions"}],"predecessor-version":[{"id":738,"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=\/wp\/v2\/posts\/733\/revisions\/738"}],"wp:attachment":[{"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=733"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=733"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hasselba.ch\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=733"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}