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POJsf pages don't show newly added values
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  1. POJsf pages don't show newly added values
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    copied!<p>I'm using Java EE6 and JSF for making a simple CRUD application.</p> <p>In many of my JSF pages, I have a selectOneMenu for the user to select an existing item. For example, if the user is adding an "Exam", he/she can choose a "Department" from the combo-box, since they have a one-to-many relationship.</p> <p>The problem is that whenever a new Department is added, the combo-box values are not updated until the session times out. I need to use SessionScoped backing beans, because I need the values to persist across multiple Requests.</p> <p>Here is a function I'm using to populate the selectOneMenu (not exactly as the example described above, but very similar):</p> <pre><code>public SelectItem[] getExamsByDepartment(){ if(departmentMaster!=null){ Collection&lt;ExamMaster&gt; examMasterCollection = departmentMaster.getExamMasterCollection(); //Problem: newly added exams aren't shown until session is re-created if (examMasterCollection != null &amp;&amp; examMasterCollection.size() &gt; 0) { SelectItem[] selectItem = new SelectItem[examMasterCollection.size()]; Iterator&lt;ExamMaster&gt; i = examMasterCollection.iterator(); int count = 0; while (i.hasNext()) { ExamMaster tmpExamMaster = i.next(); selectItem[count++] = new SelectItem(tmpExamMaster, tmpExamMaster.getExamName()); } return selectItem; } } SelectItem[] selectItem = new SelectItem[1]; selectItem[0] = new SelectItem("", "[No exams found]"); return selectItem; } </code></pre> <p>Is there any workaround by which I can destroy and re-create the Session? Or any other way by which I can solve this problem?</p> <p>EDIT: I guess the issue boils down to why the Collection doesn't update after inserting a record, even though the one-to-many relationship is defined in the Persistence class</p> <p>EDIT 2: Instead of using the collection, I am using a Named Query now, and it fetches the new record as expected. I had assumed that the Collection should be updated automagically. Perhaps that is not true?</p>
 

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