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· 2 min read

Some portlet developers have hard time to set up a correct environment to use invalidation based cache with portlets. The summary is often:
"it is working with the PDK Example provided in Oracle 9iAS but every time that I want to do it myself from Oracle JDeveloper or a stand alone OC4J the portlet is not cached !"

· One min read

I had some questions about the limitation to 5 columns of the OmniPortlet tabular layout. Here is a tip to add more columns to this layout:

  1. backup the current OmniPortlet provider.xml /OC4J_HOME/applications/portalTools/omniPortlet/WEB-INF/providers/omniPortlet

  2. You can now open the file, and look for the tag <dataField

  1. You can add new fields, by copying the existing <dataField> tag and change the value of the <name> and <displayName>
<dataField class="oracle.webdb.reformlet.definition.DataFieldDefinition"><name>Field6</name><displayName>Column6</displayName><description>Field6</description><text>##column##</text>

The same logic could be used to add parameters or events to the OmniPortlet.

· One min read

To have a better control of the layout of your Portal Pages, you can use a vertical scroll bar in portlet wihout having to use iFrame technology. CSS provide us lof of power to do it.

  1. Create a style in your portlet (or in the portlet container code):
<style>.scroll<i>portletId</i> {  height:200px;  overflow: auto;}</style>
  1. Use this style in a DIV section:
<div class="scrollportletId">The content of this section will be vertically scrollable.</div>