Java Concepts

In our Project we have requirement to refresh the portlet at certain interval of times. Thanks to liferay we have utility method to get the refreshURL. Have a look into the  PortletURLUtil class. we have  getRefreshURL (---....)  method to the current portlet URL. So we have used in the following way in the jsp. As already we know "request" and "themeDisplay" Objects are predefined objects. <%@page import="com.liferay.portlet.PortletURLUtil"%> <script type="text/javascript"> setTimeout(openUrl, 5000); // Wait 5 seconds function openUrl(){    window.open('<%=PortletURLUtil.getRefreshURL(request, themeDisplay) %>'); } </script> Thats it will refresh the portlet for every 5 seconds. In  PortletURLUtil   also we have one more method to clone the URL,  clone (----) public static PortletURL clone( PortletURL portletURL, MimeResponse mimeResponse) throws PortletException { ---- --- } ...

Sometimes it may requires to create URL in Javascript. In Liferay we can create any URL in Javascript.  In Normal Case we can create Action URL as            < portlet:actionURL var="testURL" name="update" /> In Javascript we create as           <aui:script>            AUI().ready('liferay-portlet-url', function(A){           var actionURL = Liferay.PortletURL. createActionURL ();          actionURL .setParameter("cmd", "test");            });          </aui:script>    To create renderURL we put as Liferay.PortletURL. createRenderURL() ; in above script.    To Create resourceURL we put as Liferay.PortletURL. createResourceURL() ; Refer "LiferayPortletURL" interface to get more idea. Apart from the setting the parameter(...

Some times it may require you to create url in class. Its quite easy task to do , Here you follow as , ThemeDisplay themeDisplay = (ThemeDisplay) actionRequest. getAttribute(WebKeys.THEME_DISPLAY); long plid = PortalUtil.getPlidFromPortletId(themeDisplay.getScopeGroupId(),<portlet-name>);          PortletURL portletURL = PortletURLFactoryUtil.create(actionRequest ,<portlet-name>, plid ,PortletRequest.RENDER_PHASE);          portletURL.setWindowState(LiferayWindowState.POP_UP);          portletURL.setPortletMode(LiferayPortletMode.VIEW);          portletURL.setProperty("portletName", <portlet-name>);          portletURL.setParameter("type", "add"); For Custom portlet name will be some thing as like this <name>_WAR_<name>