Default objects in Liferay

There are two taglibs which we are including every time when we create portlet.

   <%@ taglib uri="http://java.sun.com/portlet_2_0" prefix="portlet" %>

<portlet:defineObjects />

The above statements will give 14 default objects :

actionRequest, actionResponse,    eventRequest,  eventResponse, portletConfig, portletName,    portletPreferences, portletPreferencesValues, portletSession, portletSessionScope, renderRequest, renderResponse, resourceRequest, resourceResponse

and the type of each object as follows :

javax.portlet.ActionRequest actionRequest ;

javax.portlet.ActionResponse actionResponse ;

javax.portlet.EventRequest eventRequest ;

javax.portlet.EventResponse eventResponse ;

javax.portlet.PortletConfig portletConfig ;

java.lang.String portletName ;

javax.portlet.PortletPreferences portletPreferences ;

java.util.Map portletPreferencesValues ;

javax.portlet.PortletSession portletSession ;

java.util.Map portletSessionScope ;

javax.portlet.RenderRequest renderRequest ;

javax.portlet.RenderResponse renderResponse ;

javax.portlet.ResourceRequest resourceRequest ;

javax.portlet.ResourceResponse resourceResponse ;

     

        <%@ taglib uri="http://liferay.com/tld/theme" prefix="liferay-theme" %>

<liferay-theme:defineObjects />

The above statements will give 18 default objects :

themeDisplay, company, account, user, realUser, contact, layout, layouts, plid, layoutTypePortlet, scopeGroupId, permissionChecker, locale, timeZone, theme, colorScheme, portletDisplay, portletGroupId

and the type of each object as follows :

com.liferay.portal.theme.ThemeDisplay themeDisplay ;

com.liferay.portal.model.Company company ;

com.liferay.portal.model.Account account ;

com.liferay.portal.model.User user ;

com.liferay.portal.model.User realUser ;

com.liferay.portal.model.Contact contact ;

com.liferay.portal.model.Layout layout ;

java.util.List layouts ;

java.lang.Long plid ;

com.liferay.portal.model.LayoutTypePortlet layoutTypePortlet ;

java.lang.Long scopeGroupId ;

com.liferay.portal.security.permission.PermissionChecker permissionChecker ;

java.util.Locale locale ;

java.util.TimeZone timeZone ;

com.liferay.portal.model.Theme theme ;

com.liferay.portal.model.ColorScheme colorScheme ;

com.liferay.portal.theme.PortletDisplay portletDisplay ;

java.lang.Long portletGroupId ;

We can get these defaults objects using pageContext object which is default of the plain jsp.