Liferay
have introduced portal developer certification for Liferay 6.2 and its
almost similar to Liferay 6.1 and Liferay 6.2 Portal Developer
Certification covered the topics which are related to New Features in
Liferay 6.2 too.
The
exam consist following types of Questions.
Single
Selection (Radio Button)
Multiple Answers Selection (Check Boxes)
Boolean
Type Single Selection (Radio Button)
Single
Selection (radio button):
This
type of question there is only one statement is correct answers so we
need select the radio button out of given choices.
Multiple Answers Selection (Check boxes)
We
need to select multiple statements to give complete answers by
clicking on check boxes it may be 2 or more statements we need to
select from given choises.
Boolean
Type Single Section (Radio Button)
Here
we have two option like True/False so we need to select correct
choice from given two option.
Certification
Exam Marks and Weightage of Topics
Total
Question: 50 (100%)
Total
Time: 90 Minutes
Minimum
Required Score: 75%( Minimum 36 Questions we should answer correct)
Topics
and Question weightage in Each Topic
| Topics |
Number of
Questions(Total 50) |
%
occupation in Total (100%) |
| Advanced
Customization(Ext) |
4 |
8% |
| Architecture
and APIs |
13 or 12 |
26% or 24% |
| Development
Best Practices |
5 |
10% |
| Hook
Plugins |
12 |
24% |
| Layout
Template Plugins |
2 or 3 |
4% or 6% |
| Portlet
Plugins |
12 or 13 |
24% or 26% |
| Theme
Plugins |
3 or 2 |
6% or 4% |
Important
Points for Liferay 6.2 Portal Developer Certification.
- We should follow
Liferay Developer Guide and mandatory to cover all the topics which are specified in liferay certification blue print.
- Need to aware of all
Liferay DTD files
- Need to aware of all
Liferay Tag libraries
- Need to have good
understating of new features in Liferay 6.2
Reference
Links:
Note:
My sincere request
is please follow the developer guide,other liferay resources and
don't depend only on the model question paper ,there are many
questions we can expect from above topics but topics weightage is
sample and they questions always similar to the question which
specified in model paper.
Liferay
6.2 Portal Developer Certification Model Question Paper
How
to add column in layout?
- $layout.processColumn("column-1","portlet-column-content
portlet-column-content-only")
- $processor.processColumn("column-1","portlet-column-content
portlet-column-content-only")
- $layoutset.processColumn("column-1","portlet-column-content
portlet-column-content-only")
Answer:
$processor.processColumn("column-1","portlet-column-content
portlet-column-content-only")
Explanation/Reference:
$theme
VM variable is declared in?
- portla_noraml.vm
- custom_init.vm
- portlet.vm
- init.vm
Answer:
init.vm
Explanation/Reference:
All
required velocity variable are declared in init.vm file
how
to get theme settings?
- $theme.getSetting("my-setting")
- $layout.getSetting("my-setting")
- $themeDisplay.getSetting("my-setting")
Answer:
$theme.getSetting("my-setting")
Explanation/Reference:
processor.procceePortlet()
what is the parameter we should pass?
- portlet
name,
- Fully
qualified portlet ID
- Portlet
Instance Id
- portletDisplay
Answer:
Fully
qualified portlet ID
Explanation/Reference:
If
the portlet non instantiable and portlet is 82 then how to embedded
into theme?
- $theme.runTime("82",””,$velocityPortletPreferences.toString());
- $theme.runTime("82_INSTANCE_ss33",””,$velocityPortletPreferences.toString());
- $theme.runTime("82_ss33",””,$velocityPortletPreferences.toString());
Answer:
$theme.runTime("82",””,$velocityPortletPreferences.toString());
Explanation/Reference:
how
to get users who are added to organization?
- OrganizationLocalServiceUtil.getOrganizationUsers()
- UserLocalServiceUtil.getOrganizationUsers()
- GrouopLocalServiceUtil.getOrganizationUsers()
Answer:
UserLocalServiceUtil.getOrganizationUsers()
Explanation/Reference:
Read
more about Group,Organization and User related service classes and
its methods
The
available overridden portal properties using hook are defined in
which DTD file?
- liferay-hook_6_2_0.dtd
- liferay_hook6.2.0.dtd
- liferay.hook.6.2.0.dtd
Answer:
liferay-hook_6_2_0.dtd
Explanation/Reference:
JSR
286 Standard Portlet Modes?
- View,
- Edit,
- help
- Print
- Configuration
Answer:
View,
Edit,
help
Explanation/Reference:
how
to run portal in developer mode?
Answer:
set
JVM system variable like -Dexternal-properties=
portal-developer.properties
Explanation/Reference:
Liferay
in Developer Mode on a Tomcat application server, you’d add
-Dexternal-properties=portal-developer.properties to the list of
options for your CATALINA_OPTS variable, in your setenv.sh file
(setenv.bat in Windows).
-Dexternal-properties=
portal-developer.properties
Liferay
developer environment properties available in properties file ?
- portal-developer.properties
- developer.properties
- portal.properties
- system.properties
Answer:
portal-developer.properties
Explanation/Reference:
What
are the liferay plugins in Plugins SDK?
- AUI
Plugins
- Ext,
- Theme,
- Layout,
- Portlet,
- Web
- Hook
Answer:
Ext,
Theme,
Layout,
Portlet,
Web
Hook
Explanation/Reference:
how
to specify the Custom JSPs path in hook when we override it?
- <custom-jsp-dir>
- <custom-jsp-global/>
Answer:
<custom-jsp-dir>
Explanation/Reference:
To
map Service Builder with existing table the entity name should be same as table
name?
- True,
- False,
Answer:
False
Explanation/Reference:
Need
not be same we can we use “table” attribute to <entity>
tag.
To
know more have look into liferay service builder dtd
How
to specify Service Builder to generate remote services?
- Specify
remote-service=”true” on <service-builder/> tag.
- Specify
remote-service=”true” on <entity/> tag.
- Specify
remote-service=”true” on <column/> tag.
Answer:
Specify
remote-service=”true” on <entity/> tag.
Explanation/Reference:
<entity
name="Student" local-service="true"
remote-service="true" >
If
we use session with application scope then the values available to?
- All
portlet in same page,
- All
portlets in portal application,
- None
of these,
Answer:
All
portlets in portal application
Explanation/Reference:
A
Portlet Session is created for each user per portlet application.
This makes the Portlet Session useful for communicating all user
related information among different portlets in the same portal
application.
To
create IPC events among all portlets which are in different pages, what is property we need define?
- portlet.event.distribution=
layout-set
- portlet.event.distribution=
layout
- portlet.event.distribution=
all-pages
Answer:
portlet.event.distribution=
layout-set
Explanation/Reference:
Go
through following statement in portal.propeties file
#
Set this property to specify how events are distributed. If the value
is
#
"layout-set", then events will be distributed to all
portlets contained in
#
a layout set. If the value is "layout", then events will be
distributed to
#
all portlets that are present in a layout.
#
portlet.event.distribution=
layout-set
Liferay
core Java script library used by Liferay?
- AUI,
- YUI,
- jQuery,
- DOJO
Answer:
AUI
Explanation/Reference:
Liferay
used AUI as it core javascript library.
To
add search index for all user fileds in the search what is best
practice?
- Use
ext to create indexer,
- create
hook for Indexer post processor
Answer:
Create
hook for Indexer post processor
Explanation/Reference:
Hook
can do only override global JSPs,Struts Action,portal properties?
- Yes,
- No
Answer:
No
Explanation/Reference:
Hooks
have lot more capabilities it can also used overide portal services,
crate Indexer Post Processor and create filters
What
is method to verify valid email?
- HtmlUtil.isEmail(),
- StringUtil.isEmail(),
- Validator.isEmailAddress(emailAddress)
Answer:
Validator.isEmailAddress(emailAddress)
Explanation/Reference:
Hooks
can be used to?
- override
portal core struts actions
- override
portlet struts action
- create
web services
Answer:
override
portal core struts actions,
override
portlet struts action,
Explanation/Reference:
Best
practice Plugin portlet can import classes from ?
- portal-service.jar
- portla-impl.jar
- portlet.jar
- ext-impl.jar
Answer
portlet.jar
portal-service.jar,
Explanation/Reference:
We
can use portal-service.jat and portlet.jar related classes in plugin
portlet development.
Portal-impl.jar
is core portal implementation is not exposed to out side of
portal,same ext-impl also not exposed out of portal.
Plugin
portlet is separate context so the two(portla-impl.jar,ext-impl.jar
) jars are not available to plugin portlet.
how
to defined path of resource action file in Plugin portlet?
- portlet
property resource.action.configs
- portal
property resource.action.configs
Answer:
portlet
property “resource.action.configs”
Explanation/Reference:
We
will use resource.actions.configs=resource-actions/default.xml
in portlet.properties file which in respective plugin portlet
Ext
should be used to ?
- Override
JSP pages,
- Override
portla proerprites,
- create
fileters,
- Override
deployment descriptors of portal portlets,
Answer:
Override
deployment descriptors of portal portlets
Explanation/Reference
Hooks
can do Override JSP pages,Override
portla properties, create filters but it cant do override
deployment descriptors of portal portlets here
we need exts.
Application
display implementation steps?
Answer:
Follow
the below all steps
Explanation/Reference
- Create
and register your custom PortletDisplayTemplateHandler class.
- Now
that we’ve created the template handler, declare it with the
<template-handler>...</template-handler> tags in the
Location Listing Portlet’s <portlet> element of your
liferay-portlet.xml file:
- Since
the ability to add ADTs is new to your portlet, we need to configure
permissions so that administrative users can grant permissions to the
roles that will be allowed to create and manage display templates.
Just add the action key ADD_PORTLET_DISPLAY_TEMPLATE to your
portlet’s docroot/WEB-INF/src/resource-actions/default.xml file:
- Now
that your portlet officially supports ADTs, you’ll want to expose
the ADT option to your users. Just include the
liferay-ui:ddm-template-selector taglib in the JSP file you’re
using to control your portlet’s configuration mode (e.g.,
config.jsp if you choose to have it created through Liferay Developer
Studio’s New Portlet wizard), providing the required information.
We’ll add the display settings to the Location Listing Portlet’s
configuration.jsp file
- You’re
almost finished, but you still have to extend your view code to
render your portlet with the selected ADT. Here is where you decide
exactly which part of your view will be rendered by the ADT and what
will be available in the template context. To do this, add the
following code outlined below to your Location Listing Portlet’s
view.jsp file
Note:
They
will give multiple check boxes for answers we need to select all
relevant statement check boxes.
When
use newly create in my account page can see
"users.form.update.main=details,password,organizations"
if override this property form hook as follows
"users.form.update.main=details,password,organizations,sites,roles"
it can be changed the use my account page sections ?
- True
- False,
Answer:
False
Explanation/Reference:
From
hook we cannot modify users.form.update.main portal property
.we should use ext .
Best
practice to override “UserLocalServiceUtil.authenticateByuserName()”
we will use wrapper service “MyUserLocalServiceImpl”
- Defined
service in liferay-hook.xml as follows <service><service-type>com.liferay.portal.service.UserLocalService</service-type><service-impl>com.liferay.sample.hook.MyUserLocalServiceImpl</service-impl></service>.
- Override
authenticateByuserName() method.
- Implement
custom Logic and call super.authenticateByuserName method if
applicable.
- copy
all methods from UserLicalServiceImpl in MyUserLocalServceImpl.
Answer:
The
first three statements are correct.
Defined
service in liferay-hook.xml as follows
<service>
<service-type>
com.liferay.portal.service.UserLocalService
</service-type>
<service-impl>
com.liferay.sample.hook.MyUserLocalServiceImpl
</service-impl>
</service>
Override
authenticateByuserName() method,
Implement
custom Logic and call super.authenticateByuserName method if
applicable.
Explanation/Reference:
To
populate Custom Field of Web Content in Web Content's Template what
is best practice?
- create
hook for model lister and override onAfterCreate,
- create
hook for model lister and override onBeforeCreate,
- create
hook for service override JournaArtilceLocalServiceImpl
- create
ext for service override JournaArtilceLocalServiceImpl
Explanation/Reference:
To
avoid duplicate Insertion of records when use refresh the page?
- sendRedict(),
- CleatRequestParameted()
Answer:
sendRedict(),
Explanation/Reference:
We
can also use following tag in liferay-portlet.xml
<action-url-redirect>true</action-url-redirect>
When
we extend MVCPortlet to our custom portlet class ?
- Override
init()
- override
processAction()
- override
render()
- Non
of the above
Answer:
Non
of the above
Explanation/Reference:
We
really not mandatory to override any method if we extend MVCPortlet
class
To
write separate actions in portlet class and its extend MVCPortlet
then
- We
should implement ActionCommand Interface
- We
should override processAction(--) method
- We
should override renderCommand method
Answer:
We
should implement ActionCommand Interface
We
should processAction(--) method
Explanation/Reference:
UserLocalServiceUtil
implementation available in?
- UserLocalServiceImpl
- UserService
- UserServiceImpl
- PersistnaceImpl
Answer:
UserLocalServiceImpl
Explanation/Reference:
Best
Practice to customize Add Application"
menu portlets?
- use
ext to override all portlet liferay-portlet.xml file.
- use
liferay hook plugin to override portla.proeprties by portal-ext with
dockbar.add.portlets property.
Answer:
use
liferay hook plugin to override portla.proeprties by
portal-ext with dockbar.add.portlets property
Explanation/Reference:
Find
following statements in portal.properties
##
Dockbar Portlet
#
Set the portlet IDs that will be shown directly in the "Add
Application"
#
menu.
#
dockbar.add.portlets=com_liferay_journal_content_web_portlet_JournalContentPortlet,101,110,71
Best
practice to isolate global jsp pages when we override jsp page from
hook
- crate
filename-overide.jsp and include in custom jsp.
- use
<liferay-util:buffer> to add global jsp page content.
- directly
override global jsp page.
Answer:
use
<liferay-util:buffer> to add global jsp page content
Explanation/Reference:
Expando
is?
- Customize
portlet plugin
- Build
Liferay service
- Define
custom set of fields
/its defined dynamic data definitions
- All
Answer:
Define
custom set of fields
/its defined dynamic data definitions
Explanation
and Reference
To
display language key of key “apt-at”?
- <liferay:ui:local
key="apt-at"/>
- <liferay:ui:language
key="apt-at"/>
- <liferay:ui:message
key="apt-at"/>
- <liferay:ui:success
key="apt-at"/>
Answer:
<liferay:ui:message
key="apt-at"/>
Explanation
and Reference:
To
escape the characters using following method?
- HtmlUtil.escape()
- GetterUril.escape()
- StringUtil.escape()
Answer:
HtmlUtil.escape()
Explanation
And Reference:
Which
method called for each portlet load?
- AUI.ready()
- Liferay.portlet.ready()
- Liferay.on()
- AUI.on()
Answer:
Liferay.portlet.ready()
Explanation
And Reference:
If
we create 2 ext-plugins & modify struts-config-ext.xml in both of
them, what is the load order
?
- We
cant do that. Once one plugin have struts-config-ext.xml, other ext
plugin can’t have it.
- It
will add all ext plugins combine and deploy
- all
exts deployed successfully
- last deployed ext
changed will be precedence
Answer:
We
cant do that. Once one plugin have struts-config-ext.xml, other ext
plugin can’t have it.
Explanation
And Reference:
What
are the default services which injected in each Plugin Portlet
Services?
- Assests
- WorkFlow
- Counter
Service
- Resource
Service
Answer:
Counter
Service
Resource Service
Explanation
And Reference
When
we implement services for plugin portlet using SB then each entity
serivce depend on some required portal services that is why in each
plguin portlet service by default it will be injected by some
important services .
This
information we can see in each plugin portlet XXXServiceBaseImpl.java
@BeanReference(type
= com.liferay.counter.service.CounterLocalService.class)
protected
com.liferay.counter.service.CounterLocalService counterLocalService;
@BeanReference(type
= com.liferay.portal.service.ClassNameLocalService.class)
protected
com.liferay.portal.service.ClassNameLocalService
classNameLocalService;
@BeanReference(type
= com.liferay.portal.service.ClassNameService.class)
protected
com.liferay.portal.service.ClassNameService classNameService;
@BeanReference(type
= ClassNamePersistence.class)
protected
ClassNamePersistence classNamePersistence;
@BeanReference(type
= com.liferay.portal.service.ResourceLocalService.class)
protected
com.liferay.portal.service.ResourceLocalService resourceLocalService;
@BeanReference(type
= com.liferay.portal.service.UserLocalService.class)
protected
com.liferay.portal.service.UserLocalService userLocalService;
@BeanReference(type
= com.liferay.portal.service.UserService.class)
protected
com.liferay.portal.service.UserService userService;
@BeanReference(type
= UserPersistence.class);
protected
UserPersistence userPersistence;
Note:
These
are sample model questions and its options. Please you should cover
the specified topics from certification blue print.
Posts
