Fitness & Motivation

Bean

RequestContext context = RequestContext.getCurrentInstance(); context.execute("PF('varDialog').show();”);

.xhtml

(adsbygoogle = window.adsbygoogle || []).push({});

Bean:

public void redirect() { try { FacesContext ctx = FacesContext.getCurrentInstance(); ExternalContext extContext = ctx.getExternalContext();

//Example: parsing with parameter ?id=“123”&name=“somename”

String id=123,name=“somename”; String charEncoding = extContext.getRequestCharacterEncoding(); String name = URLEncoder.encode("id", charEncoding); String value = URLEncoder.encode(id, charEncoding); String name2 = URLEncoder.encode("name", charEncoding); String value2 = URLEncoder.encode(name, charEncoding); String url = extContext.encodeActionURL(ctx.getApplication().getViewHandler().getActionURL(ctx, ""));

//Example path: PROJECT/app/customer/list?execution=e5s1 //path of redirection: PROJECT/app/customer/list?id=123&name=somenameexecution=e5s1 //replace with your path

String newUrl= url.replace("/list?", "?"+name + "="+value+"&"+name2+"="+value2);

   extContext.redirect(newUrl); } catch (IOException ioe) {    throw new FacesException(ioe); }     }

In view .xhtml:

<p:ajax event=“click” listener=#{bean.redirect} update=“:idForm”>

To retrieve the parameter in bean:

public void init(){

protected transient HttpServletRequest req = (HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();

String id=req.getParameter("id”);

String name=req.getParameter("name”);

Get this right already, I been asked so numerous times during interview, but yet still don't know how to correctly answer this:

Short and simple answers:

1) Java does not support multiple inheritance, therefore we use interface.

2) Java can only extends one class but allows to implement many classes.

3) Abstract classes have method with definition, interface is (for show only, just headings) just the interface. Class that implement interface needs to provide the the definition.

4) Interface allows more flexible and less coupling.

5) No private method allows in interface, all public in order for classes to implement. 

parsing value from beanA to beanB:

method 1

In spring xml flow declare:

<var name="beanA" class="com.package.beanA"/> <var name="beanB" class="com.package.beanB"/> <on-entry> <evaluate expression="beanA.start()"/> <evaluate expression="baenB.start(beanA.someValue)"/> </on-entry>

method 2

using FacesContext in JSF (only String):

in xml:

<var name="beanA" class="com.package.beanA"/> <var name="beanB" class="com.package.beanB"/>

<transition on="redirectToPage" to="Page"/>

</view-state>

<view-state id="Page" view="externalRedirect:/path/pathBeanB/?parseValue=“#{beanA.value}”/>

in .xhtml

<p:commandButton value="Next" action="redirectToPage/>

in beanB:

protected transient HttpServletRequest req = (HttpServletRequest) FacesContext.getCurrentInstance().getExternalContext().getRequest();

Create composite component example: checkbox.

setup facelet-taglib in META-INF Folder: 

<facelet-taglib version="2.2"    xmlns="http://xmlns.jcp.org/xml/ns/javaee"    xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"    xsi:schemaLocation="http://xmlns.jcp.org/xml/ns/javaee http://xmlns.jcp.org/xml/ns/javaee/web-facelettaglibrary_2_2.xsd">  <namespace>http://www.somelink.com/somelink/composite</namespace>  <tag>    <tag-name>compositeBox</tag-name>    <component>      <resource-id>        component-path/compositeBox.xhtml      </resource-id>    </component>  </tag> </facelet-taglib>

create composite (compositeBox.xhtml):

<ui:composition xmlns="http://www.w3.org/1999/xhtml" xmlns:composite="http://java.sun.com/jsf/composite">    <composite:interface> <composite:attribute name="SelectCheckbox" />     <composite:attribute name="valueItem" />     <composite:attribute name="value" />     <composite:attribute name="bean" />      <composite:attribute name="update" />      <composite:attribute name="disable" />    </composite:interface>    <composite:implementation>    <p:selectManyCheckbox id="idCheckbox" value="#{cc.attrs.value}"  disabled="#{cc.attrs.disable}"> <p:ajax event="change" update="#{cc.attrs.update}" listener="#{cc.attrs.bean.selectAll}"/> <f:selectItem itemLabel="ALL" itemValue="all" />    <f:selectItems value="#{cc.attrs.valueItem}" var="select" itemLabel="#{select.code.concat(' - ').concat(select.name)}" itemValue="#{select.code}" /> </p:selectManyCheckbox>      </composite:implementation> </ui:composition>

To use created composite component:

declare in ui:composition

<ui:composition xmlns="http://www.w3.org/1999/xhtml"   xmlns:usehere="http://www.somelink.com/somelink/composite">

to use component:

3 ways to do it:

Method 1: Javascript and ajax

<p:ajax oncomplete="window.location.replace(window.location.href);"/>

or use window.location.assign

Method 2: From backing bean

//referesh Page

FacesContext context = FacesContext.getCurrentInstance(); String viewId = context.getViewRoot().getViewId(); ViewHandler handler = context.getApplication().getViewHandler(); UIViewRoot root = handler.createView(context, viewId); root.setViewId(viewId); context.setViewRoot(root);

Method 3: update="@all"

Let me remind you of something positive. I not saying this’s fact or truth, but what I’m saying is... Imagine… We are all here for the simple reason…… of simply being. We have to be here for the world to work, Black has White, Love has Hate, Chaos has Peace, Self has others. We as a person need to exist, to simply have others exit around us. So then…. If this is the way u live why stop your boundaries? Why stop at average? Why don’t you try and become or create a more Fulfilling energy for others to live off. MAKE A STATEMENT IN THIS WORLD. People come out with the excuses of. I’m too tired or I’m feeling sad or even I can’t be bother. GO OUT AND GET WHAT U WORTH. YOU ARE WORTH THE WORLD. You are part of this world, you can achieve greatness. You are allowed to have those off days, because you need those off days to have those good days, is OK to fall…. Because when you fall you get back up. All you want is for the pain to stop and be able to breathe. That is your only goal, your only need, same as success. When you want something as much as you want to breathe, you will overcome the pain and you will achieve greatness. If you want something you can get it, it only takes WILL. When you get inspired relies that person is made out of the same whatever it is as you and the only differences is that person is the one who fall just that little harder. If out world is only made out of victims then why don’t you become the Bigger energy the Stronger Energy, The superior one. Can’t you see we live off each other’s? Is people that shine brightly who affect us positively. STOP waiting for other to do it first and break thru and GO DO IT YOURSELF. Look at the 4 minute miles people thought it impossible and now EVERYDAY people can achieve it. If you can break through for yourself you will break through for others and others will be in all of you. Increase your Energy and let others Strive off it. When living life try new things jump, fool, Fight, create love. Live Extreme and push your Boundaries WHY? Simply because there is no others time for you to do this. You can dream off this thing but understand you can also achieve them. The moments that take your breath away are the one that accounted. You need the downs to make the ups. You need the ups to create the downs. You need to feel the opposite to truly understand the full reality of the life you were living. I DON’T CARE how young or old you are, age is a number and nothing more and should be determined by experiences, by what you done and tested, what you dwelled. How many times you have push your limits and broken down? I don’t care if you had been beaten to the floor or if your legs are too tired to lift that weight. Break through that barrier and creates new one for you and for others to show off. Get back up and live life because every second, EVERY SECOND, spent not doing so is time wasted, time that you will never get back. You can become whatever you want. Is you that has to want it, has to fight for it. When you love something you don’t sleep day or night to get it. If you love something you will stop at nothing for it. It isn’t about the money because when you truly love something money is no object. It appears. When there is a will there’s a way. When you truly need something you can find a way and you stop at nothing to reach it. The more you put in the more you get out and eventually you’ll master it. Become free, live life long; enjoy the surface, because you will always prevail. You want to die knowing you touch other people heart be powerful, be sincere, indicate other in negative mind. Live your dream and truly master life.