Not really. An entity handles a state which can prevent it. Nothing mandates it to work Le 20 oct. 2013 09:50, "José Luis Cetina" <[email protected]> a écrit :
> What about using a detached entity?? The detached entity will work like a > DTO? > > From Real World Java EE Patterns (Adam Biem) 2009 > Problem > The origin problem statement was: “You want to transfer multiple data > elements over a tier” > ( > > http://java.sun.com/blueprints/corej2eepatterns/Patterns/TransferObject.html > ). > This particular problem was elegantly solved in Java EE 5 with detachment > of persistent entities. There is > no need for the introduction of another class just for transferring the > entities data. JPA entities can > implement a java.io.Serializable interface and be transferred between > tiers, even remote ones. > CMP 2.x entities weren’t Serializable, the developer was forced to copy > their states to a remotely > transferable structure—the Transfer Object. > > > > 2013/10/19 Howard W. Smith, Jr. <[email protected]> > > > responses below... > > > > On Sat, Oct 19, 2013 at 3:46 PM, Mark Struberg <[email protected]> > wrote: > > > > > be careful with immediate=true. You get all sorts of nasty side > effects. > > > > > > see page 92 in > > > > > > http://people.apache.org/~struberg/eesummit2013/Java%20EE%20Summit%20-%20pitfalls%20in%20EE.pdf > > > > > > > > I definitely agree and understand about immediate=true, and guess what, i > > found it very useful to disable validation as instructed on page 92 of > the > > PDF file. > > > > clarification of my use/understanding: > > > > i am 'not' using immediate=true, when i user is to select a row on > > datatable, and then click commandbutton/link/menuitem, which does a POST > of > > the selected row on the datatable, and bean uses the selected row to > > prepare the UI for the next view that is 'rendered' via > > ui:include=#{bean.page}. see below and keep reading, please. > > > > <p:menuitem value="Add" icon="ui-icon ui-icon-circle-plus" > > > > actionListener="#{pf_pointOfContactController.prepareCreate()}" > > update="#{pf_pointOfContactController.getAjaxUpdate()}"/> > > <p:menuitem value="Edit" icon="ui-icon ui-icon-pencil" > > > > actionListener="#{pf_pointOfContactController.prepareEdit()}" > > update="#{pf_pointOfContactController.getAjaxUpdate()}"/> > > <p:menuitem value="View" icon="ui-icon-folder-open" > > > > actionListener="#{pf_pointOfContactController.prepareView()}" > > update="#{pf_pointOfContactController.getAjaxUpdate()}"/> > > <p:separator/> > > <p:menuitem value="Copy to Ordered By" icon="ui-icon ui-icon-newwin" > > > > actionListener="#{pf_pointOfContactController.copySelectedRows()}" > > update="#{pf_pointOfContactController.getAjaxUpdate()}"/> > > <p:menuitem value="Delete" icon="ui-icon ui-icon-trash" > > > > > actionListener="#{pf_pointOfContactController.confirmDeleteSelectedRows()}" > > update="#{pf_pointOfContactController.getAjaxUpdate()}"/> > > > > but, for a readonly page that has commandbutton/links to render a new > view, > > based on the current @Entity that is held in the JSF controller/bean > class, > > i use immediate=true without issue and I think it fits/meets the > > occasion/requirement, because there is no need to do validation phase or > > update model values. see below. :) > > > > <p:commandButton value="Browse" icon="ui-icon-search" > immediate="true" > > update="#{pf_pointOfContactController.getAjaxUpdate()}" > > > > actionListener="#{pf_pointOfContactController.prepareList()}"/> > > <p:commandButton value="Delete" icon="ui-icon ui-icon-trash" > > immediate="true" update="#{pf_pointOfContactController.getAjaxUpdate()}" > > > > actionListener="#{pf_pointOfContactController.confirmDelete()}"/> > > <p:commandButton value="Edit" icon="ui-icon ui-icon-pencil" > > immediate="true" update="#{pf_pointOfContactController.getAjaxUpdate()}" > > > > actionListener="#{pf_pointOfContactController.prepareEdit()}"/> > > > > > > -- > ------------------------------------------------------------------- > *SCJA. José Luis Cetina* > ------------------------------------------------------------------- >
