<div dir="ltr">Including CDI-DEV<div><br><div class="gmail_quote">---------- Forwarded message ----------<br>From: <b class="gmail_sendername">Todor Boev</b> <span dir="ltr"><<a href="mailto:rinsvind@gmail.com">rinsvind@gmail.com</a>></span><br>Date: Fri, Sep 8, 2017 at 11:03 AM<br>Subject: Re: [cdi-dev] Correct way to programatically instantiate a Bean<br>To: Matej Novotny <<a href="mailto:manovotn@redhat.com">manovotn@redhat.com</a>><br><br><br><div dir="ltr">Hi Matej,<div><br></div><div>I am struggling to understand what do you mean by "bean".</div><div>The Bean<T> object that produces objects of type T, or each individual object of type T?</div><div><br></div><div>If it is the T this should be the first of my code snippets: a new CreationalContext for every new T.<br></div><div>If it is the Bean<T> this should be the second of my code snippets: one CreationalContext all new T.</div><div><br></div><div>Regards,</div><div>Todor</div><div><div class="h5"><div class="gmail_extra"><br><div class="gmail_quote">On Fri, Sep 8, 2017 at 8:42 AM, Matej Novotny <span dir="ltr"><<a href="mailto:manovotn@redhat.com" target="_blank">manovotn@redhat.com</a>></span> wrote:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">Hi Todor,<br>
<br>
if I am not mistaken, the CreationalContext is a way to bind<br>
dependent instances to bean (and so align their lifecycles).<br>
<br>
Which means I'd use new CreationalContext for each bean.<br>
<br>
Matej<br>
<div><div class="m_-1828454808226036098h5"><br>
----- Original Message -----<br>
> From: "Todor Boev" <<a href="mailto:rinsvind@gmail.com" target="_blank">rinsvind@gmail.com</a>><br>
> To: <a href="mailto:cdi-dev@lists.jboss.org" target="_blank">cdi-dev@lists.jboss.org</a><br>
> Sent: Thursday, September 7, 2017 5:07:35 PM<br>
> Subject: [cdi-dev] Correct way to programatically instantiate a Bean<br>
><br>
> Hello,<br>
><br>
> I need to create beans from a portable extension.<br>
> It is not clear to me if every instance of a bean must have an associated<br>
> instance of CreationalContext or rather one CreationalContext must be used<br>
> for all instances:<br>
><br>
> // Store a CreationalContext per bean instance<br>
> BeanManager manager = ...<br>
> Bean<T> bean = ...<br>
> Context ctx = manager.getContext(bean.getSco<wbr>pe());<br>
><br>
> Map<T, CreationalContext<T>> dependents = ...<br>
><br>
> public T createBean() {<br>
> CreationalContext<T> cctx = manager.createCreationalContex<wbr>t(bean);<br>
> T instance = ctx.get(bean, cctx);<br>
> dependents.put(instance, cctx);<br>
> return instance;<br>
> }<br>
><br>
> public void destroyBean(T instance) {<br>
> dependents.computeIfPresent(in<wbr>stance, (inst, cctx) -> {<br>
> bean.destroy(inst, cctx);<br>
> return null;<br>
> });<br>
> }<br>
><br>
> // CDI tracks dependents for me<br>
> BeanManager manager = ...<br>
> Bean<T> bean = ...<br>
> Context ctx = manager.getContext(bean.getSco<wbr>pe());<br>
> CreationalContext cctx = manager.createCreationalContex<wbr>t(bean);<br>
><br>
> public T createBean() {<br>
> T instance = ctx.get(bean, cctx);<br>
> return instance;<br>
> }<br>
><br>
> public void destroyBean(T instance) {<br>
> bean.destroy(instance, cctx);<br>
> }<br>
><br>
> Best Regards,<br>
> Todor<br>
><br>
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