On 11/19/2013 03:09 AM, Muhammad Bhutto wrote:
Hi All,
Can you please explain me this one, I have confusion which one is better.
1.
Bean<MyBean> bean = (Bean<MyBean>)
beanManager.resolve(beanManager.getBeans(MyBean.class));
MyBean= (MyBean) beanManager.getReference(bean, bean.getBeanClass(),
beanManager.createCreationalContext(bean));
This one gives you a new instance of a
client proxy. The client proxy
will forward method calls to the current contextual instance of a
particular context. You can therefore obtain the proxy once and keep it
and the method calls will be invoked on the current instance (e.g.
current request). It is also useful if the contextual instance is not
serializable - the client proxy will be and will reconnect after you
deserialize it.
2.
Bean<MyBean> bean = (Bean<MyBean>)
beanManager.resolve(beanManager.getBeans(MyBean.class));
MyBean bean = beanManager.getContext(bean.getScope()).get(bean,
beanManager.createCreationalContext(bean));
This obtains the target instance
without a client proxy. You may still
see a Weld's proxy in the class name but that is an enhanced subclass
that provides interception and decoration. If the bean is not
intercepted nor decorated this will be a plain instance of the given bean.
Usually (1) is more suitable unless you have a special use-case where
you need to access the target instance directly (e.g. to access its fields).
As i know BeanManager.getReference() always creates a whole new proxy
instance, while the Context.get() reuses an existing proxy instance if
already created before.
Is BeanManager.getReference() is more use full than Context.get() ??
Thanks
Muhammad Asif Bhutto
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