How To use Values from a bean in a other

[Carlos Ortiz <co...@coral-technologies.com>]

Hi
How To use Values from a bean in a other
I'll to do this.

I Have my Bean A
then i like to put the arrtibute xx in a bean B

example
    use the iduser attribute form a session bean in a request bean for a 
simple search ,
the request bean has a attribute iduser. but how do i set it to request 
iduser = session iduser,
i also need that for request to request bean.

thx
         

Re: How To use Values from a bean in a other

[Andrew Robinson <an...@gmail.com>]

On 5/18/07, Carlos Ortiz <co...@coral-technologies.com> wrote:
> Thx Just a couple questions.
>
> > Multiple ways
> >
> > 1) Use JBoss-Seam @In/@Out annotations to inject/outject the values
> > 2) Use managed properties in the faces-config.xml to have bean b
> > always pull the value from bean A for a given property
> Noob , How i do that ?¡

  <managed-bean>
    <managed-bean-name>A</managed-bean-name>
    <managed-bean-class>example.A</managed-bean-class>
    <managed-bean-scope>session</managed-bean-scope>
  </managed-bean>
  <managed-bean>
    <managed-bean-name>B</managed-bean-name>
    <managed-bean-class>example.B</managed-bean-class>
    <managed-bean-scope>request</managed-bean-scope>
    <managed-property>
      <property-name>valueFromA</property-name>
      <value>#{A.propertyFromA}</value>
    </managed-property>
  </managed-bean>

This assumes A has "getPropertyFromA" and B has "setValueFromA", so
just change those property names to fit your use case

> > 3) Put the value in the ExternalContext requestMap in bean A and get
> > it in bean B from the same map
> > 4) Set it directly:
> >
> > FacesContext facesContext = FacesContext.getCurrentInstance();
> > ValueBinding vb =
> > facesContext.getApplication().createValueBinding("#{B}");
> > B b = (B)vb.getValue(facesContext);
> > b.setPropValue(getPropValue());
> Does this last one works for all type of beans (request,session
> application ...) ¡?

Yes, because the faces context (application actually) already knows
the scope of every bean due to its declared scope in the
faces-context. If the bean doesn't already exist, it is created and
stored in the scope defined from the configuration file.

Re: How To use Values from a bean in a other

[Carlos Ortiz <co...@coral-technologies.com>]

Thx Just a couple questions.

> Multiple ways
>
> 1) Use JBoss-Seam @In/@Out annotations to inject/outject the values
> 2) Use managed properties in the faces-config.xml to have bean b
> always pull the value from bean A for a given property
Noob , How i do that ?¡
> 3) Put the value in the ExternalContext requestMap in bean A and get
> it in bean B from the same map
> 4) Set it directly:
>
> FacesContext facesContext = FacesContext.getCurrentInstance();
> ValueBinding vb = 
> facesContext.getApplication().createValueBinding("#{B}");
> B b = (B)vb.getValue(facesContext);
> b.setPropValue(getPropValue());
Does this last one works for all type of beans (request,session 
application ...) ¡?
>
> Do any of those match what you are looking for?
>
> On 5/18/07, Carlos Ortiz <co...@coral-technologies.com> wrote:
>> Hi
>> How To use Values from a bean in a other
>> I'll to do this.
>>
>> I Have my Bean A
>> then i like to put the arrtibute xx in a bean B
>>
>> example
>>     use the iduser attribute form a session bean in a request bean for a
>> simple search ,
>> the request bean has a attribute iduser. but how do i set it to request
>> iduser = session iduser,
>> i also need that for request to request bean.
>>
>> thx
>>
>>

Re: How To use Values from a bean in a other

[Andrew Robinson <an...@gmail.com>]

Multiple ways

1) Use JBoss-Seam @In/@Out annotations to inject/outject the values
2) Use managed properties in the faces-config.xml to have bean b
always pull the value from bean A for a given property
3) Put the value in the ExternalContext requestMap in bean A and get
it in bean B from the same map
4) Set it directly:

FacesContext facesContext = FacesContext.getCurrentInstance();
ValueBinding vb = facesContext.getApplication().createValueBinding("#{B}");
B b = (B)vb.getValue(facesContext);
b.setPropValue(getPropValue());

Do any of those match what you are looking for?

On 5/18/07, Carlos Ortiz <co...@coral-technologies.com> wrote:
> Hi
> How To use Values from a bean in a other
> I'll to do this.
>
> I Have my Bean A
> then i like to put the arrtibute xx in a bean B
>
> example
>     use the iduser attribute form a session bean in a request bean for a
> simple search ,
> the request bean has a attribute iduser. but how do i set it to request
> iduser = session iduser,
> i also need that for request to request bean.
>
> thx
>
>