RE: [Trinidad] How to check if file exists using InputFile compon ent?

[Piotr Pikusa <Pi...@pbpolsoft.com.pl>]

Unfotunately not. If the existing file is empty the getLength() method
returns 0 too. So the problem isn't still solved.


Matthias Wessendorf  wrote:

hi piotr,

the UploadedFile interfaces has a getLength() method

it's 0, when the file isn't there..

-M

On 7/25/07, Piotr Pikusa <Pi...@pbpolsoft.com.pl> wrote:
> Hey!
>
> As it is mentioned in the subject I wonder if there is any possibility to
> check file existence.
> I got this code on my jsp page:
>
> [code]
>
> <tr:inputFile
>    required="true"
>    rendered="true"
>    label="Load File:"
>    value="#{backingBean.file}"
>  />
> <af:commandButton
>     text="#{"Button"}"
>     action="#{backingBean.importFile}" />
>
> [/code]
>
> which bind the value to the file property. The type of file is UploadFile.
> In backingBean I have this code:
>
> [code]
>
> UploadFile file;
>
> public void importFile(){
>         if(file != null) {
>                 doSomeAction();
>         }
>         else{
>                 returnError();
>         }
> }
>
> public UploadedFile getFile() {
>                 return file;
>         }
>
> public void setFile(UploadedFile file) {
>                 this.file = file;
> }
>
> [/code]
>
> The point of the problem is that the file is never null, no matter if file
> exists or not. If file doesn't exist the InputFile component doesn't
return
> null. The UploadFile doesn't have a method to check file existence.
> So my question is when file property can be null. And how to check if file
> exists using InputFile component and UploadFile object? (I cannot use
other
> type, but UploadFile).
>


-- 
Matthias Wessendorf

further stuff:
blog: http://matthiaswessendorf.wordpress.com/
mail: matzew-at-apache-dot-org

Re: [Trinidad] How to check if file exists using InputFile compon ent?

[Adam Winer <aw...@gmail.com>]

This sounds like a bug - you should get setFile(null) called
on your bean.

-- Adam


On 7/25/07, Piotr Pikusa <Pi...@pbpolsoft.com.pl> wrote:
> Unfotunately not. If the existing file is empty the getLength() method
> returns 0 too. So the problem isn't still solved.
>
>
> Matthias Wessendorf  wrote:
>
> hi piotr,
>
> the UploadedFile interfaces has a getLength() method
>
> it's 0, when the file isn't there..
>
> -M
>
> On 7/25/07, Piotr Pikusa <Pi...@pbpolsoft.com.pl> wrote:
> > Hey!
> >
> > As it is mentioned in the subject I wonder if there is any possibility to
> > check file existence.
> > I got this code on my jsp page:
> >
> > [code]
> >
> > <tr:inputFile
> >    required="true"
> >    rendered="true"
> >    label="Load File:"
> >    value="#{backingBean.file}"
> >  />
> > <af:commandButton
> >     text="#{"Button"}"
> >     action="#{backingBean.importFile}" />
> >
> > [/code]
> >
> > which bind the value to the file property. The type of file is UploadFile.
> > In backingBean I have this code:
> >
> > [code]
> >
> > UploadFile file;
> >
> > public void importFile(){
> >         if(file != null) {
> >                 doSomeAction();
> >         }
> >         else{
> >                 returnError();
> >         }
> > }
> >
> > public UploadedFile getFile() {
> >                 return file;
> >         }
> >
> > public void setFile(UploadedFile file) {
> >                 this.file = file;
> > }
> >
> > [/code]
> >
> > The point of the problem is that the file is never null, no matter if file
> > exists or not. If file doesn't exist the InputFile component doesn't
> return
> > null. The UploadFile doesn't have a method to check file existence.
> > So my question is when file property can be null. And how to check if file
> > exists using InputFile component and UploadFile object? (I cannot use
> other
> > type, but UploadFile).
> >
>
>
> --
> Matthias Wessendorf
>
> further stuff:
> blog: http://matthiaswessendorf.wordpress.com/
> mail: matzew-at-apache-dot-org
>