On Mon, May 25, 2009 at 1:52 AM, Ashok Hariharan <ashok@parliaments.info> wrote:

On Sun, May 24, 2009 at 3:17 PM, Duggan Kim <mdkimani@gmail.com> wrote:
>
> Every other dependency is taken care of in Spring's
> applicationContext.xml config file in a similar manner.
>
> When tested using JUnit or on the browser, a NullPointerException is
> thrown at (2). The DAO
> defined in the superclass is null in the subclass. This raises the
> question whether Spring's DI supports normal Java class inheritance
> and if it does, is there any special config required for this?

I am not so familiar with spring as such... but dependency injection
frameworks require interfaces for both implementing classes *and*
properties .... is the customerDAO object based on an interface ?

ashok

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