customer?.address?.street I've borrowed some syntax from Groovy to handle this case; the ?. operator returns null if the LHS is null, otherwise is traverses into the property on the RHS.
On 3/6/07, Angelo Luis <[EMAIL PROTECTED]> wrote:
No no no... How can have a null handler now??? If a have a customer -> address -> street in a text component, for example " custumer.address.street" and i dont instanciate a address, a NullPointerException is throw. With a ognl null handler, if the address is null he creates one , like Webwork... i dont need to instanciate all object graph to use in a page... i will have this same problem in t5? On 3/5/07, Howard Lewis Ship <[EMAIL PROTECTED]> wrote: > > Two problems here: > > 1) Not well formed XML. That "<" inside the test attribute isn't > allow. Use < > 2) OGNL isn't supported in T5. > > For anything more complicated than a property access, you do the work > in Java code as a synthetic property. > > On 3/5/07, Davor Hrg <[EMAIL PROTECTED]> wrote: > > Hi, > > maybe this was reported and solved but here it goes ... > > > > I've tried the tapestry tutorial and it was very nice and easy. > > I've made few mistakes but error reporting is great so it was fixed > quickly. > > > > the problem occured when I tried to add some of the proposed changes to > the > > app.. > > > > just to test the expressions I added: > > <t:comp type="If" test="ognl:index<5"> > > > > but I get the error > > Failure parsing template context:WEB-INF/Guess.html: The value of > attribute > > "test" associated with an element type "t:comp" must not contain the '<' > > character. > > > > Am I doing it wrong, or it's just a bug to be fixed later.... > > > > Davor Hrg > > > > > -- > Howard M. Lewis Ship > TWD Consulting, Inc. > Independent J2EE / Open-Source Java Consultant > Creator and PMC Chair, Apache Tapestry > Creator, Apache HiveMind > > Professional Tapestry training, mentoring, support > and project work. http://howardlewisship.com > > --------------------------------------------------------------------- > To unsubscribe, e-mail: [EMAIL PROTECTED] > For additional commands, e-mail: [EMAIL PROTECTED] > >
-- Howard M. Lewis Ship TWD Consulting, Inc. Independent J2EE / Open-Source Java Consultant Creator and PMC Chair, Apache Tapestry Creator, Apache HiveMind Professional Tapestry training, mentoring, support and project work. http://howardlewisship.com --------------------------------------------------------------------- To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
