Finally found a way in case anybody was curious... Unfortunately, I
have to loop through all of my pertinent records until I have a match
on the keys. If anyone can suggest a different way (that works)
that's more efficient than below, do tell...
Query query = pm.newQuery(Categories.class, "u
"java.lang.NullPointerException at ma.CategoriesServlet.doPost
(CategoriesServlet.java:61) "
So you have an NPE in your code.
> Which log are you referring to? Can you point me to where it would be on my
> computer?
The log for GAE/J of course. No idea where you've configured it to go
to. Look
"com.google.appengine.api.datastore.Key:Categories(76)" is what's
returned on the insert:
Categories category = new Categories(user.getNickname(), account,
categoryName);
pm.makePersistent(category);
Object o = JDOHelper.getObjectId(category);
System.out.println(o.toString());
This is what's retu
> This is strange - when I retrieve the object after persisting via
> "JDOHelper.getObjectId(obj)", I get an object back no problem.
Yes, but you haven't told us what is the "id" returned by that method.
And whats in the log when you invoke that pm.getObjectById ... ?
> Then,before trying to dele
This is strange - when I retrieve the object after persisting via
"JDOHelper.getObjectId(obj)", I get an object back no problem. Then,
before trying to delete the object, I do "pm.newObjectIdInstance
(Categories.class, key)" and I get a NullPointerException. I know in
this post I've put in "Categ
> Anybody have any other ideas?
I already told you my idea, and don't see that you have checked those
things. Why not just do that ?
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I've been away for a week visiting with my wife's family but checked
today to see if there was any new posts on this issue. None,
unfortunately. Anybody have any other ideas?
On Nov 21, 10:37 am, zackmac wrote:
> Ok - before trying to delete the specific Transacation, I'm looping
> through all
Ok - before trying to delete the specific Transacation, I'm looping
through all Transactions to check if the delete request parm is the
same as Transaction.getKey().toString ["if (trans.getKey().toString
().equals(reqParm)"]. This is returning true. Isn't that evidence
enough that the key exists?
> Let me be more specific about what's happening...
Not sure why we need to know what your app does; an object has a JDO
identity, set when you persist it, and that identity has to be used
when finding it. If you put in something else then you get an
exception.
When you persist your object what i
Let me be more specific about what's happening...
1. In my jsp, I loop through a list of Transactions and display them
in a table. At the right-most column, there's a delete button.
2. When that delete button is pushed, an indicator ("delete") plus
Transaction.getKey() are stored as a request p
I figured I was - "parms.replace("delete",""))" - if the key is an
unencrypted string, I though I could just pass it in...
On Nov 19, 1:21 pm, datanucleus wrote:
> > Not sure what I'm missing here...
>
> Putting the correct identity "key" in ?
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> Not sure what I'm missing here...
Putting the correct identity "key" in ?
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