Chuck,
On 12. 1. 2015, at 7:50, Chuck Hill <[email protected]> wrote:
> It should find it. Where / how did you add it?
A pretty typical d'oh moment. Sort of I supposed the „creates an EOAttribute
whose parent is owner“ part of
attr=new EOAttribute(ad,entity)
would, ahem, actually _add_ the attribute to the owner. It does not.
Contrariwise,
attr=new EOAttribute(ad,entity)
entity.addAttribute(attr)
works all right, it seems.
> How are you telling that it was not added?
Logged out at first eo.attributes, then the entity of my eo, and eventually
both the 'attr' and 'entity' pre- and post- creation in the code above, like
attr=new EOAttribute(ad,entity)
println "WTH?!?\nattr: $attr\nent: $entity"
Thanks a lot,
OC
> On 2015-01-11, 10:37 PM, "OC" wrote:
>
> Probably found the culprit.
>
> I have added the appropriate attribute programmatically to the entity; and it
> seems that it was NOT added -- and therefore storedValueForKey did not find
> it. Makes sense. Oh, sigh.
>
> All the best,
> OC
>
>
> On 12. 1. 2015, at 6:59, OC <[email protected]> wrote:
>
> Hello there,
> I must be missing something very obvious now.
> My application (rather complex) lately started sometimes to go stack
> overflow. I have found the culprit is a code where I call storedValueForKey
> in my own ERXGenericRecord subclass. The stack goes like this:
> (i) handleQueryWithUnboundKey (which my EO overrides) get called -- I do some
> internal checking there, and eventually call my own installed accessor,
> essentially, 'this.foo()'. That works well.
> (ii) the 'foo' accessor contains just "this.storedValueForKey('foo')", and it
> indeed gets called all right.
> (iii) now, I thought it would try to get the value of 'foo' from snapshot, or
> fetch it from the database, or whatever. I was wrong -- it goes again to
> handleQueryWithUnboundKey, GOTO (i), stack overflow.
> Here's the important part of backtrack:
> ===
> ...
> at
> cz.ocs.model.OCSEnterpriseObject.handleQueryWithUnboundKey(OCSEnterpriseObject.groovy:1173)
> at
> com.webobjects.foundation.NSKeyValueCoding$Utility.handleQueryWithUnboundKey(NSKeyValueCoding.java:494)
> at
> com.webobjects.foundation.NSKeyValueCoding$_KeyBinding.valueInObject(NSKeyValueCoding.java:894)
> at
> com.webobjects.eocontrol.EOCustomObject.storedValueForKey(EOCustomObject.java:1634)
> at com.webobjects.eocontrol.EOKeyValueCoding$storedValueForKey.call(Unknown
> Source)
> at cz.ocs.model.OCSEOUtilities$FOO_ACCESSOR(OCSEOUtilities.groovy:60)
> ...
> at
> cz.ocs.model.OCSEnterpriseObject.handleQueryWithUnboundKey(OCSEnterpriseObject.groovy:1173)
> ...
> ===
> It even is documented thus, EOCustomObject.storedValueForKey tries first _foo
> and foo, then... yadda yadda ... and if all fails, it is documented to go
> handleTakeValueForUnboundKey (which seems to be a typo in documentation,
> meaning handleQueryWithUnboundKey instead):
> ===
> ...
> public Object storedValueForKey(String key)
> Returns the value for the property identified by key. This method is used
> when the value is retrieved for storage in an object store (generally, this
> is ultimately in a database) or for inclusion in a snapshot. The default
> implementation provided by EOCustomObject is similar to the implementation of
> valueForKey, but it resolveskey with a different method instance variable
> search order:
> • Searches for a private accessor method based on key (a method preceded by
> an underbar). For example, with a key of "lastName", storedValueForKey looks
> for a method named _getLastName or _lastName.
> • If a private accessor isn't found, searches for an instance variable based
> on key and returns its value directly. For example, with a key of
> "lastName",storedValueForKey looks for an instance variable named _lastName
> or lastName.
> • If neither a private accessor or an instance variable is found,
> storedValueForKey searches for a public accessor method based on key. For the
> key "lastName", this would be getLastName or lastName.
> • If key is unknown, storedValueForKey calls handleTakeValueForUnboundKey.
> ...
> ===
> But darn, _where_ then is the specific EOF code to get the attribute value
> from snapshot/from database? So far I thought EOCustomObject overrides the
> generic storedValueForKey appropriately (so that instead of trying _foo,
> _getFoo, foo and getFoo it reads from snapshot/database). It does not seem
> to, though?!?
> What am I missing here?!?
> Thanks a lot,
> OC
>
>
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