On May 25, 2011, at 2:24 PM, Mike Schrag wrote:
> Wait .. What? Why?
I thought I covered that: "If I never try to upstage (Mike) then it'll never
happen, right?!"
> Use the eo's snapshot.
Well sure, when you say it like that, my idea sounds stupid. :-)
> Sent from my iPhone
Sent from my Mac, where I have all of the Wonder source code and still can't
outdo Mike with just his memory of the codebase.
>
> On May 25, 2011, at 2:20 PM, David Avendasora <webobje...@avendasora.com>
> wrote:
>
>> I'm guessing this will trigger another round-trip to the db, but what about
>> adding this to your EOGenericRecord subclass:
>>
>> public int rawHashCode() {
>> return EOUtilities.rawRowsMatchingKeyAndValue(editingContext(),
>> Identity.ENTITY_NAME,
>> ID_KEY,
>> primaryKey())
>> .lastObject()
>> .hashCode();
>> }
>>
>> Obviously, getting the value at a higher level would be better, but does
>> this at least return the same hashCode for every fetch?
>>
>> Of course, Mike's ERCStamped solution is probably better with less overhead,
>> but what the heck. If I never try to upstage him then it'll never happen,
>> right?!
>>
>> Dave
>>
>> On May 25, 2011, at 1:55 PM, Pascal Robert wrote:
>>
>>> I'm trying to find a way to generate a HTTP ETag for EOs so that caching
>>> can be done for REST services. What I want to do is to have the same ETag
>>> value for each representation of the EO, so when one of the values change,
>>> the ETag value will also change, but if the EO have the same value, it will
>>> generate the same ETag as another request got.
>>>
>>> Problem is: I don't know what to use. I tried with myEO.hashCode() but I
>>> did some tests and every time I fetch the EO, the hashcode is different
>>> even if the data didn't change. I'm thinking of doing a MD5 digest of part
>>> of the EO, but I was wondering if another way exist? I could use a "last
>>> modified" date and generate a MD5 of that too, but that date is a better
>>> option for the Last-Modified header.
>>>
>>> --
>>> Pascal Robert
>>> prob...@macti.ca
>>>
>>> WOWODC 2011 : July 1-2-3, Montreal. wowodc.com
>>>
>>> AIM/iChat : MacTICanada
>>> LinkedIn : http://www.linkedin.com/in/macti
>>> Twitter : pascal_robert
>>>
>>>
>>>
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>>
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