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Craig L Russell commented on JDO-751:
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I'm still not convinced that optionalPC.orElse(anything) has value
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Craig L Russell commented on JDO-751:
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Starting to work on the specification:
Persistent Object Model
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Andy Jefferson commented on JDO-751:
1. I said DN equates a transient to null (nothing else reasonable to
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Tilmann Zäschke commented on JDO-751:
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1. About not being able to handle transient PCs, what about the
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Tilmann Zäschke commented on JDO-751:
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Thanks for the feedback.
1. Yes, you are right, and I do not
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Andy Jefferson commented on JDO-751:
Comments from cursory scan of the patch
1. You use a transient PC
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Tilmann Zäschke commented on JDO-751:
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As mentioned in the telecon, I found that the query
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Tilmann Zäschke commented on JDO-751:
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Interesting. I had tried it with variables, but they only gave me
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Craig L Russell commented on JDO-751:
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Just looked again at the class file metadata available at
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Craig L Russell commented on JDO-751:
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Tilmann: It might make more sense simply to say that the behavior
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Tilmann Zäschke commented on JDO-751:
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I just realise that throwing an exception during enhancement
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Craig L Russell commented on JDO-751:
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Regarding Optional
I think we should throw
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Tilmann Zäschke commented on JDO-751:
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The argument or supporting {{orElse()}} would be that these are
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Renato Garcia commented on JDO-751:
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{quote}
MemberMetadata.getFieldType should return "Optional". I don't
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Renato Garcia commented on JDO-751:
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{quote}
I also think (as I mentioned earlier) properties of the
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Craig L Russell commented on JDO-751:
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I'd like to think how to accommodate object databases, where the
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Craig L Russell commented on JDO-751:
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Having begun to work with JavaScript over the last few years, I
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Tilmann Zäschke commented on JDO-751:
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{quote}
{{Optional.get}} will never give you back a {{null}}, it
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Renato Garcia commented on JDO-751:
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{quote}
I still don't get the difference between empty and null.
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Craig L Russell commented on JDO-751:
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Here's another try at a solution.
Optional is a Java domain
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Tilmann Zäschke commented on JDO-751:
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@Craig
Sorry, I think overlooked your post.
You raised an
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Tilmann Zäschke commented on JDO-751:
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I still don't get the difference between empty and null.
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Renato Garcia commented on JDO-751:
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What about the type of the returned field in the JDOQL result clause
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Renato Garcia commented on JDO-751:
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[~apacheb...@tkuhn.de]
I've edited to my comment to clarify what I
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Craig L Russell commented on JDO-751:
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I'd suggest we consider a field of type Optional to be of type T
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Renato Garcia commented on JDO-751:
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What would be the type of the parameter for a variable in a query?
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Renato Garcia commented on JDO-751:
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Regarding "shortcuts", I don't see why they change semantics? Aren't
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Renato Garcia commented on JDO-751:
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I don't think Optional can reference null, it's either a value or
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Tilmann Zäschke commented on JDO-751:
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I think there still is a problem when writing {{postcode == null}}
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Renato Garcia commented on JDO-751:
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You shouldn't have null references when using Optional, it defeats the
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Renato Garcia commented on JDO-751:
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In case we would like to make it not ambiguous in JDOQL how would this
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Tilmann Zäschke commented on JDO-751:
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I don't think querying for {{null}} is conceptually wrong. It
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Tilmann Zäschke commented on JDO-751:
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I completely agree, that defeats the purpose of {{Optional}} :-).
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Tilmann Zäschke commented on JDO-751:
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??How is this related to the "shortcuts" changing semantics, as in
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Tilmann Zäschke commented on JDO-751:
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Just to repeat what was send at the end of the telecon: I favour
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Tilmann Zäschke commented on JDO-751:
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Maybe it should also be considered whether JDO may at some point
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Renato Garcia commented on JDO-751:
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{quote}I think it is related because auto-dereferencing means that you
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Renato Garcia commented on JDO-751:
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{quote}Fun question (not a likely use-case): How do we treat
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Tilmann Zäschke commented on JDO-751:
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??perhaps it should be also true that querying with null on an
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Craig L Russell commented on JDO-751:
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I'd like to propose that Optional be strictly a
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Tilmann Zäschke commented on JDO-751:
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But what happens in your example if {{foo}} is a variable and is
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Renato Garcia commented on JDO-751:
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{quote}
But what happens in your example if foo is a variable and is
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Andy Jefferson commented on JDO-751:
>From Apache JDO "minutes"
Q. Does it make sense to support
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Tilmann Zäschke commented on JDO-751:
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I completely agree with the answers.
Just to clarify the first
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Renato Garcia commented on JDO-751:
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{quote}
Just to clarify the first question: I see that 'Optional'
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