Jeff, not sure if I can take the approach you said to make a Annotation
interface, as the object i try to store in the datastore is a Map, more
specifically JSONObject, it my library binds JSON String, Number, Boolean,
List and Map directly to Entitiy and EmbeddedEntity...
On Sunday, May 5, 2013 11:46:34 PM UTC+8, Jeff Schnitzer wrote:
>
> No, I mean make up a field in your POJO that _is_ indexed and
> automatically populate it with the value you want to index. A very crude
> example is something like this:
>
> class Person {
> // ...
> String name;
> @Index String nameNormalized;
>
> public void setName(String value) {
> name = value;
> nameNormalized = value.toLowerCase();
> }
> }
>
> Now you can filter by nameNormalized and voila, you have case-insensitive
> queries.
>
> You might have to get imaginative about how you create these synthetic
> indexes, of course - especially when you have nested layers of collections
> of EmbeddedEntity. But you should be able to figure out something that will
> work.
>
> Jeff
>
>
> On Sat, May 4, 2013 at 11:08 PM, xybrek <[email protected] <javascript:>>wrote:
>
>> Ok I see, when you say synthetic index, do you mean create a Index kind
>> on a different namespace?
>>
>> Xybrek
>>
>>
>> On Sunday, May 5, 2013 1:42:55 PM UTC+8, Jeff Schnitzer wrote:
>>
>>> EmbeddedEntity fields are not indexable. This is mentioned in the
>>> javadocs:
>>>
>>> https://developers.google.com/**appengine/docs/java/javadoc/**
>>> com/google/appengine/api/**datastore/EmbeddedEntity<https://developers.google.com/appengine/docs/java/javadoc/com/google/appengine/api/datastore/EmbeddedEntity>
>>>
>>> This doesn't prevent you from making your own synthetic index in the
>>> top-level Entity though.
>>>
>>> Jeff
>>>
>>>
>>>
>>> On Sat, May 4, 2013 at 8:24 PM, xybrek <[email protected]> wrote:
>>>
>>>> I have few question regarding Query'ing EmbeddedEntity with GAE
>>>> datastore:
>>>>
>>>> - Is EmbeddedEntity query-able? and Index-able?
>>>> - If so, then how to index such embedded entity?
>>>> - Does Query, query Filter works with EmbeddedEntity
>>>> - And that can we build queries that query Entity then filter its
>>>> EmbeddedEntities
>>>>
>>>> I've searched the docs by can't seem to find any clear answer to these
>>>> question.
>>>>
>>>> http://stackoverflow.com/**questions/16380962/query-**embedded-entities<http://stackoverflow.com/questions/16380962/query-embedded-entities>
>>>>
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>>>
>
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