Cool. Thanks for the update! -- Ikai Lan Developer Programs Engineer, Google App Engine Blogger: http://googleappengine.blogspot.com Reddit: http://www.reddit.com/r/appengine Twitter: http://twitter.com/app_engine
On Sun, Dec 26, 2010 at 1:48 AM, Sky <[email protected]>wrote: > I changed all List<Double> properties in my persistent class to > double[] arrays and > made these properties unindexed, because I never need to query on > these. > To make attributes unindexed I used the following annotation: > > @Extension(vendorName="datanucleus", key="gae.unindexed", > value="true")//unindexed property > private double[] listProperty; > > That fixed the problem and furthermore made the access faster... > > Marcus > > > > > On 14 Dez., 20:03, "Ikai Lan (Google)" > <[email protected]<ikai.l%[email protected]> > > > wrote: > > It's not an issue with the data type, it's an issue with queries that > look > > into multiple list properties: > > > > http://code.google.com/appengine/docs/java/datastore/queriesandindexe... > > > > What you have is an example of an exploding index. Rather than filtering > in > > query, is there any way you can filter for a subset of results using > > datastore operations, then filter in memory? > > > > -- > > Ikai Lan > > Developer Programs Engineer, Google App Engine > > Blogger:http://googleappengine.blogspot.com > > Reddit:http://www.reddit.com/r/appengine > > Twitter:http://twitter.com/app_engine > > > > On Tue, Dec 14, 2010 at 3:35 AM, androidDeveloper < > [email protected] > > > > > wrote: > > > I got an "IllegalArgumentException: Too many indexed properties for > > > entity" Exception when saving an entity that looks like this: > > > ... > > > @Persistent > > > @Element(dependent = "true") > > > @Order(extensions = @Extension(vendorName="datanucleus", > key="list- > > > ordering", value="aDate asc")) > > > private List<ClassA> classAList; //ClassA only contains basic > > > properties like String and double > > > > > @Persistent > > > private double[] list1; > > > @Persistent > > > private double[] list2; > > > @Persistent > > > private double[] list3; > > > > > When I save an object, that has no more than 10 objects in classAList > > > and 3600 elements in each of the double[] Arrays list1-3 the error > > > above occurs in datastore. > > > I know that there exists a cap for indexed properties per entity of > > > max 5000. But I though this would only affect list porperties? > > > My question is, why are double arrays indexed? I thougt only List > > > Properties would be indexed? > > > Is double[] handled like List<Double> in app engines datastore? > > > > > -- > > > You received this message because you are subscribed to the Google > Groups > > > "Google App Engine for Java" group. > > > To post to this group, send email to > > > [email protected]. > > > To unsubscribe from this group, send email to > > > [email protected]<google-appengine-java%[email protected]> > <google-appengine-java%[email protected]<google-appengine-java%[email protected]> > > > > > . > > > For more options, visit this group at > > >http://groups.google.com/group/google-appengine-java?hl=en. > > > > > > -- > You received this message because you are subscribed to the Google Groups > "Google App Engine for Java" group. > To post to this group, send email to > [email protected]. > To unsubscribe from this group, send email to > [email protected]<google-appengine-java%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/google-appengine-java?hl=en. > > -- You received this message because you are subscribed to the Google Groups "Google App Engine for Java" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/google-appengine-java?hl=en.
