How to use Jinq with xtend about jinq HOT 5 CLOSED

It's theoretically possible to get Jinq working with xtend (for example, I've already extended Jinq to mostly work with Scala). But in order to ensure the correctness of the queries it generates, Jinq only translates things it knows about into queries. xtend seems to be using methods that Jinq isn't familiar with like com/google/common/base/Objects:equal(Ljava/lang/Object;Ljava/lang/Object;)Z.

It is, of course, possible to make Jinq aware of those methods. Unfortunately, I currently don't have the time to learn xtend and map out all the methods it uses in its generated output.

from jinq.

By the way , I can say 'use jinq with xtend' is the best orm style in java development .

 streams.streamAll(em, typeof(Customer))
.where[o|o.name=="Bob"].toList()

the code is as same beautiful as linq . At moment , my solution is using jquerydsl with xtend .
But jquerydsl's performence is slower than jinq . And xtend use the 'final function' with guava,
So I very hope that jinq can run with xtend.

from jinq.

I've added a new version of Jinq to Maven, version 1.8.6. This version should support translating Guava's Objects.equal() to a database query. I don't have time to properly add support for extend and to do proper testing for it. But if you tell me which methods extend uses in its compiler output, then I can add support for those methods to Jinq.

from jinq.

I test 1.8.6, there is same error

Exception in thread "main" java.lang.IllegalArgumentException: Could not analyze lambda code
at org.jinq.jpa.transform.LambdaAnalysis.fullyAnalyzeLambda(LambdaAnalysis.java:197)
at org.jinq.jpa.transform.LambdaInfo.fullyAnalyze(LambdaInfo.java:116)
at org.jinq.jpa.JPAQueryComposer.applyTransformWithLambda(JPAQueryComposer.java:293)
at org.jinq.jpa.JPAQueryComposer.where(JPAQueryComposer.java:379)
at org.jinq.jpa.JPAQueryComposer.where(JPAQueryComposer.java:1)
at org.jinq.orm.stream.QueryJinqStream.where(QueryJinqStream.java:45)
at org.jinq.jpa.QueryJPAJinqStream.where(QueryJPAJinqStream.java:87)
at org.jinq.jpa.QueryJPAJinqStream.where(QueryJPAJinqStream.java:1)
at SampleMain.runSampleQueries(SampleMain.java:75)
at SampleMain.main(SampleMain.java:51)
Caused by: org.jinq.rebased.org.objectweb.asm.tree.analysis.AnalyzerException: Unknown static method com/google/common/base/Objects:equal(Ljava/lang/Object;Ljava/lang/Object;)Z encountered
at ch.epfl.labos.iu.orm.queryll2.symbolic.BasicSymbolicInterpreter.naryOperation(BasicSymbolicInterpreter.java:385)
at org.jinq.rebased.org.objectweb.asm.tree.analysis.Frame.execute(Unknown Source)
at ch.epfl.labos.iu.orm.queryll2.path.CodePath.calculateReturnValueAndConditions(CodePath.java:148)
at ch.epfl.labos.iu.orm.queryll2.path.TransformationClassAnalyzer.analyzeMethod(TransformationClassAnalyzer.java:440)
at ch.epfl.labos.iu.orm.queryll2.path.TransformationClassAnalyzer.analyzeLambdaMethod(TransformationClassAnalyzer.java:406)
at org.jinq.jpa.transform.LambdaAnalysis.analyzeLambda(LambdaAnalysis.java:318)
at org.jinq.jpa.transform.LambdaAnalysis.fullyAnalyzeLambda(LambdaAnalysis.java:187)
... 9 more

from jinq.

I don't think this is going to work. I don't have the time to learn extend, so I can't do proper testing for it, so there's going to be too many errors like this.

I've tried 1.8.6, and I don't encounter any problems with Guava's Objects.equal() method, so it must be something specific with extend, or perhaps extend isn't picking up the correct version of jinq-jpa from Maven Central or something like that.

Sorry. I don't think I'll be able to add support for extend after all.

from jinq.