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[minborg]

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[sasajovancic]

Hi,

I am Sasa Jovancic, one of my colleagues point me to your project.

Your project is very interesting and i love how you design api.

I work on prj that already uses hibernate 5.2 stream functionality with spring data jpa specification,
but we look for option to improve and simplify this.
We do need to stream results of a complex query with a lot of joins and avoid N + 1 query issue.

Project is spring MVC rest, spring data jpa, oracle,
mix of old xml spring configurations and spring annotaions.

I am sorry if this is not the right place for this type of question.

I just read quick start and added dependency
try to compile and i got this error. Can turn of generation of $ classes?

Caused by: java.lang.StringIndexOutOfBoundsException: String index out of range: -1
at java.lang.String.substring(String.java:1967)
at com.speedment.jpastreamer.fieldgenerator.internal.typeparser.TypeParser.parseNode(TypeParser.java:56)
at com.speedment.jpastreamer.fieldgenerator.internal.typeparser.TypeParser.render(TypeParser.java:36)
at com.speedment.jpastreamer.fieldgenerator.internal.InternalFieldGeneratorProcessor.fieldType(InternalFieldGeneratorProcessor.java:321)
at com.speedment.jpastreamer.fieldgenerator.internal.InternalFieldGeneratorProcessor.referenceType(InternalFieldGeneratorProcessor.java:281)
at com.speedment.jpastreamer.fieldgenerator.internal.InternalFieldGeneratorProcessor.addFieldToClass(InternalFieldGeneratorProcessor.java:240)
at com.speedment.jpastreamer.fieldgenerator.internal.InternalFieldGeneratorProcessor.lambda$generatedEntity$10(InternalFieldGeneratorProcessor.java:223)
at java.util.HashMap.forEach(HashMap.java:1289)
at com.speedment.jpastreamer.fieldgenerator.internal.InternalFieldGeneratorProcessor.generatedEntity(InternalFieldGeneratorProcessor.java:222)
at com.speedment.jpastreamer.fieldgenerator.internal.InternalFieldGeneratorProcessor.generateFields(InternalFieldGeneratorProcessor.java:165)
at com.speedment.jpastreamer.fieldgenerator.internal.InternalFieldGeneratorProcessor.lambda$process$1(InternalFieldGeneratorProcessor.java:103)
at java.util.stream.ForEachOps$ForEachOp$OfRef.accept(ForEachOps.java:184)
at java.util.stream.ReferencePipeline$2$1.accept(ReferencePipeline.java:175)
at java.util.Iterator.forEachRemaining(Iterator.java:116)
at java.util.Spliterators$IteratorSpliterator.forEachRemaining(Spliterators.java:1801)
at java.util.stream.AbstractPipeline.copyInto(AbstractPipeline.java:481)
at java.util.stream.AbstractPipeline.wrapAndCopyInto(AbstractPipeline.java:471)
at java.util.stream.ForEachOps$ForEachOp.evaluateSequential(ForEachOps.java:151)
at java.util.stream.ForEachOps$ForEachOp$OfRef.evaluateSequential(ForEachOps.java:174)
at java.util.stream.AbstractPipeline.evaluate(AbstractPipeline.java:234)
at java.util.stream.ReferencePipeline.forEach(ReferencePipeline.java:418)
at com.speedment.jpastreamer.fieldgenerator.internal.InternalFieldGeneratorProcessor.process(InternalFieldGeneratorProcessor.java:98)
at com.speedment.jpastreamer.fieldgenerator.StandardFieldGeneratorProcessor.process(StandardFieldGeneratorProcessor.java:45)
at com.sun.tools.javac.processing.JavacProcessingEnvironment.callProcessor(JavacProcessingEnvironment.java:794)
at com.sun.tools.javac.processing.JavacProcessingEnvironment.discoverAndRunProcs(JavacProcessingEnvironment.java:705)
at com.sun.tools.javac.processing.JavacProcessingEnvironment.access$1800(JavacProcessingEnvironment.java:91)
at com.sun.tools.javac.processing.JavacProcessingEnvironment$Round.run(JavacProcessingEnvironment.java:1035)
at com.sun.tools.javac.processing.JavacProcessingEnvironment.doProcessing(JavacProcessingEnvironment.java:1176)
at com.sun.tools.javac.main.JavaCompiler.processAnnotations(JavaCompiler.java:1170)
at com.sun.tools.javac.main.JavaCompiler.compile(JavaCompiler.java:856)
at com.sun.tools.javac.main.Main.compile(Main.java:523)
... 28 more

[frascu]

Hi @sasajovancic,
I had the same error in my code and I solved the issue creating this pull request #160.
You can follow the pull request if the case is the same.

[minborg]

Hi @sasajovancic and thanks for your kind support and for identifying and sharing your problem. It looks like the annotation processor fails for some reason. Are you able to share the JPA entities you are using so we could reproduce the problem?

You need the $ classes, or else it will be hard to express filters, sorting etc.