Can't deserialize Class fields [DATACOUCH-35] about spring-data-couchbase HOT 8 CLOSED

David Harrigan commented

Hi,

Would you have an example of the JSON document containing the class field and data?

-=david=-

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Michael Nitschinger commented

How do you store the value? If I try to store a Class type as a property, I can even get it to store, Jackson complains immediately:

java.lang.IllegalStateException: No ObjectCodec defined for the generator, can only serialize simple wrapper types (type passed java.lang.Class)
at com.fasterxml.jackson.core.base.GeneratorBase._writeSimpleObject(GeneratorBase.java:515)
at com.fasterxml.jackson.core.base.GeneratorBase.writeObject(GeneratorBase.java:262)
at org.springframework.data.couchbase.core.convert.translation.JacksonTranslationService.encodeRecursive(JacksonTranslationService.java:92)
at org.springframework.data.couchbase.core.convert.translation.JacksonTranslationService.encode(JacksonTranslationService.java:62)
at org.springframework.data.couchbase.core.CouchbaseTemplate.translateEncode(CouchbaseTemplate.java:79)
at org.springframework.data.couchbase.core.CouchbaseTemplate.access$000(CouchbaseTemplate.java:40)
at org.springframework.data.couchbase.core.CouchbaseTemplate$2.doInBucket(CouchbaseTemplate.java:116)
at org.springframework.data.couchbase.core.CouchbaseTemplate$2.doInBucket(CouchbaseTemplate.java:113)
at org.springframework.data.couchbase.core.CouchbaseTemplate.execute(CouchbaseTemplate.java:236)
at org.springframework.data.couchbase.core.CouchbaseTemplate.save(CouchbaseTemplate.java:113)
at org.springframework.data.couchbase.core.CouchbaseTemplateTests.shouldSaveClassProperty(CouchbaseTemplateTests.java:215)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:47)
at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:12)
at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:44)
at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:17)
at org.springframework.test.context.junit4.statements.RunBeforeTestMethodCallbacks.evaluate(RunBeforeTestMethodCallbacks.java:74)
at org.springframework.test.context.junit4.statements.RunAfterTestMethodCallbacks.evaluate(RunAfterTestMethodCallbacks.java:83)
at org.springframework.test.context.junit4.statements.SpringRepeat.evaluate(SpringRepeat.java:72)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.runChild(SpringJUnit4ClassRunner.java:231)
at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:50)
at org.junit.runners.ParentRunner$3.run(ParentRunner.java:238)
at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:63)
at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:236)
at org.junit.runners.ParentRunner.access$000(ParentRunner.java:53)
at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:229)
at org.springframework.test.context.junit4.statements.RunBeforeTestClassCallbacks.evaluate(RunBeforeTestClassCallbacks.java:61)
at org.springframework.test.context.junit4.statements.RunAfterTestClassCallbacks.evaluate(RunAfterTestClassCallbacks.java:71)
at org.junit.runners.ParentRunner.run(ParentRunner.java:309)
at org.springframework.test.context.junit4.SpringJUnit4ClassRunner.run(SpringJUnit4ClassRunner.java:174)
at org.junit.runner.JUnitCore.run(JUnitCore.java:160)
at com.intellij.junit4.JUnit4IdeaTestRunner.startRunnerWithArgs(JUnit4IdeaTestRunner.java:77)
at com.intellij.rt.execution.junit.JUnitStarter.prepareStreamsAndStart(JUnitStarter.java:195)
at com.intellij.rt.execution.junit.JUnitStarter.main(JUnitStarter.java:63)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
at com.intellij.rt.execution.application.AppMain.main(AppMain.java:120)

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Michael Nitschinger commented

What about just storing it as a string?

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Pavel Bernshtam commented

I had a map from Class to some object. It was stored successfully.

Yes, I save it as String now as workaround

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Michael Nitschinger commented

Let's get this fixed for M3, the ENUMs should already be in M2.

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David Harrigan commented

Hi,

Pull Request #19 created.

-=david=-

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David Harrigan commented

Updated PR created

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Michael Nitschinger commented

A proper fix has been merged into master, can you please verify there?

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