update entity with null property @MappedCollection don't remove column in column family

[rjesususa]

Well, if I have been updated an entity with NULL value on @MappedCollection property in cassandra database, these column doesn't are removed. it causes the follow exception:

Caused by: java.lang.ClassNotFoundException: at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:169) at org.firebrandocm.dao.AbstractPersistenceFactory.loadMappedCollection(AbstractPersistenceFactory.java:967) at org.firebrandocm.dao.AbstractPersistenceFactory.loadProperty(AbstractPersistenceFactory.java:934) at org.firebrandocm.dao.impl.hector.HectorPersistenceFactory.loadLazyPropertyIfNecessary(HectorPersistenceFactory.java:537) at org.firebrandocm.dao.ClassMetadata$2.invoke(ClassMetadata.java:532) at br.com.mca.comissionamento.mcadominio.server.persistence.domain.TermoAberturaProjeto_$$javassist_23.getDocumentos(TermoAberturaProjeto$$_javassist_23.java)

When I try access the list property: tap.getDocumentos()

tap is this entity: public class TermoAberturaProjeto extends EntityBase { private static final long serialVersionUID = -8093038817100592845L;

@Key
private String key;

@MappedCollection
private List<DocumentoReferencia> documentos;

... }

[raulraja]

While the reported exception is cryptic and can be improved firebrand maps collections by composing a String containing the class name and target id and does not support at this time discovering removed relationships outside of firebrand. Can you provide a test case for this use case? I'll be happy to look into it once I understand more what the actual case and provide either better exception handling for missing collection items or a fix for it.

On Tue, Jul 30, 2013 at 11:48 PM, Raneves [email protected] wrote:

Well, if I have been updated an entity with NULL value on @MappedCollection property in cassandra database, these column doesn't are removed. it causes the follow exception:

Caused by: java.lang.ClassNotFoundException: at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:169) at org.firebrandocm.dao.AbstractPersistenceFactory.loadMappedCollection(AbstractPersistenceFactory.java:967) at org.firebrandocm.dao.AbstractPersistenceFactory.loadProperty(AbstractPersistenceFactory.java:934) at org.firebrandocm.dao.impl.hector.HectorPersistenceFactory.loadLazyPropertyIfNecessary(HectorPersistenceFactory.java:537) at org.firebrandocm.dao.ClassMetadata$2.invoke(ClassMetadata.java:532) at br.com.mca.comissionamento.mcadominio.server.persistence.domain.TermoAberturaProjeto_$$javassist_23.getDocumentos(TermoAberturaProjeto$$_javassist_23.java)

When I try access the list property: tap.getDocumentos()

tap is this entity: public class TermoAberturaProjeto extends EntityBase { private static final long serialVersionUID = -8093038817100592845L;

@Key private String key;

@MappedCollection private List<DocumentoReferencia> documentos;

... }

— Reply to this email directly or view it on GitHubhttps://github.com/47deg/firebrand/issues/27 .

Raúl Raja Martínez Co-founder @ 47 Degrees h: http://raulraja.com w: http://47deg.com t: http://twitter.com/raulraja

[rjesususa]

Raul, the updated is execute on firebrand method. look this example with TermoAberturaProjeto class:

//my dao retrieve the entity from DB. TermoAberturaProjeto tap = dao.get(TermoAberturaProjeto.class, id); tap.setDocumentos(null); // or a ArrayList size equals 0 dao.update(tap); // execute method persist of firebrand.

on it's case, the column reference of property documentos(List with @MappedCollection) don't is removed on cassandra and the value of the column is empty. => (column=documentos, value=, timestamp=1375220612449000)

so, i have exceptions when try execute the simple method get of my atribute.

like this:

TermoAberturaProjeto tap = dao.get(TermoAberturaProjeto.class, id); tap.getDocumentos(); // this throws exception when I try access the list property.

[raulraja]

I see, it is indeed a bug that an exception is thrown in this case. I will look into it and fix it as soon as I have some time. Thanks for reporting it! On Jul 31, 2013 12:29 AM, "Raneves" [email protected] wrote:

Raul, the updated is execute on firebrand method. look this example with TermoAberturaProjeto class:

//my dao retrieve the entity from DB. TermoAberturaProjeto tap = dao.get(TermoAberturaProjeto.class, id); tap.setDocumentos(null); // or a ArrayList size equals 0 dao.update(tap); // execute method persist of firebrand.

on it's case, the column reference of property documentos(List with @MappedCollection) don't is removed on cassandra and the value of the column is empty. => (column=documentos, value=, timestamp=1375220612449000)

so, i have exceptions when try execute the simple method get of my atribute.

like this:

TermoAberturaProjeto tap = dao.get(TermoAberturaProjeto.class, id); tap.getDocumentos(); // this throws exception when I try access the list property.

— Reply to this email directly or view it on GitHubhttps://github.com/47deg/firebrand/issues/27#issuecomment-21827889 .

[fzoro]

Hello Raul, are you ok?

You'll fix this issue?

[rjesususa]

?

[raulraja]

@fabiozoroastro @Raneves I have been very busy lately and not had much time to dedicate to this issue. If you need an immediate fix I'll be happy to review any PR's. Thx