About drop

forum_thread

Degrading performance overtime

hi, We have an application that uses embedded odb database. We have configured odb to start at 50meg chunks and grow at 50 megs a time. as the files become larger between 1 and 2 gigs we start to see considerable degrade in performance caused internal objectdb locking: ... programs = "500" /> <extensions drop = "temp,tmp,odb" /> </database >   ...

 
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Eclipse plugin problem (using ObjectDB as a separate bundle)

Hello support, I have seen multiple attempts to correct similar errors as in the title above - the latest in the 2.2.8.01 release of objectDb. However I still get this error.   Here is my scenario (Groovy 1.8 and Eclipse 3.6) used. I have a com.epimss.lab.data.toxicology.TherapeauticDrugScreenRqst. Nested in this class are the following two classes: com.epimss.lab.data.misc.OtherRqst and com.epimss.lab.data.misc.RequestDateAndNumber. ... if the first URL (NOT an update site) does not work simply drop the attached com.richclientgui.rcptoolbox_1.0.9.jar plugin in the eclipse ...

 
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Problems down-casting in WHERE clause

I have a family of related types, like this: @Entity class Base { String val1; String val2; }; @Entity class Derived1 extends Base { String val3; }; @Entity class Derived2 extends Base { String val4; };  I'm trying to implement a query which will return all Base objects which have a given string within any of their String-typed fields.  The query I'm using looks somewhat like this: ... createEntityManagerFactory ( "objectdb:test.tmp;drop" ) ;   EntityManager em = emf. ...

 
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Persisting collection where members are subclasses

OK, I have a number of classes which are all subclasses of Entry (e.g., Folder, Link, Book). In the Folder class, there is a @OneToMany Map<String, Entry> children If I store something in that map which is an Entry, then I can persist just fine. But if I try to put any of the subclasses into the map, then I get  ... ( "objectdb:db/test.tmp;drop" ) ; EntityManager em = emf. ...

 
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java 8 LocalDateTime is not working in query

My entity class has a field of type java.time.LocalDateTime. I'm able to persist entities and I'm able to query without datetime field in where clause, but with datetime in where clause doesn't return anything and not exception.   ... "objectdb:$objectdb/db/test.tmp;drop" ) ; EntityManager em = emf. ...

 
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TYPE Expression

Hi there! Trying to add a simple type expression with the criteria api like in your sample: cb.notEqual(e.type(), cb.literal(Country.class)); results in the error: Caused by: com.objectdb.o.UserException: Attempt to store an instance of a non persistable type java.lang.Class at com.objectdb.o.MSG.d(MSG.java:61) at com.objectdb.o.TYW.writeElement(TYW.java:223) at com.objectdb.o.QRR.l(QRR.java:424) at com.objectdb.o.QRR.g(QRR.java:230) at com.objectdb.o.QRR.b(QRR.java:151) ... ( "objectdb:$objectdb/db/test.tmp;drop" ) ;   EntityManager em = emf. ...

 
forum_thread

Using Enum type in NamedQuery: Field is not found in type

I'm trying to switch an application that worked fine in Hibernate to ObjectDB and am having issues with queries that reference enum types. On my entity object is a static enum public static enum Type {     A,B,C } that is stored in an @Enumerated member variable private Type type; @Enumerated public Type getType() {     return type; } I then try to query this field in the following JPA Named Query ... "objectdb:$objectdb/db/test.tmp;drop" ) ; EntityManager em = emf. ...

 
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Multi part paths in a composite index must have the same length

Hi, I am trying to create some index in a DB - but I get an exception when i try to commit. Exception in thread "main" [ObjectDB 2.6.0_01] javax.persistence.PersistenceException Invalid index path 'tStamp.value / instrumentId' in type Entities.OrderBookNew (error 328) at com.objectdb.jpa.EMImpl.createQuery(EMImpl.java:958)   Here is how the class of the persisted object looks like ... ( "objectdb:$objectdb/db/test.tmp;drop" ) ; EntityManager em = emf. ...

 
issue

After using the enhancer, Lazy loaded collections are no longer loading. They are set as null

Environment: Mac OS X JVM: Java 1.8 u 20 Steps to reproduce Use the following classes: /** Account Class **/ ... ( "objectdb:db/test.tmp;drop" ) ; EntityManager em = emf. ...

 
issue

Threaded Test - Failed to commit transaction: Unexpected internal exception

Hi I'm trying to create a simple producer-consumer queue scenario but am getting the followin exception: ... 2mb) and when the consumers alone are running this should drop to a max of around 10mb (5 consumers * 2mb). I tried adding an "evictAll" ...