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I found the message: Error opening zip file or JAR manifest missing: /E ... read or write the DB. Exception in thread "main" [ObjectDB 2.2.5] javax ... opening zip file or JAR manifest missing: /E:/projects/ObjectDB/bin/objectdb.jar gzdillon Lai

is to be java (for desktop version) and python or php for the web version but i want to code queries in native ... to mariadb or mysql using native java JPA API and in some cases JPQL or must i store to an Objectdb ... database. You cannot use to write to MySQL or MariaDB (as you cannot use PostgreSQL to write to MySQL

operand: select a from Action a where (a.state = 2 or a.state = 3) and a.type = 0 and a.transferred = 0 if the query is changed to select a from Action a where (a.state = 3 or a.state = 2 ... >it seems that the or is not working at all the query plan is: Query plan 1/2 description

Whats going on here? Is the entityManager not controlled by the persistance.xml or is something in the spring is doing something I don't understand? Or have I missed something? or "hashcode" method use more than the database id for generation

ownerMatchesOrIsNull = cb.or(ownerIsNull, isOwnedByUser); The isNull predicate will only match records when NOT inside the OR predicate.  The other predicate works normally within or outside the OR. bhamilton Bruce Hamilton Your query is probably converted to something such as:

A where another is null OR another.counter = 0"  What I expected to get where the 2 entities I ... OR another.counter = 0 is a short form of the this equivalent query: SELECT a FROM A a JOIN a.another b WHERE a.another IS NULL OR b.counter = 0

or map types is not stable, we lost them sometimes after JVM restarted. Eager fetch is properly set ... that can cause this problem (including in using or not using generics) so this could also be a bug in ... that the collection or map are stored successfully by using explorer tools when the JVM stopped

_b8). Can you analyze the problem and tell us if its a problem of the explorer or a real problem ... > We observe the error if we try to open the Tree or Table Window for com.btc.ep.analysis.test.bl.internal ... in the the classpath (either in the Explorer or using your application) in order to update

from the database. If I had detailled traces of the EntityManager or of ObjectDB, I ... allocation strategy that will make IDs available on persist, or flush after persist to get IDs ... > If an update is not detected (e.g. due to 3 or 4) - you may try changing another (even dummy) field in

: Cannot invoke "com.objectdb.o.ORS.Z9()" because "<parameter1>" is null at com.objectdb.o ... :833) Caused by: java.lang.NullPointerException: Cannot invoke "com.objectdb.o.ORS.Z9()" because "< ... ) Caused by: java.io.FileNotFoundException: (No such file or directory) at java.base/java.io