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Persist error @ManyToMany how to define correct entities relationships

is created, the table is empty, however categories are well present within Product (as

JPA JPQL WHERE clause for IN :variable not working if variable is a list of Enums

.getResultSet() *always* returns an empty list. BUT if (for example) I try "WHERE (enumField = : enumField1

Unexpected exception during open the database

. Could you please try your conversion program with a new empty log file and then search for the exact

type.loader java.lang.ClassNotFoundException

- so please check if you still see these exceptions in lower logging level (e.g. info). The empty

possible index required for improving query performance

back and started a test with an empty database. It slowed down significantly after a few thousands records

Like fails if both underscore and percent are used

StringHolder("foobar"); assertEquals(0, getAll().size()); //DB is empty em.getTransaction

ODB lost?

closed by the existence of a special empty file (a file whose name is active in the odr directory

Problem using "and" for joined entities and indexed fields

Using @Index for fields and filter more than one field with "and" predicate ends in empty result list. public class IndexTest {     @Entity     @Indices({         @Index(members = {"children.name"}),         @Index(members = {"children.age"})     })     static class Parent

Index Rebuilder

When a new index is added to an existing entity classes that already has instances in the database, it cannot be used in queries, because it starts empty and unsynchronized with the existing primary data. The Index Rebuilder tool will enable rebuilding indexes, synchronizing their data

Table view freezes the program

database seems to be empty. support Support Here is another. Doesn't matter what data, it behaves the same

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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