ObjectDB ObjectDB

Internal Website Search

161-170 of 200 resultsRefresh
8

New to Product & Having An Issue

have a domain object class Called Department, which has a member of type DomainId. DomainId has two member fields: String accountId and String objectId. The following code shows these two classes
8

Problem witch CriteriaBuilder isMember(..)

you for your report. Please try build 2.6.4_08 which fixes an issue of using MEMBER with embedded ... has different members, but the same size. List<Testclass> uid1_list = .. new Testclass(1,1), new Testclass
8

Searching lists within objects

<Attribute> attributeList = new ArrayList<Attribute>(); } @Entity @Unique(members={"type","value ... (more efficient). An alternative solution is to use embedded objects: @Entity @Index(members
8

100% CPU when using multiple BETWEEN

Hi, we are evaluating ObjectDB 2.5.1_03 in embedded mode. We have a DB of about 2800 instances of a class that has two java.lang.String members: toExtension and fromExtension. There are other members in the class, but not relevant to the problem. A query like this causes the java process to start
8

Failing to read entities under load in multithreaded tests

() {         return version;     } } @Entity @Indices({ @Index(members={"oidId", "type"}), @Index(members={"parentAcl"}) }) public class TestEntity extends TestIdHolder {     private static
8

Exception after update of indices of Entity class

: @Indices ({     @Index (members = {"recurrence.recurringEvent"}),     @Index (members = {"relations
8

Failed to write the value of field using reflection (error 363) on LAZY fetch

Hi There I am using ObjectDB 2.6.3. I get the following Exception when I try to read my entities with a query where I have set to use LAZY initalization. It fails when it tries to set a 1:n member (e ... hints? The Mapping of class Modell and its member: @Entity class Modell { ... @OneToMany(fetch
8

Internationalization

be necessary, instead we could use maps for the international members and provide a map entry for each ... -language members where for example the long description would be even stored as a rather long HTML code
8

can removing an entity throw an exception if the entity is in use?

WHERE a = b.a OR a MEMBER OF b.list ... The query will have to be adjusted to your specific model ... b FROM B b WHERE :a = b.a OR :a MEMBER OF b.list ... support Support
1

NullPointerException: Cannot invoke "com.objectdb.o.RFV.S()" because "<local9>" is null

Using @Index for fields and combine this with sorting the query throws an NullPointerException. This code reproduces the error: public class NullTest {     @Entity     @Indices({         @Index(members = {"children.name"}),         @Index(members = {"children.age"})     })     static

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.

Need Help?

  1. Search ObjectDB website
  2. Read the FAQ
  3. Follow the Tutorials
  4. View or post in the forum
  5. Search or file an issue
  6. Contact support