ObjectDB ObjectDB

Internal Website Search

91-100 of 114 resultsRefresh

Speeding up reporting queries with size() on list

Hi, I'm working on some reporting stuff in our application. One of few different reports should include activity on last modified objects. The query for now looks like this: select date(insp.lastModificationDate), insp.modifiedBy, insp.description.length(), insp.products.size(), insp.picture

Cascading makeTransient

toString() {   return "StringWrapper : "+ getString().length(); } public ArrayList<String

Executing JUnit "all tests" throws "Object ... belongs to another EntityManager" Exception

.locks.ReentrantReadWriteLock locks, and varying the length (number of actions) within a transaction

Multithreading Test and Deadlock

threads are slower because of higher memory usage (4 x 10,000 x 100 strings x attribute length => many

Broken @ManyToOne reference

Hi, I have objects of type A belonging to objects of type B, defined as follows: @MappedSuperclass public abstract class A { @Id @ManyToOne(fetch = FetchType.EAGER, cascade=CascadeType.ALL, optional=false) private B b; @Id @Column(length = 36) private String stringId

Does aggregate function "greatest" work on entity objects?

; } @Column(length=1024) private String text; @Embedded private PersonData

How to enhance the JPA/Spring/MVC to implement RESTfull for CURL client?

Server: Apache-Coyote/1.1 Content-Type: text/html;charset=utf-8 Content-Length: 1067 Date: Sat, 12

UPDATE statemen crash when i put the WHERE clause.

.get(1).matches("[a-zA-Z- ]+") && linie.get(2).length()>=2) { lab_points = (Integer) em

[ObjectDB 2.2.6_02] Unexpected exception (Error 990) at com.objectdb.o.OBC.aJ(OBC.java:961)

) { String msg = ex.getLocalizedMessage(); if (msg == null || msg.length() == 0

ObjectDB 2.6.1

Added an option to disable temporary file deletion. Added support of using entity classes with missing dependent types. Added support of composite indexes with components of different lengths. Fixed a bug in reflection mode in detecting changes after flush (issue #1602). Fixed

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