Home » Search

About Object Database

91-100 of 200Refresh
Tutorial
10

Step 3: Add a Context Listener Class

The Guest entity objects will be stored in an ObjectDB database, which will be represented by ... a ServletContextListener to perform initialization and cleanup operations: The database will be opened (or created ... . The database will be closed when the web application stops (or when the web server shuts down), by
Tutorial
10

Step 3: Add a Context Listener Class

The Guest entity objects will be stored in an ObjectDB database, which will be represented by ... a ServletContextListener to perform initialization and cleanup operations: The database will be opened (or created ... . The database will be closed when the web application stops (or when the web server shuts down), by
Forum
10

500Mb ObjectDb database opening issue

Hi, I have observed that 500 Mb objectDb database opening time is very slow (~3 seconds ... any way to speed-up open time for big databases? Definitely, it's too long for 500 Mb database! We gonna work with ObjectDb databases which may have size more than 5Gb and opening database time
Issue
10

Database access error , Doctor hanging on trying to repair, production shutdown at our biggest customer

, which is part of one large ObjectProperty object of 2699 bytes that was divided to two database ... we have a database shutdown, logs are showing: [2017-07-10 21:07:23 #1 store] Database 'F ... : SectionClassifier{2->merger[2699]-missing:1}     on running Doctor it hangs after reading in the database, just
Forum
10

em.flush(); em.clear(); loosing data and not persisting managed objects

objects to database. Sometimes it does other times it doesn't. Here is my Entity. import javax ... .objectdb.com/database/issue/new com.objectdb.o.InternalException: null com.objectdb.o ... tracking management system called CMVC, since I don't have direct access to that database
Forum
10

OutofMemory error with Object DB 2.0

after persisting 200 records and then the same transaction object from the same PersistentManager ... .commit(EMImpl.java:279) at com.anritsu.eu.database.DatabaseImplementation.storeItem(Unknown Source) at com.anritsu.eu.database.DatabaseMessageStorer.newItemParsed(Unknown Source) at com.anritsu.eu
Forum
10

Speed of queries that return many objects

a standard database (or object database) activity. The main idea of a database is that large amount of data ... if this is something I should investigate. So I created a database with 1_000_000 dummy entities (example ... and tuning it could be in the range of 1-2 seconds. The overhead of preparing entity objects
Issue
10

new objects not available in mappedBy associations

when the object is retrieved from the database again. Try to refresh the department object ... already contains a value - it will not be run again unless the object is retrieved again from the database ... > employees;   creating a new mapped class, e.g. new Employee, won't result in this object being available in
Forum
9

Queries are slow on a large database

out: how to get the total number of object in a database without retrieving everything? Alternatively ... Hi, I have a 12GB database with 787603 entries. It is much larger than usual ... have to scan the entire database file and is not using indexes. Therefore I think I am not doing
Issue
9

InternalException - error reading field from "queue" database

guess the problem is actually on writting the objects to the db. Running the database ... that is missing in this database. What do you store in that field? entity objects? embeddable objects? serializable objects? Did you use that specific database in replication? Maybe this is related