About lock

41-50 of 180Refresh
JPA Doc
12

javax.persistence.Query

lock mode for the query. Get the current lock mode for the query. Returns: lock mode Throws ... - if a lock mode has been set and there is no transaction PessimisticLockException - if pessimistic locking fails and the transaction is rolled back LockTimeoutException - if pessimistic locking
JPA Doc
11

refresh(entity, lockMode, properties)

changes made to the entity, if any, and lock it with respect to given lock mode type and with specified properties. If the lock mode type is pessimistic and the entity instance is found but cannot be locked: the PessimisticLockException will be thrown if the database locking failure causes transaction
FAQ
11

What is ObjectDB?

ObjectDB is an Object Oriented Database Management System (ODBMS). It provides all the standard database management services (storage and retrieval, transactions, lock management, query processing, etc.), but it uses an object oriented model to store and manage data. You can easily store ordinary
Result
11

What is new in ObjectDB 2.0?

optimistic locking support. Performance improvement in writing and reading of objects. Level 2
Manual
11

Detached Entity Objects

Detached entity objects are objects in a special state in which they are not managed by any EntityManager but still represent objects in the database. Compared to managed entity objects, detached objects are limited in functionality: Many JPA methods do not accept detached objects (e.g. lock
Result
11

About ObjectDB Database

ObjectDB Object Database ObjectDB is a powerful Object-Oriented Database Management System (ODBMS). It is compact, reliable, easy to use and extremely fast. ObjectDB provides all the standard database management services (storage and retrieval, transactions, lock management, query processing
Result
11

ObjectDB - Object Database for Java (JPA/JDO) [2017-10-19]

lock in - switching between implementations is easy. Technology flexibility - same API
Result
11

About ObjectDB Database [2017-10-24]

ObjectDB Object Database ObjectDB is a powerful Object-Oriented Database Management System (ODBMS). It is compact, reliable, easy to use and extremely fast. ObjectDB provides all the standard database management services (storage and retrieval, transactions, lock management, query processing
Manual
11

Database Doctor

engine (not using one server process), thus bypassing ObjectDB internal file lock protection. Modifying
Manual
11

Chapter 3 - Using JPA [2011-04-24]

This chapter explains how to manage ObjectDB databases using the Java Persistence API (JPA). The first two pages introduce basic JPA interfaces and concepts: The next section explains how to use JPA for database CRUD operations: More advanced topics (e.g. locking and events) are discussed in the last section: