4 | setLockMode(lockMode) query language SELECT query or a Criteria API query Since: JPA 2.0 |
4 | get(attributeName)Method javax.persistence.criteria.Path Path<Y> get( String attributeName ) Create a path corresponding to the referenced attribute. Note: Applications using the string-based API may need to specify the type resulting from the get operation in order to avoid the use of Path variables |
4 | select(selection)Method javax.persistence.criteria.CriteriaQuery CriteriaQuery<T> select( Selection<?> selection ) Specify the item that is to be returned in the query result. Replaces the previously specified selection(s), if any. Note: Applications using the string-based API may need to specify the type |
4 | getLockMode()Method javax.persistence.Query LockModeType getLockMode() Get the current lock mode for the query. Returns: lock mode Throws: IllegalStateException - if the query is found not to be a Java Persistence query language SELECT query or a Criteria API query Since: JPA 2.0 |
4 | Is ObjectDB better than Object Relational Mapping (ORM)? for an existing old relational database). By using the Java Persistence API (JPA), you can develop |
4 | ObjectDB 2.8 Developer's GuideWelcome to ObjectDB for Java/JPA Developer's Guide. Here you can learn how to develop database applications using ObjectDB and JPA (Java Persistence API). The main purpose of this guide is to make you productive with ObjectDB and JPA in a short time. Guide Structure This manual is divided into |
4 | CompanyObjectDB Software develops, markets and supports the ObjectDB Object-Oriented Database Management System (ODBMS). ObjectDB Software is the market leader in providing a very high performance persistence solution for Java, based on the Java Persistence API (JPA) and the Java Data Objects (JDO |
4 | Retrieving JPA Entity ObjectsThe Java Persistence API (JPA) provides various ways to retrieve objects from the database. The retrieval of objects does not require an active transaction because it does not change the content of the database. The persistence context serves as a cache of retrieved entity objects. If a requested |
4 | Database Connection using JPAWorking with the Java Persistence API (JPA) consists of using the following interfaces: Overview A connection to a database is represented by an EntityManager instance, which also provides functionality for performing operations on a database. Many applications require multiple database connections |
4 | Chapter 3 - Using JPAThis 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: |
