10 | Criteria Query Selection and ResultsThe JPA Criteria API interfaces in this group are used for setting the SELECT and ORDER BY clauses and for representing query results as tuples. SELECT Clause Elements The content of the SELECT clause in a criteria query is represented by Selection: Because Selection is a super interface |
10 | GROUP BY and HAVING clauses.currency HAVING COUNT(c) > 1 can be built using the criteria query API as follows: CriteriaQuery |
10 | 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 |
7 | javax.persistence.TypedQuery SELECT query or a Criteria API query Since: JPA 2.0 int getMaxResults() The maximum number of results ... a Criteria API query Since: JPA 2.0 TypedQuery<X> setLockMode( LockModeType lockMode) Set the lock mode ... - if the query is found not to be a Java Persistence query language SELECT query or a Criteria API |
6 | Query fails with failed to read:214) com.agile.hummingbird.API.handleGetContainer(API.java:3130) com.agile.hummingbird.API.directRequest(API.java:965) com.agile.hummingbird.API.handleWebSocketRequest(API.java:808) com.agile ... ) at com.objectdb.jpa.JpaQuery.getResultList(JpaQuery.java:721) at com.agile.hummingbird.API |
6 | javax.persistence.Query a Criteria API query Since: JPA 2.0 int getMaxResults() The maximum number of results the query ... Persistence query language SELECT query or a Criteria API query Since: JPA 2.0 Query setMaxResults(int ... (Class<T> cls) Return an object of the specified type to allow access to the provider-specific API |
5 | javax.persistence.EntityManager. The EntityManager API is used to create and remove persistent entity instances, to find entities by their primary ... to the provider-specific API. Return an object of the specified type to allow access to the provider-specific API. If the provider's EntityManager implementation does not support the specified class |
5 | Exception makes the system unusable for several minutes.hummingbird.API.executeEndAction(API.java:1874) at com.agile.hummingbird.API.handleAction(API.java:1614) at com.agile.hummingbird.API.directRequest(API.java:1089) at com.agile.hummingbird.API.handleWebSocketRequest(API.java:890) at com.agile.hummingbird.WebSocketServerListener |
5 | stress test -> com.objectdb.o.InternalException: nullI am running a stress test with 2 users, each making a request to the JSON API (which uses as storage ObjectDB) each 50 milliseconds. An API call might have between 1-4 db calls ... /fitbird/control/p2/WorkoutPlanC.java) at com.fitbird.boundary.api.util.PlanAccessVerifier.<init |
1 | JDO Reference (JavaDoc)This reference contains the API documentation (similar to JavaDoc) of JDO 2.2. The content is derived from the original JDO documentation with some additions and notes. The most basic JDO types are: All the other JDO types are organized into the following sections: |
