About bulk update

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Issue
1

NullPointerException when using multithreading

embedded mode instead of client server mode. Persisting bulk of objects every transaction (instead
Forum
1

Server closes if large query runs out of memory

into smaller number of objects.  I understand that JPA bulk delete doesn't involve any object
Forum
1

Entity listener - event instead of object

in updated entity. There is a problem however with accessing "old" version of object stored in ... value: {}, new value: {}, actor: {}, date: {}", new Object[] { OPERATION_TYPE_UPDATE, entityName ...                                 .toString() : null, OPERATION_TYPE_UPDATE, actorId, transTime
Forum
1

Optimization Question

to identify exactly what fields have changed from one update to the next. Currently the following sequence executes when a track update comes in: - If it’s a new track simply add it to the database. - If it's an update to an existing track, delete the entire previous entry and then add in the new
JPA Doc
1

createNativeQuery(sqlString)

Method javax.persistence.EntityManager Query createNativeQuery(   String sqlString ) Create an instance of Query for executing a native SQL statement, e.g., for update or delete. Parameters: sqlString - a native SQL query string Returns: the new query instance Since: JPA 1.0
JPA Doc
1

getResultList()

Method javax.persistence.Query List getResultList() Execute a SELECT query and return the query results as an untyped List. Returns: a list of the results Throws: IllegalStateException - if called for a Java Persistence query language UPDATE or DELETE statement QueryTimeoutException - if the query
JPA Doc
1

getResultList()

Method javax.persistence.TypedQuery List getResultList() Execute a SELECT query and return the query results as a typed List. Returns: a list of the results Throws: IllegalStateException - if called for a Java Persistence query language UPDATE or DELETE statement QueryTimeoutException
JPA Doc
1

getSingleResult()

query language UPDATE or DELETE statement QueryTimeoutException - if the query execution exceeds
JPA Doc
1

getSingleResult()

language UPDATE or DELETE statement QueryTimeoutException - if the query execution exceeds the query
JDO Doc
1

jdoPreStore()

Method javax.jdo.listener.StoreCallback void jdoPreStore() Called before the values are stored from this instance to the data store. Data store fields that might have been affected by modified non-persistent fields should be updated in this method. This method is modified by the enhancer