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Forum
11

Iterating over large result set

of result set from database without building whole object graph representing fetched data in application ... Hi, Few days ago I was writing some code to iterate over quite a large dataset. Fitting those data ... with fetched data     }     em.clear(); } I'll be using this with data streaming with REST and Jersey
Forum
10

Fetch Set from DB only works on debug mode

that hash set, it returns a null pointer. BUT, when I run the program in debug mode, it works fine ... ticket. This is not a bug. Lazily loaded data that has not been loaded before the EntityManager is closed is not available after closing the EntityManager. In debug mode, by examining the set you load
Forum
10

NullPointerException while setting a new property value

to entities from 2 threads: 1. Creating a list of entities, default values are set from imported file 2 ... (); } } 3. The code continues with a revalidation and re-setting some properties to entities from the collection. NPE is thrown at some point while database thread is writing new data. I guess
Forum
10

Set timeout for BatchQueryItr

) You can set a query execution timeout as a query hint. The many BatchQueryItr files may indicate a complex query on a lot of data with no sufficient indexes. If there is a deadlock, please post a full thread dump (which should also show the deadlock). xirt
Manual
9

Database Transaction Replayer

. If the purpose of the recording is data durability it might be useful to keep the recording directory on a different physical device by setting the path attribute in the configuration. The recording directory
JPA Doc
8

javax.persistence.spi.PersistenceUnitInfo

the root of the persistence unit that have not been explicitly listed are to be included in the set ... been explicitly listed are to be included in the set of managed classes. This value corresponds to the exclude ... of the persistence unit that have not been explicitly listed are to be included in the set of managed classes
Forum
8

Refresh data in application after database data has changed

Refresh data in application after database data has changed
JDO Doc
8

javax.jdo.spi.PersistenceCapable

has been enhanced to call the jdoStateManager on read if the jdoFlags setting is not READ_OK or READ_WRITE_OK ... to call the jdoStateManager on read if the jdoFlags setting is not READ_OK or READ_WRITE_OK. Since: JDO 1.0 byte ... to call the jdoStateManager on write if the jdoFlags setting is not READ_WRITE_OK;. If jdoFieldFlags
Forum
7

BeanCreationException in spring data JPA with objectDB

.GenericTypeResolver.getTypeVariableMap(Ljava/lang/Class;)Ljava/util/Map; from class org.springframework.data.util ... class org.springframework.data.util.ClassTypeInformation at org.springframework.beans.factory.support ... org.springframework.data.util.ClassTypeInformation at org.springframework.data.util
Manual
7

Query Parameters in JPA [2011-04-01]

for a real value. Before the query can be executed a parameter value has to be set using the setParameter ... more occurrences in the query string. A query can be run only after setting values ... excels in its thin and simple API. There are 9 methods for setting parameters in a query