About getting started

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Consulting and Training

their knowledge. The course starts very quickly with the basics of JPA and creating a project
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Company [2018-10-27]

500 companies as well as smaller companies and start-ups, governments and defence forces
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Company

500 companies as well as smaller companies and start-ups, governments and defence forces
JPA Doc
2

javax.persistence.criteria.CriteriaBuilder

for string to be searched pattern - string to be located from - position at which to start search ... - expression for position at which to start search Returns: expression corresponding to position Since: JPA 2 ... a substring starting at the specified position through to end of the string. First position is 1
Forum
2

JPQL query to get entities that does not have a child entity in their child entities

Table ID    Status                Timestamp                JobId 01    Started               2105:12:10 14:00:00      001 02    Step_1_Started        2105:12:10 14:00:00      001 03    Step_1_Finished       2105:12:10 14:00:05      001 04    Step_2_Started        2105:12:10 14:00:05      001 05
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2

Soft Reference Object Cache Recommendation

be cached until the Java Virtual Machine (JVM) does a full Garbage Collection (GC) when heap RAM gets low ... when the JdoBlob2 gets deleted. I use JavaVirtualVm to look at my application heap to see the references ... the JdoBlob2 via persistenceManager.deletePersisted(jdoBlob2) then the memory gets freed by
Issue
2

Internal error

.eclipse.jetty.util.component.AbstractLifeCycle.start(AbstractLifeCycle.java:68) at org.eclipse.jetty.util.component.ContainerLifeCycle.start(ContainerLifeCycle.java:131) at org.eclipse.jetty.server.Server.start(Server.java:452) at org.eclipse.jetty.util.component.ContainerLifeCycle.doStart
Issue
2

Unexpected error when loading all entity instance

and start over After a while and a lot of queries we get the above exception. Thanks Markus Ritter ... already. But after adding new ChangeSet instances it gets corrupted all the time. So I repair, run ... that can demonstrate this corruption, i.e. starts with a valid database and then corrupts it? Hello, I did not
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2

JBOSS AS7 7.1.1 - Entity not persisted and createNamedQuery fire exception

thread 1-1) JBAS015876: Starting deployment of "Guestbook.war" 09:40:30,624 INFO  [org.jboss.as.jpa ... ) MSC00001: Failed to start service jboss.deployment.unit."Guestbook.war".INSTALL: org.jboss.msc.service ... .start(DeploymentUnitPhaseService.java:119) [jboss-as-server-7.1.1.Final.jar:7.1.1.Final] at org.jboss
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2

Occasionally slow requests in load testing

, however there are quite a few "spikes" in the performance where we are getting a lot of very slow ... " /> I've looked at it with AppDynamics again and could see that it gets stuck in 3 different ... also noticed a large IO write spike at the same time the issue has started (picture also attached