About time

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2

persisting object with long[][] arrays of array

= FetchType.EAGER, cascade = CascadeType.ALL) public long[] time;     @OneToMany(fetch = FetchType.EAGER ... long[][] b2;     public TESTObject(String ids, long[] time, long[][] a1, long[][] a2, long[][] b1, long[][] b2) {         this.id = ids;         this.time = time;         this.a1 = a1
JDO Doc
2

removeInstanceLifecycleListener(listener)

is configurable (before the first time getPersistenceManager is called). Parameters: listener - the listener instance to be removed Since: JDO 2.0
JDO Doc
2

setIgnoreCache(ignoreCache)

transactions, this can dramatically improve query response times. Parameters: ignoreCache - the setting of the ignoreCache option. Since: JDO 1.0
JDO Doc
2

setOptimistic(optimistic)

Method javax.jdo.Transaction void setOptimistic(   boolean optimistic ) Optimistic transactions do not hold data store locks until commit time. If an implementation does not support this option, a JDOUnsupportedOptionException is thrown. Parameters: optimistic - the value of the Optimistic flag. Since: JDO 1.0
JDO Doc
2

setResultClass(cls)

class Date; or one of the java.sql classes Date, Time, or Timestamp; or a user-defined class
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2

java 8 LocalDateTime is not working in query

My entity class has a field of type java.time.LocalDateTime. I'm able to persist entities and I'm ... : SELECT t FROM Test t New Java 8 date/time types are not supported by JPA yet. I don't want ... ), which shows how you can use Java 8 date/time using @Convert, we may be able to add this support
Issue
2

Query fails with failed to read

2-3 times per day we have a query that fails with:   Failed to read from file 'F:\Hummingbird ... backup when the exception is thrown? Any other special activity at that time? Please post a full stack ... ).   we have it now 5-10 times per day. There is not any backup activity active during these times
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1

Modifying something with Explorer -> app JPQL with Enum doesn't work anymore

. In this case rerunning the project many times doesn't help at all. Problem: the number of entities ... or a standalone class. Part-time solution: run the project twice after the modification ... , because sometimes it doesn't work, but you don't know. It's the second time when I encounter this bug in 2
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1

Occasionally slow requests in load testing

response times from the DB, around 10 - 15 seconds. Looking at the DB server process with AppDynamics ... requires scanning of the entire database and the database file is large - execution time ... response times occur in wide variety of different queries. I have however traced it to database file
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1

Wrong data stored in date only fileds

Hi, we have an object with the following fields:   private Date startDateTime; // Time stamp: start of recording in local time zone private Date startDate; // Date: date part of startDateTime private Date startTime; // Time: time part of startDateTime @Basic