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1

JDO manual

Request for a new JDO manual, covering ODB 2. Please subscribe to the ObjectDB 2 JDO Manual issue. Because writing a new manual and then maintaining two similar manuals, one for JPA and the other for JDO requires massive work, this will be done only if there is a sufficient demand.
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JPA query of a Set of terms

Hi, Is it possible to write a JPA query to select objects that contain a collection of elements? For example, suppose I have a table that maps a search terms to pages: @Entity public class SearchIndex { @Index SearchTerm term; @Index Page page; } Now suppose I have an array
Issue
1

Large query parameter - out of memory

I have an entity object composed of an id, large data in the form of a string and the hashcode of the string as an index. The attached test saves 2000 of these objects, writing the data to a txt file as it goes. It then loops through the data from the file and queries for the entity id based
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1

Left join fetch behaviour doesn't retrieve children?

();   if (!em.getTransaction().isActive()) {    em.getTransaction().begin();   }   // Write 100 000
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locks on pure query activities

="false" path="." max="128mb" />
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1

Managing software release cycles.

some cases you may have to write code. You can use the PostLoad event to adjust old objects to new format when they are loaded. luca.camerini
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1

Mapped By Fetch is very Slow

.getTransaction().begin();   }   // Write 100 000 entities with 1 child for each   for (int i=0;i<100000
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1

migration path from JPA / Hibernate

. About the data, currently you will have to migrate it by yourself. This can be done by writing a small JPA
Forum
1

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

a lot of time to prepare the app and write the instructions, for testing to be easy. The only things
Issue
1

Navigation through lazy loading from Detached Objects

and when needed. We do not want to write 1000s of dedicated projection queries  and/or fetch joins