About settings

21-30 of 200Refresh
Forum
27

DB Doctor sets type to "unknown" for new fields

to the schema as expected, however their type is set to unknown - we were expecting Boolean. The attached ... ) is set to unknown. Both are defined as Boolean in Java code. As a result, update operations ... to false: UPDATE RecordingMetaData AS r SET r.emergency=false WHERE r.emergency IS NULL DB Explorer
Forum
27

Setting temp directory location in ObjectDB

file. I am using JDO and setting the persistenceManager as follow properties.setProperty("javax.jdo ... " /> But can you please let me know, if i dont want to use the conf file, how can i set the temp directory using my java class  e.g setting through system property or ..... I m using fileName.odb file
Forum
27

Can a Set<E> be a foreign key?

a variable (private Set cellHeldCharacters;) which holds the IDs of the characters within the cell ... /unrecommended to do it for a Set? For a better picture, I have: @Entity public class Character ... ;     private double cellSize;     private Set cellHeldCharacters; And I want to know if I
Forum
27

Understanding Database max-threads objectdb.conf Settings Option

to forum thread mentioned above), I set Database max-threads.  In the documentation, it was not completely clear to me if this setting controlled how many internal threads ObjectDB uses, or if ObjectDB is doing some sort of queue/locking whose depth is determined by this setting (and entries
Forum
27

"Failed to serialize instance" of Set problem

= FetchType.LAZY, mappedBy="parent") private Set abstractContainers = com.google.common.collect.Sets.newIdentityHashSet(); } Got the following exception: com.objectdb.o.UserException: Failed to serialize instance of com.google.common.collect.Sets$SetFromMap - field xxx
Forum
27

Iterating over large result set

of given size until whole result set is iterated.  What I'm thinking about is some kind of streaming of result set from database without building whole object graph representing fetched data in application ... with a hint "objectdb.result-fetch" set to "LAZY". Another option is to use a report query, i.e
Forum
27

JPA and handling large data sets

. But exporting large binary data sets is very slow. To avoid memory problems the binary data type is read step ... sets the way is slow. We have an own entity for storing binary data (pictures, documents). Hint ... the next set of objects. Usually the problem is only with setFirstResult and using setMaxResults
Forum
27

JPA query of a Set of terms

of SearchTerm objects. ie. Set terms;     // the set is filled with SearchTerm objects ... : Set terms; // the set is filled with SearchTerm objects
Forum
27

@ElementCollection Set<Integer> is emptied sometimes

already. ObjectDB seems to clear some fields that are @ElementCollection Set of my objects ... null. So, my @ElementCollection Set fields become empty sometimes during development ... it. Initially, I was not using @ElementCollection on my Set fields from User class. I've seen
Forum
27

Safe Settings

Hi, I am trying to set up ObjectDb in a safe way that allows turning the machine off while database ... with both configuration settings with the debugger and I put a breakpoint in FileDescriptor#sync(). It never got triggered with no setting that I could come up with. How come? Thanks in advance