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18

"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
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18

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
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18

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
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18

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
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17

@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
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17

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
Forum
17

best practice for configuration settings

to our core process, each accessing objectdb. What is the best setting ? synchronized there is no documentation about this setting, what does it do/mean ? With 16 processor cores the optimum ... testing and comparing different settings under the real conditions. If synchronized is true
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17

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
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17

Objectdb Server Mode set up with glassfish

Hi I'm new to Java, glassfish and objectdb, so please forgive my ignorance. I have a glassfish server working with the embeded mode of objectdb. I now want to set up objectdb in server mode. I ... my project ? How do I configure my persitence.xml file ? Do I need to set up something in Glassfish
Forum
17

client server set up and load

of users and more by the actual activity, how indexes are set, etc. kaybel