About Data Set

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Forum
5

"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
5

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
5

@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
5

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
5

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
Manual
5

JPA Primary Key

64 bit number (long) that is set automatically by ObjectDB for every new entity object that is stored ... key field: @Entity public class Project { @Id @GeneratedValue long id; // still set ... value generation is discussed in detail in the Generated Values section. Application Set Primary Key
Forum
5

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
5

client server set up and load

of users and more by the actual activity, how indexes are set, etc. kaybel
Forum
5

Global way to set Lazy-loading fetch functionality for all the fields

/ Eager can only be set locally per relationship, and for some extent also per query (using JOIN FETCH). ouba64
Forum
5

Is there a way to set EAGER fetch on all "ToMany" collection relationships

Given that the default seems to be FetchType.LAZY for all collections @OneToMany and @ManyToMany. Such as a configuration option. Instead of having to explicitly set fetch in annotation code in every relationship. No. There is no such configuration option, since having EAGER as the fetch type