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JPA Doc
10

javax.persistence.Query

- if the statement execution exceeds the query timeout value set and only the statement is rolled back PersistenceException - if the query execution exceeds the query timeout value set and the transaction is rolled ... ,Object> getHints() Get the properties and hints and associated values that are in effect
Manual
10

Chapter 6 - Configuration

directory. ObjectDB Home ($objectdb) The value of $objectdb (the ObjectDB home directory) is derived ... the value of $objectdb. For example, in a web application, in which objectdb.jar is located in WEB-INF ... " ... If a configuration file is not found default values are used. General Configuration Considerations
Manual
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SELECT clause (JPQL / Criteria API)

projection. The field values are extracted from (or projected out of) entity objects to form the query results. The results of the above query are received as a list of String values: TypedQuery results = query.getResultList(); Only singular value path expressions can be used in the SELECT
Forum
9

Failed to read the value of field using reflection

I have recently encountered an issue with reading objects: Exception: com.objectdb.o.UserException Message: Failed to read the value of field field Character.stats using reflection Stack Trace: com.objectdb.o.MSG.d(MSG.java:75) com.objectdb.o.UMR.P(UMR.java:934) com.objectdb.o.UMR.B(UMR
Forum
9

How to avoid NULL values on Embedded entities

Hi there. I'm new on this. trying to learn. I'm trying to make a value non nulleable. So, when I try to upload to the DB this field as null, it give me an error. I tried this, but it didn't work: public class Pedido {     @Id @GeneratedValue     private long id;         @Embedded private Direccion
Forum
9

KEY() / VALUE() not recognized in JPQL??

Hi! Explorer says "unexpected token" on KEY(..: SELECT FROM individual.IndividualContact $1 LEFT OUTER JOIN $1.profile.title.name m WHERE (KEY(m) = 'deu' AND VALUE(m) LIKE '%Dr%') profile = embedded entity title = referenced entity name = Map   thanks, Alex Yes
Issue
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Merge throw exception "Attempt to reuse an existing primary key value"

Hi, if Id = 0 I got javax.persistence.EntityExistsException: com.objectdb.o.UserException: Attempt to reuse an existing primary key value (ru.dz.train.test.ZeroIdTest$MyEntity:0)   if Id=1 no exception code : import javax.persistence.*; public class ZeroIdTest {     public static void main
Forum
9

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
Forum
9

remove() and persist() in same transaction => Attempt to reuse an existing primary key value

an existing primary key value (Persist_Remove_Persist$EntityA:1)   We created a small test
Forum
9

selecting objects that have a particular key/value in persistant HashMap

that the pMap field of some Person objects has the key/value pair "location'/'California'.  Can I create