About composite

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Searching lists within objects

multiple Attribute instances with identical type / value by defining a composite unique index on type
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significant performance decrease

An additional index on childNodes should help. If it is still slow, try also composite indexes
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Slow searching with two indexes

should do better. Anyway, the best solution may be defining a composite index on receiver and timeReceived
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Threaded Test - Failed to commit transaction: Unexpected internal exception

could be more efficient with a composite index that contains both priority and creationTime (in the same
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WebService : Failed to get reference value of field using enhanced method

libraries files from the lib folder inside aar file –> composite
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javax.persistence.PersistenceException

Hi I am trying to get a basic EclipseRCP project working with Objectdb. At the very first line in creating a View public void createPartControl(Composite parent) {     EntityManagerFactory emf =          Persistence.createEntityManagerFactory("$objectdb/db/pilots.odb"); I get the following
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EmbeddedId with Generated field value

I know the following 2 ways to declare a composite Primary key: ********* Solution 1 ********* @Entity @IdClass(CompositePK.class) public class A {     @Id private long uid;     @Id private String zone; } public class CompositePK {     private long uid;     private String zone
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2.7.3_03 Erroneous "Attempt to modify a primary key of a managed object"

attached. Thanks. Could you please provide details on the primary key of JdoBlob2? Is it composite