8 | significant performance decrease should help. If it is still slow, try also composite indexes: on classIdentifier + type |
8 | EmbeddedId with Generated field valueI 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 |
8 | EntityManagerFactory Fails To Swtich Over To Slave When Master Is Unavailable has been filed to cover the limitations of composite url and automatic server switch. support Support |
8 | Saving custom list which implements java.util.List fails composition instead of inheritance. i.e. the MyList entity class will implement java.util.List |
8 | "Automatic" AuditingAny ideas around how I could do "automatic" auditing of changes to objects? (An equivalent to Hibernate's Envers) Thanks. Michael. mmcgovern Michael McGovern You may try the following: Define the entity class with a composite primary key [id, revision]. Never delete entity objects - alway update |
8 | WebService : Failed to get reference value of field using enhanced method from the lib folder inside aar file –> <parameter name=“ServiceTCCL”>composite</parameter |
8 | Searching lists within objects: Avoid multiple Attribute instances with identical type / value by defining a composite unique |
8 | Slow searching with two indexes a composite index on receiver and timeReceived. This will allow execution of this query purely |
1 | Blocked by find. Use numbers if possible. Even a composite primary key of 2 long values could be faster |
1 | ObjectDB 2.8.1Improved query plan evaluation (including for selecting composite indexes). Fixed new statistics collection for queries. Fixed a bug in LEFT OUTER JOIN queries (issue #2438). |
