Home » Search

About Index

81-90 of 200Refresh
Forum
6

Performance issues on aggregate query

associatedFileCurrentVersion;     public Date associatedFileLastModification; @Index public String classIdentifier ... >(); public String customIcon; @Index public String fileURL; @Index public String foreignUuid; @Index ... ; @Index public Date modified; @Index public String nodePath; @Index public String objectName; @Index
Forum
6

Queries are slow on a large database

needs 4 to 5 minutes to return a result. I have been adviced to use indexes ... :     
Forum
5

What role is the JDO in ObjectDB?

about JDO and JPA in ObjectDB. Thanks for your reply. I found a flaw in JPA that the @Index can not be used. These is an example in ObjectDB which used @Index, I traced it to the JDO lib. So if I want to make a index without SQL on database, then @Index is a mandatory function. Any suggestion
Forum
5

Exception after update of indices of Entity class

Hello, I changed the index definition of an entity class from @Index()... to @Indices() and now I ... . Could you please try opening the database after the index change with the most recent ObjectDB build ... ) Best regards Thanks. Changing from @Index()... to @Indices() should not change
Forum
4

alter table

... alter table add index ... TIA There are no tables is ObjectDB. Anyway, > alter table add column ... ). > alter table add index ... Add the index definition and rebuild the database using the Object Doctor ... anything about "add index" in the links you given. TIA You can add a new index to an existing entity class
JDO Doc
4

javax.jdo.annotations.Indices

javax.jdo.annotations Annotation Indices Target: Classes Annotation for a group of index constraints. Since: JDO 2.1 Index[] value The indices The indices Returns: The indices Since: JDO 2.1
Forum
4

ODB IndexActivation NullPointerException

Hi, We have created indexes on an existing database, which has 4.3 million objects. As soon ... ) * Batch ended at 88 I've read that: "Indexing large amount of data may take considerable processing time." Do we have to wait until index activation is finished before we can start using the database or
JDO Doc
4

setRange(fromIncl, toExcl)

algorithm is done at the data store. Parameters: fromIncl - 0-based inclusive start index toExcl - 0-based exclusive end index, or Long.MAX_VALUE for no limit. Since: JDO 2.0
JDO Doc
4

javax.jdo.Query

- 0-based inclusive start index toExcl - 0-based exclusive end index, or Long.MAX_VALUE for no limit
Forum
4

Mysterious "Attempt to persist a reference to a non managed instance" error

, but it's still failing. It involves two entities, Index and Ostrich. The thing to note is that the Index structure is recursive through maps; but that's never caused any problem for me in the past ... .CascadeType.*; import static javax.persistence.FetchType.*; @Entity public class Index