About size

manual

Collections in JPQL and Criteria Queries

Shows how collections and maps can be used in JPQL queries.... topics: IS [NOT] EMPTY SIZE [NOT] MEMBER [OF] [NOT] IN ... collection is empty and TRUE otherwise. SIZE The SIZE(collection) function returns the number of elements in a ...

 
manual

Database Management Settings

Explains settings and performance tuning of the ObjectDB Java object database for JPA/JDO.... element: <database > <size initial = "256kb" resize = "256kb" page = "2kb" ... describes one subelement: The <size> element The <recovery> element The ... <activation> elements The <size> element <size initial = "256kb" resize = ...

 
api-jpa

size(collection)

Create an expression that tests the size of a collection.(Method of javax.persistence.criteria.CriteriaBuilder)

 
faq

Is ObjectDB scalable? What are its limitation?

... ObjectDB supports: Database file size up to 128 TB (= 131,072 GB = 134,217,728 MB). Up to ...

 
forum_thread

Page size - changing after database creation

Hi, I was wondering, is it safe to change page size after database is created and filled with data? Should I set page size to the same value as block size on my filesystem? ... Hi, I was wondering, is it safe to change page size after database is created and filled with data? Should I set page size to the same value as block size on my filesystem? ...

 
forum_thread

Database size is much larger than expected (x2)

I store images into objectdb. The schema is : <URI>::=(<sUrl>, <cMark>, <iSize>, <baBody>, <id>) <sUrl>::=String <cMark>::=char <iSize>::=int <baBody>::=byte[] <id>::=@ID So simple a class will fail after 155,648 insertions with -Xmx1432m, ... at every 0xFFF insertions? Question 2 : Why the size of db increased to 16,671,309,824, while the original images are stored in ... - try commit every 256 images. The database size should be larger than the size of the image files on the file system, but ...

 
forum_thread

Database(*.odb) file size on disk

Hello, we have questions about the file size of ObjectDB database on disk. Can you tell us something about how the deleting of entities affects the size of *.odb files on disk? -Will the released memory always used by new entities? -Will be the database file automatically reduced?   We have created a small test, in which we create and delete entities. It looks like that the released memory are reused but the the file not resized. The database is at the end empty again, but larger than the initial size. ... Hello, we have questions about the file size of ObjectDB database on disk. Can you tell us something about how the deleting of entities affects the size of *.odb files on disk? -Will the released memory always used by ...

 
forum_thread

odb file size doesn't shrink

Hello, why delete from ... doesnt modify size of odb? Even in in embedded mode, and in server mode i use recovery, not recording mode. ... Hello, why delete from ... doesnt modify size of odb? Even in in embedded mode, and in server mode i use recovery, not ... as unused and becomes available for future objects. The size of the database is not reduced, as it usually better, considering ...

 
forum_thread

Speeding up reporting queries with size() on list

Hi, I'm working on some reporting stuff in our application. One of few different reports should include activity on last modified objects. The query for now looks like this: select date(insp.lastModificationDate), insp.modifiedBy, insp.description.length(), insp.products.size(), insp.picture from Inspiration insp order by date(insp.lastModificationDate) desc insp.description is normal String field in Inspiration entity. insp.products is a list with 0 to 600 objects. Definition: ... . length ( ) , insp . products . size ( ) , insp . picture FROM Inspiration insp ORDER ... Maximum file size: 32 MB 0 ...

 
api-jpa

size(collection)

Create an expression that tests the size of a collection.(Method of javax.persistence.criteria.CriteriaBuilder)