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Manual
281

Date and Time in JPQL and Criteria Queries

Date and time expressions may appear in JPQL queries: as date and time literals - e.g. {d '2011-12-31'}, {t '23:59:59'}. as parameters - when date and time values are assigned as arguments. as path expressions - in navigation to persistent date and time fields. as results of predefined JPQL current
Manual
83

JPA Persistable Types

only once even if they are referenced multiple times. Referencing instances of other persistable types from multiple ... .Time, java.sql.Timestamp. Date and time types are discussed in more detail in the next paragraph. Date and Time (Temporal) Types The java.sql date and time classes represent different parts of dates
Manual
59

Database Schema Evolution

entity class. This is done automatically in memory each time the entity object is loaded. The database
JDO Doc
54

Constants.PMF_ATTRIBUTE_SERVER_TIME_ZONE_ID

Static Field javax.jdo.Constants String PMF_ATTRIBUTE_SERVER_TIME_ZONE_ID The name of the persistence manager factory element's "server-time-zone-id" attribute. Since: JDO 2.1
JPA Doc
54

TemporalType.TIME

Enum Constant javax.persistence.TemporalType TIME Map as java.sql.Time Since: JPA 1.0
JDO Doc
53

Constants.PROPERTY_SERVER_TIME_ZONE_ID

Static Field javax.jdo.Constants String PROPERTY_SERVER_TIME_ZONE_ID Mapping "javax.jdo.option.ServerTimeZoneID" Since: JDO 2.1
JDO Doc
53

VersionStrategy.DATE_TIME

Enum Constant javax.jdo.annotations.VersionStrategy DATE_TIME Since: JDO 2.1
Forum
25

Does run time enhancer due to GlassFish/Payara do anything that would affect loaded compile-time entity classes ?

ObjectDB support wrote elsewhere: ... you do not need the Enhancer agent, since you use build time ... to disable the enhancer agent ... Q: Does run time enhancer due to GlassFish/Payara do anything that would affect loaded compile-time enhanced entity classes (other than just logging, typically just info
Forum
22

find() cost unreasonable time!

, why? Result: =========== find time @ 24.125000 getSons time @ 0.000000 1 : type:Nodes, sons:2 child : 2 child : 3 Iterator time @ 0.000000 find time @ 0.000000 getSons time @ 0.000000 2 : type:Nodes, sons:2 child : 4 child : 5 Iterator time @ 0.000000 find time @ 0.000000 getSons
Forum
20

Date field Index is corrupted due to time change

): We create a 1G DB file when the application starts for the fist time. The size of the DB file does not ... one time. The load never exceeds more than 5 transactions per 10 seconds.   So far we know ... of October at 3am. We think this is significant as this is exactly the time when Madrid changed clocks