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Date and Time in JPQL and Criteria Queries

expressions - in navigation to persistent date and time fields. as results of predefined JPQL current date and time functions. Current Date and Time JPA defines special JPQL expressions that are evaluated to the date and time on the database server when the query is executed: CURRENT_DATE

Internal exception when updating date filed (TemporalType.DATE)

Hello! ObjectDB version 2.5.3_02. I get internal exception when commiting update Date field (javax.persistence.TemporalType.DATE). [ObjectDB 2.5.3_02] javax.persistence.RollbackException Failed ... .getTimeZone("GMT+03:00"));         List<Date> dates = new ArrayList<Date>();         calendar.set(1980, 2

Number of current connections

Is there any way to find out the number of current connections to the DB server? natmaclin Natalia Levine Currently not. You may subscribe to this feature request and update it according to your needs. support Support

Is there an API to get the current version of ObjectDB that's being used?

Is there an API to get the current version of ObjectDB that's being used? This would be very handy to have, because it is somewhat difficult to know what version of the ObjectDB you are currently using since the objectdb.jar filename remains the same for all versions (which is not a bad thing by

Query filter comparing Dates

Hi, I am using an indexed java.util.Date field in my Entity and I came across some weird behaviour in query filters comparing this Date field. Could You please clarify why are there zero-size result ... am comparing 2 dates which should be equal because they are showing exactly same inner millisecond count. I


Enum Constant javax.persistence.TemporalType DATE Map as java.sql.Date Since: JPA 1.0

JPA Persistable Types

, Date and Math types. Multi value types - Collections, Maps and Arrays. Miscellaneous types: Enum ... , java.math.BigDecimal. java.lang.String. java.util.Date, java.util.Calendar, java.sql.Date, java.sql.Time, java.sql.Timestamp. Date and time types are discussed in more detail in the next paragraph. Date


Method javax.jdo.datastore.Sequence Object current() Returns the current sequence value object if it is available. It is intended to return a sequence value object previously used. If the current sequence value is not available, throw JDODataStoreException. Returns: the current value Since: JDO 2.0


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

[ODB1] Chapter 7 - JDOQL Queries

for system types (String, Date, ArrayList, ...). String instances can be compared using all six comparison operators. Date instances can be compared using all six comparison operators. Numeric wrapper types ... . The only way to include objects with no literal representation in queries (as Date instances

Getting Started

ObjectDB is very easy to use. Follow the Getting Started Tutorial and the Quick Tour manual chapter and in minutes you may be able to write and run first Java programs against ObjectDB.

Prior knowledge or experience in database programming (SQL, JDBC, ORM, JPA, etc.) is not required, but some background in using the Java language is essential.

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