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55

Date and Time in JPQL and Criteria Queries

such functions as an extension. ObjectDB supports 6 functions for extracting the YEAR, MONTH, DAY, HOUR, MINUTE and SECOND. For example: YEAR({d '2011-12-31'}) is evaluated to 2011. MONTH({d '2011-12-31 ... that extract date parts:   Expression<Integer> year = cb.function("year", Integer.class, date
15

TemporalType injection with Calendar using JPA

,endDayOfWeek=1,endTime=3600000,endTimeMode=2]],firstDayOfWeek=2,minimalDaysInFirstWeek=4,ERA=1,YEAR=2011,MONTH=4,WEEK_OF_YEAR=22,WEEK_OF_MONTH=5,DAY_OF_MONTH=30,DAY_OF_YEAR=150,DAY_OF_WEEK=2,DAY_OF_WEEK_IN_MONTH ... ]],firstDayOfWeek=2,minimalDaysInFirstWeek=4,ERA=1,YEAR=2011,MONTH=4,WEEK_OF_YEAR=22,WEEK_OF_MONTH=5,DAY_OF_MONTH
12

Group by date / time

Hi, I'm trying to create reporting query that will return entities grouped by year / mont / day. Each entity has it's own field that holds java.lang.Date. There is no function like YEAR(), MONTH() or ... stats WHERE YEAR(record_date) = 2009 GROUP BY YEAR(record_date), MONTH(record_date) or maybe
9

ObjectDB Object Database Features

a result of years of R&D). Outperforms competing products. Connection Pooling Automatic connection pool
9

Eclipse Public License - v 1.0

to this Agreement will bring a legal action under this Agreement more than one year after the cause of action arose
9

Should I use ObjectDB and JDO?

and only found 3, and they are 13 years old and don't cover annotations. Is JDO and object databases ... have about 10 years of development experience with GemStone S, moderate experience playing with db4o, and now several years with Objectdb. I have also spent many, many hours over many years comparing DBMS
7

ObjectDB future

Hi, For how long ObjectDB will exist and will be actively maintained? Will it still be there in 10 years? In 20 years? Thanks. randomguy Anton Yes, ObjectDB is an active project and will probably be here in the next 10, 20 and 50 years. Your question is fair because the ODBMS market in general
7

Failed to read the value of field using reflection (error 363)

am perplexed as I have use JPA and ObjectDB for years now. I could use your assistance in overcoming ... that has already been fixed. The stack trace is produced by ObjectDB 2.3.7, which is 2 years old now, and many issues have been fixed in the last 2 years. Please try switching to the last ObjectDB version
2

[ODB1] Chapter 7 - JDOQL Queries

child by not more than 25 years (assuming the child at position 0 is the older child). Support ... ); The first four lines of code prepare a Date instance representing the first day of the year 2000 ... by not more than 25 years (a similar query, but not JDO portable, is shown in section 7.2
1

ObjectDB 2 JDO Manual

course on database technology. Last year we used odb104fe, and I was happy to see the updated web page ... databases for many years who are being lost due to a lack of JDO documentation. 1) makes working ... to my persistence needs for at least the next five years. AlphaOne Ron Brennan

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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