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55

Geospatial functions

given latitude/longitude) ?Normally you would calculate the distance like: double cx = Math.toRadians(fromLat); double cy = Math.toRadians(fromLon); double px = Math.toRadians(toLat); double py = Math.toRadians(toLon); // see http://de.wikipedia.org/wiki/Orthodrome double gamma = Math.acos
42

JPA Persistable Types

, Date and Math types. Multi value types - Collections, Maps and Arrays. Miscellaneous types: Enum ... java.lang: Boolean, Byte, Short, Character, Integer, Long, Float and Double. java.math.BigInteger, java.math.BigDecimal. java.lang.String. java.util.Date, java.util.Calendar, java.sql.Date, java.sql
34

Index Definition

, Long, Float, Double. java.math.BigInteger, java.math.BigDecimal. java.lang.String. java.util.Date
34

ObjectDB Object Database Features

.util.Date, java.sql.Date, java.sql.Time and java.sql.Timestamp. Math types: java.lang.BigInteger ... .Timestamp. Math: java.lang.BigInteger and java.lang.BigDecimal. Auto Value Generation Modes
34

JPA Primary Key

.lang: Byte, Short, Character, Integer, Long, Float, Double. java.math.BigInteger, java.math.BigDecimal
10

javax.persistence.Id

.sql.Date; java.math.BigDecimal; java.math.BigInteger. The mapped column for the primary key
10

javax.persistence.Basic

types, String, java.math.BigInteger, java.math.BigDecimal, java.util.Date, java.util.Calendar, java.sql
3

[ODB1] Chapter 3 - Persistent Classes

. java.math.BigInteger and java.math.BigDecimal Any array of persistent type, including multi
2

[ODB1] Chapter 4 - JDO Metadata

. String and Integer), types defined in java.math (e.g. BigInteger), and java.util.Date. Collections
0

setResultClass(cls)

, String, or Object[]; or one of the java.math classes BigInteger or BigDecimal; or the java.util

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.

Need Help?

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  2. Read the FAQ
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