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11

Strings in JPQL and Criteria Queries

] FROM] str) function returns a string after removing leading and/or trailing characters (usually space ... to 'UK'. By default, space characters are removed, but any other character can also be specified: TRIM
11

Database Schema Evolution

Modifications to entity classes that do not change their persistent field definitions (their schema) are transparent to ObjectDB. This includes adding, removing and modifying constructors, methods ... the hierarchy, removing an intermediate class in the hierarchy, etc.). Convertible Types When an old
8

JPA Lifecycle Events

the database (during commit or flush). @PreRemove - when an entity is marked for removal in
8

Database Management Settings

" /> Removing ObjectDB evaluation restrictions (of 10 entity classes and 1,000,000 entity objects per database
8

Detached Entity Objects

class or it is a removed entity. A TransactionRequiredException is thrown if there is no active
8

Numbers in JPQL and Criteria Queries

value and a double value is double. The ABS Function The ABS function removes the minus sign from
8

Retrieving JPA Entity Objects

a managed entity (including entity objects in the New, Removed or Detached states). If the object
8

Privacy Policy

to remove that information from Our servers. If We need to rely on consent as a legal basis
1

javax.jdo.PersistenceManager

. The data store object will be removed at commit. Unlike makePersistent, which makes the closure ... , removing it from management by this PersistenceManager. Make an instance transient, removing it from ... an instance transient, removing it from management by this PersistenceManager. Make an instance
0

[ODB1] Chapter 8 - ObjectDB Server

removes an inherited permission, and a new value in the diskspace attribute increases the disk quota

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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