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Manual
17

JPA Primary Key

64 bit number (long) that is set automatically by ObjectDB for every new entity object that is stored ... key field: @Entity public class Project { @Id @GeneratedValue long id; // still set ... value generation is discussed in detail in the Generated Values section. Application Set Primary Key
Result
17

ObjectDB Object Database Features

ObjectDB provides a rich set of features. Many features are implemented as part of ObjectDB's ... JPA is very simple, except for mapping, which is irrelevant to ObjectDB. Persistence is set using JPA ... types: Collection, List, Set, ArrayList, Vector, Stack, LinkedList, ArrayDeque, PriorityQueue
Manual
16

SELECT clause (JPQL / Criteria API)

The criteria query API provides several ways for setting the SELECT clause. Single Selection Setting ... .get("currency")).distinct(true); The select method takes one argument of type Selection and sets it as the SELECT clause content (overriding previously set SELECT content if any). Every valid criteria
Manual
16

WHERE clause (JPQL / Criteria API)

language from a specified set of languages: SELECT c, l FROM Country c JOIN c.languages l WHERE c ... Queries The CriteriaQuery interface provides two where methods for setting the WHERE clause. Single ... the WHERE clause content (overriding previously set WHERE content if any). For example, the following JPQL
JDO Doc
15

javax.jdo.JDOEntityManager

string resultSetMapping - the name of the result set mapping Returns: the new query instance Since: JPA ... . Transactional instances are subject to eviction based on the RetainValues setting. Since: JDO 1.0 ... call is made Since: JPA 2.0 boolean getCopyOnAttach() Gets the copyOnAttach setting. Gets the copyOnAttach setting
JDO Doc
15

javax.jdo.Query

to prepare and optimize an execution plan. Since: JDO 1.0 void declareImports(String imports) Set the import statements to be used to identify the fully qualified name of variables or parameters. Set ... is executed with the parameters set by the Map values. Each Map entry consists of a key which is the name
JDO Doc
14

javax.jdo.PersistenceManager

are subject to eviction based on the RetainValues setting. Since: JDO 1.0 See Also: evict(Object pc ... . If exceptions occur during flush, the implementation will set the current transaction's ... the copyOnAttach setting. Gets the copyOnAttach setting. Returns: the copyOnAttach setting. Since: JDO 2.1
Manual
14

Comparison in JPQL and Criteria API

ObjectDB supports two sets of comparison operators, as shown in the following table:   Set 1 - JPQL / SQL Set 2 - Java / JDO Less Than < < Greater Than > > Less Than or Equal To <= <= Greater Than or Equal To >= >= Equal = == Not Equal <> != The two sets differ in the Equal and the Not Equal
Manual
14

Database Replication and Clustering

database. Setting a Master Database A master ObjectDB database is an ordinary database ... , but no other preparations or settings are required. Setting Slave Databases Setting slave databases is very easy
Result
14

Eclipse Public License - v 1.0

that although each Contributor grants the licenses to its Contributions set forth herein, no assurances ... the copyright license set forth in this Agreement. 3. REQUIREMENTS A Contributor may choose ... Contributor must pay those damages. 5. NO WARRANTY EXCEPT AS EXPRESSLY SET FORTH IN THIS AGREEMENT