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Manual
15

Locking in JPA

- which represents an exclusive lock. Setting a Pessimistic Lock An entity object can be locked ... can be set to allow waiting for a pessimistic lock for a specified number of milliseconds. The hint can be set in several scopes: For the entire persistence unit - using a persistence.xml property
Manual
13

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
13

ObjectDB Object Database Features [2018-01-27]

ObjectDB provides a rich set of features. Many features are implemented as part of ObjectDB's ... . Persistence is set using JPA/JDO annotations (e.g. @Entity, @Id, @Index). Transparent activation ... .lang.BigDecimal. Collection types: Collection, List, Set, ArrayList, Vector, Stack, LinkedList
Result
13

ObjectDB Object Database Features [2018-10-27]

ObjectDB provides a rich set of features. Many features are implemented as part of ObjectDB's ... . Persistence is set using JPA/JDO annotations (e.g. @Entity, @Id, @Index). Transparent activation ... .lang.BigDecimal. Collection types: Collection, List, Set, ArrayList, Vector, Stack, LinkedList
Result
13

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
12

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
Manual
12

SELECT clause (JPQL / Criteria API)

query API provides several ways for setting the SELECT clause. Single Selection Setting a single ... .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 API
Manual
12

Chapter 6 - Configuration [2011-02-21]

setting the "objectdb.home" system property: System.setProperty("objectdb.home", "/odb"); // new $objectdb As with any other system property it can also be set as an argument to the JVM ... file is loaded from $objectdb/objectdb.conf. You can specify an alternative path by setting
JDO Doc
11

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
11

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