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7

javax.persistence.NamedQuery

named queries in Chapter 4 of the ObjectDB/JPA manual. QueryHint[] hints (Optional) Query properties and hints. (Optional) Query properties and hints. May include vendor-specific query hints. Default
7

javax.persistence.NamedNativeQuery

to an entity or mapped superclass. Since: JPA 1.0 QueryHint[] hints Query properties and hints. Query properties and hints. (May include vendor-specific query hints.) Default value: {} Since: JPA 1.0 String
5

combined index not used

again. Ability to manually select the query plan that is executed using a hint (will be explained in ... . support Support To manually select a query plan 2 new query hints are introduced in build 2.7.6_01 ... ) of the executed query plan (always 1 unless a hint is provided), the total number of query plans in
5

find(entityClass, primaryKey, properties)

, it is returned from there. If a vendor-specific property or hint is not recognized, it is silently ... and vendor-specific properties and hints Returns: the found entity instance or null if the entity does not
5

refresh(entity, properties)

, and overwriting changes made to the entity, if any. If a vendor-specific property or hint is not recognized ... properties and hints Throws: IllegalArgumentException - if the instance is not an entity or the entity
5

javax.persistence.Basic

on the persistence provider runtime that the value must be eagerly fetched. The LAZY strategy is a hint ... . This is a hint and is disregarded for primitive types; it may be used in schema generation. If not
5

getProperties()

Method javax.persistence.EntityManager Map<String,Object> getProperties() Get the properties and hints and associated values that are in effect for the entity manager. Changing the contents of the map does not change the configuration in effect. Returns: map of properties and hints in effect for entity manager Since: JPA 2.0
5

javax.persistence.FetchType

on the persistence provider runtime that data must be eagerly fetched. The LAZY strategy is a hint ... . The implementation is permitted to eagerly fetch data for which the LAZY strategy hint has been specified. Example
5

getHints()

Method javax.persistence.Query Map<String,Object> getHints() Get the properties and hints and associated values that are in effect for the query instance. Returns: query properties and hints Since: JPA 2.0
0

javax.jdo.Query

void compile() Verify the elements of the query and provide a hint to the query to prepare and optimize an execution plan. Verify the elements of the query and provide a hint to the query to prepare

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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