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11

Paths and Types in JPQL and Criteria API

of From) represent FROM variables. FROM variable expressions are considered as basic paths
7

javax.persistence.Lob

. The Lob annotation may be used in conjunction with the Basic annotation or the ElementCollection annotation when the element collection value is of basic type. A Lob may be either a binary or character ... , and except for string and character-based types defaults to Blob. Example 1: @Lob @Basic(fetch=LAZY) @Column
7

javax.persistence.CollectionTable

) Specifies the table that is used for the mapping of collections of basic or embeddable types. Applied ... that correspond to the embeddable class or basic type are derived from the attributes of the embeddable class or from the basic type according to the default values of the Column annotation. In the case
6

javax.persistence.metamodel.Attribute.PersistentAttributeType

<PersistentAttributeType> Since: JPA 2.0 PersistentAttributeType BASIC Basic attribute Basic attribute Since: JPA
6

javax.persistence.ElementCollection

) Defines a collection of instances of a basic type or embeddable class. Must be specified ... : javax.persistence.FetchType.LAZY Since: JPA 2.0 Class targetClass (Optional) The basic or embeddable class that is the element type of the collection. (Optional) The basic or embeddable class
6

javax.persistence.metamodel.Type.PersistenceType

BASIC Basic type Basic type Since: JPA 2.0 PersistenceType EMBEDDABLE Embeddable class Embeddable class
6

javax.persistence.Enumerated

annotation may be used in conjunction with the Basic annotation, or in conjunction with the ElementCollection annotation when the element collection value is of basic type. If the enumerated type is not ... () {...} ... } Since: JPA 1.0 See Also: Basic ElementCollection Learn how to define and use
1

JDO Reference (JavaDoc)

This reference contains the API documentation (similar to JavaDoc) of JDO 2.2. The content is derived from the original JDO documentation with some additions and notes. The most basic JDO types are: All the other JDO types are organized into the following sections:
1

[ODB1] Chapter 7 - JDOQL Queries

a specified order. 7.1 Introduction to JDOQL A basic JDOQL query has the following three components
1

[ODB1] Chapter 4 - JDO Metadata

with a basic JDO metadata file: <?xml version="1.0" encoding="UTF-8"?> <!DOCTYPE jdo SYSTEM "http

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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