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Manual
23

JPA Entity Fields

provider (such as Hibernate) or to change default field settings. For example: @Entity public class ... that field. Cascade and fetch settings are explained in chapter 3. A persistent field whose type ... Fields Inverse (or mapped by) fields contain data that is not stored as part of the entity in
Manual
22

JPA Persistable Types

The term persistable types refers to data types that can be used in storing data in the database ... , Mapped superclasses, Embeddable classes. Simple Java data types: Primitive types, Wrappers, String ... persistent fields would cause data duplication in the database. Entity Classes An entity class
Tutorial
21

Step 6: Design a BIRT Report Table

. Set the column number to 2, number of details to 1, select the data set (e.g. Points by X) in the third field and click OK. Fill the table with data by dragging the x and y columns from the data set in the [Data Explorer] window (under the data set node) and dropping them on the second table row
Manual
20

Database Doctor

fresh database file and then copying all the recoverable data in the corrupted database file to the new
FAQ
20

Which API should I use - JPA or JDO?

You can use ObjectDB with either the Java Persistence API (JPA) or the Java Data Objects (JDO) API. Both share similar architecture, design and abilities. When to prefer JPA JPA is more commonly used. Therefore, it might be the first choice for most new applications. You can use JPA as the primary
Manual
18

Retrieving JPA Entity Objects

with data that is retrieved from the database (or from the L2 cache - if enabled). The new entity object ... as is. Otherwise, the object data is retrieved from the database and a new managed entity object with that retrieved data is constructed and returned. If the object is not found in the database null
Result
17

Privacy Policy

sets out the different areas where user privacy is concerned and outlines the obligations ... and protects user data and information will also be detailed within this policy. The Website ... settings to block all cookies from this website and its external serving vendors. This website uses
JDO Doc
17

javax.jdo.PersistenceManager

1.0 void deletePersistent(Object pc) Delete the persistent instance from the data store. Delete the persistent instance from the data store. This method must be called in an active transaction. The data store object will be removed at commit. Unlike makePersistent, which makes the closure
JPA Doc
17

join(set)

Method javax.persistence.criteria.From SetJoin join(   SetAttribute set ) Create an inner join to the specified Set-valued attribute. Parameters: set - target of the join Returns: the resulting join Since: JPA 2.0
JPA Doc
17

join(set, jt)

Method javax.persistence.criteria.From SetJoin join(   SetAttribute set,   JoinType jt ) Create a join to the specified Set-valued attribute using the given join type. Parameters: set - target of the join jt - join type Returns: the resulting join Since: JPA 2.0