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What's next?

This chapter introduced the basic principles of JPA using ObjectDB. You can go into details by ... this chapter: Getting Started with JPA and Eclipse Tutorial Getting Started with JPA and NetBeans ... /JPA projects simply by modifying this sample program. Reading the Next Chapters
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Chapter 1 - Quick Tour

This chapter demonstrates basic ObjectDB and JPA concepts by introducing a simple example program ... your IDE refer to one of the following tutorials: Getting Started with JPA and Eclipse Tutorial Getting Started with JPA and NetBeans Tutorial These tutorials provide step by step instructions
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javax.persistence.criteria.MapJoin

collection that has been specified as a java.util.Map. Since: JPA 2.0 Selection<X> alias(String name ... : selection item Since: JPA 2.0 Expression<X> as(Class<X> type) Perform a typecast ... expression of the given type Since: JPA 2.0 Expression<Entry<K,V>> entry() Create an expression
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javax.persistence.criteria.Join

, PluralJoin, SetJoin A join to an entity, embeddable, or basic type. Since: JPA 2.0 Learn how to use JPA criteria API's Join in Chapter 4 of the ObjectDB/JPA manual. Selection<X> alias(String name ... : selection item Since: JPA 2.0 Expression<X> as(Class<X> type) Perform a typecast upon the expression
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javax.persistence.criteria.ListJoin

collection that has been specified as a java.util.List. Since: JPA 2.0 Selection<X> alias(String name ... : selection item Since: JPA 2.0 Expression<X> as(Class<X> type) Perform a typecast ... expression of the given type Since: JPA 2.0 Fetch<X,Y> fetch(String attributeName) Create a fetch join
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javax.persistence.criteria.PluralJoin

to all collection types. It is not intended to be used directly in query construction. Since: JPA 2.0 ... . Parameters: name - alias Returns: selection item Since: JPA 2.0 Expression<X> as(Class<X> type ... of the expression Returns: new expression of the given type Since: JPA 2.0 Fetch<X,Y> fetch(String
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javax.persistence.criteria.SetJoin

collection that has been specified as a java.util.Set. Since: JPA 2.0 Selection<X> alias(String name ... : selection item Since: JPA 2.0 Expression<X> as(Class<X> type) Perform a typecast upon the expression ... expression of the given type Since: JPA 2.0 Fetch<X,Y> fetch(String attributeName) Create a fetch join
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javax.persistence.criteria.CollectionJoin

over an association or element collection that has been specified as a java.util.Collection. Since: JPA 2.0 Selection ... . Parameters: name - alias Returns: selection item Since: JPA 2.0 Expression<X> as(Class<X> type) Perform ... of the expression Returns: new expression of the given type Since: JPA 2.0 Fetch<X,Y> fetch(String
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Step 1: Create a Java Project

IDE for Java EE Developers, you can see in the [New] menu a command for creating a [JPA Project ... with ObjectDB/JPA support. ObjectDB/JPA can also be added to existing projects, by adding ... External JARs... The next step is creating a JPA Entity class.
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Step 1: Create a Java Project

the project. To add ObjectDB/JPA support for the project: Right click the Libraries folder in the [Projects ... with ObjectDB/JPA support. The next step is creating a JPA Entity class.

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.

Need Help?

  1. Search ObjectDB website
  2. Read the FAQ
  3. Follow the Tutorials
  4. View or post in the forum
  5. Search or file an issue
  6. Contact support