Fast Object Database for Java - with JPA/JDO support

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What is new in ObjectDB 2.0?

ObjectDB 2.0 supports many new features and improvements, including: Most of the features of the new JPA 2.0 and JDO 2.2 APIs. User defined IDs (primary key) and sequences. Support of unlimited index ... query execution. Support of composite indexes and using indexes in query result sort. Improved query
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Database Explorer

the database and their persistent fields and indexes. The [Query] window enables running JPQL ... , for checking which indexes are used. The Reset button clears the content of all the fields. Refreshing
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Query Parameters in JPA

(no matter in which order). Ordinal Parameters (?index) In addition to named parameters, whose form is :name, JPQL also supports ordinal parameters, whose form is ?index. The following method
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JPA Entity Fields

, since the other side is not stored and calculated by a query. An index on the owner field may accelerate the inverse query and the load of the inverse field. But even with an index, executing a query
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FROM clause (JPQL / Criteria API)

, IN, INDEX, INNER, IS, JOIN, KEY, LEADING, LEFT, LENGTH, LIKE,LOCATE, LOWER, MAX, MEMBER, MIN, MOD
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About ObjectDB Database

. Advanced querying and indexing capabilities. Effective in heavy loaded multi-user environments. Can easily
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Step 7: Run the Spring Web App

At this stage your project should have the following structure: Use copy and paste to replace the content of the index.jsp file (which serves as the default front page) with the following redirection to the controller path: Assuming that Tomcat 6.0 is installed
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Step 6: Set the Spring XML

> index.jsp
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Numbers in JPQL and Criteria Queries

- when the return value is numeric, e.g. INDEX, SIZE. as string functions - when the return value is numeric, e
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Step 7: Run the Spring Web App

At this stage your project should have the following structure: Use copy and paste to replace the content of the index.jsp file (which serves as the default front page) with the following redirection to the controller path: If Tomcat 6.0 is installed as

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