About data integrity

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Tutorial
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Step 3: Define a Spring DAO Component

Operations on the database will be performed by an instance of a Data Access Object (DAO) that we will define in this step as a Spring MVC component: Open the [New Java Class] dialog box by right clicking the guest package node (in the [Projects] window under Source Packages) and selecting New
Result
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Eclipse Public License - v 1.0

of program errors, compliance with applicable laws, damage to or loss of data, programs or equipment
Manual
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JPA Query Expressions (JPQL / Criteria)

, sqrt). String expressions (like, length, locate, lower, upper, concat, substring, ...). Data
Result
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ObjectDB License Agreement [ver. 2.0.4]

limited to loss of revenue, profit or data) however caused and regardless of the theory of liability
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ObjectDB Web Site - Terms and Conditions of Use

, damages for loss of data or profit, or due to business interruption,) arising out of the use or
Manual
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SELECT clause (JPQL / Criteria API)

the result data. CriteriaBuilder's construct JPQL user defined result objects are also supported by the JPA
FAQ
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What is ObjectDB?

ObjectDB is an Object Oriented Database Management System (ODBMS). It provides all the standard database management services (storage and retrieval, transactions, lock management, query processing, etc.), but it uses an object oriented model to store and manage data. You can easily store ordinary
Result
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What is new in ObjectDB 2.0?

(PersistenceManagerFactory scope) object data cache. Query program cache for repeating queries
Manual
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Locking in JPA

JPA 2 supports both optimistic locking and pessimistic locking. Locking is essential to avoid update collisions resulting from simultaneous updates to the same data by two concurrent users. Locking in ObjectDB (and in JPA) is always at the database object level, i.e. each database object is locked
Manual
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Database Schema Evolution

explicitly in the configuration to avoid data loss. The Schema Update section in chapter 6 explains how to specify such changes in the configuration file.