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Setting and Tuning of JPA Queries

a LockTimeoutException. Query Hints Additional settings can be applied to queries via hints. Supported Query

ObjectDB License Agreement [ver. 2.0.4]

prevail s over any conflicting or additional terms of any oral or written quote, acknowledg e ment

Detached Entity Objects

EntityManager. In addition, in JPA 2 we can detach an entity object by using the detach method: em.detach

Strings in JPQL and Criteria Queries

l4 = cb.notLike(path, "a%"); // additional methods take also an escape character // LENGTH

Collections in JPQL and Criteria Queries

is TRUE if languages does not contain 'English'. [NOT] IN The [NOT] IN operator provides an additional

Logical Operators in JPQL and Criteria API

Additional factory methods are available for a variant number of predicates: Predicate p3 = cb

Step 6: Set the Spring XML

suffix to the Spring dispatcher servlet. Additional spring configuration is set in another XML file

Step 6: Set the Spring XML

dispatcher servlet. Additional spring configuration is set in another XML file (whose name is derived from

Step 1: Create a Java EE 6 Web Project

... button and the Download additional server adapters link. Follow the instructions and specify the path

JPA Tutorials

instructions on how to create the sample applications. In addition, the sample applications

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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