About JBoss AS

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Manual
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Database Explorer

it from the command line as follows: > java -jar explorer.jar If explorer.jar is not in the current ... and JDOQL queries, as discussed below. Closing a Database Connection Use the File > Close menu command ... . A Tree window displays objects as a tree. Every database object is represented by a tree node
Result
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Apache License, Version 2.0, January 2004

the terms and conditions for use, reproduction, and distribution as defined by Sections 1 through 9 ... mean the work of authorship, whether in Source or Object form, made available under the License, as ... , elaborations, or other modifications represent, as a whole, an original work of authorship
Manual
4

Query Parameters in JPA

whose name field value is equal to :name, which is a parameter that serves as a placeholder ... (:) followed by a valid JPQL identifier that serves as the parameter name. JPA does not provide an API ... (as other query elements) are represented by objects (of type ParameterExpression or its super
Manual
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Retrieving JPA Entity Objects

of the database. The persistence context serves as a cache of retrieved entity objects. If a requested ... is then added to the persistence context as a managed entity object and returned to the application ... of entity classes and to keep them simple as possible. Retrieval by Class and Primary Key Every entity
Manual
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GROUP BY and HAVING clauses

to grouping by the GROUP BY clauses before arriving at the SELECT clause. GROUP BY as DISTINCT ... the first letters as result. ObjectDB is very flexible in allowing JPQL expressions anywhere in ... implementations. Grouping the Country objects makes them inaccessible to the SELECT clause as
Manual
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JPA Entity Fields

are always considered to be transient. Other fields can be declared explicitly as transient using ... store methods or code. Only the persistent state of the entity object, as reflected by its persistent ... static type, including a generic java.lang.Object, as long as the type of the actual value at runtime
Result
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Eclipse Public License - v 1.0

brought by any other entity based on infringement of intellectual property rights or otherwise. As ... , such as lost profits; iii) states that any provisions which differ from this Agreement are offered ... notices contained within the Program. Each Contributor must identify itself as the originator
Issue
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objectdb-2.6.9_06: Extended Persistence Context fails: 'Attempt to begin a new transaction when a transaction is active'

entity wiring methods: As simplified here to demonstrate the problem: @Singleton @Startup public ... an ideal solution. It works (for now) as a workaround (only) for the purposes of my main real-world ... @Remove remove() from client after calling another method requiring a transaction such as buildProject
Manual
4

WHERE clause (JPQL / Criteria API)

variable. Before passing these Country objects to the SELECT clause for collecting as query results, the WHERE clause gets an opportunity to function as a filter. The boolean expression in the WHERE clause, which is also known as the WHERE predicate, defines which objects to accept. Only Country
Manual
4

JPA / JDO Class Enhancer

tracking of persistent field modifications, avoiding the need for snapshot comparison of entities (as ... (one-to-one relationship) have to be loaded eagerly. Special optimized methods are added to enhanced classes as ... .jar file. You can run it from the command line as follows: > java -cp objectdb.jar com.objectdb