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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
Manual
3

SSL Configuration

") specifies if SSL is used. As shown above, SSL is disabled by default. It could be enabled when accessing remote ObjectDB databases over an insecure network such as the Internet. SSL Keystore and Truststore Files To use SSL you have to generate at least two files: A Keystore file that functions as
Manual
3

JPA Criteria API Queries

JPQL queries are defined as strings, similarly to SQL. JPA criteria queries, on the other hand ... . as named queries) may be preferred. For dynamic queries that are built at runtime - the criteria API ... Country c An equivalent query can be built using the JPA criteria API as follows: CriteriaBuilder cb
Manual
3

Database Connection using JPA

instance obtained from the EntityManager. An EntityManager instance also functions as a factory ... of the createEntityManagerFactory method takes a map of persistence unit properties as a second parameter: Mapas an argument a name of a persistence
Forum
3

2.5.3_02: java.lang.UnsupportedOperationException

) at com.sun.ejb.EjbInvocation.proceed(EjbInvocation.java:582) at org.jboss.weld.ejb ... .invoke(Method.java:606) at org.jboss.weld.util.reflection.Reflections.invokeAndUnwrap(Reflections.java:396) at org.jboss.weld.bean.proxy.EnterpriseBeanProxyMethodHandler.invoke
Result
3

Posting to ObjectDB Website - Important Instructions

. Where to Post Almost everything should be posted to the ObjectDB Forum - and not as an help desk support ticket or as an issue. The exceptions are: Clear ObjectDB bugs, such as unexpected exception thrown ... discussions that must remain private (e.g. special licensing topics) should be posted as Help desk support
Manual
3

Index Definition

; } When indexed fields are specified explicitly in the members attribute, as shown ... , the @Uniques annotation can wrap multiple @Unique annotations. As shown above, the members attribute ... to values that are stored as part of the entity. Therefore, indexes on multi part paths are only allowed
Manual
3

JPA Persistence Unit

to instantiate an EntityManagerFactory in JPA (as explained in the JPA Overview section) requires ... that is described in this manual can be replaced by equivalent XML in the mapping files (as explained ... , username and password, as demonstrated above. XML Mapping Metadata ObjectDB supports using XML metadata as
Manual
3

Date and Time in JPQL and Criteria Queries

Date and time expressions may appear in JPQL queries: as date and time literals - e.g. {d '2011-12-31'}, {t '23:59:59'}. as parameters - when date and time values are assigned as arguments. as path expressions - in navigation to persistent date and time fields. as results of predefined JPQL current