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5

Mapped By Fetch is very Slow

Well ! I think i pointed out a HUGE performance issue with mapped-by attribute (yeah ... , go the MyEntity class and remove "mapped-by". You obtain 1 second max of query fetch. So my performance issue ... .ALL,mappedBy = "myEntity") // Test by adding / remove "mappedBy" public MyEntityChild getEntityChild
Manual
5

JPA Persistable Types

are represented in queries by entity names. By default, the entity name is the unqualified name ... explicitly by using the name attribute of the Entity annotation: @Entity(name="MyName") public ... superclasses are treated by ObjectDB as ordinary entity classes. Mapped superclasses are really
JDO Doc
5

javax.jdo.JDOCanRetryException

of this throwable. Subclasses may override this method in order to produce a locale-specific message. For subclasses ... JDK1.0 Throwable[] getNestedExceptions() The exception may have been caused by multiple exceptions in the runtime. The exception may have been caused by multiple exceptions in the runtime. If multiple
JDO Doc
5

javax.jdo.JDODataStoreException

this method in order to produce a locale-specific message. For subclasses that do not override ... [] getNestedExceptions() The exception may have been caused by multiple exceptions in the runtime. The exception may have been caused by multiple exceptions in the runtime. If multiple objects caused the problem
JDO Doc
5

javax.jdo.JDOException

it to return a cause set by some other means. This is appropriate for a "legacy chained throwable ... order to produce a locale-specific message. For subclasses that do not override this method ... () The exception may have been caused by multiple exceptions in the runtime. The exception
JDO Doc
5

javax.jdo.JDOFatalDataStoreException

. Subclasses may override this method in order to produce a locale-specific message. For subclasses ... Throwable[] getNestedExceptions() The exception may have been caused by multiple exceptions in the runtime. The exception may have been caused by multiple exceptions in the runtime. If multiple objects
JDO Doc
5

javax.jdo.JDOFatalException

. Creates a localized description of this throwable. Subclasses may override this method in order ... may have been caused by multiple exceptions in the runtime. The exception may have been caused by ... [] getStackTrace() Provides programmatic access to the stack trace information printed by printStackTrace
JDO Doc
5

javax.jdo.JDOFatalInternalException

description of this throwable. Subclasses may override this method in order to produce a locale-specific ... (which may be null). Since: Java JDK1.0 Throwable[] getNestedExceptions() The exception may have been caused by multiple exceptions in the runtime. The exception may have been caused by multiple exceptions in
JDO Doc
5

javax.jdo.JDOFatalUserException

description of this throwable. Subclasses may override this method in order to produce a locale-specific ... (which may be null). Since: Java JDK1.0 Throwable[] getNestedExceptions() The exception may have been caused by multiple exceptions in the runtime. The exception may have been caused by multiple exceptions in
JDO Doc
5

javax.jdo.JDONullIdentityException

of this throwable. Subclasses may override this method in order to produce a locale-specific message. For subclasses ... JDK1.0 Throwable[] getNestedExceptions() The exception may have been caused by multiple exceptions in the runtime. The exception may have been caused by multiple exceptions in the runtime. If multiple