About Data Source

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Forum
1

Opensource ObjectDB

we have the example of Hibernate (ORM) and Apache Hadoop (framework for Big Data). In my opinion ... always be commercial? +1 Moreover, some companies don't want to get stuck in a product which is closed source ... in advance the results of open sourcing a commercial project. Success stories (as you mentioned
Forum
1

Schema Update: class hierarchy change

.throwSetIllegalArgumentException(Unknown Source) at sun.reflect.UnsafeFieldAccessorImpl.throwSetIllegalArgumentException(Unknown Source) at sun.reflect.UnsafeFieldAccessorImpl.ensureObj(Unknown Source) at sun.reflect.UnsafeObjectFieldAccessorImpl.set(Unknown Source) at java.lang.reflect.Field.set
Forum
1

Query results are not up to date for entities, not primitives

generic functions to build generic TypedQuerys. I just realized that the data retrieving up to date if I ... ), and The 2nd level data cache is disabled or explicitly bypassed by the query.
Issue
1

each 1-2 days objects on some objectdb level lock/block each other

" /> <data path="$objectdb/db" /> data rather than against the indexes. Maybe setting query timeout could also help, at least to kill ... )         at java.lang.Thread.run(Unknown Source)    Locked ownable synchronizers
Forum
1

Dependency from enhanced classes to the objectDB library

.eclipse.osgi.internal.loader.sources.SingleSourcePackage.loadClass(SingleSourcePackage.java:36 ... .invoke0(Native Method) at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.lang.reflect.Method.invoke(Unknown
Forum
1

Master database switching to read-only mode, possibly caused by slave failure

.EMImpl.merge(EMImpl.java:456) at sun.reflect.GeneratedMethodAccessor528.invoke(Unknown Source ... .java:133) at java.lang.Thread.run(Unknown Source) The reading continued to work ... 30752@hardhead We did not see anything wrong in the monitoring data for the master instance
Result
1

java.lang.Throwable

of the exceptional situation so as to include relevant information (such as stack trace data). A throwable contains ... a call to initCause. The fillInStackTrace() method is called to initialize the stack trace data in ... . The fillInStackTrace() method is called to initialize the stack trace data in the newly created throwable. Parameters
JDO Doc
1

javax.jdo.InstanceCallbacks

are loaded from the data store into this instance. Called after the values are loaded from the data store ... jdoPreStore() Called before the values are stored from this instance to the data store. Called before the values are stored from this instance to the data store. Data store fields
JPA Doc
1

javax.persistence.Cache

(Class cls, Object primaryKey) Whether the cache contains data for the given entity. Whether the cache contains data for the given entity. Parameters: cls - entity class primaryKey - primary key ... ) Remove the data for entities of the specified class (and its subclasses) from the cache. Remove the data
JPA Doc
1

javax.persistence.CacheStoreMode

the behavior when data is read from the database and when data is committed into the database ... /update entity data into cache when read from database and when committed into database. Insert/update entity data into cache when read from database and when committed into database. Forces refresh