ObjectDB Database Search

What are the main difference apart from the JPA. Can ObjectDB provide the same Graph functionalities. Regards. peric.emil Emil Perić ObjectDB is an Object Oriented Database and Neo4J is a graph ... , ObjectDB provides also some graph functionalities, but probably not all the functionality of a pure

a graph of objects, I'd like to know all the objects that changed and commited, so that I can generate view messages based on that graph of objects.  e.g: if a collection of User Entity objects ... of the object graph have already been retrieved, they won't be retrieved for the detached object. I'm not

I am working on a project where I need to travel through a massive graph of objects ... , then isn't the database actually retrieving the whole graph stored in the database, considering that every Node in my graph is at some level descendant of the root Node. I have been looking for an optimum

JPA Method in javax.persistence.Subgraph Subgraph addKeySubgraph (   String attributeName ) Add a node to the graph that corresponds to a map key that is a managed type. This allows for construction of multi-node entity graphs that include related managed types. Parameters

JPA Method in javax.persistence.Subgraph Subgraph addKeySubgraph (    Attribute  attribute,    Class  type ) Add a node to the graph that corresponds to a map key that is a managed type with inheritance. This allows for construction of multi-node entity graphs

JPA Method in javax.persistence.Subgraph Subgraph addKeySubgraph (    Attribute  attribute ) Add a node to the graph that corresponds to a map key that is a managed type. This allows for construction of multinode entity graphs that include related managed types. Parameters

JPA Method in javax.persistence.EntityGraph Subgraph addKeySubgraph (   String attributeName ) Add a node to the graph that corresponds to a map key that is a managed type. This allows for construction of multi-node entity graphs that include related managed types. Parameters

JPA Method in javax.persistence.EntityGraph Subgraph addKeySubgraph (    Attribute  attribute,    Class  type ) Add a node to the graph that corresponds to a map key that is a managed type with inheritance. This allows for construction of multi-node entity graphs

JPA Method in javax.persistence.EntityGraph Subgraph addKeySubgraph (   String attributeName,    Class  type ) Add a node to the graph that corresponds to a map key that is a managed type with inheritance. This allows for construction of multi-node entity graphs

JPA Method in javax.persistence.EntityGraph Subgraph addSubgraph (   String attributeName,    Class  type ) Add a node to the graph that corresponds to a managed ... of the entity graph . Subclass subgraphs will automatically include the specified attributes of superclass

JPA Method in javax.persistence.EntityGraph Subgraph addSubgraph (   String attributeName ) Add a node to the graph that corresponds to a managed type. This allows for construction of multi-node entity graphs that include related managed types. Parameters: attributeName - name

JPA Method in javax.persistence.EntityGraph Subgraph addKeySubgraph (    Attribute  attribute ) Add a node to the graph that corresponds to a map key that is a managed type. This allows for construction of multi-node entity graphs that include related managed types. Parameters

JPA Annotation Attribute in jakarta.persistence.NamedEntityGraph String name default "" (Optional) The name used to identify the entity graph in calls to EntityManager.getEntityGraph . If no name ... graph names must be unique within the persistence unit. Since: JPA 2.1

JPA Method in javax.persistence.EntityGraph Subgraph addSubgraph (    Attribute  attribute,    Class  type ) Add a node to the graph that corresponds to a managed ... of the entity graph . Subclass subgraphs will automatically include the specified attributes of superclass

JPA Method in javax.persistence.EntityGraph Subgraph addSubgraph (    Attribute  attribute ) Add a node to the graph that corresponds to a managed type. This allows for construction of multi-node entity graphs that include related managed types. Parameters: attribute - attribute

would be to traverse the whole graph of object nodes via reflection which is neither a nice ... is applied to the pc parameter, as if detachCopy(Object) had been called. After the graph of instances

get mixed, which is forbidden - each PersistenceManager should have its own separate graphs ... added to a new graph of objects, forming this forbidden mix.   support Support Thank

JPA Method in jakarta.persistence.EntityGraph Subgraph addTreatedSubgraph (   Class  type ) Add additional attributes to this entity graph that correspond to attributes of subclasses of the entity type of this EntityGraph . Subclass subgraphs automatically include the specified

JPA Method in jakarta.persistence.EntityManager List getEntityGraphs (   Class  entityClass ) Return all named EntityGraph s that are defined for the given entity class type. Parameters: entityClass - entity class Return: list of all entity graphs defined for the entity Throws: IllegalArgumentException - if the class is not an entity Since: JPA 2.1

JPA Method in javax.persistence.Subgraph void addAttributeNodes (    Attribute ... attribute ) Add one or more attribute nodes to the entity graph . Parameters: attribute - attribute Throws: IllegalStateException - if this EntityGraph has been statically defined Since: JPA 2.1

JPA Method in javax.persistence.Subgraph void addAttributeNodes (   String... attributeName ) Add one or more attribute nodes to the entity graph . Parameters: attributeName - name of the attribute Throws: IllegalArgumentException - if the attribute is not an attribute

JPA Interface AttributeNode Type Parameters: - The type of the attribute. Represents an attribute node of an entity graph . See Also: EntityGraph Subgraph NamedAttributeNode Since: JPA 2.1 Public Methods String getAttributeName () Return the name of the attribute corresponding to the attribute node

JPA Method in javax.persistence.EntityGraph List getAttributeNodes () Return the attribute nodes of this entity that are included in the entity graph . Return: attribute nodes for the annotated entity type or empty list if none have been defined Since: JPA 2.1

JPA Method in jakarta.persistence.EntityGraph Subgraph addSubclassSubgraph (   Class  type ) Add additional attributes to this entity graph that correspond to attributes of subclasses of the entity type of this EntityGraph . Subclass subgraphs automatically include the specified

JPA Method in javax.persistence.EntityGraph void addAttributeNodes (    Attribute ... attribute ) Add one or more attribute nodes to the entity graph . Parameters: attribute - attribute Throws: IllegalStateException - if the EntityGraph has been statically defined Since: JPA 2.1

JPA Method in javax.persistence.EntityGraph void addAttributeNodes (   String... attributeName ) Add one or more attribute nodes to the entity graph . Parameters: attributeName - name of the attribute Throws: IllegalArgumentException - if the attribute is not an attribute

JPA Annotation Attribute in jakarta.persistence.NamedEntityGraph NamedSubgraph [] subclassSubgraphs default {} (Optional) A list of subgraphs that will add additional attributes for subclasses of the annotated entity class to the entity graph . Specified attributes from superclasses are included in subclasses. Since: JPA 2.1

JPA Annotation Attribute in jakarta.persistence.NamedEntityGraph NamedSubgraph [] subgraphs default {} (Optional) A list of subgraphs that are included in the entity graph . These are referenced by name from NamedAttributeNode definitions. Since: JPA 2.1

JPA Annotation Attribute in jakarta.persistence.NamedEntityGraph NamedAttributeNode [] attributeNodes default {} (Optional) A list of attributes of the entity that are included in this graph . Since: JPA 2.1

JPA Annotation Attribute in jakarta.persistence.NamedAttributeNode String value default null (Required) The name of the attribute that must be included in the graph . Since: JPA 2.1

(Required) The name of the attribute that must be included in the graph . Since: JPA 2.1

JPA Method in jakarta.persistence.EntityGraph String getName () Return the name of a named EntityGraph (an entity graph defined by means of the NamedEntityGraph annotation, XML descriptor element, or added by means of the EntityManagerFactory.addNamedEntityGraph method). Returns null if the EntityGraph is not a named EntityGraph . Since: JPA 2.1

us use to use the object graph stored in objectdb (and any methods in those objects) to produce values

than entity fetch graphs , too.       webel Dr Darren Kelly

has been modified. Still, you will have to manage the object IDs in order to merge a graph of objects that use

Dear Support, is there a way to compare two schemas or odb files? I try to compare two object graphs Thx wua Andreas Wurm This is currently not supported, but you may file a feature request  if you need this ability (describing what exactly you expect from this new feature, and how it should work). support Support

other objects. Apparently you refresh a large graph of objects. Here are some tips for improving

, tree, graph , then a lot of round trips occurs, the traffic is not the main factor, but the latency is a problem.     TIA gzdillon Lai Yang

the size of the eagerly fetched graphs of objects. support Support Thank you for the patch

load of the object graph . Without these classes the entire database may have to be loaded to memory

became available also in JPA 2.1 (as entity graphs ) but ObjectDB doesn't support it yet. It may probably be added

. It is less efficient, but ObjectDB should work also with no enhancement at all, in case you cannot enhance the complete graph of entity classes. support Support

; Our jvisualvm memory graphs show a steady climb of used heap as though some cache is not

while still being able to cross reference objects on both, i.e. distributed database/ graph of objects ? Kind Regards

: rbccm.felix.framework.ApplicationException: Error flushing graph container at rbccm.felix.objectdb ... (); throw new ApplicationException("Error flushing graph container", e); } finally { em.close(); } I've ... :\calculationservice\objectdb\dbs\workflow\uatsrtlonw342-WSAgent-1- Graphs .odb' I've uploaded

graphs stored in the db with old graphs from backup db. wua Andreas Wurm

\objectdb\dbs\workflow\uatsrtlonw242-WSAgent-2- Graphs .odb' (error 117) at com.objectdb.jpa.JpaQuery ... : Failed to read from file 'F:\calculationservice\objectdb\dbs\workflow\uatsrtlonw242-WSAgent-2- Graphs .odb

be released.  Below is the reference graph for them. Normally we would expect to see some service ... an ObjectDB issue. Try to break that large graph of objects so it will not be hold in memory by

, but we will have to check that nothing depends on the ID being null until the object graph is persisted. spiffy

more spikes than usual.  My server's graph is usually fairly flat before this update.