ObjectDB Database Search

. One way to achive this could be retrieving one object at a time and invoke the method (using " retrieval ... entities of some type? You have to retrieve the entity objects and then run the method on each object ... . support Support I see. I'll  retrieve the entity objects and then run the method on each object, as you suggested. Thank you. Yotam Yotam Boaz

. However, after transaction.begin ... persist(p) .. commit of a new object, my client program can no longer retrieve the old ... explorer on the server, my client program can retrieve all the records (no program restart or ... Ken If you could retrieve old objects but not the recently stored objects then this could be a cache

statement. Works! testUpdate Retrieve statement from database, retrieve some element from database, create ... we can see that the new component has been saved but not attached to the statement. refresh Retrieve statement

when the object is retrieved . support Support Hello, thank you for your reply. I have added some code to re- retrieve the document entity in the initial call and all works fine. The Reading entities ... the Document from the DB with a new EntityManager (or cleared one) should re- retrieve the original

retrieval of an object is faster when its exact type is known. Following your request we added a new ... ObjectDB: System.setProperty("objectdb.temp.extended-ref- retrieval ", "true");      ... is enabled retrieval of objects by a reference accepts the expected type as well as its subclasses

collection. ObjectDB surely has some idea of the sizes of objects that it persists and retrieves , and so should be able to fail safely if it finds too many objects being retrieved to fit into memory ... understand that JPA bulk delete doesn't involve any object retrieval , whereas perhaps JDO deletion does

is done on retrieval . This way the values of Date and Time instances are represented in the database in ... time) when retrieved from the database. Timestamp is different, since it represents a point in time ... when it is stored or retrieved . Apparently in your test case there is a mix between types. The entity

(which represent database objects). Therefore, if an entity object is retrieved by one EntityManager ... is retrieved by A. If the collection is owned by User (i.e. not mapped by, as you wrote), then it is part of the User object, and will be retrieved with the User instance before B changes the list

of a model glider. I decided to use objectdb as a way to persist the values for later retrieval ... running the system through eclipse. The full retrieval is not yet implemented, I concentrated on understanding the basics before working out how to effeciently commit and retrieve the main data. I'm

.createEntityManager(); create(em); retrieve (em); deleteAndUpdate(em); // close connection to db em.close ... is almost the same as the first; it only calls the retrieve method, no data is added. The package name is 'com ... .ClassCastException The database is fine but the application tries to cast the retrieve object of the old class

that satisfy: (this.receiver==:r). [Step 2] Retrieve fields in NmeaBatch (this) instances. [Step 3] Order ... The second query is slow because of the need to retrieve timeReceived value for a lot of objects ... with the new index with no need for further data retrieval . Another option that can be checked is running the query with lazy fetch . support Support

mosi0815 Ralph Moser Hi again, I think I just found out why this happens. Spring Data is retrieving ... for retrieving the meta model you access also a local embedded database. If not, we will try to reproduce it by ... the Retrieving Metamodel without Connection feature (which was implemented following your request two years ago

should restrict retrieval of data to the relevant tenants. support Support Thanks for the answer and the link ... to go could be to move from a Singleton Bean to a Prototype Bean and retrieve it by name or by the other means Spring Core gives for retrieving beans. Once you have several databases you need to manage

can understand that reading is a complex task, because you first have to lookup and then retrieve the object ... to retrieve objects is by the key (or ID). Maybe ObjectDB is not the best option if I want ... retrieval and reading operations (see this comparison ). But obviously a HashMap in memory is faster

entity objects in the database using an UPDATE query may be slightly more efficient than retrieving ... TypedQuerys. I just realized that the data retrieving up to date  if I do not use the generic ... , the problem is with the exact way in which data is retrieved later. Only with a complete runnable test

), you can use JPA to retrieve entity objects from ObjectDB and then store them in the other data store ... have to write java module with JPA to retrieve entity and then using some kind of ORM or direct JDBC persist

the database intentionally. It depends. On retrieval - inverse (mapped by) collections ... is required in order to retrieve the content of a collection. support Support

transaction. I used to retrieve my stock object by a JPA EJB. However, after retrieval

a common feature in database viewers. Any idea how this can be done technically without retrieving ... a very large array in the debugger). This will limit retrieval to open branches in the tree. 3

.getCache().contains(entityClass, primaryKey) , so you can persist or retrieve an entity object ... it prepares all the results, regardless the cache. So the cache is mainly useful for retrieval by

to ObjectDB you will have to write your own conversion program. If you use JPA with MySQL you can retrieve old data from MySQL using JPA as entity objects, detach the retrieved entity objects and then persist

access (rather than a complete scan) you can retrieve objects with random primary keys ... with every index (i.e. retrieve object by indexed values), but for a simple test you can also have a database

other JPA implementations to retrieve data from RDBMS tables and then use the same JPA entity classes ... but you can use other JPA implementations to retrieve data from RDBMS tables and then use the same JPA entity

program that retrieves all the relevant containing entity objects, makes them dirty and persists ... the schema and wrote the program which retrieves the containing entities, made them dirty

, all the objects have to be retrieved . For diagnosis please try the same query without the ORDER BY clause ... managed to figure out: how to get the total number of object in a database without retrieving

it and then retrieve each of the object one by one. The object is key by Long. Here is the jmap at time1: num ... and other HashMap. Here is the code that retrieves the data. I'm pretty sure I'm not holding objects

the Child instance is retrieved . Now it has null in the prn field . The output shall look like: Parent ... . Anyway, please try build 2.4.7_08. Your test should pass with ID set across the hierarchy, but the retrieval

requests of Address instances. For existing persons - retrieval of the  addressSet ... the cost of these operations, and mainly the addressSet retrieval when the database is not empty

see {something, null, null, and allways nulls}, but when i retrieve that field i ... (if it is actually referring and not copying information of A) when retrieved through repository

, if you really need it, and still improve efficiency (except when retrieving the objects by the UID, as retrieval by index is slightly slower then by PK). support Support

of the object graph have already been retrieved , they won't be retrieved for the detached object. I'm not

may be slightly more efficient than retrieving entity objects and then updating them, but it should be used ... query and before retrieval or a specific object using refresh , and disable the 2nd level cache

, this change will enable persisting collections of maps of non standard types, but when retrieved ... collections of maps of non standard types, but when retrieved , other collection and map types will be used

when it is retrieved from the database? What would be the best way to achieve ... automatically when the object is retrieved (or refreshed) from the database after commit or flush

How do you initialize the categories of a new product? You should retrieve references to existing Category ... choicebox). if a prodcut is retrieved from webservice then the categories are created but category

I do basic storage and retrieval of Record class. When I stress the retrieval /storage with Apache JMeter sometimes (at some requests) I get this exception.   [ObjectDB 2.5.0] javax.persistence.OptimisticLockException Optimistic lock failed for object entities.Record#'1405/838/2011/121

terms provided. Is this possible? Thanks, Carl FastModel Ben Schreiber Retrieving pages that contain ... ); I am afraid that retrieving pages that contain all the terms requires building a dynamic query

is too slow and inefficient. Thanks. lo Hoel Possibly you may be able to retrieve that information using ... in case anyone need to achieve the same. This call will retrieve a list of 3 dimensional Object array

BTC EmbeddedSystems The OSGi test is based on: Retrieving an object from the database. Modifying ... the object rather than to the EntityManager that is created later to retrieve the object. Anyway, thank

are created and persisted again. The ResolverMapping entities are retrieved from database by a query ... .remove(obj). Directly after remove we try to retrieve again the ResolverMapping entities from ... may be slightly more efficient than retrieving entity objects and then updating them, but it should be used

);          retrieve (emf);         emf.close ... ();     }     private static void retrieve (EntityManagerFactory emf) {   ... . retrieve (F2828.java:26)     at com.objectdb.test.bug.forum.F2828.main(F2828.java:12) In

. It seems to be related to an an attempt to retrieve an entity object that is part of the query results ... to retrieve an object in a query result, which was not found in the database. i.e. it was in the database ... , but was not closed after the exception. The exception at #1 was thrown during an attempt to retrieve

indicates that parts of objects  have not been found during retrieval (in objects with IDs 9 ... -Georg Zwicker Yes, and also simultaneous retrieval (as the log errors are generated during retrieval

so apologies for that. I've attached another go. The main difference here is that I'm using "find" to retrieve the objects from the database. If you run the test as-is the objects are retrieved and the nested

that satisfy:    (o.classIdentifier='(OP)'). [Step 1b] Retrieve fields in ObjectNode (o) instances ... ] Retrieve fields in ObjectNode (o) instances. [Step 2c] Filter the results of step 2b retaining

when an entity object is retrieved using  find  with a PK of a different type (e.g. Integer instead of Long ) and then updated. Fixed retrieval with pessimistic lock to bypass cache and to force refresh.

pointed this "Find is very efficient in retrieving a single entity object but less efficient ... .objectdb.com/forum/359 gzdillon Lai Yang You'd pointed this "Find is very efficient in retrieving

its up to date content to a snapshot of the object when retrieved from the database. In most cases ... are retrieved from the same EntityManager object as mixing objects across EntityManager instances

/ retrieve EITHER: the transparent activation is failing AND/OR: entities are becoming detached. http://www ... ". They are initialized and stored into the database, and on retrieval the JPA provider is obliged

on retrieved objects. ObjectDB generates synthetic classes automatically when persistable classes ... from the Metamodel API to access fields of retrieved objects, etc. support Support Thanks