ObjectDB Database Search

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Setting temp directory location in ObjectDB

.conf file. I am using JDO and setting the persistenceManager as follow properties.setProperty("javax ... , how can i set the temp directory using my java class  e.g  setting through  ... directory where fileName.odb is located. But i want to set the tempority folder location

Understanding Database max-threads objectdb.conf Settings Option

(attached to forum thread mentioned above), I set  Database max-threads.  In the documentation, it was not completely clear to me if this setting controlled how many internal threads ObjectDB uses, or if ObjectDB is doing some sort of queue/locking whose depth is determined by this setting

Can a Set be a foreign key?

a variable (private Set cellHeldCharacters;) which holds the IDs of the characters within the cell ... is it illegal/unrecommended to do it for a Set ? For a better picture, I have: @Entity public class Character ... ;   private double cellSize;     private Set cellHeldCharacters

"Failed to serialize instance" of Set problem

, mappedBy="parent") private Set abstractContainers = com.google.common.collect. Sets ... of com.google.common.collect. Sets $SetFromMap - field xxx.AbstractContainer.abstractContainers at com ... Vladimir Tsichevski Maybe the set contains objects that cannot be serialized. Check the full stack trace

JPA query of a Set of terms

. ie. Set terms;     // the set is filled with SearchTerm objects ...   any term should be simpler: Set terms; // the set is filled with SearchTerm objects

JPA and handling large data sets

. But exporting large binary data sets is very slow. To avoid memory problems the binary data type is read step ... data sets the way is slow. We have an own entity for storing binary data (pictures, documents). Hint ... , which will retrieve only objects with larger primary key as the next set of objects. Usually the problem

best practice for configuration settings

setting ? synchronized there is no documentation about this setting , what does it do/mean ? hgzwicker Hans ... settings under the real conditions. If synchronized is true requests to the database are synchronized

Safe Settings

Hi, I am trying to set up ObjectDb in a safe way that allows turning the machine ... with both configuration settings with the debugger and I put a breakpoint in FileDescriptor#sync(). It never got triggered with no setting that I could come up with. How come? Thanks in advance

@ElementCollection Set is emptied sometimes

already. ObjectDB seems to clear some fields that are @ElementCollection Set of my objects ... is emptied, but not null. So, my @ElementCollection Set fields become empty sometimes during development ... it. Initially, I was not using @ElementCollection on my Set fields from User class. I've seen

ManyToMany Set is null

")     private Set contracts = new HashSet (); ---------- @Entity public class Contract ... = "contracts")     private Set persons = new HashSet (); [...] itsme Martin Petzold

-XMX settings recommendation

The default is 256M  what is the recommended settings based on?  It is the size of the DB? number of connections?  If the DB has over 200GB of data and max connection of 400 then will I need to make this settings higher?  Thanks. Trianglehead Json Error There is no magic

Fetch Set from DB only works on debug mode

I have a class A, that contains a LinkedHashSet of  another class named B. When I try to fetch that hash set , it returns a null pointer. BUT, when I run the program in debug mode, it works fine ... the EntityManager . In debug mode, by examining the set you load the data before closing the  EntityManager

Objectdb Server Mode set up with glassfish

Hi I'm new to Java, glassfish and objectdb, so please forgive my ignorance. I have a glassfish server working with the embeded mode of objectdb. I now want to set up objectdb in server mode. I ... my project ? How do I configure my persitence.xml file ? Do I need to set up something in Glassfish

NullPointerException while setting a new property value

to entities from 2 threads: 1. Creating a list of entities, default values are set from imported file 2 ... and re- setting some properties to entities from the collection. NPE is thrown at some point

Is there a way to set EAGER fetch on all "ToMany" collection relationships

Given that the default seems to be FetchType.LAZY for all collections @OneToMany and @ManyToMany. Such as a configuration option. Instead of having to explicitly set fetch in annotation code in every relationship. webel Dr Darren Kelly No. There is no such configuration option, since having EAGER

Set timeout for BatchQueryItr

( unknown source ) xirt Sylvain You can set a query execution timeout as a query hint . The many

UPDATE query to set a new field after schema change

I've added a new property/field to one of my objects and want to set the value of this (boolean) property to false for all existing entities in the DB. I tried to execute an update statement with the Explorer tool. The statement ends and tells me that 1000 entities have been updated. I then save

Global way to set Lazy-loading fetch functionality for all the fields

if neither objectdb nor JPA offers it). ouba64 Ouba Mahamane Lazy / Eager can only be set locally

client server set up and load

is less affected by number of users and more by the actual activity, how indexes are set , etc. support Support

Unexpected internal exception during set field of an Embeddable to null

that. But the setting of "original value" for Class IntegerSignalValueImpl works once on a attched

Unable to update a OneToMany Set

Unable to update a OneToMany Set

setting activation code in persistence.xml or env file or system properties

setting activation code in persistence.xml or env file or system properties

Iterating over large result set

Iterating over large result set

com.objectdb.o._PersistenceException: Failed to locate set method for field property using reflection

. set (platformConnector); } ... } I get an exception thrown  when trying to create an entity ... ._PersistenceException: Failed to locate set method for field property domain.PlatformTicker.platformConnector using ... ObjectDB's. However the error message Failed to locate set method for field property... is misleading

jakarta.persistence.criteria.CriteriaUpdate

Set getParameters () Return the parameters of the query. Returns empty set if there are no parameters. Modifications to the set do not affect the query. Inherited from CommonAbstractCriteria Returns ... Persistence (JPA) 1.0 CriteriaUpdate set ( SingularAttribute attribute , X value ) Update the value

jakarta.persistence.criteria.CriteriaQuery

. Since: Jakarta Persistence (JPA) 1.0 Set getParameters () Return the parameters of the query. Returns empty set if there are no parameters. Modifications to the set do not affect the query. Inherited from ... . Since: Jakarta Persistence (JPA) 1.0 Set getRoots () Return the query roots. These are the roots

Enum fields are set to null and embeddable enum class does not show in explorer

I switched to version 2.8.2 and now it seems that my enum types are not recognized and the field in the related objects is set to null. This is highly critical because it will cause data loss! The enum type is also not listed in the explorer. I am talking about an enum class, which implements

ObjectDb Doctor : Failed to locate set method for field property com.test.Video$VideoId.sourceId using reflection (error 316)

Hello everyone ! I have just launched the ObjectDb Doctor for testing purposes. But while inspecting my base, the Doctor throws me a strange error : [ObjectDB 2.4.6] Invalid ID class com.test.Video$VideoId for type com.test.Video (Failed to locate set method for field property com.test.Video

Object creation in the Explorer requires automatically set primary keys

The feature of creating new objects in the Explorer is currently supported only for entity classes that have primary keys that are set automatically. support Support

UPDATE query cannot set a new field after schema change

I've added a new property/field to one of my objects and want to set the value of this (boolean) property to false for all existing entities in the DB. I tried to execute an update statement with the Explorer tool. The statement ends and tells me that 1000 entities have been updated. I then save

After using the enhancer, Lazy loaded collections are no longer loading. They are set as null

After using the enhancer, Lazy loaded collections are no longer loading. They are set as null

jakarta.persistence.ManyToMany

: @ManyToMany @JoinTable(name = "CUST_PHONES") public Set getPhones() { return phones; } // In PhoneNumber class: @ManyToMany(mappedBy = "phones") public Set getCustomers() { return customers; } Example 2: // In Customer class: @ManyToMany(targetEntity = com.acme.PhoneNumber.class) public Set

jakarta.persistence.SqlResultSetMapping

Interfaces: Annotation Target: Type Specifies a mapping of the columns of a result set of a native SQL ... Since: Jakarta Persistence (JPA) 1.0 Annotation Elements String name The name given to the result set ... . Since: Jakarta Persistence (JPA) 1.0 EntityResult[] entities Specifies the result set mapping to entities

jakarta.persistence.PersistenceConfiguration

.persistence.schema-generation.scripts.action" is set . Since: Jakarta Persistence (JPA) 1.0 SCHEMAGEN ... when "jakarta.persistence.schema-generation.scripts.action" is set . Since: Jakarta Persistence (JPA) 1 ... . Since: Jakarta Persistence (JPA) 1.0 PersistenceConfiguration properties ( Map properties ) Set multiple

jakarta.persistence.FlushModeType

within a transaction, if AUTO is set on the Query or TypedQuery object, or if the flush mode setting for the persistence context is AUTO (the default) and a flush mode setting has not been specified for the Query or ... , if COMMIT is set , the effect of updates made to entities in the persistence context on queries

jakarta.persistence.EntityManagerFactory

of EntityManager . A persistence unit defines the set of all classes that are related or grouped by ... . This includes configuration information such as max results, hints, flush mode, lock mode, result set ... , information that can be set by means of the query APIs can be overridden. Information

jakarta.persistence.metamodel.SetAttribute

: - The type the represented Set belongs to - The element type of the represented Set Super Interfaces: PluralAttribute , Attribute , Bindable Instances of the type SetAttribute represent persistent Set ... a Collection , Set , List , or Map ). Inherited from Attribute Returns: boolean indicating

jakarta.persistence.metamodel.Metamodel

. Since: Jakarta Persistence (JPA) 1.0 Set getEmbeddables () Return the metamodel embeddable types. Returns am empty set if there are no embeddable types. Returns: the metamodel embeddable types. Since: Jakarta Persistence (JPA) 1.0 Set getEntities () Return the metamodel entity types. Returns

jakarta.persistence.StoredProcedureQuery.getSingleResult()

getSingleResult() Retrieve a single result from the next result set . The provider will call execute on the query if needed. A REF_CURSOR result set , if any, is retrieved in the order the REF_CURSOR parameter was registered with the query. Returns: the result or null if the next item is not a result set . Throws

jakarta.persistence.StoredProcedureQuery.getSingleResultOrNull()

getSingleResultOrNull() Retrieve a single result from the next result set . The provider will call execute on the query if needed. A REF_CURSOR result set , if any, is retrieved in the order the REF_CURSOR parameter was registered with the query. Returns: the result or null if the next item is not a result set or

jakarta.persistence.criteria.Nulls

Specifies the precedence of null values within query result sets . See Also: CriteriaBuilder::asc ... Constants FIRST Null values occur at the beginning of the result set . Since: Jakarta Persistence (JPA) 1.0 LAST Null values occur at the end of the result set . Since: Jakarta Persistence (JPA) 1.0

jakarta.persistence.criteria.CommonAbstractCriteria

(JPA) 2.1 Public Instance Methods Set getParameters () Return the parameters of the query. Returns empty set if there are no parameters. Modifications to the set do not affect the query. Returns

jakarta.persistence.criteria.Fetch

attribute for the join. Since: Jakarta Persistence (JPA) 1.0 Set getFetches () Return the fetch joins that have been made from this type. Returns empty set if no fetch joins have been made from this type. Modifications to the set do not affect the query. Inherited from FetchParent Returns: fetch

jakarta.persistence.criteria.CriteriaDelete

corresponding to the given entity. Since: Jakarta Persistence (JPA) 1.0 Set getParameters () Return the parameters of the query. Returns empty set if there are no parameters. Modifications to the set

jakarta.persistence.criteria.FetchParent

Persistence (JPA) 1.0 Set getFetches () Return the fetch joins that have been made from this type. Returns empty set if no fetch joins have been made from this type. Modifications to the set do not affect

jakarta.persistence.OneToMany

Set getOrders() { return orders; } // In Order class: @ManyToOne @JoinColumn(name = "CUST_ID ... = ALL, mappedBy = "customer") public Set getOrders() { return orders; } // In Order class ... for Order public Set getOrders() { return orders; } Since: Jakarta Persistence (JPA) 1.0 Annotation Elements

jakarta.persistence.StoredProcedureQuery.getResultList()

() Retrieve the list of results from the next result set . The provider will call execute on the query if needed. A REF_CURSOR result set , if any, is retrieved in the order the REF_CURSOR parameter was registered with the query. Returns: a list of the results or null is the next item is not a result set

jakarta.persistence.metamodel.ManagedType.getPluralAttributes()

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType Set getPluralAttributes() Return all multi-valued attributes (Collection-, Set -, List-, and Map-valued attributes) of the managed type. Returns empty set if the managed type has no multi-valued attributes. Returns

jakarta.persistence.metamodel.ManagedType.getDeclaredPluralAttributes()

Jakarta Persistence (JPA) Method in jakarta.persistence.metamodel.ManagedType Set getDeclaredPluralAttributes() Return all multi-valued attributes (Collection-, Set -, List-, and Map-valued attributes) declared by the managed type. Returns empty set if the managed type has no declared multivalued

jakarta.persistence.criteria.AbstractQuery.getRoots()

Jakarta Persistence (JPA) Method in jakarta.persistence.criteria.AbstractQuery Set getRoots ... itself, including any subquery roots defined as a result of correlation. Returns an empty set if no roots have been defined. Modifications to the set do not affect the query. Returns: the set of query roots. Since: Jakarta Persistence (JPA) 1.0