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JPA Doc
16

PluralAttribute.CollectionType.SET

Enum Constant javax.persistence.metamodel.PluralAttribute.CollectionType SET Set-valued attribute Since: JPA 2.0
Manual
16

Locking in JPA

update collisions resulting from simultaneous updates to the same data by two concurrent users. Locking ... - which represents an exclusive lock. Setting a Pessimistic Lock An entity object can be locked ... can be set to allow waiting for a pessimistic lock for a specified number of milliseconds. The hint
JDO Doc
16

JDOPermission.SET_STATE_MANAGER

Static Field javax.jdo.spi.JDOPermission JDOPermission SET_STATE_MANAGER An instance of JDOPermission to be used for setStateManager permission checking. Since: JDO 1.0
Manual
15

Comparison in JPQL and Criteria API

ObjectDB supports two sets of comparison operators, as shown in the following table:   Set 1 - JPQL / SQL Set 2 - Java / JDO Less Than < < Greater Than > > Less Than or Equal To <= <= Greater Than or Equal To >= >= Equal = == Not Equal <> != The two sets differ in the Equal and the Not Equal
Manual
15

Database Replication and Clustering

database. Setting a Master Database A master ObjectDB database is an ordinary database ... , but no other preparations or settings are required. Setting Slave Databases Setting slave databases is very easy ... the configuration:          <data path="$objectdb/db
Manual
15

Chapter 6 - Configuration

setting the "objectdb.home" system property: System.setProperty("objectdb.home", "/odb"); // new $objectdb As with any other system property it can also be set as an argument to the JVM ... file is loaded from $objectdb/objectdb.conf. You can specify an alternative path by setting
Issue
14

Best practise loading big data

is the main data provider within our solution. In the past we often discovered performance problems when it came to transactions with lots of entities. We have a scenario in which we need efficient data ... we access the data block by block - in each block step by step and in each step value by value
Manual
14

SELECT clause (JPQL / Criteria API)

query API provides several ways for setting the SELECT clause. Single Selection Setting a single ... .get("currency")).distinct(true); The select method takes one argument of type Selection and sets it as the SELECT clause content (overriding previously set SELECT content if any). Every valid criteria API
Manual
14

SSL Configuration

The configuration element specifies Secure Sockets Layer (SSL) settings for secure ... has to be installed on the server machine. Setting the Configuration set to true. Every keystore / truststore file
Forum
14

Wrong data stored in time only fields

This may be related to the fix for the problem described in this thread: Wrong data stored in date ... . Except we are using ObjectDB 2.6.4_08, the system time zone is set to EST and both the OS and JVM are using the 2015g time zone data. While we cannot see a problem with date only fields (more testing