About Data Source

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JPA Doc
7

getNonJtaDataSource()

-JTA-enabled data source to be used by the persistence provider for accessing data outside a JTA transaction. The data source corresponds to the named non-jta-data-source element in the persistence.xml file or provided at deployment or by the container. Returns: the non-JTA-enabled data source
Manual
6

Server Configuration

: <data path="$objectdb/db-files ... limit. The <data> element <data path="$objectdb/db-files" /> The <data> element has one attribute ... prefix, if specified (as demonstrated above), represents the ObjectDB home directory. The data path
Manual
6

JPA Persistable Types

The term persistable types refers to data types that can be used in storing data in the database ... , Mapped superclasses, Embeddable classes. Simple Java data types: Primitive types, Wrappers, String ... persistent fields would cause data duplication in the database. Entity Classes An entity class
JPA Doc
6

getJtaDataSource()

-enabled data source to be used by the persistence provider. The data source corresponds to the jta-data-source element in the persistence.xml file or is provided at deployment or by the container. Returns: the JTA-enabled data source to be used by the persistence provider Since: JPA 1.0
Issue
5

objectdb-2.6.9_06: Extended Persistence Context fails: 'Attempt to begin a new transaction when a transaction is active'

.proxy.$Proxy196.buildProject(Unknown Source) at com.greensoft.objectdb.test.mini.ejb.__EJB31_Generated__ExtProjectBuilder__Intf____Bean__.buildProject(Unknown Source) at com.greensoft.objectdb.test ... builds a slightly more complex Project with an additional Source entity and a "model" and "child
Tutorial
5

Step 6: Design a BIRT Report Table

. Set the column number to 2, number of details to 1, select the data set (e.g. Points by X) in the third field and click OK. Fill the table with data by dragging the x and y columns from the data set in the [Data Explorer] window (under the data set node) and dropping them on the second table row
JDO Doc
5

javax.jdo.spi.PersistenceCapable

that receives the field values. oid - the ObjectId source of the copy. Since: JDO 1.0 void ... , Object oid) Copy fields from an outside source to the key fields in the ObjectId. Copy fields from an outside source to the key fields in the ObjectId. This method is generated in the PersistenceCapable
Tutorial
5

Step 2: Entity Class and Persistence Unit

in the database was created in the project (under Source Packages > guest). Use copy and paste to replace the new source file content with the following code: package guest; import java.io ... a text editor (by right clicking and selecting Edit or by double click and then moving to the Source
Tutorial
5

Step 2: Entity Class and Persistence Unit

the project node (in the [Package Explorer] window), select New > Source Folder, enter src/main/java ... the new source directory node (in the [Package Explorer] window) and selecting New > Class. Enter guest as ... : src/main/java > guest). Use copy and paste to replace the new source file content
Tutorial
5

Step 2: Entity Class and Persistence Unit

the database was created in the project (under Source Packages > guest). Use copy and paste to replace the new source file content with the following code: package guest; import java.io.Serializable ... that was added to the project (under Other Sources > src/main/resources > META-INF). Open