I have JPA2 with EclipseLink 2.4, and I’m trying to implement an in-memory database using HSQLDB. I have been able to create a file implementation of the hsqldb using
jdbc:hsqldb:file:./databases/test;shutdown=true;files_readonly=true
But when I try to use jdbc:hsqldb:mem:tableName, I get the following message:
Stacktrace:
javax.persistence.PersistenceException: Exception [EclipseLink-4002] (Eclipse
Persistence Services - 2.4.0.v20120608-r11652):
org.eclipse.persistence.exceptions.DatabaseException
Internal Exception: java.sql.SQLSyntaxErrorException: user lacks privilege or object
not found: EFFECTIVITY
Error Code: -5501
Call: INSERT INTO EFFECTIVITY (HULL) VALUES (?)
bind => [1 parameter bound]
Query: InsertObjectQuery(101)
at org.eclipse.persistence.internal.jpa.EntityManagerImpl.flush
(EntityManagerImpl.java:804)
at com.gdeb.touchtable.db.TestJPAEntities.testTTTouch(TestJPAEntities.java:93)
..............
Caused by: org.hsqldb.HsqlException: user lacks privilege or object not found:
EFFECTIVITY
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.error.Error.error(Unknown Source)
at org.hsqldb.SchemaManager.getTable(Unknown Source)
at org.hsqldb.ParserDQL.readTableName(Unknown Source)
at org.hsqldb.ParserDQL.readRangeVariableForDataChange(Unknown Source)
at org.hsqldb.ParserDML.compileInsertStatement(Unknown Source)
at org.hsqldb.ParserCommand.compilePart(Unknown Source)
at org.hsqldb.ParserCommand.compileStatement(Unknown Source)
at org.hsqldb.Session.compileStatement(Unknown Source)
at org.hsqldb.StatementManager.compile(Unknown Source)
at org.hsqldb.Session.execute(Unknown Source)
... 63 more
From what I read, the data model should be generated automagically, but I have only seen examples with Hibernate. Is there a way to link the JPA data-model and create it using the memory mode of HSQLDB?
If what is missing are the tables, you need to set the eclipselink.ddl-generation property with a value of “create-tables” to have Eclipselink create them for you. An example is posted here: http://wiki.eclipse.org/EclipseLink/Examples/JPA/DDL