Teilschemaexport im Ruhezustand

Question

Ruhezustand Version 3.6

Ich versuche, einen Teilschemaexport mit hbm2dll SchemaExport durchzuführen.Daher greife ich auf die aktuelle Ruhezustandskonfiguration zu, rufe den PersistentClass ab, für den die Tabelle generiert werden soll, und erstelle eine neue Konfiguration wie folgt:

ClassMetadata classMetadata = sessionFactory.getClassMetadata(SchemaVersion.class);
String entityName = classMetadata.getEntityName();
PersistentClass persistentClass = origCfg.getClassMapping(entityName);
final Configuration cfg = new Configuration();
Properties properties = origCfg.getProperties();
cfg.setProperties(properties);
cfg.createMappings().addClass(persistentClass);
cfg.buildMappings();
Iterator<PersistentClass> mappings = cfg.getClassMappings();
System.out.println("=========== MAPPINGS ===================");
while (mappings.hasNext()) {
    PersistentClass pClass = mappings.next();
    System.out.println(pClass.getClassName());
    System.out.println(pClass.getTable().getName());
}
System.out.println("=========== END MAPPINGS ===============");
Session session = sessionFactory.openSession();
session.doWork(new Work() {
    public void execute(Connection connection) throws SQLException {
        new SchemaExport(cfg, connection).create(true, true);
    }
});
session.close();

Wie aus dem Protokoll (unten) ersichtlich, scheint der Schemaexport abgeschlossen zu sein, aber es sieht so aus, als würde die programmgesteuert hinzugefügte Zuordnung nicht übernommen, da die Tabelle nicht erstellt wird.

=========== MAPPINGS ===================
eu.codecamp.utils.lib.persistence.schema.SchemaVersion
fx_schema_version
=========== END MAPPINGS ===============
DEBUG: opened session at timestamp: 5387886841208832 - 2011-09-07 15:27:40,842 [org.hibernate.impl.SessionImpl]
DEBUG: opening JDBC connection - 2011-09-07 15:27:40,843 [org.hibernate.jdbc.ConnectionManager]
INFO: Using dialect: org.hibernate.dialect.MySQLInnoDBDialect - 2011-09-07 15:27:40,885 [org.hibernate.dialect.Dialect]
DEBUG: Processing hbm.xml files - 2011-09-07 15:27:40,885 [org.hibernate.cfg.Configuration]
DEBUG: Process annotated classes - 2011-09-07 15:27:40,885 [org.hibernate.cfg.Configuration]
DEBUG: processing fk mappings (*ToOne and JoinedSubclass) - 2011-09-07 15:27:40,885 [org.hibernate.cfg.Configuration]
DEBUG: processing extends queue - 2011-09-07 15:27:40,885 [org.hibernate.cfg.Configuration]
DEBUG: processing extends queue - 2011-09-07 15:27:40,885 [org.hibernate.cfg.Configuration]
DEBUG: processing collection mappings - 2011-09-07 15:27:40,885 [org.hibernate.cfg.Configuration]
DEBUG: processing native query and ResultSetMapping mappings - 2011-09-07 15:27:40,885 [org.hibernate.cfg.Configuration]
DEBUG: processing association property references - 2011-09-07 15:27:40,885 [org.hibernate.cfg.Configuration]
DEBUG: processing foreign key constraints - 2011-09-07 15:27:40,885 [org.hibernate.cfg.Configuration]
DEBUG: Setting dialect [org.hibernate.dialect.MySQLInnoDBDialect] - 2011-09-07 15:27:40,887 [org.hibernate.id.factory.DefaultIdentifierGeneratorFactory]
DEBUG: Processing hbm.xml files - 2011-09-07 15:27:40,887 [org.hibernate.cfg.Configuration]
DEBUG: Process annotated classes - 2011-09-07 15:27:40,887 [org.hibernate.cfg.Configuration]
DEBUG: processing fk mappings (*ToOne and JoinedSubclass) - 2011-09-07 15:27:40,887 [org.hibernate.cfg.Configuration]
DEBUG: processing extends queue - 2011-09-07 15:27:40,887 [org.hibernate.cfg.Configuration]
DEBUG: processing extends queue - 2011-09-07 15:27:40,887 [org.hibernate.cfg.Configuration]
DEBUG: processing collection mappings - 2011-09-07 15:27:40,887 [org.hibernate.cfg.Configuration]
DEBUG: processing native query and ResultSetMapping mappings - 2011-09-07 15:27:40,887 [org.hibernate.cfg.Configuration]
DEBUG: processing association property references - 2011-09-07 15:27:40,887 [org.hibernate.cfg.Configuration]
DEBUG: processing foreign key constraints - 2011-09-07 15:27:40,887 [org.hibernate.cfg.Configuration]
DEBUG: Setting dialect [org.hibernate.dialect.MySQLInnoDBDialect] - 2011-09-07 15:27:40,889 [org.hibernate.id.factory.DefaultIdentifierGeneratorFactory]
INFO: Running hbm2ddl schema export - 2011-09-07 15:27:40,892 [org.hibernate.tool.hbm2ddl.SchemaExport]
DEBUG: import file not found: /import.sql - 2011-09-07 15:27:40,893 [org.hibernate.tool.hbm2ddl.SchemaExport]
INFO: exporting generated schema to database - 2011-09-07 15:27:40,893 [org.hibernate.tool.hbm2ddl.SchemaExport]
INFO: schema export complete - 2011-09-07 15:27:40,893 [org.hibernate.tool.hbm2ddl.SchemaExport]
DEBUG: releasing JDBC connection [ (open PreparedStatements: 0, globally: 0) (open ResultSets: 0, globally: 0)] - 2011-09-07 15:27:40,893 [org.hibernate.jdbc.ConnectionManager]
DEBUG: transaction completed on session with on_close connection release mode; be sure to close the session to release JDBC resources! - 2011-09-07 15:27:40,894 [org.hibernate.jdbc.ConnectionManager]

Answer 1

OK, hier ist, was ich hinzugefügt habe, damit es funktioniert:

Table origTable = persistentClass.getTable();
String schema = origTable.getSchema();
String catalog = origTable.getCatalog();
String name = origTable.getName();
mappings.addTable(schema, catalog, name, origTable.getSubselect(),
        origTable.isAbstract());
Table table = mappings.getTable(schema, catalog, name);
Iterator<Column> columnIter = origTable.getColumnIterator();
while (columnIter.hasNext()) {
    Column column = columnIter.next();
    table.addColumn(column);
}