Examples of org.odmg.Transaction.commit()

org.odmg.Transaction.commit()
Commit and close the transaction. Calling commit commits to the database all persistent object modifications within the transaction and releases any locks held by the transaction. A persistent object modification is an update of any field of an existing persistent object, or an update or creation of a new named object in the database. If a persistent object modification results in a reference from an existing persistent object to a transient object, the transient object is moved to the database, and all references to it updated accordingly. Note that the act of moving a transient object to the database may create still more persistent references to transient objects, so its referents must be examined and moved as well. This process continues until the database contains no references to transient objects, a condition that is guaranteed as part of transaction commit. Committing a transaction does not remove from memory transient objects created during the transaction


            DCollection check = (DCollection) query.execute();


            assertEquals(results, check);


            tx.commit();
        }
                // close database
        finally
        {
            db.close();

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            cld.setTableName("ELVIS");
            broker.getDescriptorRepository().setClassDescriptor(cld);


            //broker will crash as metadata is corrupt
            a.addToStock(5);
            tx.commit();
            fail("Can commit tx with corrupt metadata");
        }
        catch (Throwable t)
        {
            //ignore

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        database.deletePersistent(pg1);
        database.deletePersistent(a2);
        database.deletePersistent(pg2);


        tx.checkpoint();
        tx.commit();
    }
}

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        storeObjects(tx_1, getNewODMGZoos(5));
        storeObjects(tx_1, getNewProjects(3));
        //store more
        storeObjects(tx_1, getNewODMGZoos(5));
        storeObjects(tx_1, getNewProjects(2));
        tx_1.commit();


        Transaction tx_2 = odmg_2.newTransaction();
        tx_2.begin();
        //store
        storeObjects(tx_2, getNewFarAways(9));

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        tx_2.begin();
        //store
        storeObjects(tx_2, getNewFarAways(9));
        //store more
        storeObjects(tx_2, getNewFarAways(11));
        tx_2.commit();


        int odmgZoosAfter = getDBObjectCountWithNewPB(((DatabaseImpl) db_1).getPBKey(), ODMGZoo.class);
        int projectsAfter = getDBObjectCountWithNewPB(((DatabaseImpl) db_1).getPBKey(), Project.class);
        int farAwaysAfter = getDBObjectCountWithNewPB(((DatabaseImpl) db_2).getPBKey(), FarAwayClass.class);
        int odmgZoosAfterOQL = getDBObjectCountViaOqlQueryUseNewTransaction(odmg_1, ODMGZoo.class);

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        tx_2.begin();
        //store
        storeObjects(tx_2, getNewFarAways(9));
        //store more
        storeObjects(tx_2, getNewFarAways(11));
        tx_2.commit();


        odmgZoosAfter = getDBObjectCountWithNewPB(((DatabaseImpl) db_1).getPBKey(), ODMGZoo.class);
        projectsAfter = getDBObjectCountWithNewPB(((DatabaseImpl) db_1).getPBKey(), Project.class);
        farAwaysAfter = getDBObjectCountWithNewPB(((DatabaseImpl) db_2).getPBKey(), FarAwayClass.class);
        odmgZoosAfterOQL = getDBObjectCountViaOqlQueryUseNewTransaction(odmg_1, ODMGZoo.class);

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    {
        Transaction tx_1 = odmg_1.newTransaction();
        tx_1.begin();
        deleteObjects(db_1, getAllObjects(odmg_1, ODMGZoo.class));
        deleteObjects(db_1, getAllObjects(odmg_1, Project.class));
        tx_1.commit();


        Transaction tx_2 = odmg_2.newTransaction();
        tx_2.begin();
        deleteObjects(db_2, getAllObjects(odmg_2, FarAwayClass.class));
        tx_2.commit();

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        tx_1.commit();


        Transaction tx_2 = odmg_2.newTransaction();
        tx_2.begin();
        deleteObjects(db_2, getAllObjects(odmg_2, FarAwayClass.class));
        tx_2.commit();


        int odmgZoosAfter = getDBObjectCountWithNewPB(((DatabaseImpl) db_1).getPBKey(), ODMGZoo.class);
        int projectsAfter = getDBObjectCountWithNewPB(((DatabaseImpl) db_1).getPBKey(), Project.class);
        int farAwaysAfter = getDBObjectCountWithNewPB(((DatabaseImpl) db_2).getPBKey(), FarAwayClass.class);
        //

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        Transaction tx = ojb.newTransaction();
        tx.begin();
        OQLQuery query = ojb.newOQLQuery();
        query.create("select allProjects from " + target.getName());
        List list = (List) query.execute();
        tx.commit();
        return list.size();
    }


    protected int getDBObjectCountViaOqlQuery(Implementation ojb, Class target) throws Exception
    {

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            result = (List) query.execute();
            before = result.size();


            database.makePersistent(child);


            tx.commit();


            tx.begin();
            query = odmg.newOQLQuery();
            query.create(strQuery);
            result = (List) query.execute();

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