Package org.apache.cayenne.access

Examples of org.apache.cayenne.access.DataContext

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        deleteTestData();
    }

    public void testLongPk() throws Exception {

        DataContext context = createDataContext();
        Artist a = context.newObject(Artist.class);
        a.setArtistName("XXX");

        updateId(context, a.getObjectId());

        Object pk = a.getObjectId().getReplacementIdMap().get(Artist.ARTIST_ID_PK_COLUMN);
        assertNotNull(pk);

        assertEquals(pk, Cayenne.longPKForObject(a));

        context.commitChanges();

        Object pkAfterCommit = a.getObjectId().getIdSnapshot().get(
                Artist.ARTIST_ID_PK_COLUMN);
        assertEquals(pk, pkAfterCommit);
    }
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        DbEntity dbEntity = map.getDbEntity("PAINTING");
        assertNotNull(dbEntity);
        ObjEntity objEntity = map.getObjEntity("Painting");
        assertNotNull(objEntity);

        DataContext ctxt = createDataContext();

        // insert some rows before adding "not null" column
        final int nrows = 10;
        for (int i = 0; i < nrows; i++) {
            DataObject o = (DataObject) ctxt.newObject("Painting");
            o.writeProperty("paintingTitle", "ptitle" + i);
        }
        ctxt.commitChanges();

        // create and add new column to model and db
        DbAttribute column = new DbAttribute("NEWCOL2", Types.VARCHAR, dbEntity);

        column.setMandatory(false);
        column.setMaxLength(10);
        dbEntity.addAttribute(column);
        assertTrue(dbEntity.getAttributes().contains(column));
        assertEquals(column, dbEntity.getAttribute(column.getName()));
        assertTokensAndExecute(node, map, 1, 0);

        // need obj attr to be able to query
        ObjAttribute objAttr = new ObjAttribute("newcol2");
        objAttr.setDbAttributePath(column.getName());
        objEntity.addAttribute(objAttr);

        // check that is was merged
        assertTokensAndExecute(node, map, 0, 0);

        // set not null
        column.setMandatory(true);

        // merge to db
        assertTokensAndExecute(node, map, 2, 0);

        // check that is was merged
        assertTokensAndExecute(node, map, 0, 0);

        // check values for null
        Expression qual = ExpressionFactory.matchExp(
                objAttr.getName(),
                DEFAULT_VALUE_STRING);
        SelectQuery query = new SelectQuery("Painting", qual);
        List<Persistent> rows = ctxt.performQuery(query);
        assertEquals(nrows, rows.size());

        // clean up
        dbEntity.removeAttribute(column.getName());
        assertTokensAndExecute(node, map, 1, 0);
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    public void testCacheStrategy() throws Exception {
        deleteTestData();

        insertValue();
        DataContext contex = createDataContext();
        String ejbql = "select a FROM Artist a";
        EJBQLQuery query = new EJBQLQuery(ejbql);
        query.setCacheStrategy(QueryCacheStrategy.LOCAL_CACHE);
        List<Artist> artist1 = contex.performQuery(query);
        blockQueries();
        List<Artist> artist2;
        try {
            EJBQLQuery query1 = new EJBQLQuery(ejbql);
            query1.setCacheStrategy(QueryCacheStrategy.LOCAL_CACHE);
            artist2 = contex.performQuery(query1);
        }
        finally {
            unblockQueries();
        }
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        Artist artist = (Artist) createDataContext().objectFromDataRow("Artist", (DataRow) row);
        assertEquals(artistName, artist.getArtistName());
    }

    private void insertValue() {
        DataContext context = createDataContext();

        for (int i = 0; i < 5; i++) {
            Artist obj = context.newObject(Artist.class);
            obj.setArtistName("a" + i);
            context.commitChanges();
        }
    }
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        assertTrue(token instanceof DropColumnToModel);
        execute(token);
        assertNull(dbEntity.getAttribute(column2.getName()));
        assertNull(objEntity.getAttribute(oatr1.getName()));

        DataContext ctxt = createDataContext();

        // clear up
        map.removeObjEntity(objEntity.getName(), true);
        map.removeDbEntity(dbEntity.getName(), true);
        ctxt.getEntityResolver().clearCache();
        assertNull(map.getObjEntity(objEntity.getName()));
        assertNull(map.getDbEntity(dbEntity.getName()));
        assertFalse(map.getDbEntities().contains(dbEntity));

        assertTokensAndExecute(node, map, 1, 0);
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        assertEquals(0, dbEntity2.getRelationships().size());
        assertEquals(0, objEntity1.getRelationships().size());
        assertEquals(0, objEntity2.getRelationships().size());

        // clear up
        DataContext ctxt = createDataContext();
        dbEntity1.removeRelationship(rel1To2.getName());
        dbEntity2.removeRelationship(rel2To1.getName());
        map.removeObjEntity(objEntity1.getName(), true);
        map.removeDbEntity(dbEntity1.getName(), true);
        map.removeObjEntity(objEntity2.getName(), true);
        map.removeDbEntity(dbEntity2.getName(), true);
        ctxt.getEntityResolver().clearCache();
        assertNull(map.getObjEntity(objEntity1.getName()));
        assertNull(map.getDbEntity(dbEntity1.getName()));
        assertNull(map.getObjEntity(objEntity2.getName()));
        assertNull(map.getDbEntity(dbEntity2.getName()));
        assertFalse(map.getDbEntities().contains(dbEntity1));
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            context.commitChanges();
        }
    }

    private void insertPaintValue() {
        DataContext context = createDataContext();

        for (int i = 0; i < 2; i++) {
            Artist art = context.newObject(Artist.class);
            art.setArtistName("a" + i);
            Painting obj = context.newObject(Painting.class);
            obj.setToArtist(art);
            obj.setPaintingTitle("title" + i);
            context.commitChanges();
        }
    }
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    }

    public void testSelectRelationship() {

        insertPaintValue();
        DataContext contex = createDataContext();

        String ejbql = "SELECT p.toArtist FROM Painting p";
        EJBQLQuery query = new EJBQLQuery(ejbql);

        List result = contex.performQuery(query);

        assertNotNull(result);
        assertEquals(2, result.size());

        assertEquals(Artist.class, result.get(0).getClass());


        String ejbql2 = "SELECT p.toArtist, p FROM Painting p";
        EJBQLQuery query2 = new EJBQLQuery(ejbql2);

        List result2 = contex.performQuery(query2);

        assertNotNull(result2);
        assertEquals(2, result2.size());
        assertEquals(2, ((Object[])result2.get(0)).length);

        assertEquals(Artist.class,((Object[])result2.get(0))[0].getClass());
        assertEquals(Painting.class,((Object[])result2.get(0))[1].getClass());

        String ejbql3 = "SELECT p.toArtist, p.paintingTitle FROM Painting p";
        EJBQLQuery query3 = new EJBQLQuery(ejbql3);

        List result3 = contex.performQuery(query3);

        assertNotNull(result3);
        assertEquals(2, result3.size());
        assertEquals(2, ((Object[])result3.get(0)).length);
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/**
*/
public class CayenneDataObjectValidationTest extends CayenneCase {

    public void testValidateForSaveMandatoryToOneMissing() throws Exception {
        DataContext context = createDataContext();
        Exhibit exhibit = context.newObject(Exhibit.class);
        exhibit.setOpeningDate(new Date());
        exhibit.setClosingDate(new Date());

        ValidationResult result = new ValidationResult();
        exhibit.validateForSave(result);

        assertTrue("Validation of 'toGallery' should've failed.", result.hasFailures());
        assertTrue(result.hasFailures(exhibit));

        List failures = result.getFailures();
        assertEquals(1, failures.size());

        BeanValidationFailure failure = (BeanValidationFailure) failures.get(0);
        assertEquals(Exhibit.TO_GALLERY_PROPERTY, failure.getProperty());

        // fix the problem and see if it goes away
        Gallery gallery = context.newObject(Gallery.class);
        exhibit.setToGallery(gallery);
        result = new ValidationResult();
        exhibit.validateForSave(result);
        assertFalse("No failures expected: " + result, result.hasFailures());
    }
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        exhibit.validateForSave(result);
        assertFalse("No failures expected: " + result, result.hasFailures());
    }

    public void testValidateForSaveMandatoryAttributeMissing() throws Exception {
        DataContext context = createDataContext();
        Artist artist = (Artist) context.newObject("Artist");

        ValidationResult result = new ValidationResult();
        artist.validateForSave(result);

        assertTrue("Validation of 'artistName' should've failed.", result.hasFailures());
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Related Classes of org.apache.cayenne.access.DataContext

  • org.apache.cayenne.access.event.DataContextEvent
  • org.apache.cayenne.access.jdbc.SoftDeleteBatchQueryBuilderTest
  • org.apache.cayenne.access.util.BatchQueryUtils
  • org.apache.cayenne.access.util.IteratedSelectObserver
  • org.apache.cayenne.cache.NestedQueryCache
  • org.apache.cayenne.CayenneContextEJBQLTest
  • org.apache.cayenne.CayenneContextWithDataContextTest
  • org.apache.cayenne.CayenneDataObjectFlattenedRelTest
  • org.apache.cayenne.CayenneDataObjectInCtxtTest
  • org.apache.cayenne.CayenneDataObjectRelTest
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