Package org.apache.cayenne.map

Examples of org.apache.cayenne.map.DbEntity

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        if (entity == null) {
            String msg = "Non-existent ObjEntity for class: " + dataObjectClass;
            throw new RuntimeException(msg);
        }

        DbEntity dbEntity = entity.getDbEntity();
        if (dbEntity == null) {
            String msg = "No DbEntity for ObjEntity: " + entity.getName();
            throw new RuntimeException(msg);
        }

        List pkAttributes = dbEntity.getPrimaryKey();
        if (pkAttributes.size() != 1) {
            String msg = "PK contains " + pkAttributes.size()
                + " columns, expected 1.";
            throw new RuntimeException(msg);
        }
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        if (objEntity == null) {
            throw new CayenneRuntimeException("Unmapped DataObject Class: "
                    + dataObjectClass.getName());
        }

        DbEntity dbEntity = objEntity.getDbEntity();
        if (dbEntity == null) {
            throw new CayenneRuntimeException("No DbEntity for ObjEntity: "
                    + objEntity.getName());
        }

        List pkAttributes = dbEntity.getPrimaryKey();
        if (pkAttributes.size() != 1) {
            throw new CayenneRuntimeException("PK contains "
                    + pkAttributes.size()
                    + " columns, expected 1.");
        }
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        if (objEntity == null) {
            throw new CayenneRuntimeException("Unmapped DataObject Class: "
                    + dataObjectClass.getName());
        }

        DbEntity dbEntity = objEntity.getDbEntity();
        if (dbEntity == null) {
            throw new CayenneRuntimeException("No DbEntity for ObjEntity: "
                    + objEntity.getName());
        }

        List pkAttributes = dbEntity.getPrimaryKey();
        if (pkAttributes.size() != 1) {
            throw new CayenneRuntimeException("PK contains "
                    + pkAttributes.size()
                    + " columns, expected 1.");
        }
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    }

    public void testDbEntityRoot() throws Exception {

        createArtistsDataSet();
        DbEntity artistDbEntity = context.getEntityResolver().getDbEntity("ARTIST");

        SelectQuery query = new SelectQuery(artistDbEntity);
        List results = context.performQuery(query);

        assertEquals(20, results.size());
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import org.apache.cayenne.map.ObjEntity;

public class MergerFactoryTest extends MergeCase {

    public void testAddAndDropColumnToDb() throws Exception {
        DbEntity dbEntity = map.getDbEntity("PAINTING");
        assertNotNull(dbEntity);

        // create and add new column to model and db
        DbAttribute column = new DbAttribute("NEWCOL1", Types.VARCHAR, dbEntity);

        column.setMandatory(false);
        column.setMaxLength(10);
        dbEntity.addAttribute(column);
        assertTokensAndExecute(node, map, 1, 0);

        // try merge once more to check that is was merged
        assertTokensAndExecute(node, map, 0, 0);

        // remove it from model and db
        dbEntity.removeAttribute(column.getName());
        assertTokensAndExecute(node, map, 1, 0);
        assertTokensAndExecute(node, map, 0, 0);
    }
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        assertTokensAndExecute(node, map, 1, 0);
        assertTokensAndExecute(node, map, 0, 0);
    }

    public void testChangeVarcharSizeToDb() throws Exception {
        DbEntity dbEntity = map.getDbEntity("PAINTING");
        assertNotNull(dbEntity);

        // 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);
        assertTokensAndExecute(node, map, 1, 0);

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

        // change size
        column.setMaxLength(20);

        // merge to db
        assertTokensAndExecute(node, map, 1, 0);

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

        // clean up
        dbEntity.removeAttribute(column.getName());
        assertTokensAndExecute(node, map, 1, 0);
        assertTokensAndExecute(node, map, 0, 0);
    }
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        assertTokensAndExecute(node, map, 1, 0);
        assertTokensAndExecute(node, map, 0, 0);
    }

    public void testMultipleTokensToDb() throws Exception {
        DbEntity dbEntity = map.getDbEntity("PAINTING");
        assertNotNull(dbEntity);

        DbAttribute column1 = new DbAttribute("NEWCOL3", Types.VARCHAR, dbEntity);
        column1.setMandatory(false);
        column1.setMaxLength(10);
        dbEntity.addAttribute(column1);
        DbAttribute column2 = new DbAttribute("NEWCOL4", Types.VARCHAR, dbEntity);
        column2.setMandatory(false);
        column2.setMaxLength(10);
        dbEntity.addAttribute(column2);

        assertTokensAndExecute(node, map, 2, 0);

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

        // change size
        column1.setMaxLength(20);
        column2.setMaxLength(30);

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

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

        // clean up
        dbEntity.removeAttribute(column1.getName());
        dbEntity.removeAttribute(column2.getName());
        assertTokensAndExecute(node, map, 2, 0);
        assertTokensAndExecute(node, map, 0, 0);
    }
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    public void testAddTableToDb() throws Exception {
        dropTableIfPresent(node, "NEW_TABLE");

        assertTokensAndExecute(node, map, 0, 0);

        DbEntity dbEntity = new DbEntity("NEW_TABLE");

        DbAttribute column1 = new DbAttribute("ID", Types.INTEGER, dbEntity);
        column1.setMandatory(true);
        column1.setPrimaryKey(true);
        dbEntity.addAttribute(column1);

        DbAttribute column2 = new DbAttribute("NAME", Types.VARCHAR, dbEntity);
        column2.setMaxLength(10);
        column2.setMandatory(false);
        dbEntity.addAttribute(column2);

        map.addDbEntity(dbEntity);

        assertTokensAndExecute(node, map, 1, 0);
        assertTokensAndExecute(node, map, 0, 0);

        ObjEntity objEntity = new ObjEntity("NewTable");
        objEntity.setDbEntity(dbEntity);
        ObjAttribute oatr1 = new ObjAttribute("name");
        oatr1.setDbAttributePath(column2.getName());
        oatr1.setType("java.lang.String");
        objEntity.addAttribute(oatr1);
        map.addObjEntity(objEntity);

        // try to insert some rows to check that pk stuff is working
        DataContext ctxt = createDataContext();
        DataMap sourceMap = map;//ctxt.getEntityResolver().getDataMap("testmap");

        try {
            sourceMap.addDbEntity(dbEntity);
            sourceMap.addObjEntity(objEntity);

            for (int i = 0; i < 5; i++) {
                CayenneDataObject dao = (CayenneDataObject) ctxt.newObject(objEntity
                        .getName());
                dao.writeProperty(oatr1.getName(), "test " + i);
            }
            ctxt.commitChanges();
        }
        finally {
            sourceMap.removeObjEntity(objEntity.getName(), true);
            sourceMap.removeDbEntity(dbEntity.getName(), true);
        }

        // 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);
        assertTokensAndExecute(node, map, 0, 0);
    }
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            // root DbEntity
            {
                DbEntityClassDescriptor dbEntityDescriptor = new DbEntityClassDescriptor(
                        descriptor);
                DbEntity dbEntity = dbEntityDescriptor.getDbEntity();

                Collection<DbEntityClassDescriptor> descriptors = descriptorsByDbEntity
                        .get(dbEntity);
                if (descriptors == null) {
                    descriptors = new ArrayList<DbEntityClassDescriptor>(1);
                    dbEntities.add(dbEntity);
                    descriptorsByDbEntity.put(dbEntity, descriptors);
                }

                descriptors.add(dbEntityDescriptor);
            }

            // secondary DbEntities...

            // Note that this logic won't allow flattened attributes to span multiple
            // databases...
            for (ObjAttribute objAttribute : descriptor.getEntity().getAttributes()) {

                if (objAttribute.isFlattened()) {
                    DbEntityClassDescriptor dbEntityDescriptor = new DbEntityClassDescriptor(
                            descriptor,
                            objAttribute);

                    DbEntity dbEntity = dbEntityDescriptor.getDbEntity();
                    Collection<DbEntityClassDescriptor> descriptors = descriptorsByDbEntity
                            .get(dbEntity);

                    if (descriptors == null) {
                        descriptors = new ArrayList<DbEntityClassDescriptor>(1);
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    public void testAddForeignKeyWithTable() throws Exception {
        dropTableIfPresent(node, "NEW_TABLE");

        assertTokensAndExecute(node, map, 0, 0);

        DbEntity dbEntity = new DbEntity("NEW_TABLE");

        DbAttribute column1 = new DbAttribute("ID", Types.INTEGER, dbEntity);
        column1.setMandatory(true);
        column1.setPrimaryKey(true);
        dbEntity.addAttribute(column1);

        DbAttribute column2 = new DbAttribute("NAME", Types.VARCHAR, dbEntity);
        column2.setMaxLength(10);
        column2.setMandatory(false);
        dbEntity.addAttribute(column2);

        DbAttribute column3 = new DbAttribute("ARTIST_ID", Types.BIGINT, dbEntity);
        column3.setMandatory(false);
        dbEntity.addAttribute(column3);

        map.addDbEntity(dbEntity);

        DbEntity artistDbEntity = map.getDbEntity("ARTIST");
        assertNotNull(artistDbEntity);

        // relation from new_table to artist
        DbRelationship r1 = new DbRelationship("toArtistR1");
        r1.setSourceEntity(dbEntity);
        r1.setTargetEntity(artistDbEntity);
        r1.setToMany(false);
        r1.addJoin(new DbJoin(r1, "ARTIST_ID", "ARTIST_ID"));
        dbEntity.addRelationship(r1);

        // relation from artist to new_table
        DbRelationship r2 = new DbRelationship("toNewTableR2");
        r2.setSourceEntity(artistDbEntity);
        r2.setTargetEntity(dbEntity);
        r2.setToMany(true);
        r2.addJoin(new DbJoin(r2, "ARTIST_ID", "ARTIST_ID"));
        artistDbEntity.addRelationship(r2);

        assertTokensAndExecute(node, map, 2, 0);
        assertTokensAndExecute(node, map, 0, 0);

        DataContext ctxt = createDataContext();

        // remove relationships
        dbEntity.removeRelationship(r1.getName());
        artistDbEntity.removeRelationship(r2.getName());
        ctxt.getEntityResolver().clearCache();
        assertTokensAndExecute(node, map, 1, 1);
        assertTokensAndExecute(node, map, 0, 0);

        // clear up
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  • org.apache.cayenne.access.DbLoaderTest
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