Examples with Persistent org.apache.cayenne.Persistent used on opensource projects

Example 51 with Persistent

use of org.apache.cayenne.Persistent in project cayenne by apache.

the class DataContextPrefetchMultistepIT method testToManyToManyFirstStepUnresolved.

@Test
public void testToManyToManyFirstStepUnresolved() throws Exception {
    createTwoArtistsWithExhibitsDataSet();
    // since objects for the phantom prefetches are not retained explicitly, they may
    // get garbage collected, and we won't be able to detect them
    // so ensure ObjectStore uses a regular map just for this test
    context.getObjectStore().objectMap = new HashMap<Object, Persistent>();
    // Check the target ArtistExhibit objects do not exist yet
    Map<String, Object> id1 = new HashMap<>();
    id1.put("ARTIST_ID", 11);
    id1.put("EXHIBIT_ID", 2);
    ObjectId oid1 = new ObjectId("ArtistExhibit", id1);
    Map<String, Object> id2 = new HashMap<>();
    id2.put("ARTIST_ID", 101);
    id2.put("EXHIBIT_ID", 2);
    ObjectId oid2 = new ObjectId("ArtistExhibit", id2);
    assertNull(context.getGraphManager().getNode(oid1));
    assertNull(context.getGraphManager().getNode(oid2));
    Expression e = ExpressionFactory.exp("galleryName = $name");
    SelectQuery<Gallery> q = SelectQuery.query(Gallery.class, e.params(Collections.singletonMap("name", "gallery2")));
    q.addPrefetch("exhibitArray.artistExhibitArray");
    List<Gallery> galleries = context.select(q);
    assertEquals(1, galleries.size());
    Gallery g2 = galleries.get(0);
    // this relationship wasn't explicitly prefetched....
    Object list = g2.readPropertyDirectly("exhibitArray");
    assertTrue(list instanceof Fault);
    // however the target objects must be resolved
    ArtistExhibit ae1 = (ArtistExhibit) context.getGraphManager().getNode(oid1);
    ArtistExhibit ae2 = (ArtistExhibit) context.getGraphManager().getNode(oid2);
    assertNotNull(ae1);
    assertNotNull(ae2);
    assertEquals(PersistenceState.COMMITTED, ae1.getPersistenceState());
    assertEquals(PersistenceState.COMMITTED, ae2.getPersistenceState());
}

Example 52 with Persistent

use of org.apache.cayenne.Persistent in project cayenne by apache.

the class BaseQueryMetadata method resolve.

boolean resolve(Object root, EntityResolver resolver) {
    if (lastRoot != root || lastEntityResolver != resolver) {
        this.classDescriptor = null;
        this.dbEntity = null;
        this.dataMap = null;
        ObjEntity entity = null;
        if (root != null) {
            if (root instanceof Class<?>) {
                entity = resolver.getObjEntity((Class<?>) root, true);
                if (entity != null) {
                    this.dbEntity = entity.getDbEntity();
                    this.dataMap = entity.getDataMap();
                }
            } else if (root instanceof ObjEntity) {
                entity = (ObjEntity) root;
                this.dbEntity = entity.getDbEntity();
                this.dataMap = entity.getDataMap();
            } else if (root instanceof String) {
                entity = resolver.getObjEntity((String) root);
                if (entity != null) {
                    this.dbEntity = entity.getDbEntity();
                    this.dataMap = entity.getDataMap();
                }
            } else if (root instanceof DbEntity) {
                this.dbEntity = (DbEntity) root;
                this.dataMap = dbEntity.getDataMap();
            } else if (root instanceof DataMap) {
                this.dataMap = (DataMap) root;
            } else if (root instanceof Persistent) {
                entity = resolver.getObjEntity((Persistent) root);
                if (entity != null) {
                    this.dbEntity = entity.getDbEntity();
                    this.dataMap = entity.getDataMap();
                }
            }
        }
        if (entity != null) {
            this.classDescriptor = resolver.getClassDescriptor(entity.getName());
        }
        this.lastRoot = root;
        this.lastEntityResolver = resolver;
        return true;
    }
    return false;
}

Example 53 with Persistent

use of org.apache.cayenne.Persistent in project cayenne by apache.

the class IdMapKeyAccessor method getValue.

public Object getValue(Object object) throws PropertyException {
    if (object instanceof Persistent) {
        ObjectId id = ((Persistent) object).getObjectId();
        if (id.isTemporary()) {
            return id;
        }
        Map<?, ?> map = id.getIdSnapshot();
        if (map.size() == 1) {
            Map.Entry<?, ?> pkEntry = map.entrySet().iterator().next();
            return pkEntry.getValue();
        }
        return id;
    } else {
        throw new IllegalArgumentException("Object must be Persistent: " + object);
    }
}

Example 54 with Persistent

use of org.apache.cayenne.Persistent in project cayenne by apache.

the class SimpleAttributeProperty method resolveFault.

protected void resolveFault(Object object) throws PropertyException {
    try {
        Persistent persistent = (Persistent) object;
        ObjectContext context = persistent.getObjectContext();
        if (context != null) {
            context.prepareForAccess(persistent, getName(), false);
        }
    } catch (ClassCastException e) {
        throw new PropertyException("Object is not a Persistent: '" + object.getClass().getName() + "'", this, object, e);
    }
}

Example 55 with Persistent

use of org.apache.cayenne.Persistent in project cayenne by apache.

the class DataContextEJBQLIsNullIT method testIsNotNull.

@Test
public void testIsNotNull() throws Exception {
    createTwoPaintings();
    String ejbql1 = "SELECT p FROM Painting p WHERE p.estimatedPrice IS NOT NULL";
    EJBQLQuery query1 = new EJBQLQuery(ejbql1);
    List<?> results = context.performQuery(query1);
    assertEquals(1, results.size());
    assertEquals(33002, Cayenne.intPKForObject((Persistent) results.get(0)));
}