Examples of org.apache.cayenne.query.ObjectIdQuery

org.apache.cayenne.query.ObjectIdQuery
A query that matches zero or one object or data row corresponding to the ObjectId. Used internally by Cayenne to lookup objects by id. Notice that cache policies of ObjectIdQuery are different from generic {@link QueryMetadata} cache policies.ObjectIdQuery is special - it is the only query that can be done against Cayenne main cache, thus cache handling is significantly different from all other of the queries. @since 1.2 @author Andrus Adamchik

                o1.getObjectId());
        assertNull(o2);


        // now fetch it fresh


        o2 = (ClientMtTable1) c2.performQuery(new ObjectIdQuery(o1.getObjectId())).get(0);
        assertNotNull(o2);
        assertEquals("X", o2.getGlobalAttribute1());
        assertEquals(PersistenceState.COMMITTED, o2.getPersistenceState());
        assertFalse(c1.internalGraphManager().hasChanges());
        assertTrue(c2.internalGraphManager().hasChanges());

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        CayenneContext c2 = (CayenneContext) runtime.getContext();
        assertNotSame(c1, c2);


        ClientMtTable1 o1 = (ClientMtTable1) Cayenne.objectForQuery(
                c1,
                new ObjectIdQuery(new ObjectId("MtTable1", "TABLE1_ID", 1)));


        ClientMtTable1 o2 = (ClientMtTable1) Cayenne.objectForQuery(
                c2,
                new ObjectIdQuery(new ObjectId("MtTable1", "TABLE1_ID", 1)));


        assertEquals("g1", o1.getGlobalAttribute1());
        assertEquals("g1", o2.getGlobalAttribute1());


        o1.setGlobalAttribute1("X");

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        CayenneContext c1 = (CayenneContext) runtime.getContext();
        CayenneContext c2 = (CayenneContext) runtime.getContext();


        ClientMtTable2 o1 = (ClientMtTable2) Cayenne.objectForQuery(
                c1,
                new ObjectIdQuery(new ObjectId("MtTable2", "TABLE2_ID", 1)));


        ClientMtTable2 o2 = (ClientMtTable2) Cayenne.objectForQuery(
                c2,
                new ObjectIdQuery(new ObjectId("MtTable2", "TABLE2_ID", 1)));


        assertEquals("g1", o1.getTable1().getGlobalAttribute1());
        assertEquals("g1", o2.getTable1().getGlobalAttribute1());


        ClientMtTable1 o1r = (ClientMtTable1) Cayenne.objectForQuery(
                c1,
                new ObjectIdQuery(new ObjectId("MtTable1", "TABLE1_ID", 2)));
        o1.setTable1(o1r);
        c1.commitChanges();


        assertEquals("g2", o2.getTable1().getGlobalAttribute1());
        assertEquals(o1r.getObjectId(), o2.getTable1().getObjectId());

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        CayenneContext c1 = (CayenneContext) runtime.getContext();
        CayenneContext c2 = (CayenneContext) runtime.getContext();


        ClientMtTable1 o1 = (ClientMtTable1) Cayenne.objectForQuery(
                c1,
                new ObjectIdQuery(new ObjectId("MtTable1", "TABLE1_ID", 1)));


        ClientMtTable1 o2 = (ClientMtTable1) Cayenne.objectForQuery(
                c2,
                new ObjectIdQuery(new ObjectId("MtTable1", "TABLE1_ID", 1)));


        assertEquals(1, o1.getTable2Array().size());
        assertEquals(1, o2.getTable2Array().size());


        ClientMtTable2 o1r = c1.newObject(ClientMtTable2.class);

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        CayenneContext c1 = (CayenneContext) runtime.getContext();
        CayenneContext c2 = (CayenneContext) runtime.getContext();


        ClientMtTable1 o1 = (ClientMtTable1) Cayenne.objectForQuery(
                c1,
                new ObjectIdQuery(new ObjectId("MtTable1", "TABLE1_ID", 1)));


        // do not resolve objects in question in the second context and see if the merge
        // causes any issues...


        assertEquals(1, o1.getTable2Array().size());


        ClientMtTable2 o1r = c1.newObject(ClientMtTable2.class);
        o1r.setGlobalAttribute("X");
        o1.addToTable2Array(o1r);


        c1.commitChanges();


        assertEquals(2, o1.getTable2Array().size());


        assertFalse(c1.internalGraphManager().hasChanges());
        assertFalse(c2.internalGraphManager().hasChanges());


        ClientMtTable1 o2 = (ClientMtTable1) Cayenne.objectForQuery(
                c2,
                new ObjectIdQuery(new ObjectId("MtTable1", "TABLE1_ID", 1)));
        assertEquals(2, o2.getTable2Array().size());
    }

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        CayenneContext c1 = (CayenneContext) runtime.getContext();
        CayenneContext c2 = (CayenneContext) runtime.getContext();


        ClientMtTable4 o1 = (ClientMtTable4) Cayenne.objectForQuery(
                c1,
                new ObjectIdQuery(new ObjectId("MtTable4", "ID", 1)));


        ClientMtTable4 o2 = (ClientMtTable4) Cayenne.objectForQuery(
                c2,
                new ObjectIdQuery(new ObjectId("MtTable4", "ID", 1)));


        assertEquals(2, o1.getTable5s().size());
        assertEquals(2, o2.getTable5s().size());


        ClientMtTable5 o1r = (ClientMtTable5) Cayenne.objectForQuery(
                c1,
                new ObjectIdQuery(new ObjectId("MtTable5", "ID", 1)));
        o1.removeFromTable5s(o1r);


        c1.commitChanges();


        assertEquals(1, o1.getTable5s().size());

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                "Artist",
                Artist.ARTIST_ID_PK_COLUMN,
                33001), null);
        final DataObject committed = (DataObject) Cayenne.objectForQuery(
                context,
                new ObjectIdQuery(new ObjectId(
                        "Artist",
                        Artist.ARTIST_ID_PK_COLUMN,
                        33002)));


        int modifiedId = 33003;
        final Artist modified = (Artist) Cayenne.objectForQuery(
                context,
                new ObjectIdQuery(new ObjectId(
                        "Artist",
                        Artist.ARTIST_ID_PK_COLUMN,
                        modifiedId)));
        modified.setArtistName("MODDED");
        final DataObject deleted = (DataObject) Cayenne.objectForQuery(
                context,
                new ObjectIdQuery(new ObjectId(
                        "Artist",
                        Artist.ARTIST_ID_PK_COLUMN,
                        33004)));
        context.deleteObjects(deleted);

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        final ObjectContext peerContext = runtime.getDataDomain().createDataContext();


        int modifiedId = 33003;
        final Artist modified = (Artist) Cayenne.objectForQuery(
                context,
                new ObjectIdQuery(new ObjectId(
                        "Artist",
                        Artist.ARTIST_ID_PK_COLUMN,
                        modifiedId)));
        final Artist peerModified = (Artist) Cayenne.objectForQuery(
                peerContext,
                new ObjectIdQuery(new ObjectId(
                        "Artist",
                        Artist.ARTIST_ID_PK_COLUMN,
                        modifiedId)));


        modified.setArtistName("M1");

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                "Artist",
                Artist.ARTIST_ID_PK_COLUMN,
                33001), null);
        final DataObject committed = (DataObject) Cayenne.objectForQuery(
                context,
                new ObjectIdQuery(new ObjectId(
                        "Artist",
                        Artist.ARTIST_ID_PK_COLUMN,
                        33002)));


        int modifiedId = 33003;
        final Artist modified = (Artist) Cayenne.objectForQuery(
                context,
                new ObjectIdQuery(new ObjectId(
                        "Artist",
                        Artist.ARTIST_ID_PK_COLUMN,
                        modifiedId)));
        modified.setArtistName("M1");
        final DataObject deleted = (DataObject) Cayenne.objectForQuery(
                context,
                new ObjectIdQuery(new ObjectId(
                        "Artist",
                        Artist.ARTIST_ID_PK_COLUMN,
                        33004)));
        context.deleteObjects(deleted);

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        final ObjectContext childContext = context.createChildContext();


        int modifiedId = 33003;
        final Artist modified = (Artist) Cayenne.objectForQuery(
                context,
                new ObjectIdQuery(new ObjectId(
                        "Artist",
                        Artist.ARTIST_ID_PK_COLUMN,
                        modifiedId)));
        final Artist peerModified = (Artist) Cayenne.objectForQuery(
                childContext,
                new ObjectIdQuery(new ObjectId(
                        "Artist",
                        Artist.ARTIST_ID_PK_COLUMN,
                        modifiedId)));


        modified.setArtistName("M1");

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