Examples of org.apache.cayenne.map.EntityResolver

org.apache.cayenne.map.EntityResolver
Represents a virtual shared namespace for zero or more DataMaps. Unlike DataMap, EntityResolver is intended to work as a runtime container of mapping. DataMaps can be added or removed dynamically at runtime.
EntityResolver is thread-safe.
@since 1.1 @author Andrus Adamchik

        EJBQLQuery q2 = new EJBQLQuery(ejbql2);
        q2.setParameter(1, "X");
        q2.setParameter("name", "Y");
        q2.setCacheStrategy(QueryCacheStrategy.LOCAL_CACHE);


        EntityResolver resolver = getDomain().getEntityResolver();


        assertEquals(q1.getMetaData(resolver).getCacheKey(), q2
                .getMetaData(resolver)
                .getCacheKey());
    }

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        assertEquals("XYZ", query.getName());
    }


    public void testUniqueKeyEntity() {
        // insertValue();
        EntityResolver resolver = getDomain().getEntityResolver();
        String ejbql = "select a FROM Artist a";


        EJBQLQuery q1 = new EJBQLQuery(ejbql);
        q1.setCacheStrategy(QueryCacheStrategy.LOCAL_CACHE);

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                .getCacheKey());
    }


    public void testGetMetadata() {


        EntityResolver resolver = getDomain().getEntityResolver();
        String ejbql = "select a FROM Artist a";
        EJBQLQuery query = new EJBQLQuery(ejbql);
        QueryMetadata md = query.getMetaData(resolver);


        assertNotNull(md);


        assertNotNull(md.getClassDescriptor());
        assertSame(resolver.getClassDescriptor("Artist"), md.getClassDescriptor());


        assertNotNull(md.getObjEntity());
        assertSame(resolver.getObjEntity("Artist"), md.getObjEntity());


        assertFalse(md.isFetchingDataRows());
        assertTrue(md.isRefreshingObjects());
        assertEquals(QueryCacheStrategy.NO_CACHE, md.getCacheStrategy());
    }

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    public void testTreeSerializationWithHessian() throws Exception {
        PrefetchTreeNode n1 = new PrefetchTreeNode();
        PrefetchTreeNode n2 = n1.addPath("abc");


        PrefetchTreeNode nc1 = (PrefetchTreeNode) HessianUtil
                .cloneViaClientServerSerialization(n1, new EntityResolver());
        assertNotNull(nc1);


        PrefetchTreeNode nc2 = nc1.getNode("abc");
        assertNotNull(nc2);
        assertNotSame(nc2, n2);

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        PrefetchTreeNode n2 = n1.addPath("abc");
        PrefetchTreeNode n3 = n2.addPath("xyz");


        // test that substree was serialized as independent tree, instead of sucking
        PrefetchTreeNode nc2 = (PrefetchTreeNode) HessianUtil
                .cloneViaClientServerSerialization(n2,new EntityResolver());
        assertNotNull(nc2);
        assertNull(nc2.getParent());


        PrefetchTreeNode nc3 = nc2.getNode("xyz");
        assertNotNull(nc3);

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        deleteTestData();
    }


    @Override
    protected void tearDown() throws Exception {
        EntityResolver resolver = getDomain().getEntityResolver();
        resolver.getCallbackRegistry().clear();
    }

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        outWriter.flush();
        StringReader in = new StringReader(out.toString());
        map = new MapLoader().loadDataMap(new InputSource(in));
        
        // map must operate in an EntityResolve namespace...
        EntityResolver testResolver = new EntityResolver();
        testResolver.addDataMap(map);


        node = new DataNode("mergenode");
        node.setAdapter(orgNode.getAdapter());
        node.setDataSource(orgNode.getDataSource());
        node.addDataMap(map);

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     * Removes current object from reverse relationship of object <code>val</code> to this
     * object.
     */
    protected void unsetReverseRelationship(String relName, DataObject val) {


        EntityResolver resolver = objectContext.getEntityResolver();
        ObjEntity entity = resolver.getObjEntity(objectId.getEntityName());


        if (entity == null) {
            throw new IllegalStateException("DataObject's entity is unmapped, objectId: "
                    + objectId);
        }

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     *             replacement may be provided in an undefined future. For now we
     *             recommend the users to implement XML serialization of persistent
     *             objects based JAXB, XStream or other similar frameworks.
     */
    public void encodeAsXML(XMLEncoder encoder) {
        EntityResolver er = getObjectContext().getEntityResolver();
        ObjEntity objectEntity = er.lookupObjEntity(getClass());


        String[] fields = this.getClass().getName().split("\\.");
        encoder.setRoot(fields[fields.length - 1], this.getClass().getName());


        for (final ObjAttribute att : objectEntity.getDeclaredAttributes()) {

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        if (injector == null) {
            throw new IllegalStateException("Can't perform deserialization - "
                    + "no Injector bound to the current thread.");
        }


        EntityResolver resolver = injector
                .getInstance(DataChannel.class)
                .getEntityResolver();
        ObjEntity objectEntity = resolver.lookupObjEntity(getClass());


        for (final ObjAttribute att : objectEntity.getDeclaredAttributes()) {
            String name = att.getName();
            writeProperty(name, decoder.decodeObject(name));
        }

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