Examples of org.apache.openjpa.meta.ClassMetaData

org.apache.openjpa.meta.ClassMetaData
Contains metadata about a persistent type. This metadata is available both at enhancement time and runtime. Note that this class employs aggressive caching, and therefore it is important to finalize the configuration of field metadatas before invoking methods that depend on that configuration, such as {@link #getPrimaryKeyFields}. @author Abe White

        int projs = getContext().getProjectionAliases().length;
        if (projs == 0) {
            // make sure the data cache contains the oids for the query result;
            // if it doesn't, then using the result could be slower than not
            // using it because of the individual by-oid lookups
            ClassMetaData meta = _repos.getMetaData(getContext().
                getCandidateType(), _sctx.getClassLoader(), true);
            BitSet idxs = meta.getDataCache().containsAll(res);


            // eventually we should optimize this to figure out how many objects
            // the cache is missing and if only a few do a bulk fetch for them
            int len = idxs.length();
            if (len < res.size())

View Full Code Here

        return sub ? newUnenhancedSubclassInstance()
            : newUnenhancedInstance();
    }


    public void testMetaData() {
        ClassMetaData meta = JPAFacadeHelper.getMetaData(emf,
            getUnenhancedClass());
        assertEquals(ClassRedefiner.canRedefineClasses(),
            meta.isIntercepting());
    }

View Full Code Here


        assertEquals("updated", listener.stringField);
    }


    public void testGetMetaDataOfSubtype() {
        ClassMetaData meta = JPAFacadeHelper.getMetaData(emf,
            getUnenhancedClass());
        List<Class> subs =  ManagedClassSubclasser.prepareUnenhancedClasses(
            emf.getConfiguration(),
            Collections.singleton(getUnenhancedClass()), null);
        assertSame(meta, JPAFacadeHelper.getMetaData(emf, subs.get(0)));

View Full Code Here

        boolean remove;


        // this logic could be more efficient -- we could aggregate
        // all the cache->oid changes, and then use DataCache.removeAll() 
        // and less write locks to do the mutation.
        ClassMetaData meta = sm.getMetaData();
        DataCache cache = meta.getDataCache();
        if (cache == null)
            return;


        cache.writeLock();
        try {

View Full Code Here


    /**
     * Create a new cacheable instance for the given state manager.
     */
    private DataCachePCData newPCData(OpenJPAStateManager sm) {
        ClassMetaData meta = sm.getMetaData();
        if (_gen != null)
            return (DataCachePCData) _gen.generatePCData
                (sm.getObjectId(), meta);
        return new DataCachePCDataImpl(sm.fetchObjectId(), meta);
    }

View Full Code Here

                .SharedName2.class);
        emf.createEntityManager().close();
    }


        public void testMappedSuperclass() {
        ClassMetaData meta = emf.getConfiguration()
            .getMetaDataRepositoryInstance()
            .getMetaData("SharedName1", getClass().getClassLoader(), true);
        assertEquals(
            org.apache.openjpa.persistence.inheritance.entity.SharedName1.class,
            meta.getDescribedType());
    }

View Full Code Here

            org.apache.openjpa.persistence.inheritance.entity.SharedName1.class,
            meta.getDescribedType());
    }


    public void testEmbeddable() {
        ClassMetaData meta = emf.getConfiguration()
            .getMetaDataRepositoryInstance()
            .getMetaData("SharedName2", getClass().getClassLoader(), true);
        assertEquals(
            org.apache.openjpa.persistence.inheritance.entity.SharedName2.class,
            meta.getDescribedType());
    }

View Full Code Here

            throw SQLExceptions.getStore(se, _dict);
        }
    }


    public boolean assignObjectId(OpenJPAStateManager sm, boolean preFlush) {
        ClassMetaData meta = sm.getMetaData();
        if (meta.getIdentityType() == ClassMetaData.ID_APPLICATION)
            return ApplicationIds.assign(sm, this, preFlush);


        // datastore identity
        Object val = ImplHelper.generateIdentityValue(_ctx, meta,
            JavaTypes.LONG);
        if (val == null && meta.getIdentityStrategy() != ValueStrategies.NATIVE)
            return false;
        if (val == null)
            val = getDataStoreIdSequence(meta).next(_ctx, meta);
        sm.setObjectId(newDataStoreId(val, meta));
        return true;

View Full Code Here

        if (cls == null)
            return null;


        beginOperation(false);
        try {
            ClassMetaData meta = _conf.getMetaDataRepositoryInstance().
                getMetaData(cls, _loader, false);
            if (meta == null
                || meta.getIdentityType() == ClassMetaData.ID_UNKNOWN)
                return null;
            if (meta.getIdentityType() == ClassMetaData.ID_APPLICATION)
                return meta.getObjectIdType();


            return _store.getDataStoreIdType(meta);
        } catch (OpenJPAException ke) {
            throw ke;
        } catch (RuntimeException re) {

View Full Code Here

        if (val == null)
            return null;


        beginOperation(false);
        try {
            ClassMetaData meta = _conf.getMetaDataRepositoryInstance().
                getMetaData(cls, _loader, true);
            switch (meta.getIdentityType()) {
            case ClassMetaData.ID_DATASTORE:
                // delegate to store manager for datastore ids
                if (val instanceof String
                    && ((String) val).startsWith(StateManagerId.STRING_PREFIX))
                    return new StateManagerId((String) val);
                return _store.newDataStoreId(val, meta);
            case ClassMetaData.ID_APPLICATION:
                if (ImplHelper.isAssignable(meta.getObjectIdType(), 
                    val.getClass())) {
                    if (!meta.isOpenJPAIdentity() 
                        && meta.isObjectIdTypeShared())
                        return new ObjectId(cls, val);
                    return val;
                }


                // stringified app id?

View Full Code Here

0 1 2 3 4 5 6 7 8 9

TOP

Related Classes of org.apache.openjpa.meta.ClassMetaData

org.apache.openjpa.abstractstore.AbstractStoreManager

org.apache.openjpa.conf.TestDynamicConfiguration

org.apache.openjpa.datacache.AbstractQueryCache

org.apache.openjpa.datacache.DataCacheManagerImpl

org.apache.openjpa.datacache.DataCachePCDataImpl

org.apache.openjpa.datacache.DataCacheStoreManager

org.apache.openjpa.datacache.QueryCacheStoreQuery

org.apache.openjpa.datacache.QueryKey

org.apache.openjpa.enhance.AbstractUnenhancedClassTest

org.apache.openjpa.enhance.ApplicationIdTool

All source code are property of their respective owners. Java is a trademark of Sun Microsystems, Inc and owned by ORACLE Inc. Contact coftware#gmail.com.