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* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
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*
* http://www.apache.org/licenses/LICENSE-2.0
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* Unless required by applicable law or agreed to in writing,
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package org.apache.openjpa.persistence.datacache;
import java.util.Arrays;
import javax.persistence.EntityManager;
import org.apache.openjpa.datacache.DataCache;
import org.apache.openjpa.kernel.PCData;
import org.apache.openjpa.meta.ClassMetaData;
import org.apache.openjpa.persistence.OpenJPAPersistence;
import org.apache.openjpa.persistence.StoreCacheImpl;
import org.apache.openjpa.persistence.JPAFacadeHelper;
import org.apache.openjpa.persistence.simple.AllFieldTypes;
import org.apache.openjpa.persistence.test.SingleEMFTestCase;
public class TestArrayFieldsInDataCache
extends SingleEMFTestCase {
private static final String[] STRINGS = new String[]{ "a", "b", "c" };
private static final int[] INTS = new int[]{ 1, 2, 3 };
private Object jpaOid;
private Object internalOid;
public void setUp() {
setUp("openjpa.DataCache", "true",
"openjpa.RemoteCommitProvider", "sjvm",
AllFieldTypes.class);
EntityManager em = emf.createEntityManager();
em.getTransaction().begin();
AllFieldTypes aft = new AllFieldTypes();
aft.setArrayOfStrings(STRINGS);
aft.setArrayOfInts(INTS);
em.persist(aft);
em.getTransaction().commit();
// get the external and internal forms of the ID for cache
// interrogation and data validation
jpaOid = OpenJPAPersistence.cast(em).getObjectId(aft);
internalOid = JPAFacadeHelper.toBroker(em).getObjectId(aft);
em.close();
}
public void testArrayOfStrings() {
// check that the data cache contains an efficient representation
StoreCacheImpl storeCache = (StoreCacheImpl)
OpenJPAPersistence.cast(emf).getStoreCache();
DataCache cache = storeCache.getDelegate();
PCData data = cache.get(internalOid);
ClassMetaData meta = JPAFacadeHelper.getMetaData(emf,
AllFieldTypes.class);
Object cachedFieldData =
data.getData(meta.getField("arrayOfStrings").getIndex());
assertTrue(cachedFieldData.getClass().isArray());
assertEquals(String.class,
cachedFieldData.getClass().getComponentType());
// make sure that the returned results are correct
EntityManager em = emf.createEntityManager();
AllFieldTypes aft = em.find(AllFieldTypes.class, jpaOid);
assertTrue(Arrays.equals(STRINGS, aft.getArrayOfStrings()));
assertNotSame(STRINGS, aft.getArrayOfStrings());
em.close();
}
public void testArrayOfInts() {
// check that the data cache contains an efficient representation
StoreCacheImpl storeCache = (StoreCacheImpl)
OpenJPAPersistence.cast(emf).getStoreCache();
DataCache cache = storeCache.getDelegate();
PCData data = cache.get(internalOid);
ClassMetaData meta = JPAFacadeHelper.getMetaData(emf,
AllFieldTypes.class);
Object cachedFieldData =
data.getData(meta.getField("arrayOfInts").getIndex());
assertTrue(cachedFieldData.getClass().isArray());
assertEquals(int.class, cachedFieldData.getClass().getComponentType());
// make sure that the returned results are correct
EntityManager em = emf.createEntityManager();
AllFieldTypes aft = em.find(AllFieldTypes.class, jpaOid);
assertTrue(Arrays.equals(INTS, aft.getArrayOfInts()));
assertNotSame(INTS, aft.getArrayOfInts());
em.close();
}
}