Examples of com.avaje.ebeaninternal.server.cache.CachedManyIds

Package com.avaje.ebeaninternal.server.cache

Examples of com.avaje.ebeaninternal.server.cache.CachedManyIds

com.avaje.ebeaninternal.server.cache.CachedManyIds
The cached data for O2M and M2M relationships.
This is effectively just the Id values for each of the beans in the collection.

  /**
   * Return the CachedManyIds for a given bean many property. Returns null if not in the cache.
   */
  public CachedManyIds manyPropGet(Object parentId, String propertyName) {
    ServerCache collectionIdsCache = cacheManager.getCollectionIdsCache(beanType, propertyName);
    CachedManyIds entry = (CachedManyIds) collectionIdsCache.get(parentId);
    if (entry == null) {
      if (manyLog.isTraceEnabled()) {
        manyLog.trace("   GET {}({}).{} - cache miss", cacheName, parentId, propertyName);
      }
    } else if (manyLog.isDebugEnabled()) {

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  /**
   * Try to load the bean collection from cache return true if successful.
   */
  public boolean manyPropLoad(BeanPropertyAssocMany<?> many, BeanCollection<?> bc, Object parentId, Boolean readOnly) {


    CachedManyIds entry = manyPropGet(parentId, many.getName());
    if (entry == null) {
      // not in cache so return unsuccessful
      return false;
    }
    
    Object ownerBean = bc.getOwnerBean();
    EntityBeanIntercept ebi = ((EntityBean) ownerBean)._ebean_getIntercept();
    PersistenceContext persistenceContext = ebi.getPersistenceContext();


    BeanDescriptor<?> targetDescriptor = many.getTargetDescriptor();


    List<Object> idList = entry.getIdList();
    bc.checkEmptyLazyLoad();
    for (int i = 0; i < idList.size(); i++) {
      Object id = idList.get(i);
      Object refBean = targetDescriptor.createReference(readOnly, id);
      EntityBeanIntercept refEbi = ((EntityBean) refBean)._ebean_getIntercept();

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    for (Object bean : actualDetails) {
      // Collect the id values
      idList.add(targetDescriptor.getId((EntityBean) bean));
    }
    
    CachedManyIds entry = new CachedManyIds(idList);
    ServerCache collectionIdsCache = cacheManager.getCollectionIdsCache(beanType, many.getName());
    if (manyLog.isDebugEnabled()) {
      manyLog.debug("   PUT {}({}).{} - ids:{}", cacheName, parentId, many.getName(), entry);
    }
    collectionIdsCache.put(parentId, entry);

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    // used to just load the cache - trigger loading 
    OCachedBean dummyToLoad = Ebean.find(OCachedBean.class, cachedBean.getId());
    dummyToLoad.getCountries().size();
    
    ServerCache cachedBeanCountriesCache = cacheManager.getCollectionIdsCache(OCachedBean.class, "countries");
    CachedManyIds cachedManyIds = (CachedManyIds) cachedBeanCountriesCache.get(cachedBean.getId());
    
    // confirm the starting data and cache entry
    Assert.assertEquals(2, dummyToLoad.getCountries().size());
    Assert.assertEquals(2, cachedManyIds.getIdList().size());


    
    // act
    OCachedBean loadedBean = Ebean.find(OCachedBean.class, cachedBean.getId());
    loadedBean.getCountries().clear();
    loadedBean.getCountries().add(Ebean.find(Country.class, "AU"));


    Ebean.save(loadedBean);


    // Get the data to assert/check against
    OCachedBean result = Ebean.find(OCachedBean.class, cachedBean.getId());
    cachedManyIds = (CachedManyIds) cachedBeanCountriesCache.get(result.getId());


    // assert that data and cache both show correct data
    Assert.assertEquals(1, result.getCountries().size());
    Assert.assertEquals(1, cachedManyIds.getIdList().size());
    Assert.assertFalse(cachedManyIds.getIdList().contains("NZ"));
    Assert.assertTrue(cachedManyIds.getIdList().contains("AU"));
  }

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    // used to just load the cache - trigger loading 
    OCachedBean dummyToLoad = Ebean.find(OCachedBean.class, cachedBean.getId());
    dummyToLoad.getCountries().size();
    
    ServerCache cachedBeanCountriesCache = cacheManager.getCollectionIdsCache(OCachedBean.class, "countries");
    CachedManyIds cachedManyIds = (CachedManyIds) cachedBeanCountriesCache.get(cachedBean.getId());
    
    // confirm the starting data and cache entry
    Assert.assertEquals(2, dummyToLoad.getCountries().size());
    Assert.assertEquals(2, cachedManyIds.getIdList().size());


    
    // act - this time update the name property so the bean is dirty
    OCachedBean loadedBean = Ebean.find(OCachedBean.class, cachedBean.getId());
    loadedBean.setName("goodbye");
    loadedBean.getCountries().clear();
    loadedBean.getCountries().add(Ebean.find(Country.class, "AU"));


    Ebean.save(loadedBean);


    // Get the data to assert/check against
    OCachedBean result = Ebean.find(OCachedBean.class, cachedBean.getId());
    cachedManyIds = (CachedManyIds) cachedBeanCountriesCache.get(result.getId());


    // assert that data and cache both show correct data
    Assert.assertEquals(1, result.getCountries().size());
    Assert.assertEquals(1, cachedManyIds.getIdList().size());
    Assert.assertFalse(cachedManyIds.getIdList().contains("NZ"));
    Assert.assertTrue(cachedManyIds.getIdList().contains("AU"));
  }

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    List<Country> dummyCountries = dummyLoad.getCountries();
    Assert.assertEquals(2, dummyCountries.size());


    // assert that the cache contains the expected entry
    Assert.assertEquals("countries cache now loaded with 1 entry", 1, cachedBeanCountriesCache.size());
    CachedManyIds dummyEntry = (CachedManyIds) cachedBeanCountriesCache.get(dummyLoad.getId());
    Assert.assertNotNull(dummyEntry);
    Assert.assertEquals("2 ids in the entry", 2, dummyEntry.getIdList().size());
    Assert.assertTrue(dummyEntry.getIdList().contains("NZ"));
    Assert.assertTrue(dummyEntry.getIdList().contains("AU"));
    
    
    // act - this should invalidate our cache entry
    OCachedBean update = new OCachedBean();
    update.setId(cachedBean.getId());
    update.setName("modified");
    update.getCountries().add(Ebean.find(Country.class, "AU"));


    Ebean.update(update);
    
    Assert.assertEquals("countries entry still there (but updated)", 1, cachedBeanCountriesCache.size());
    


    CachedManyIds cachedManyIds = (CachedManyIds) cachedBeanCountriesCache.get(update.getId());


    // assert cache updated
    Assert.assertEquals(1, cachedManyIds.getIdList().size());
    Assert.assertFalse(cachedManyIds.getIdList().contains("NZ"));
    Assert.assertTrue(cachedManyIds.getIdList().contains("AU"));
    
    // assert countries good
    OCachedBean result = Ebean.find(OCachedBean.class, cachedBean.getId());
    Assert.assertEquals(1, result.getCountries().size());

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com.avaje.ebeaninternal.server.deploy.BeanDescriptorCacheHelp

com.avaje.tests.cache.TestCacheCollectionIds

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