this.hibernateProperties = new Properties();
		}
		return this.hibernateProperties;
	}

	/**
	 * Set the JTA TransactionManager to be used for Hibernate's
	 * TransactionManagerLookup. Allows for using a Spring-managed
	 * JTA TransactionManager for Hibernate's cache synchronization.
	 * <p>Note: If this is set, the Hibernate settings should not define a
	 * transaction manager lookup to avoid meaningless double configuration.
	 * @see LocalTransactionManagerLookup
	 */
	public void setJtaTransactionManager(TransactionManager jtaTransactionManager) {
		this.jtaTransactionManager = jtaTransactionManager;
	}

	/**
	 * Set the Hibernate CacheProvider to use for the SessionFactory.
	 * Allows for using a Spring-managed CacheProvider instance.
	 * <p>Note: If this is set, the Hibernate settings should not define a
	 * cache provider to avoid meaningless double configuration.
	 * @see LocalCacheProviderProxy
	 */
	public void setCacheProvider(CacheProvider cacheProvider) {
		this.cacheProvider = cacheProvider;
	}

	/**
	 * Set the LobHandler to be used by the SessionFactory.
	 * Will be exposed at config time for UserType implementations.
	 * @see #getConfigTimeLobHandler
	 * @see org.hibernate.usertype.UserType
	 * @see org.springframework.orm.hibernate3.support.ClobStringType
	 * @see org.springframework.orm.hibernate3.support.BlobByteArrayType
	 * @see org.springframework.orm.hibernate3.support.BlobSerializableType
	 */
	public void setLobHandler(LobHandler lobHandler) {
		this.lobHandler = lobHandler;
	}

	/**
	 * Set a Hibernate entity interceptor that allows to inspect and change
	 * property values before writing to and reading from the database.
	 * Will get applied to any new Session created by this factory.
	 * <p>Such an interceptor can either be set at the SessionFactory level, i.e. on
	 * LocalSessionFactoryBean, or at the Session level, i.e. on HibernateTemplate,
	 * HibernateInterceptor, and HibernateTransactionManager. It's preferable to set
	 * it on LocalSessionFactoryBean or HibernateTransactionManager to avoid repeated
	 * configuration and guarantee consistent behavior in transactions.
	 * @see HibernateTemplate#setEntityInterceptor
	 * @see HibernateInterceptor#setEntityInterceptor
	 * @see HibernateTransactionManager#setEntityInterceptor
	 * @see org.hibernate.cfg.Configuration#setInterceptor
	 */
	public void setEntityInterceptor(Interceptor entityInterceptor) {
		this.entityInterceptor = entityInterceptor;
	}

	/**
	 * Set a Hibernate NamingStrategy for the SessionFactory, determining the
	 * physical column and table names given the info in the mapping document.
	 * @see org.hibernate.cfg.Configuration#setNamingStrategy
	 */
	public void setNamingStrategy(NamingStrategy namingStrategy) {
		this.namingStrategy = namingStrategy;
	}

	/**
	 * Specify the Hibernate type definitions to register with the SessionFactory,
	 * as Spring TypeDefinitionBean instances. This is an alternative to specifying
	 * <&lt;typedef&gt; elements in Hibernate mapping files.
	 * <p>Unfortunately, Hibernate itself does not define a complete object that
	 * represents a type definition, hence the need for Spring's TypeDefinitionBean.
	 * @see TypeDefinitionBean
	 * @see org.hibernate.cfg.Mappings#addTypeDef(String, String, java.util.Properties)
	 */
	public void setTypeDefinitions(TypeDefinitionBean[] typeDefinitions) {
		this.typeDefinitions = typeDefinitions;
	}

	/**
	 * Specify the Hibernate FilterDefinitions to register with the SessionFactory.
	 * This is an alternative to specifying <&lt;filter-def&gt; elements in
	 * Hibernate mapping files.
	 * <p>Typically, the passed-in FilterDefinition objects will have been defined
	 * as Spring FilterDefinitionFactoryBeans, probably as inner beans within the
	 * LocalSessionFactoryBean definition.
	 * @see FilterDefinitionFactoryBean
	 * @see org.hibernate.cfg.Configuration#addFilterDefinition
	 */
	public void setFilterDefinitions(FilterDefinition[] filterDefinitions) {
		this.filterDefinitions = filterDefinitions;
	}

	/**
	 * Specify the cache strategies for entities (persistent classes or named entities).
	 * This configuration setting corresponds to the &lt;class-cache&gt; entry
	 * in the "hibernate.cfg.xml" configuration format.
	 * <p>For example:
	 * <pre>
	 * &lt;property name="entityCacheStrategies"&gt;
	 *   &lt;props&gt;
	 *     &lt;prop key="com.mycompany.Customer"&gt;read-write&lt;/prop&gt;
	 *     &lt;prop key="com.mycompany.Product"&gt;read-only,myRegion&lt;/prop&gt;
	 *   &lt;/props&gt;
	 * &lt;/property&gt;</pre>
	 * Note that appending a cache region name (with a comma separator) is only
	 * supported on Hibernate 3.1, where this functionality is publically available.
	 * @param entityCacheStrategies properties that define entity cache strategies,
	 * with class names as keys and cache concurrency strategies as values
	 * @see org.hibernate.cfg.Configuration#setCacheConcurrencyStrategy(String, String)
	 */
	public void setEntityCacheStrategies(Properties entityCacheStrategies) {
		this.entityCacheStrategies = entityCacheStrategies;
	}

	/**
	 * Specify the cache strategies for persistent collections (with specific roles).
	 * This configuration setting corresponds to the &lt;collection-cache&gt; entry
	 * in the "hibernate.cfg.xml" configuration format.
	 * <p>For example:
	 * <pre>
	 * &lt;property name="collectionCacheStrategies"&gt;
	 *   &lt;props&gt;
	 *     &lt;prop key="com.mycompany.Order.items">read-write&lt;/prop&gt;
	 *     &lt;prop key="com.mycompany.Product.categories"&gt;read-only,myRegion&lt;/prop&gt;
	 *   &lt;/props&gt;
	 * &lt;/property&gt;</pre>
	 * Note that appending a cache region name (with a comma separator) is only
	 * supported on Hibernate 3.1, where this functionality is publically available.
	 * @param collectionCacheStrategies properties that define collection cache strategies,
	 * with collection roles as keys and cache concurrency strategies as values
	 * @see org.hibernate.cfg.Configuration#setCollectionCacheConcurrencyStrategy(String, String)
	 */
	public void setCollectionCacheStrategies(Properties collectionCacheStrategies) {
		this.collectionCacheStrategies = collectionCacheStrategies;
	}

	/**
	 * Specify the Hibernate event listeners to register, with listener types
	 * as keys and listener objects as values.
	 * <p>Instead of a single listener object, you can also pass in a list
	 * or set of listeners objects as value. However, this is only supported
	 * on Hibernate 3.1.
	 * <p>See the Hibernate documentation for further details on listener types
	 * and associated listener interfaces.
	 * @param eventListeners Map with listener type Strings as keys and
	 * listener objects as values
	 * @see org.hibernate.cfg.Configuration#setListener(String, Object)
	 */
	public void setEventListeners(Map eventListeners) {
		this.eventListeners = eventListeners;
	}

	/**
	 * Set whether to execute a schema update after SessionFactory initialization.
	 * <p>For details on how to make schema update scripts work, see the Hibernate
	 * documentation, as this class leverages the same schema update script support
	 * in org.hibernate.cfg.Configuration as Hibernate's own SchemaUpdate tool.
	 * @see org.hibernate.cfg.Configuration#generateSchemaUpdateScript
	 * @see org.hibernate.tool.hbm2ddl.SchemaUpdate
	 */
	public void setSchemaUpdate(boolean schemaUpdate) {
		this.schemaUpdate = schemaUpdate;
	}

	public void setBeanClassLoader(ClassLoader beanClassLoader) {
		this.beanClassLoader = beanClassLoader;
	}


	protected SessionFactory buildSessionFactory() throws Exception {
		// Create Configuration instance.
		Configuration config = newConfiguration();

		DataSource dataSource = getDataSource();
		if (dataSource != null) {
			// Make given DataSource available for SessionFactory configuration.
			configTimeDataSourceHolder.set(dataSource);
		}
		if (this.jtaTransactionManager != null) {
			// Make Spring-provided JTA TransactionManager available.
			configTimeTransactionManagerHolder.set(this.jtaTransactionManager);
		}
		if (this.cacheProvider != null) {
			// Make Spring-provided Hibernate CacheProvider available.
			configTimeCacheProviderHolder.set(this.cacheProvider);
		}
		if (this.lobHandler != null) {
			// Make given LobHandler available for SessionFactory configuration.
			// Do early because because mapping resource might refer to custom types.
			configTimeLobHandlerHolder.set(this.lobHandler);
		}

		// Analogous to Hibernate EntityManager's Ejb3Configuration:
		// Hibernate doesn't allow setting the bean ClassLoader explicitly,
		// so we need to expose it as thread context ClassLoader accordingly.
		Thread currentThread = Thread.currentThread();
		ClassLoader threadContextClassLoader = currentThread.getContextClassLoader();
		boolean overrideClassLoader =
				(this.beanClassLoader != null && !this.beanClassLoader.equals(threadContextClassLoader));
		if (overrideClassLoader) {
			currentThread.setContextClassLoader(this.beanClassLoader);
		}

		try {
			if (isExposeTransactionAwareSessionFactory()) {
				// Set Hibernate 3.1 CurrentSessionContext implementation,
				// providing the Spring-managed Session as current Session.
				// Can be overridden by a custom value for the corresponding Hibernate property.
				config.setProperty(
						Environment.CURRENT_SESSION_CONTEXT_CLASS, SpringSessionContext.class.getName());
			}

			if (this.jtaTransactionManager != null) {
				// Set Spring-provided JTA TransactionManager as Hibernate property.
				config.setProperty(
						Environment.TRANSACTION_STRATEGY, JTATransactionFactory.class.getName());
				config.setProperty(
						Environment.TRANSACTION_MANAGER_STRATEGY, LocalTransactionManagerLookup.class.getName());
			}
			else {
				// Makes the Hibernate Session aware of the presence of a Spring-managed transaction.
				// Also sets connection release mode to ON_CLOSE by default.
				config.setProperty(
						Environment.TRANSACTION_STRATEGY, SpringTransactionFactory.class.getName());
			}

			if (this.entityInterceptor != null) {
				// Set given entity interceptor at SessionFactory level.
				config.setInterceptor(this.entityInterceptor);
			}

			if (this.namingStrategy != null) {
				// Pass given naming strategy to Hibernate Configuration.
				config.setNamingStrategy(this.namingStrategy);
			}

			if (this.typeDefinitions != null) {
				// Register specified Hibernate type definitions.
				Mappings mappings = config.createMappings();
				for (int i = 0; i < this.typeDefinitions.length; i++) {
					TypeDefinitionBean typeDef = this.typeDefinitions[i];
					mappings.addTypeDef(typeDef.getTypeName(), typeDef.getTypeClass(), typeDef.getParameters());
				}
			}

			if (this.filterDefinitions != null) {
				// Register specified Hibernate FilterDefinitions.
				for (int i = 0; i < this.filterDefinitions.length; i++) {
					config.addFilterDefinition(this.filterDefinitions[i]);
				}
			}

			if (this.configLocations != null) {
				for (int i = 0; i < this.configLocations.length; i++) {
					// Load Hibernate configuration from given location.
					config.configure(this.configLocations[i].getURL());
				}
			}

			if (this.hibernateProperties != null) {
				// Add given Hibernate properties to Configuration.
				config.addProperties(this.hibernateProperties);
			}

			if (dataSource != null) {
				Class providerClass = LocalDataSourceConnectionProvider.class;
				if (isUseTransactionAwareDataSource() || dataSource instanceof TransactionAwareDataSourceProxy) {
					providerClass = TransactionAwareDataSourceConnectionProvider.class;
				}
				else if (config.getProperty(Environment.TRANSACTION_MANAGER_STRATEGY) != null) {
					providerClass = LocalJtaDataSourceConnectionProvider.class;
				}
				// Set Spring-provided DataSource as Hibernate ConnectionProvider.
				config.setProperty(Environment.CONNECTION_PROVIDER, providerClass.getName());
			}

			if (this.cacheProvider != null) {
				// Expose Spring-provided Hibernate CacheProvider.
				config.setProperty(Environment.CACHE_PROVIDER, LocalCacheProviderProxy.class.getName());
			}

			if (this.mappingResources != null) {
				// Register given Hibernate mapping definitions, contained in resource files.
				for (int i = 0; i < this.mappingResources.length; i++) {
					Resource resource = new ClassPathResource(this.mappingResources[i].trim(), this.beanClassLoader);
					config.addInputStream(resource.getInputStream());
				}
			}

			if (this.mappingLocations != null) {
				// Register given Hibernate mapping definitions, contained in resource files.
				for (int i = 0; i < this.mappingLocations.length; i++) {
					config.addInputStream(this.mappingLocations[i].getInputStream());
				}
			}

			if (this.cacheableMappingLocations != null) {
				// Register given cacheable Hibernate mapping definitions, read from the file system.
				for (int i = 0; i < this.cacheableMappingLocations.length; i++) {
					config.addCacheableFile(this.cacheableMappingLocations[i].getFile());
				}
			}

			if (this.mappingJarLocations != null) {
				// Register given Hibernate mapping definitions, contained in jar files.
				for (int i = 0; i < this.mappingJarLocations.length; i++) {
					Resource resource = this.mappingJarLocations[i];
					config.addJar(resource.getFile());
				}
			}

			if (this.mappingDirectoryLocations != null) {
				// Register all Hibernate mapping definitions in the given directories.
				for (int i = 0; i < this.mappingDirectoryLocations.length; i++) {
					File file = this.mappingDirectoryLocations[i].getFile();
					if (!file.isDirectory()) {
						throw new IllegalArgumentException(
								"Mapping directory location [" + this.mappingDirectoryLocations[i] +
								"] does not denote a directory");
					}
					config.addDirectory(file);
				}
			}

			// Tell Hibernate to eagerly compile the mappings that we registered,
			// for availability of the mapping information in further processing.
			postProcessMappings(config);
			config.buildMappings();

			if (this.entityCacheStrategies != null) {
				// Register cache strategies for mapped entities.
				for (Enumeration classNames = this.entityCacheStrategies.propertyNames(); classNames.hasMoreElements();) {
					String className = (String) classNames.nextElement();
					String[] strategyAndRegion =
							StringUtils.commaDelimitedListToStringArray(this.entityCacheStrategies.getProperty(className));
					if (strategyAndRegion.length > 1) {
						config.setCacheConcurrencyStrategy(className, strategyAndRegion[0], strategyAndRegion[1]);
					}
					else if (strategyAndRegion.length > 0) {