javax.persistence.spi.PersistenceUnitInfo Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of javax.persistence Show documentation
Show all versions of javax.persistence Show documentation
javax.persistence build based upon git transaction cfcdce1
/*******************************************************************************
* Copyright (c) 2008 - 2014 Oracle Corporation. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v1.0 and Eclipse Distribution License v. 1.0
* which accompanies this distribution.
* The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html
* and the Eclipse Distribution License is available at
* http://www.eclipse.org/org/documents/edl-v10.php.
*
* Contributors:
* Linda DeMichiel - Java Persistence 2.1
* Linda DeMichiel - Java Persistence 2.0
*
******************************************************************************/
package javax.persistence.spi;
import javax.sql.DataSource;
import java.util.List;
import java.util.Properties;
import java.net.URL;
import javax.persistence.SharedCacheMode;
import javax.persistence.ValidationMode;
/**
* Interface implemented by the container and used by the
* persistence provider when creating an {@link javax.persistence.EntityManagerFactory}.
*
* @since Java Persistence 1.0
*/
public interface PersistenceUnitInfo {
/**
* Returns the name of the persistence unit. Corresponds to the
* name attribute in the persistence.xml file.
* @return the name of the persistence unit
*/
public String getPersistenceUnitName();
/**
* Returns the fully qualified name of the persistence provider
* implementation class. Corresponds to the provider element in
* the persistence.xml file.
* @return the fully qualified name of the persistence provider
* implementation class
*/
public String getPersistenceProviderClassName();
/**
* Returns the transaction type of the entity managers created by
* the EntityManagerFactory. The transaction type corresponds to
* the transaction-type attribute in the persistence.xml file.
* @return transaction type of the entity managers created
* by the EntityManagerFactory
*/
public PersistenceUnitTransactionType getTransactionType();
/**
* Returns the JTA-enabled data source to be used by the
* persistence provider. The data source corresponds to the
* jta-data-source element in the persistence.xml file or is
* provided at deployment or by the container.
* @return the JTA-enabled data source to be used by the
* persistence provider
*/
public DataSource getJtaDataSource();
/**
* Returns the non-JTA-enabled data source to be used by the
* persistence provider for accessing data outside a JTA
* transaction. The data source corresponds to the named
* non-jta-data-source element in the persistence.xml file or
* provided at deployment or by the container.
* @return the non-JTA-enabled data source to be used by the
* persistence provider for accessing data outside a JTA
* transaction
*/
public DataSource getNonJtaDataSource();
/**
* Returns the list of the names of the mapping files that the
* persistence provider must load to determine the mappings for
* the entity classes. The mapping files must be in the standard
* XML mapping format, be uniquely named and be resource-loadable
* from the application classpath. Each mapping file name
* corresponds to a mapping-file element in the
* persistence.xml file.
* @return the list of mapping file names that the persistence
* provider must load to determine the mappings for the entity
* classes
*/
public List getMappingFileNames();
/**
* Returns a list of URLs for the jar files or exploded jar
* file directories that the persistence provider must examine
* for managed classes of the persistence unit. Each URL
* corresponds to a jar-file element in the
* persistence.xml file. A URL will either be a
* file: URL referring to a jar file or referring to a directory
* that contains an exploded jar file, or some other URL from
* which an InputStream in jar format can be obtained.
* @return a list of URL objects referring to jar files or
* directories
*/
public List getJarFileUrls();
/**
* Returns the URL for the jar file or directory that is the
* root of the persistence unit. (If the persistence unit is
* rooted in the WEB-INF/classes directory, this will be the
* URL of that directory.)
* The URL will either be a file: URL referring to a jar file
* or referring to a directory that contains an exploded jar
* file, or some other URL from which an InputStream in jar
* format can be obtained.
* @return a URL referring to a jar file or directory
*/
public URL getPersistenceUnitRootUrl();
/**
* Returns the list of the names of the classes that the
* persistence provider must add to its set of managed
* classes. Each name corresponds to a named class element in the
* persistence.xml file.
* @return the list of the names of the classes that the
* persistence provider must add to its set of managed
* classes
*/
public List getManagedClassNames();
/**
* Returns whether classes in the root of the persistence unit
* that have not been explicitly listed are to be included in the
* set of managed classes. This value corresponds to the
* exclude-unlisted-classes element in the persistence.xml file.
* @return whether classes in the root of the persistence
* unit that have not been explicitly listed are to be
* included in the set of managed classes
*/
public boolean excludeUnlistedClasses();
/**
* Returns the specification of how the provider must use
* a second-level cache for the persistence unit.
* The result of this method corresponds to the shared-cache-mode
* element in the persistence.xml file.
* @return the second-level cache mode that must be used by the
* provider for the persistence unit
*
* @since Java Persistence 2.0
*/
public SharedCacheMode getSharedCacheMode();
/**
* Returns the validation mode to be used by the persistence
* provider for the persistence unit. The validation mode
* corresponds to the validation-mode element in the
* persistence.xml file.
* @return the validation mode to be used by the
* persistence provider for the persistence unit
*
* @since Java Persistence 2.0
*/
public ValidationMode getValidationMode();
/**
* Returns a properties object. Each property corresponds to a
* property element in the persistence.xml file
* or to a property set by the container.
* @return Properties object
*/
public Properties getProperties();
/**
* Returns the schema version of the persistence.xml file.
* @return persistence.xml schema version
*
* @since Java Persistence 2.0
*/
public String getPersistenceXMLSchemaVersion();
/**
* Returns ClassLoader that the provider may use to load any
* classes, resources, or open URLs.
* @return ClassLoader that the provider may use to load any
* classes, resources, or open URLs
*/
public ClassLoader getClassLoader();
/**
* Add a transformer supplied by the provider that will be
* called for every new class definition or class redefinition
* that gets loaded by the loader returned by the
* {@link PersistenceUnitInfo#getClassLoader} method. The transformer
* has no effect on the result returned by the
* {@link PersistenceUnitInfo#getNewTempClassLoader} method.
* Classes are only transformed once within the same classloading
* scope, regardless of how many persistence units they may be
* a part of.
* @param transformer provider-supplied transformer that the
* container invokes at class-(re)definition time
*/
public void addTransformer(ClassTransformer transformer);
/**
* Return a new instance of a ClassLoader that the provider may
* use to temporarily load any classes, resources, or open
* URLs. The scope and classpath of this loader is exactly the
* same as that of the loader returned by {@link
* PersistenceUnitInfo#getClassLoader}. None of the classes loaded
* by this class loader will be visible to application
* components. The provider may only use this ClassLoader within
* the scope of the {@link
* PersistenceProvider#createContainerEntityManagerFactory} call.
* @return temporary ClassLoader with same visibility as current
* loader
*/
public ClassLoader getNewTempClassLoader();
}