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The core functionality of Hibernate
//$Id: SessionFactoryImpl.java 11398 2007-04-10 14:54:07Z [email protected] $
package org.hibernate.impl;
import java.io.IOException;
import java.io.InvalidObjectException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.ObjectStreamException;
import java.io.Serializable;
import java.sql.Connection;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Map;
import java.util.Properties;
import java.util.Set;
import javax.naming.NamingException;
import javax.naming.Reference;
import javax.naming.StringRefAddr;
import javax.transaction.TransactionManager;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.hibernate.AssertionFailure;
import org.hibernate.ConnectionReleaseMode;
import org.hibernate.EntityMode;
import org.hibernate.HibernateException;
import org.hibernate.Interceptor;
import org.hibernate.MappingException;
import org.hibernate.ObjectNotFoundException;
import org.hibernate.QueryException;
import org.hibernate.SessionFactory;
import org.hibernate.StatelessSession;
import org.hibernate.SessionFactoryObserver;
import org.hibernate.cache.CacheKey;
import org.hibernate.cache.CollectionRegion;
import org.hibernate.cache.EntityRegion;
import org.hibernate.cache.QueryCache;
import org.hibernate.cache.Region;
import org.hibernate.cache.UpdateTimestampsCache;
import org.hibernate.cache.access.AccessType;
import org.hibernate.cache.access.CollectionRegionAccessStrategy;
import org.hibernate.cache.access.EntityRegionAccessStrategy;
import org.hibernate.cache.impl.CacheDataDescriptionImpl;
import org.hibernate.cfg.Configuration;
import org.hibernate.cfg.Environment;
import org.hibernate.cfg.Settings;
import org.hibernate.connection.ConnectionProvider;
import org.hibernate.context.CurrentSessionContext;
import org.hibernate.context.JTASessionContext;
import org.hibernate.context.ManagedSessionContext;
import org.hibernate.context.ThreadLocalSessionContext;
import org.hibernate.dialect.Dialect;
import org.hibernate.dialect.function.SQLFunctionRegistry;
import org.hibernate.engine.FilterDefinition;
import org.hibernate.engine.Mapping;
import org.hibernate.engine.NamedQueryDefinition;
import org.hibernate.engine.NamedSQLQueryDefinition;
import org.hibernate.engine.ResultSetMappingDefinition;
import org.hibernate.engine.SessionFactoryImplementor;
import org.hibernate.engine.query.QueryPlanCache;
import org.hibernate.engine.query.sql.NativeSQLQuerySpecification;
import org.hibernate.event.EventListeners;
import org.hibernate.exception.SQLExceptionConverter;
import org.hibernate.id.IdentifierGenerator;
import org.hibernate.id.UUIDHexGenerator;
import org.hibernate.jdbc.BatcherFactory;
import org.hibernate.mapping.Collection;
import org.hibernate.mapping.PersistentClass;
import org.hibernate.mapping.RootClass;
import org.hibernate.metadata.ClassMetadata;
import org.hibernate.metadata.CollectionMetadata;
import org.hibernate.persister.PersisterFactory;
import org.hibernate.persister.collection.CollectionPersister;
import org.hibernate.persister.entity.EntityPersister;
import org.hibernate.persister.entity.Queryable;
import org.hibernate.pretty.MessageHelper;
import org.hibernate.proxy.EntityNotFoundDelegate;
import org.hibernate.stat.Statistics;
import org.hibernate.stat.StatisticsImpl;
import org.hibernate.stat.StatisticsImplementor;
import org.hibernate.tool.hbm2ddl.SchemaExport;
import org.hibernate.tool.hbm2ddl.SchemaUpdate;
import org.hibernate.tool.hbm2ddl.SchemaValidator;
import org.hibernate.transaction.TransactionFactory;
import org.hibernate.type.AssociationType;
import org.hibernate.type.Type;
import org.hibernate.util.CollectionHelper;
import org.hibernate.util.ReflectHelper;
/**
* Concrete implementation of the SessionFactory interface. Has the following
* responsibilites
*
* - caches configuration settings (immutably)
*
- caches "compiled" mappings ie. EntityPersisters and
* CollectionPersisters (immutable)
*
- caches "compiled" queries (memory sensitive cache)
*
- manages PreparedStatements
*
- delegates JDBC Connection management to the ConnectionProvider
*
- factory for instances of SessionImpl
*
* This class must appear immutable to clients, even if it does all kinds of caching
* and pooling under the covers. It is crucial that the class is not only thread
* safe, but also highly concurrent. Synchronization must be used extremely sparingly.
*
* @see org.hibernate.connection.ConnectionProvider
* @see org.hibernate.classic.Session
* @see org.hibernate.hql.QueryTranslator
* @see org.hibernate.persister.entity.EntityPersister
* @see org.hibernate.persister.collection.CollectionPersister
* @author Gavin King
*/
public final class SessionFactoryImpl implements SessionFactory, SessionFactoryImplementor {
private static final Logger log = LoggerFactory.getLogger(SessionFactoryImpl.class);
private static final IdentifierGenerator UUID_GENERATOR = new UUIDHexGenerator();
private final String name;
private final String uuid;
private final transient Map entityPersisters;
private final transient Map classMetadata;
private final transient Map collectionPersisters;
private final transient Map collectionMetadata;
private final transient Map collectionRolesByEntityParticipant;
private final transient Map identifierGenerators;
private final transient Map namedQueries;
private final transient Map namedSqlQueries;
private final transient Map sqlResultSetMappings;
private final transient Map filters;
private final transient Map imports;
private final transient Interceptor interceptor;
private final transient Settings settings;
private final transient Properties properties;
private transient SchemaExport schemaExport;
private final transient TransactionManager transactionManager;
private final transient QueryCache queryCache;
private final transient UpdateTimestampsCache updateTimestampsCache;
private final transient Map queryCaches;
private final transient Map allCacheRegions = new HashMap();
private final transient StatisticsImpl statistics = new StatisticsImpl(this);
private final transient EventListeners eventListeners;
private final transient CurrentSessionContext currentSessionContext;
private final transient EntityNotFoundDelegate entityNotFoundDelegate;
private final transient SQLFunctionRegistry sqlFunctionRegistry;
private final transient SessionFactoryObserver observer;
private final QueryPlanCache queryPlanCache = new QueryPlanCache( this );
private transient boolean isClosed = false;
public SessionFactoryImpl(
Configuration cfg,
Mapping mapping,
Settings settings,
EventListeners listeners,
SessionFactoryObserver observer) throws HibernateException {
log.info("building session factory");
this.properties = new Properties();
this.properties.putAll( cfg.getProperties() );
this.interceptor = cfg.getInterceptor();
this.settings = settings;
this.sqlFunctionRegistry = new SQLFunctionRegistry(settings.getDialect(), cfg.getSqlFunctions());
this.eventListeners = listeners;
this.observer = observer != null ? observer : new SessionFactoryObserver() {
public void sessionFactoryCreated(SessionFactory factory) {
}
public void sessionFactoryClosed(SessionFactory factory) {
}
};
this.filters = new HashMap();
this.filters.putAll( cfg.getFilterDefinitions() );
if ( log.isDebugEnabled() ) {
log.debug("Session factory constructed with filter configurations : " + filters);
}
if ( log.isDebugEnabled() ) {
log.debug(
"instantiating session factory with properties: " + properties
);
}
// Caches
settings.getRegionFactory().start( settings, properties );
//Generators:
identifierGenerators = new HashMap();
Iterator classes = cfg.getClassMappings();
while ( classes.hasNext() ) {
PersistentClass model = (PersistentClass) classes.next();
if ( !model.isInherited() ) {
IdentifierGenerator generator = model.getIdentifier().createIdentifierGenerator(
settings.getDialect(),
settings.getDefaultCatalogName(),
settings.getDefaultSchemaName(),
(RootClass) model
);
identifierGenerators.put( model.getEntityName(), generator );
}
}
///////////////////////////////////////////////////////////////////////
// Prepare persisters and link them up with their cache
// region/access-strategy
final String cacheRegionPrefix = settings.getCacheRegionPrefix() == null ? "" : settings.getCacheRegionPrefix() + ".";
entityPersisters = new HashMap();
Map entityAccessStrategies = new HashMap();
Map classMeta = new HashMap();
classes = cfg.getClassMappings();
while ( classes.hasNext() ) {
final PersistentClass model = (PersistentClass) classes.next();
model.prepareTemporaryTables( mapping, settings.getDialect() );
final String cacheRegionName = cacheRegionPrefix + model.getRootClass().getCacheRegionName();
// cache region is defined by the root-class in the hierarchy...
EntityRegionAccessStrategy accessStrategy = ( EntityRegionAccessStrategy ) entityAccessStrategies.get( cacheRegionName );
if ( accessStrategy == null && settings.isSecondLevelCacheEnabled() ) {
final AccessType accessType = AccessType.parse( model.getCacheConcurrencyStrategy() );
if ( accessType != null ) {
log.trace( "Building cache for entity data [" + model.getEntityName() + "]" );
EntityRegion entityRegion = settings.getRegionFactory().buildEntityRegion( cacheRegionName, properties, CacheDataDescriptionImpl.decode( model ) );
accessStrategy = entityRegion.buildAccessStrategy( accessType );
entityAccessStrategies.put( cacheRegionName, accessStrategy );
allCacheRegions.put( cacheRegionName, entityRegion );
}
}
EntityPersister cp = PersisterFactory.createClassPersister( model, accessStrategy, this, mapping );
entityPersisters.put( model.getEntityName(), cp );
classMeta.put( model.getEntityName(), cp.getClassMetadata() );
}
classMetadata = Collections.unmodifiableMap(classMeta);
Map tmpEntityToCollectionRoleMap = new HashMap();
collectionPersisters = new HashMap();
Iterator collections = cfg.getCollectionMappings();
while ( collections.hasNext() ) {
Collection model = (Collection) collections.next();
final String cacheRegionName = cacheRegionPrefix + model.getCacheRegionName();
final AccessType accessType = AccessType.parse( model.getCacheConcurrencyStrategy() );
CollectionRegionAccessStrategy accessStrategy = null;
if ( accessType != null && settings.isSecondLevelCacheEnabled() ) {
log.trace( "Building cache for collection data [" + model.getRole() + "]" );
CollectionRegion collectionRegion = settings.getRegionFactory().buildCollectionRegion( cacheRegionName, properties, CacheDataDescriptionImpl.decode( model ) );
accessStrategy = collectionRegion.buildAccessStrategy( accessType );
entityAccessStrategies.put( cacheRegionName, accessStrategy );
allCacheRegions.put( cacheRegionName, collectionRegion );
}
CollectionPersister persister = PersisterFactory.createCollectionPersister( cfg, model, accessStrategy, this) ;
collectionPersisters.put( model.getRole(), persister.getCollectionMetadata() );
Type indexType = persister.getIndexType();
if ( indexType != null && indexType.isAssociationType() && !indexType.isAnyType() ) {
String entityName = ( ( AssociationType ) indexType ).getAssociatedEntityName( this );
Set roles = ( Set ) tmpEntityToCollectionRoleMap.get( entityName );
if ( roles == null ) {
roles = new HashSet();
tmpEntityToCollectionRoleMap.put( entityName, roles );
}
roles.add( persister.getRole() );
}
Type elementType = persister.getElementType();
if ( elementType.isAssociationType() && !elementType.isAnyType() ) {
String entityName = ( ( AssociationType ) elementType ).getAssociatedEntityName( this );
Set roles = ( Set ) tmpEntityToCollectionRoleMap.get( entityName );
if ( roles == null ) {
roles = new HashSet();
tmpEntityToCollectionRoleMap.put( entityName, roles );
}
roles.add( persister.getRole() );
}
}
collectionMetadata = Collections.unmodifiableMap(collectionPersisters);
Iterator itr = tmpEntityToCollectionRoleMap.entrySet().iterator();
while ( itr.hasNext() ) {
final Map.Entry entry = ( Map.Entry ) itr.next();
entry.setValue( Collections.unmodifiableSet( ( Set ) entry.getValue() ) );
}
collectionRolesByEntityParticipant = Collections.unmodifiableMap( tmpEntityToCollectionRoleMap );
//Named Queries:
namedQueries = new HashMap( cfg.getNamedQueries() );
namedSqlQueries = new HashMap( cfg.getNamedSQLQueries() );
sqlResultSetMappings = new HashMap( cfg.getSqlResultSetMappings() );
imports = new HashMap( cfg.getImports() );
// after *all* persisters and named queries are registered
Iterator iter = entityPersisters.values().iterator();
while ( iter.hasNext() ) {
( (EntityPersister) iter.next() ).postInstantiate();
}
iter = collectionPersisters.values().iterator();
while ( iter.hasNext() ) {
( (CollectionPersister) iter.next() ).postInstantiate();
}
//JNDI + Serialization:
name = settings.getSessionFactoryName();
try {
uuid = (String) UUID_GENERATOR.generate(null, null);
}
catch (Exception e) {
throw new AssertionFailure("Could not generate UUID");
}
SessionFactoryObjectFactory.addInstance(uuid, name, this, properties);
log.debug("instantiated session factory");
if ( settings.isAutoCreateSchema() ) {
new SchemaExport( cfg, settings ).create( false, true );
}
if ( settings.isAutoUpdateSchema() ) {
new SchemaUpdate( cfg, settings ).execute( false, true );
}
if ( settings.isAutoValidateSchema() ) {
new SchemaValidator( cfg, settings ).validate();
}
if ( settings.isAutoDropSchema() ) {
schemaExport = new SchemaExport( cfg, settings );
}
if ( settings.getTransactionManagerLookup()!=null ) {
log.debug("obtaining JTA TransactionManager");
transactionManager = settings.getTransactionManagerLookup().getTransactionManager(properties);
}
else {
if ( settings.getTransactionFactory().isTransactionManagerRequired() ) {
throw new HibernateException("The chosen transaction strategy requires access to the JTA TransactionManager");
}
transactionManager = null;
}
currentSessionContext = buildCurrentSessionContext();
if ( settings.isQueryCacheEnabled() ) {
updateTimestampsCache = new UpdateTimestampsCache(settings, properties);
queryCache = settings.getQueryCacheFactory()
.getQueryCache(null, updateTimestampsCache, settings, properties);
queryCaches = new HashMap();
allCacheRegions.put( updateTimestampsCache.getRegion().getName(), updateTimestampsCache.getRegion() );
allCacheRegions.put( queryCache.getRegion().getName(), queryCache.getRegion() );
}
else {
updateTimestampsCache = null;
queryCache = null;
queryCaches = null;
}
//checking for named queries
if ( settings.isNamedQueryStartupCheckingEnabled() ) {
Map errors = checkNamedQueries();
if ( !errors.isEmpty() ) {
Set keys = errors.keySet();
StringBuffer failingQueries = new StringBuffer( "Errors in named queries: " );
for ( Iterator iterator = keys.iterator() ; iterator.hasNext() ; ) {
String queryName = ( String ) iterator.next();
HibernateException e = ( HibernateException ) errors.get( queryName );
failingQueries.append( queryName );
if ( iterator.hasNext() ) {
failingQueries.append( ", " );
}
log.error( "Error in named query: " + queryName, e );
}
throw new HibernateException( failingQueries.toString() );
}
}
//stats
getStatistics().setStatisticsEnabled( settings.isStatisticsEnabled() );
// EntityNotFoundDelegate
EntityNotFoundDelegate entityNotFoundDelegate = cfg.getEntityNotFoundDelegate();
if ( entityNotFoundDelegate == null ) {
entityNotFoundDelegate = new EntityNotFoundDelegate() {
public void handleEntityNotFound(String entityName, Serializable id) {
throw new ObjectNotFoundException( id, entityName );
}
};
}
this.entityNotFoundDelegate = entityNotFoundDelegate;
this.observer.sessionFactoryCreated( this );
}
public QueryPlanCache getQueryPlanCache() {
return queryPlanCache;
}
private Map checkNamedQueries() throws HibernateException {
Map errors = new HashMap();
// Check named HQL queries
log.debug("Checking " + namedQueries.size() + " named HQL queries");
Iterator itr = namedQueries.entrySet().iterator();
while ( itr.hasNext() ) {
final Map.Entry entry = ( Map.Entry ) itr.next();
final String queryName = ( String ) entry.getKey();
final NamedQueryDefinition qd = ( NamedQueryDefinition ) entry.getValue();
// this will throw an error if there's something wrong.
try {
log.debug("Checking named query: " + queryName);
//TODO: BUG! this currently fails for named queries for non-POJO entities
queryPlanCache.getHQLQueryPlan( qd.getQueryString(), false, CollectionHelper.EMPTY_MAP );
}
catch ( QueryException e ) {
errors.put( queryName, e );
}
catch ( MappingException e ) {
errors.put( queryName, e );
}
}
log.debug("Checking " + namedSqlQueries.size() + " named SQL queries");
itr = namedSqlQueries.entrySet().iterator();
while ( itr.hasNext() ) {
final Map.Entry entry = ( Map.Entry ) itr.next();
final String queryName = ( String ) entry.getKey();
final NamedSQLQueryDefinition qd = ( NamedSQLQueryDefinition ) entry.getValue();
// this will throw an error if there's something wrong.
try {
log.debug("Checking named SQL query: " + queryName);
// TODO : would be really nice to cache the spec on the query-def so as to not have to re-calc the hash;
// currently not doable though because of the resultset-ref stuff...
NativeSQLQuerySpecification spec;
if ( qd.getResultSetRef() != null ) {
ResultSetMappingDefinition definition = ( ResultSetMappingDefinition ) sqlResultSetMappings.get( qd.getResultSetRef() );
if ( definition == null ) {
throw new MappingException( "Unable to find resultset-ref definition: " + qd.getResultSetRef() );
}
spec = new NativeSQLQuerySpecification(
qd.getQueryString(),
definition.getQueryReturns(),
qd.getQuerySpaces()
);
}
else {
spec = new NativeSQLQuerySpecification(
qd.getQueryString(),
qd.getQueryReturns(),
qd.getQuerySpaces()
);
}
queryPlanCache.getNativeSQLQueryPlan( spec );
}
catch ( QueryException e ) {
errors.put( queryName, e );
}
catch ( MappingException e ) {
errors.put( queryName, e );
}
}
return errors;
}
public StatelessSession openStatelessSession() {
return new StatelessSessionImpl( null, this );
}
public StatelessSession openStatelessSession(Connection connection) {
return new StatelessSessionImpl( connection, this );
}
private SessionImpl openSession(
Connection connection,
boolean autoClose,
long timestamp,
Interceptor sessionLocalInterceptor
) {
return new SessionImpl(
connection,
this,
autoClose,
timestamp,
sessionLocalInterceptor == null ? interceptor : sessionLocalInterceptor,
settings.getDefaultEntityMode(),
settings.isFlushBeforeCompletionEnabled(),
settings.isAutoCloseSessionEnabled(),
settings.getConnectionReleaseMode()
);
}
public org.hibernate.classic.Session openSession(Connection connection, Interceptor sessionLocalInterceptor) {
return openSession(connection, false, Long.MIN_VALUE, sessionLocalInterceptor);
}
public org.hibernate.classic.Session openSession(Interceptor sessionLocalInterceptor)
throws HibernateException {
// note that this timestamp is not correct if the connection provider
// returns an older JDBC connection that was associated with a
// transaction that was already begun before openSession() was called
// (don't know any possible solution to this!)
long timestamp = settings.getRegionFactory().nextTimestamp();
return openSession( null, true, timestamp, sessionLocalInterceptor );
}
public org.hibernate.classic.Session openSession(Connection connection) {
return openSession(connection, interceptor); //prevents this session from adding things to cache
}
public org.hibernate.classic.Session openSession() throws HibernateException {
return openSession(interceptor);
}
public org.hibernate.classic.Session openTemporarySession() throws HibernateException {
return new SessionImpl(
null,
this,
true,
settings.getRegionFactory().nextTimestamp(),
interceptor,
settings.getDefaultEntityMode(),
false,
false,
ConnectionReleaseMode.AFTER_STATEMENT
);
}
public org.hibernate.classic.Session openSession(
final Connection connection,
final boolean flushBeforeCompletionEnabled,
final boolean autoCloseSessionEnabled,
final ConnectionReleaseMode connectionReleaseMode) throws HibernateException {
return new SessionImpl(
connection,
this,
true,
settings.getRegionFactory().nextTimestamp(),
interceptor,
settings.getDefaultEntityMode(),
flushBeforeCompletionEnabled,
autoCloseSessionEnabled,
connectionReleaseMode
);
}
public org.hibernate.classic.Session getCurrentSession() throws HibernateException {
if ( currentSessionContext == null ) {
throw new HibernateException( "No CurrentSessionContext configured!" );
}
return currentSessionContext.currentSession();
}
public EntityPersister getEntityPersister(String entityName) throws MappingException {
EntityPersister result = (EntityPersister) entityPersisters.get(entityName);
if (result==null) {
throw new MappingException( "Unknown entity: " + entityName );
}
return result;
}
public CollectionPersister getCollectionPersister(String role) throws MappingException {
CollectionPersister result = (CollectionPersister) collectionPersisters.get(role);
if (result==null) {
throw new MappingException( "Unknown collection role: " + role );
}
return result;
}
public Settings getSettings() {
return settings;
}
public Dialect getDialect() {
return settings.getDialect();
}
public Interceptor getInterceptor()
{
return interceptor;
}
public TransactionFactory getTransactionFactory() {
return settings.getTransactionFactory();
}
public TransactionManager getTransactionManager() {
return transactionManager;
}
public SQLExceptionConverter getSQLExceptionConverter() {
return settings.getSQLExceptionConverter();
}
public Set getCollectionRolesByEntityParticipant(String entityName) {
return ( Set ) collectionRolesByEntityParticipant.get( entityName );
}
// from javax.naming.Referenceable
public Reference getReference() throws NamingException {
log.debug("Returning a Reference to the SessionFactory");
return new Reference(
SessionFactoryImpl.class.getName(),
new StringRefAddr("uuid", uuid),
SessionFactoryObjectFactory.class.getName(),
null
);
}
private Object readResolve() throws ObjectStreamException {
log.trace("Resolving serialized SessionFactory");
// look for the instance by uuid
Object result = SessionFactoryObjectFactory.getInstance(uuid);
if (result==null) {
// in case we were deserialized in a different JVM, look for an instance with the same name
// (alternatively we could do an actual JNDI lookup here....)
result = SessionFactoryObjectFactory.getNamedInstance(name);
if (result==null) {
throw new InvalidObjectException("Could not find a SessionFactory named: " + name);
}
else {
log.debug("resolved SessionFactory by name");
}
}
else {
log.debug("resolved SessionFactory by uid");
}
return result;
}
public NamedQueryDefinition getNamedQuery(String queryName) {
return (NamedQueryDefinition) namedQueries.get(queryName);
}
public NamedSQLQueryDefinition getNamedSQLQuery(String queryName) {
return (NamedSQLQueryDefinition) namedSqlQueries.get(queryName);
}
public ResultSetMappingDefinition getResultSetMapping(String resultSetName) {
return (ResultSetMappingDefinition) sqlResultSetMappings.get(resultSetName);
}
public Type getIdentifierType(String className) throws MappingException {
return getEntityPersister(className).getIdentifierType();
}
public String getIdentifierPropertyName(String className) throws MappingException {
return getEntityPersister(className).getIdentifierPropertyName();
}
private void readObject(ObjectInputStream in) throws IOException, ClassNotFoundException {
log.trace("deserializing");
in.defaultReadObject();
log.debug("deserialized: " + uuid);
}
private void writeObject(ObjectOutputStream out) throws IOException {
log.debug("serializing: " + uuid);
out.defaultWriteObject();
log.trace("serialized");
}
public Type[] getReturnTypes(String queryString) throws HibernateException {
return queryPlanCache.getHQLQueryPlan( queryString, false, CollectionHelper.EMPTY_MAP ).getReturnMetadata().getReturnTypes();
}
public String[] getReturnAliases(String queryString) throws HibernateException {
return queryPlanCache.getHQLQueryPlan( queryString, false, CollectionHelper.EMPTY_MAP ).getReturnMetadata().getReturnAliases();
}
public ClassMetadata getClassMetadata(Class persistentClass) throws HibernateException {
return getClassMetadata( persistentClass.getName() );
}
public CollectionMetadata getCollectionMetadata(String roleName) throws HibernateException {
return (CollectionMetadata) collectionMetadata.get(roleName);
}
public ClassMetadata getClassMetadata(String entityName) throws HibernateException {
return (ClassMetadata) classMetadata.get(entityName);
}
/**
* Return the names of all persistent (mapped) classes that extend or implement the
* given class or interface, accounting for implicit/explicit polymorphism settings
* and excluding mapped subclasses/joined-subclasses of other classes in the result.
*/
public String[] getImplementors(String className) throws MappingException {
final Class clazz;
try {
clazz = ReflectHelper.classForName(className);
}
catch (ClassNotFoundException cnfe) {
return new String[] { className }; //for a dynamic-class
}
ArrayList results = new ArrayList();
Iterator iter = entityPersisters.values().iterator();
while ( iter.hasNext() ) {
//test this entity to see if we must query it
EntityPersister testPersister = (EntityPersister) iter.next();
if ( testPersister instanceof Queryable ) {
Queryable testQueryable = (Queryable) testPersister;
String testClassName = testQueryable.getEntityName();
boolean isMappedClass = className.equals(testClassName);
if ( testQueryable.isExplicitPolymorphism() ) {
if ( isMappedClass ) {
return new String[] {className}; //NOTE EARLY EXIT
}
}
else {
if (isMappedClass) {
results.add(testClassName);
}
else {
final Class mappedClass = testQueryable.getMappedClass( EntityMode.POJO );
if ( mappedClass!=null && clazz.isAssignableFrom( mappedClass ) ) {
final boolean assignableSuperclass;
if ( testQueryable.isInherited() ) {
Class mappedSuperclass = getEntityPersister( testQueryable.getMappedSuperclass() ).getMappedClass( EntityMode.POJO);
assignableSuperclass = clazz.isAssignableFrom(mappedSuperclass);
}
else {
assignableSuperclass = false;
}
if ( !assignableSuperclass ) {
results.add( testClassName );
}
}
}
}
}
}
return (String[]) results.toArray( new String[ results.size() ] );
}
public String getImportedClassName(String className) {
String result = (String) imports.get(className);
if (result==null) {
try {
ReflectHelper.classForName(className);
return className;
}
catch (ClassNotFoundException cnfe) {
return null;
}
}
else {
return result;
}
}
public Map getAllClassMetadata() throws HibernateException {
return classMetadata;
}
public Map getAllCollectionMetadata() throws HibernateException {
return collectionMetadata;
}
/**
* Closes the session factory, releasing all held resources.
*
*
* - cleans up used cache regions and "stops" the cache provider.
*
- close the JDBC connection
*
- remove the JNDI binding
*
*
* Note: Be aware that the sessionfactory instance still can
* be a "heavy" object memory wise after close() has been called. Thus
* it is important to not keep referencing the instance to let the garbage
* collector release the memory.
*/
public void close() throws HibernateException {
if ( isClosed ) {
log.trace( "already closed" );
return;
}
log.info("closing");
isClosed = true;
Iterator iter = entityPersisters.values().iterator();
while ( iter.hasNext() ) {
EntityPersister p = (EntityPersister) iter.next();
if ( p.hasCache() ) {
p.getCacheAccessStrategy().getRegion().destroy();
}
}
iter = collectionPersisters.values().iterator();
while ( iter.hasNext() ) {
CollectionPersister p = (CollectionPersister) iter.next();
if ( p.hasCache() ) {
p.getCacheAccessStrategy().getRegion().destroy();
}
}
if ( settings.isQueryCacheEnabled() ) {
queryCache.destroy();
iter = queryCaches.values().iterator();
while ( iter.hasNext() ) {
QueryCache cache = (QueryCache) iter.next();
cache.destroy();
}
updateTimestampsCache.destroy();
}
settings.getRegionFactory().stop();
try {
settings.getConnectionProvider().close();
}
finally {
SessionFactoryObjectFactory.removeInstance(uuid, name, properties);
}
if ( settings.isAutoDropSchema() ) {
schemaExport.drop( false, true );
}
observer.sessionFactoryClosed( this );
eventListeners.destroyListeners();
}
public void evictEntity(String entityName, Serializable id) throws HibernateException {
EntityPersister p = getEntityPersister( entityName );
if ( p.hasCache() ) {
if ( log.isDebugEnabled() ) {
log.debug( "evicting second-level cache: " + MessageHelper.infoString(p, id, this) );
}
CacheKey cacheKey = new CacheKey( id, p.getIdentifierType(), p.getRootEntityName(), EntityMode.POJO, this );
p.getCacheAccessStrategy().evict( cacheKey );
}
}
public void evictEntity(String entityName) throws HibernateException {
EntityPersister p = getEntityPersister( entityName );
if ( p.hasCache() ) {
if ( log.isDebugEnabled() ) {
log.debug( "evicting second-level cache: " + p.getEntityName() );
}
p.getCacheAccessStrategy().evictAll();
}
}
public void evict(Class persistentClass, Serializable id) throws HibernateException {
EntityPersister p = getEntityPersister( persistentClass.getName() );
if ( p.hasCache() ) {
if ( log.isDebugEnabled() ) {
log.debug( "evicting second-level cache: " + MessageHelper.infoString(p, id, this) );
}
CacheKey cacheKey = new CacheKey( id, p.getIdentifierType(), p.getRootEntityName(), EntityMode.POJO, this );
p.getCacheAccessStrategy().evict( cacheKey );
}
}
public void evict(Class persistentClass) throws HibernateException {
EntityPersister p = getEntityPersister( persistentClass.getName() );
if ( p.hasCache() ) {
if ( log.isDebugEnabled() ) {
log.debug( "evicting second-level cache: " + p.getEntityName() );
}
p.getCacheAccessStrategy().evictAll();
}
}
public void evictCollection(String roleName, Serializable id) throws HibernateException {
CollectionPersister p = getCollectionPersister( roleName );
if ( p.hasCache() ) {
if ( log.isDebugEnabled() ) {
log.debug( "evicting second-level cache: " + MessageHelper.collectionInfoString(p, id, this) );
}
CacheKey cacheKey = new CacheKey( id, p.getKeyType(), p.getRole(), EntityMode.POJO, this );
p.getCacheAccessStrategy().evict( cacheKey );
}
}
public void evictCollection(String roleName) throws HibernateException {
CollectionPersister p = getCollectionPersister( roleName );
if ( p.hasCache() ) {
if ( log.isDebugEnabled() ) {
log.debug( "evicting second-level cache: " + p.getRole() );
}
p.getCacheAccessStrategy().evictAll();
}
}
public Type getReferencedPropertyType(String className, String propertyName)
throws MappingException {
return getEntityPersister(className).getPropertyType(propertyName);
}
public ConnectionProvider getConnectionProvider() {
return settings.getConnectionProvider();
}
public UpdateTimestampsCache getUpdateTimestampsCache() {
return updateTimestampsCache;
}
public QueryCache getQueryCache() {
return queryCache;
}
public QueryCache getQueryCache(String regionName) throws HibernateException {
if ( regionName == null ) {
return getQueryCache();
}
if ( !settings.isQueryCacheEnabled() ) {
return null;
}
synchronized ( allCacheRegions ) {
QueryCache currentQueryCache = ( QueryCache ) queryCaches.get( regionName );
if ( currentQueryCache == null ) {
currentQueryCache = settings.getQueryCacheFactory().getQueryCache( regionName, updateTimestampsCache, settings, properties );
queryCaches.put( regionName, currentQueryCache );
allCacheRegions.put( currentQueryCache.getRegion().getName(), currentQueryCache.getRegion() );
}
return currentQueryCache;
}
}
public Region getSecondLevelCacheRegion(String regionName) {
synchronized ( allCacheRegions ) {
return ( Region ) allCacheRegions.get( regionName );
}
}
public Map getAllSecondLevelCacheRegions() {
synchronized ( allCacheRegions ) {
return new HashMap( allCacheRegions );
}
}
public boolean isClosed() {
return isClosed;
}
public Statistics getStatistics() {
return statistics;
}
public StatisticsImplementor getStatisticsImplementor() {
return statistics;
}
public void evictQueries() throws HibernateException {
if ( settings.isQueryCacheEnabled() ) {
queryCache.clear();
}
}
public void evictQueries(String cacheRegion) throws HibernateException {
if (cacheRegion==null) {
throw new NullPointerException("use the zero-argument form to evict the default query cache");
}
else {
synchronized (allCacheRegions) {
if ( settings.isQueryCacheEnabled() ) {
QueryCache currentQueryCache = (QueryCache) queryCaches.get(cacheRegion);
if ( currentQueryCache != null ) {
currentQueryCache.clear();
}
}
}
}
}
public FilterDefinition getFilterDefinition(String filterName) throws HibernateException {
FilterDefinition def = ( FilterDefinition ) filters.get( filterName );
if ( def == null ) {
throw new HibernateException( "No such filter configured [" + filterName + "]" );
}
return def;
}
public Set getDefinedFilterNames() {
return filters.keySet();
}
public BatcherFactory getBatcherFactory() {
return settings.getBatcherFactory();
}
public IdentifierGenerator getIdentifierGenerator(String rootEntityName) {
return (IdentifierGenerator) identifierGenerators.get(rootEntityName);
}
private CurrentSessionContext buildCurrentSessionContext() {
String impl = properties.getProperty( Environment.CURRENT_SESSION_CONTEXT_CLASS );
// for backward-compatability
if ( impl == null && transactionManager != null ) {
impl = "jta";
}
if ( impl == null ) {
return null;
}
else if ( "jta".equals( impl ) ) {
if ( settings.getTransactionFactory().areCallbacksLocalToHibernateTransactions() ) {
log.warn( "JTASessionContext being used with JDBCTransactionFactory; auto-flush will not operate correctly with getCurrentSession()" );
}
return new JTASessionContext( this );
}
else if ( "thread".equals( impl ) ) {
return new ThreadLocalSessionContext( this );
}
else if ( "managed".equals( impl ) ) {
return new ManagedSessionContext( this );
}
else {
try {
Class implClass = ReflectHelper.classForName( impl );
return ( CurrentSessionContext ) implClass
.getConstructor( new Class[] { SessionFactoryImplementor.class } )
.newInstance( new Object[] { this } );
}
catch( Throwable t ) {
log.error( "Unable to construct current session context [" + impl + "]", t );
return null;
}
}
}
public EventListeners getEventListeners()
{
return eventListeners;
}
public EntityNotFoundDelegate getEntityNotFoundDelegate() {
return entityNotFoundDelegate;
}
/**
* Custom serialization hook used during Session serialization.
*
* @param oos The stream to which to write the factory
* @throws IOException Indicates problems writing out the serial data stream
*/
void serialize(ObjectOutputStream oos) throws IOException {
oos.writeUTF( uuid );
oos.writeBoolean( name != null );
if ( name != null ) {
oos.writeUTF( name );
}
}
/**
* Custom deserialization hook used during Session deserialization.
*
* @param ois The stream from which to "read" the factory
* @return The deserialized factory
* @throws IOException indicates problems reading back serial data stream
* @throws ClassNotFoundException indicates problems reading back serial data stream
*/
static SessionFactoryImpl deserialize(ObjectInputStream ois) throws IOException, ClassNotFoundException {
String uuid = ois.readUTF();
boolean isNamed = ois.readBoolean();
String name = null;
if ( isNamed ) {
name = ois.readUTF();
}
Object result = SessionFactoryObjectFactory.getInstance( uuid );
if ( result == null ) {
log.trace( "could not locate session factory by uuid [" + uuid + "] during session deserialization; trying name" );
if ( isNamed ) {
result = SessionFactoryObjectFactory.getNamedInstance( name );
}
if ( result == null ) {
throw new InvalidObjectException( "could not resolve session factory during session deserialization [uuid=" + uuid + ", name=" + name + "]" );
}
}
return ( SessionFactoryImpl ) result;
}
public SQLFunctionRegistry getSqlFunctionRegistry() {
return sqlFunctionRegistry;
}
}