/*
* Hibernate, Relational Persistence for Idiomatic Java
*
* Copyright (c) 2010, Red Hat Inc. or third-party contributors as
* indicated by the @author tags or express copyright attribution
* statements applied by the authors. All third-party contributions are
* distributed under license by Red Hat Inc.
*
* This copyrighted material is made available to anyone wishing to use, modify,
* copy, or redistribute it subject to the terms and conditions of the GNU
* Lesser General Public License, as published by the Free Software Foundation.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
* or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser General Public License
* for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with this distribution; if not, write to:
* Free Software Foundation, Inc.
* 51 Franklin Street, Fifth Floor
* Boston, MA 02110-1301 USA
*/
package org.hibernate.ejb;
import javax.persistence.CacheRetrieveMode;
import javax.persistence.CacheStoreMode;
import javax.persistence.EntityExistsException;
import javax.persistence.EntityManager;
import javax.persistence.EntityNotFoundException;
import javax.persistence.EntityTransaction;
import javax.persistence.FlushModeType;
import javax.persistence.LockModeType;
import javax.persistence.LockTimeoutException;
import javax.persistence.NoResultException;
import javax.persistence.NonUniqueResultException;
import javax.persistence.OptimisticLockException;
import javax.persistence.PersistenceContextType;
import javax.persistence.PersistenceException;
import javax.persistence.PessimisticLockException;
import javax.persistence.PessimisticLockScope;
import javax.persistence.Query;
import javax.persistence.QueryTimeoutException;
import javax.persistence.TransactionRequiredException;
import javax.persistence.Tuple;
import javax.persistence.TupleElement;
import javax.persistence.TypedQuery;
import javax.persistence.criteria.CriteriaBuilder;
import javax.persistence.criteria.CriteriaQuery;
import javax.persistence.criteria.Selection;
import javax.persistence.metamodel.Metamodel;
import javax.persistence.spi.PersistenceUnitTransactionType;
import javax.transaction.Status;
import javax.transaction.SystemException;
import javax.transaction.TransactionManager;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.io.Serializable;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
import org.jboss.logging.Logger;
import org.hibernate.AssertionFailure;
import org.hibernate.CacheMode;
import org.hibernate.FlushMode;
import org.hibernate.HibernateException;
import org.hibernate.LockMode;
import org.hibernate.LockOptions;
import org.hibernate.MappingException;
import org.hibernate.ObjectDeletedException;
import org.hibernate.ObjectNotFoundException;
import org.hibernate.QueryException;
import org.hibernate.SQLQuery;
import org.hibernate.Session;
import org.hibernate.StaleObjectStateException;
import org.hibernate.StaleStateException;
import org.hibernate.TransientObjectException;
import org.hibernate.TypeMismatchException;
import org.hibernate.UnresolvableObjectException;
import org.hibernate.cfg.Environment;
import org.hibernate.ejb.criteria.CriteriaQueryCompiler;
import org.hibernate.ejb.criteria.ValueHandlerFactory;
import org.hibernate.ejb.criteria.expression.CompoundSelectionImpl;
import org.hibernate.ejb.internal.EntityManagerMessageLogger;
import org.hibernate.ejb.util.CacheModeHelper;
import org.hibernate.ejb.util.ConfigurationHelper;
import org.hibernate.ejb.util.LockModeTypeHelper;
import org.hibernate.engine.ResultSetMappingDefinition;
import org.hibernate.engine.query.spi.HQLQueryPlan;
import org.hibernate.engine.query.spi.sql.NativeSQLQueryReturn;
import org.hibernate.engine.query.spi.sql.NativeSQLQueryRootReturn;
import org.hibernate.engine.spi.NamedSQLQueryDefinition;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.engine.spi.SessionImplementor;
import org.hibernate.engine.transaction.internal.jta.JtaStatusHelper;
import org.hibernate.engine.transaction.spi.JoinStatus;
import org.hibernate.engine.transaction.spi.TransactionCoordinator;
import org.hibernate.engine.transaction.spi.TransactionImplementor;
import org.hibernate.engine.transaction.synchronization.spi.AfterCompletionAction;
import org.hibernate.engine.transaction.synchronization.spi.ExceptionMapper;
import org.hibernate.engine.transaction.synchronization.spi.ManagedFlushChecker;
import org.hibernate.engine.transaction.synchronization.spi.SynchronizationCallbackCoordinator;
import org.hibernate.internal.util.ReflectHelper;
import org.hibernate.internal.util.collections.CollectionHelper;
import org.hibernate.proxy.HibernateProxy;
import org.hibernate.service.jta.platform.spi.JtaPlatform;
import org.hibernate.transform.BasicTransformerAdapter;
import org.hibernate.type.Type;
/**
* @author <a href="mailto:gavin@hibernate.org">Gavin King</a>
* @author Emmanuel Bernard
* @author Steve Ebersole
* @author Hardy Ferentschik
*/
@SuppressWarnings("unchecked")
public abstract class AbstractEntityManagerImpl implements HibernateEntityManagerImplementor, Serializable {
private static final EntityManagerMessageLogger LOG = Logger.getMessageLogger(EntityManagerMessageLogger.class,
AbstractEntityManagerImpl.class.getName());
private static final List<String> entityManagerSpecificProperties = new ArrayList<String>();
static {
entityManagerSpecificProperties.add( AvailableSettings.LOCK_SCOPE );
entityManagerSpecificProperties.add( AvailableSettings.LOCK_TIMEOUT );
entityManagerSpecificProperties.add( AvailableSettings.FLUSH_MODE );
entityManagerSpecificProperties.add( AvailableSettings.SHARED_CACHE_RETRIEVE_MODE );
entityManagerSpecificProperties.add( AvailableSettings.SHARED_CACHE_STORE_MODE );
entityManagerSpecificProperties.add( QueryHints.SPEC_HINT_TIMEOUT );
}
private EntityManagerFactoryImpl entityManagerFactory;
protected transient TransactionImpl tx = new TransactionImpl( this );
protected PersistenceContextType persistenceContextType;
private PersistenceUnitTransactionType transactionType;
private Map<String, Object> properties;
private LockOptions lockOptions;
protected AbstractEntityManagerImpl(
EntityManagerFactoryImpl entityManagerFactory,
PersistenceContextType type,
PersistenceUnitTransactionType transactionType,
Map properties) {
this.entityManagerFactory = entityManagerFactory;
this.persistenceContextType = type;
this.transactionType = transactionType;
this.lockOptions = new LockOptions();
this.properties = new HashMap<String, Object>();
if ( properties != null ) {
for ( String key : entityManagerSpecificProperties ) {
if ( properties.containsKey( key ) ) {
this.properties.put( key, properties.get( key ) );
}
}
}
}
public PersistenceUnitTransactionType getTransactionType() {
return transactionType;
}
protected void postInit() {
//register in Sync if needed
if ( PersistenceUnitTransactionType.JTA.equals( transactionType ) ) {
joinTransaction( false );
}
setDefaultProperties();
applyProperties();
}
private void applyProperties() {
getSession().setFlushMode( ConfigurationHelper.getFlushMode( properties.get( AvailableSettings.FLUSH_MODE ) ) );
setLockOptions( this.properties, this.lockOptions );
getSession().setCacheMode(
CacheModeHelper.interpretCacheMode(
currentCacheStoreMode(),
currentCacheRetrieveMode()
)
);
}
private Query applyProperties(Query query) {
if ( lockOptions.getLockMode() != LockMode.NONE ) {
query.setLockMode( getLockMode(lockOptions.getLockMode()));
}
Object queryTimeout;
if ( (queryTimeout = getProperties().get(QueryHints.SPEC_HINT_TIMEOUT)) != null ) {
query.setHint ( QueryHints.SPEC_HINT_TIMEOUT, queryTimeout );
}
return query;
}
private CacheRetrieveMode currentCacheRetrieveMode() {
return determineCacheRetrieveMode( properties );
}
private CacheRetrieveMode determineCacheRetrieveMode(Map<String, Object> settings) {
return ( CacheRetrieveMode ) settings.get( AvailableSettings.SHARED_CACHE_RETRIEVE_MODE );
}
private CacheStoreMode currentCacheStoreMode() {
return determineCacheStoreMode( properties );
}
private CacheStoreMode determineCacheStoreMode(Map<String, Object> settings) {
return ( CacheStoreMode ) properties.get( AvailableSettings.SHARED_CACHE_STORE_MODE );
}
private void setLockOptions(Map<String, Object> props, LockOptions options) {
Object lockScope = props.get( AvailableSettings.LOCK_SCOPE );
if ( lockScope instanceof String && PessimisticLockScope.valueOf( ( String ) lockScope ) == PessimisticLockScope.EXTENDED ) {
options.setScope( true );
}
else if ( lockScope instanceof PessimisticLockScope ) {
boolean extended = PessimisticLockScope.EXTENDED.equals( lockScope );
options.setScope( extended );
}
else if ( lockScope != null ) {
throw new PersistenceException( "Unable to parse " + AvailableSettings.LOCK_SCOPE + ": " + lockScope );
}
Object lockTimeout = props.get( AvailableSettings.LOCK_TIMEOUT );
int timeout = 0;
boolean timeoutSet = false;
if ( lockTimeout instanceof String ) {
timeout = Integer.parseInt( ( String ) lockTimeout );
timeoutSet = true;
}
else if ( lockTimeout instanceof Number ) {
timeout = ( (Number) lockTimeout ).intValue();
timeoutSet = true;
}
else if ( lockTimeout != null ) {
throw new PersistenceException( "Unable to parse " + AvailableSettings.LOCK_TIMEOUT + ": " + lockTimeout );
}
if ( timeoutSet ) {
if ( timeout < 0 ) {
options.setTimeOut( LockOptions.WAIT_FOREVER );
}
else if ( timeout == 0 ) {
options.setTimeOut( LockOptions.NO_WAIT );
}
else {
options.setTimeOut( timeout );
}
}
}
/**
* Sets the default property values for the properties the entity manager supports and which are not already explicitly
* set.
*/
private void setDefaultProperties() {
if ( properties.get( AvailableSettings.FLUSH_MODE ) == null ) {
properties.put( AvailableSettings.FLUSH_MODE, getSession().getFlushMode().toString() );
}
if ( properties.get( AvailableSettings.LOCK_SCOPE ) == null ) {
this.properties.put( AvailableSettings.LOCK_SCOPE, PessimisticLockScope.EXTENDED.name() );
}
if ( properties.get( AvailableSettings.LOCK_TIMEOUT ) == null ) {
properties.put( AvailableSettings.LOCK_TIMEOUT, LockOptions.WAIT_FOREVER );
}
if ( properties.get( AvailableSettings.SHARED_CACHE_RETRIEVE_MODE ) == null ) {
properties.put( AvailableSettings.SHARED_CACHE_RETRIEVE_MODE, CacheModeHelper.DEFAULT_RETRIEVE_MODE );
}
if ( properties.get( AvailableSettings.SHARED_CACHE_STORE_MODE ) == null ) {
properties.put( AvailableSettings.SHARED_CACHE_STORE_MODE, CacheModeHelper.DEFAULT_STORE_MODE );
}
}
public Query createQuery(String jpaqlString) {
try {
return applyProperties( new QueryImpl<Object>( getSession().createQuery( jpaqlString ), this ) );
}
catch ( HibernateException he ) {
throw convert( he );
}
}
public <T> TypedQuery<T> createQuery(String jpaqlString, Class<T> resultClass) {
try {
// do the translation
org.hibernate.Query hqlQuery = getSession().createQuery( jpaqlString );
// do some validation checking
if ( Object[].class.equals( resultClass ) ) {
// no validation needed
}
else if ( Tuple.class.equals( resultClass ) ) {
TupleBuilderTransformer tupleTransformer = new TupleBuilderTransformer( hqlQuery );
hqlQuery.setResultTransformer( tupleTransformer );
}
else {
final HQLQueryPlan queryPlan = unwrap( SessionImplementor.class )
.getFactory()
.getQueryPlanCache()
.getHQLQueryPlan( jpaqlString, false, null );
final Class dynamicInstantiationClass = queryPlan.getDynamicInstantiationResultType();
if ( dynamicInstantiationClass != null ) {
if ( ! resultClass.isAssignableFrom( dynamicInstantiationClass ) ) {
throw new IllegalArgumentException(
"Mismatch in requested result type [" + resultClass.getName() +
"] and actual result type [" + dynamicInstantiationClass.getName() + "]"
);
}
}
else if ( hqlQuery.getReturnTypes().length == 1 ) {
// if we have only a single return expression, its java type should match with the requested type
if ( !resultClass.isAssignableFrom( hqlQuery.getReturnTypes()[0].getReturnedClass() ) ) {
throw new IllegalArgumentException(
"Type specified for TypedQuery [" +
resultClass.getName() +
"] is incompatible with query return type [" +
hqlQuery.getReturnTypes()[0].getReturnedClass() + "]"
);
}
}
else {
throw new IllegalArgumentException(
"Cannot create TypedQuery for query with more than one return using requested result type [" +
resultClass.getName() + "]"
);
}
}
// finally, build/return the query instance
return new QueryImpl<T>( hqlQuery, this );
}
catch ( HibernateException he ) {
throw convert( he );
}
}
public static class TupleBuilderTransformer extends BasicTransformerAdapter {
private List<TupleElement<?>> tupleElements;
private Map<String,HqlTupleElementImpl> tupleElementsByAlias;
public TupleBuilderTransformer(org.hibernate.Query hqlQuery) {
final Type[] resultTypes = hqlQuery.getReturnTypes();
final int tupleSize = resultTypes.length;
this.tupleElements = CollectionHelper.arrayList( tupleSize );
final String[] aliases = hqlQuery.getReturnAliases();
final boolean hasAliases = aliases != null && aliases.length > 0;
this.tupleElementsByAlias = hasAliases
? CollectionHelper.<String, HqlTupleElementImpl>mapOfSize( tupleSize )
: Collections.<String, HqlTupleElementImpl>emptyMap();
for ( int i = 0; i < tupleSize; i++ ) {
final HqlTupleElementImpl tupleElement = new HqlTupleElementImpl(
i,
aliases == null ? null : aliases[i],
resultTypes[i]
);
tupleElements.add( tupleElement );
if ( hasAliases ) {
final String alias = aliases[i];
if ( alias != null ) {
tupleElementsByAlias.put( alias, tupleElement );
}
}
}
}
@Override
public Object transformTuple(Object[] tuple, String[] aliases) {
if ( tuple.length != tupleElements.size() ) {
throw new IllegalArgumentException(
"Size mismatch between tuple result [" + tuple.length + "] and expected tuple elements [" +
tupleElements.size() + "]"
);
}
return new HqlTupleImpl( tuple );
}
public static class HqlTupleElementImpl<X> implements TupleElement<X> {
private final int position;
private final String alias;
private final Type hibernateType;
public HqlTupleElementImpl(int position, String alias, Type hibernateType) {
this.position = position;
this.alias = alias;
this.hibernateType = hibernateType;
}
@Override
public Class getJavaType() {
return hibernateType.getReturnedClass();
}
@Override
public String getAlias() {
return alias;
}
public int getPosition() {
return position;
}
public Type getHibernateType() {
return hibernateType;
}
}
public class HqlTupleImpl implements Tuple {
private Object[] tuple;
public HqlTupleImpl(Object[] tuple) {
this.tuple = tuple;
}
@Override
public <X> X get(String alias, Class<X> type) {
return (X) get( alias );
}
@Override
public Object get(String alias) {
HqlTupleElementImpl tupleElement = tupleElementsByAlias.get( alias );
if ( tupleElement == null ) {
throw new IllegalArgumentException( "Unknown alias [" + alias + "]" );
}
return tuple[ tupleElement.getPosition() ];
}
@Override
public <X> X get(int i, Class<X> type) {
return (X) get( i );
}
@Override
public Object get(int i) {
if ( i < 0 ) {
throw new IllegalArgumentException( "requested tuple index must be greater than zero" );
}
if ( i > tuple.length ) {
throw new IllegalArgumentException( "requested tuple index exceeds actual tuple size" );
}
return tuple[i];
}
@Override
public Object[] toArray() {
// todo : make a copy?
return tuple;
}
@Override
public List<TupleElement<?>> getElements() {
return tupleElements;
}
@Override
public <X> X get(TupleElement<X> tupleElement) {
if ( HqlTupleElementImpl.class.isInstance( tupleElement ) ) {
return get( ( (HqlTupleElementImpl) tupleElement ).getPosition(), tupleElement.getJavaType() );
}
else {
return get( tupleElement.getAlias(), tupleElement.getJavaType() );
}
}
}
}
public <T> TypedQuery<T> createQuery(
String jpaqlString,
Class<T> resultClass,
Selection selection,
Options options) {
try {
org.hibernate.Query hqlQuery = getSession().createQuery( jpaqlString );
if ( options.getValueHandlers() == null ) {
options.getResultMetadataValidator().validate( hqlQuery.getReturnTypes() );
}
// determine if we need a result transformer
List tupleElements = Tuple.class.equals( resultClass )
? ( ( CompoundSelectionImpl<Tuple> ) selection ).getCompoundSelectionItems()
: null;
if ( options.getValueHandlers() != null || tupleElements != null ) {
hqlQuery.setResultTransformer(
new CriteriaQueryTransformer( options.getValueHandlers(), tupleElements )
);
}
return new QueryImpl<T>( hqlQuery, this, options.getNamedParameterExplicitTypes() );
}
catch ( HibernateException he ) {
throw convert( he );
}
}
private static class CriteriaQueryTransformer extends BasicTransformerAdapter {
private final List<ValueHandlerFactory.ValueHandler> valueHandlers;
private final List tupleElements;
private CriteriaQueryTransformer(List<ValueHandlerFactory.ValueHandler> valueHandlers, List tupleElements) {
// todo : should these 2 sizes match *always*?
this.valueHandlers = valueHandlers;
this.tupleElements = tupleElements;
}
@Override
public Object transformTuple(Object[] tuple, String[] aliases) {
final Object[] valueHandlerResult;
if ( valueHandlers == null ) {
valueHandlerResult = tuple;
}
else {
valueHandlerResult = new Object[tuple.length];
for ( int i = 0; i < tuple.length; i++ ) {
ValueHandlerFactory.ValueHandler valueHandler = valueHandlers.get( i );
valueHandlerResult[i] = valueHandler == null
? tuple[i]
: valueHandler.convert( tuple[i] );
}
}
return tupleElements == null
? valueHandlerResult.length == 1 ? valueHandlerResult[0] : valueHandlerResult
: new TupleImpl( tuple );
}
private class TupleImpl implements Tuple {
private final Object[] tuples;
private TupleImpl(Object[] tuples) {
if ( tuples.length != tupleElements.size() ) {
throw new IllegalArgumentException(
"Size mismatch between tuple result [" + tuples.length
+ "] and expected tuple elements [" + tupleElements.size() + "]"
);
}
this.tuples = tuples;
}
public <X> X get(TupleElement<X> tupleElement) {
int index = tupleElements.indexOf( tupleElement );
if ( index < 0 ) {
throw new IllegalArgumentException(
"Requested tuple element did not correspond to element in the result tuple"
);
}
// index should be "in range" by nature of size check in ctor
return ( X ) tuples[index];
}
public Object get(String alias) {
int index = -1;
if ( alias != null ) {
alias = alias.trim();
if ( alias.length() > 0 ) {
int i = 0;
for ( TupleElement selection : ( List<TupleElement> ) tupleElements ) {
if ( alias.equals( selection.getAlias() ) ) {
index = i;
break;
}
i++;
}
}
}
if ( index < 0 ) {
throw new IllegalArgumentException(
"Given alias [" + alias + "] did not correspond to an element in the result tuple"
);
}
// index should be "in range" by nature of size check in ctor
return tuples[index];
}
public <X> X get(String alias, Class<X> type) {
return ( X ) get( alias );
}
public Object get(int i) {
if ( i >= tuples.length ) {
throw new IllegalArgumentException(
"Given index [" + i + "] was outside the range of result tuple size [" + tuples.length + "] "
);
}
return tuples[i];
}
public <X> X get(int i, Class<X> type) {
return ( X ) get( i );
}
public Object[] toArray() {
return tuples;
}
public List<TupleElement<?>> getElements() {
return tupleElements;
}
}
}
private CriteriaQueryCompiler criteriaQueryCompiler;
public <T> TypedQuery<T> createQuery(CriteriaQuery<T> criteriaQuery) {
if ( criteriaQueryCompiler == null ) {
criteriaQueryCompiler = new CriteriaQueryCompiler( this );
}
return criteriaQueryCompiler.compile( criteriaQuery );
}
public Query createNamedQuery(String name) {
try {
org.hibernate.Query namedQuery = getSession().getNamedQuery( name );
try {
return new QueryImpl( namedQuery, this );
}
catch ( HibernateException he ) {
throw convert( he );
}
}
catch ( MappingException e ) {
throw new IllegalArgumentException( "Named query not found: " + name );
}
}
public <T> TypedQuery<T> createNamedQuery(String name, Class<T> resultClass) {
try {
/*
* Get the named query.
* If the named query is a SQL query, get the expected returned type from the query definition
* or its associated result set mapping
* If the named query is a HQL query, use getReturnType()
*/
org.hibernate.Query namedQuery = getSession().getNamedQuery( name );
//TODO clean this up to avoid downcasting
final SessionFactoryImplementor factoryImplementor = ( SessionFactoryImplementor ) entityManagerFactory.getSessionFactory();
final NamedSQLQueryDefinition queryDefinition = factoryImplementor.getNamedSQLQuery( name );
try {
if ( queryDefinition != null ) {
Class<?> actualReturnedClass;
final NativeSQLQueryReturn[] queryReturns;
if ( queryDefinition.getQueryReturns() != null ) {
queryReturns = queryDefinition.getQueryReturns();
}
else if ( queryDefinition.getResultSetRef() != null ) {
final ResultSetMappingDefinition rsMapping = factoryImplementor.getResultSetMapping(
queryDefinition.getResultSetRef()
);
queryReturns = rsMapping.getQueryReturns();
}
else {
throw new AssertionFailure( "Unsupported named query model. Please report the bug in Hibernate EntityManager");
}
if ( queryReturns.length > 1 ) {
throw new IllegalArgumentException( "Cannot create TypedQuery for query with more than one return" );
}
final NativeSQLQueryReturn nativeSQLQueryReturn = queryReturns[0];
if ( nativeSQLQueryReturn instanceof NativeSQLQueryRootReturn ) {
final String entityClassName = ( ( NativeSQLQueryRootReturn ) nativeSQLQueryReturn ).getReturnEntityName();
try {
actualReturnedClass = ReflectHelper.classForName( entityClassName, AbstractEntityManagerImpl.class );
}
catch ( ClassNotFoundException e ) {
throw new AssertionFailure( "Unable to instantiate class declared on named native query: " + name + " " + entityClassName );
}
if ( !resultClass.isAssignableFrom( actualReturnedClass ) ) {
throw buildIncompatibleException( resultClass, actualReturnedClass );
}
}
else {
//TODO support other NativeSQLQueryReturn type. For now let it go.
}
}
else {
if ( namedQuery.getReturnTypes().length != 1 ) {
throw new IllegalArgumentException( "Cannot create TypedQuery for query with more than one return" );
}
if ( !resultClass.isAssignableFrom( namedQuery.getReturnTypes()[0].getReturnedClass() ) ) {
throw buildIncompatibleException( resultClass, namedQuery.getReturnTypes()[0].getReturnedClass() );
}
}
return new QueryImpl<T>( namedQuery, this );
}
catch ( HibernateException he ) {
throw convert( he );
}
}
catch ( MappingException e ) {
throw new IllegalArgumentException( "Named query not found: " + name );
}
}
private IllegalArgumentException buildIncompatibleException(Class<?> resultClass, Class<?> actualResultClass) {
return new IllegalArgumentException(
"Type specified for TypedQuery [" +
resultClass.getName() +
"] is incompatible with query return type [" +
actualResultClass + "]"
);
}
public Query createNativeQuery(String sqlString) {
try {
SQLQuery q = getSession().createSQLQuery( sqlString );
return new QueryImpl( q, this );
}
catch ( HibernateException he ) {
throw convert( he );
}
}
public Query createNativeQuery(String sqlString, Class resultClass) {
try {
SQLQuery q = getSession().createSQLQuery( sqlString );
q.addEntity( "alias1", resultClass.getName(), LockMode.READ );
return new QueryImpl( q, this );
}
catch ( HibernateException he ) {
throw convert( he );
}
}
public Query createNativeQuery(String sqlString, String resultSetMapping) {
try {
SQLQuery q = getSession().createSQLQuery( sqlString );
q.setResultSetMapping( resultSetMapping );
return new QueryImpl( q, this );
}
catch ( HibernateException he ) {
throw convert( he );
}
}
@SuppressWarnings("unchecked")
public <T> T getReference(Class<T> entityClass, Object primaryKey) {
try {
return ( T ) getSession().load( entityClass, ( Serializable ) primaryKey );
}
catch ( MappingException e ) {
throw new IllegalArgumentException( e.getMessage(), e );
}
catch ( TypeMismatchException e ) {
throw new IllegalArgumentException( e.getMessage(), e );
}
catch ( ClassCastException e ) {
throw new IllegalArgumentException( e.getMessage(), e );
}
catch ( HibernateException he ) {
throw convert( he );
}
}
@SuppressWarnings("unchecked")
public <A> A find(Class<A> entityClass, Object primaryKey) {
return find( entityClass, primaryKey, null, null );
}
public <T> T find(Class<T> entityClass, Object primaryKey, Map<String, Object> properties) {
return find( entityClass, primaryKey, null, properties );
}
@SuppressWarnings("unchecked")
public <A> A find(Class<A> entityClass, Object primaryKey, LockModeType lockModeType) {
return find( entityClass, primaryKey, lockModeType, null );
}
public <A> A find(Class<A> entityClass, Object primaryKey, LockModeType lockModeType, Map<String, Object> properties) {
CacheMode previousCacheMode = getSession().getCacheMode();
CacheMode cacheMode = determineAppropriateLocalCacheMode( properties );
LockOptions lockOptions = null;
try {
getSession().setCacheMode( cacheMode );
if ( lockModeType != null ) {
return ( A ) getSession().get(
entityClass, ( Serializable ) primaryKey,
getLockRequest( lockModeType, properties )
);
}
else {
return ( A ) getSession().get( entityClass, ( Serializable ) primaryKey );
}
}
catch ( ObjectDeletedException e ) {
//the spec is silent about people doing remove() find() on the same PC
return null;
}
catch ( ObjectNotFoundException e ) {
//should not happen on the entity itself with get
throw new IllegalArgumentException( e.getMessage(), e );
}
catch ( MappingException e ) {
throw new IllegalArgumentException( e.getMessage(), e );
}
catch ( TypeMismatchException e ) {
throw new IllegalArgumentException( e.getMessage(), e );
}
catch ( ClassCastException e ) {
throw new IllegalArgumentException( e.getMessage(), e );
}
catch ( HibernateException he ) {
throw convert( he, lockOptions );
}
finally {
getSession().setCacheMode( previousCacheMode );
}
}
public CacheMode determineAppropriateLocalCacheMode(Map<String, Object> localProperties) {
CacheRetrieveMode retrieveMode = null;
CacheStoreMode storeMode = null;
if ( localProperties != null ) {
retrieveMode = determineCacheRetrieveMode( localProperties );
storeMode = determineCacheStoreMode( localProperties );
}
if ( retrieveMode == null ) {
// use the EM setting
retrieveMode = determineCacheRetrieveMode( this.properties );
}
if ( storeMode == null ) {
// use the EM setting
storeMode = determineCacheStoreMode( this.properties );
}
return CacheModeHelper.interpretCacheMode( storeMode, retrieveMode );
}
private void checkTransactionNeeded() {
if ( persistenceContextType == PersistenceContextType.TRANSACTION && !isTransactionInProgress() ) {
//no need to mark as rollback, no tx in progress
throw new TransactionRequiredException(
"no transaction is in progress for a TRANSACTION type persistence context"
);
}
}
public void persist(Object entity) {
checkTransactionNeeded();
try {
getSession().persist( entity );
}
catch ( MappingException e ) {
throw new IllegalArgumentException( e.getMessage() );
}
catch ( RuntimeException e ) {
throw convert( e );
}
}
@SuppressWarnings("unchecked")
public <A> A merge(A entity) {
checkTransactionNeeded();
try {
return ( A ) getSession().merge( entity );
}
catch ( ObjectDeletedException sse ) {
throw new IllegalArgumentException( sse );
}
catch ( MappingException e ) {
throw new IllegalArgumentException( e.getMessage(), e );
}
catch ( RuntimeException e ) { //including HibernateException
throw convert( e );
}
}
public void remove(Object entity) {
checkTransactionNeeded();
try {
getSession().delete( entity );
}
catch ( MappingException e ) {
throw new IllegalArgumentException( e.getMessage(), e );
}
catch ( RuntimeException e ) { //including HibernateException
throw convert( e );
}
}
public void refresh(Object entity) {
refresh( entity, null, null );
}
public void refresh(Object entity, Map<String, Object> properties) {
refresh( entity, null, properties );
}
public void refresh(Object entity, LockModeType lockModeType) {
refresh( entity, lockModeType, null );
}
public void refresh(Object entity, LockModeType lockModeType, Map<String, Object> properties) {
checkTransactionNeeded();
CacheMode previousCacheMode = getSession().getCacheMode();
CacheMode localCacheMode = determineAppropriateLocalCacheMode( properties );
LockOptions lockOptions = null;
try {
getSession().setCacheMode( localCacheMode );
if ( !getSession().contains( entity ) ) {
throw new IllegalArgumentException( "Entity not managed" );
}
if ( lockModeType != null ) {
getSession().refresh( entity, ( lockOptions = getLockRequest( lockModeType, properties ) ) );
}
else {
getSession().refresh( entity );
}
}
catch ( MappingException e ) {
throw new IllegalArgumentException( e.getMessage(), e );
}
catch ( HibernateException he ) {
throw convert( he, lockOptions );
}
finally {
getSession().setCacheMode( previousCacheMode );
}
}
public boolean contains(Object entity) {
try {
if ( entity != null
&& !( entity instanceof HibernateProxy )
&& getSession().getSessionFactory().getClassMetadata( entity.getClass() ) == null ) {
throw new IllegalArgumentException( "Not an entity:" + entity.getClass() );
}
return getSession().contains( entity );
}
catch ( MappingException e ) {
throw new IllegalArgumentException( e.getMessage(), e );
}
catch ( HibernateException he ) {
throw convert( he );
}
}
public LockModeType getLockMode(Object entity) {
if ( !contains( entity ) ) {
throw new IllegalArgumentException( "entity not in the persistence context" );
}
return getLockModeType( getSession().getCurrentLockMode( entity ) );
}
public void setProperty(String s, Object o) {
if ( entityManagerSpecificProperties.contains( s ) ) {
properties.put( s, o );
applyProperties();
} else LOG.debugf("Trying to set a property which is not supported on entity manager level");
}
public Map<String, Object> getProperties() {
return Collections.unmodifiableMap( properties );
}
public void flush() {
if ( !isTransactionInProgress() ) {
throw new TransactionRequiredException( "no transaction is in progress" );
}
try {
getSession().flush();
}
catch ( RuntimeException e ) {
throw convert( e );
}
}
/**
* return a Session
*
* @throws IllegalStateException if the entity manager is closed
*/
public abstract Session getSession();
/**
* Return a Session (even if the entity manager is closed).
*
* @return A session.
*/
protected abstract Session getRawSession();
public EntityTransaction getTransaction() {
if ( transactionType == PersistenceUnitTransactionType.JTA ) {
throw new IllegalStateException( "A JTA EntityManager cannot use getTransaction()" );
}
return tx;
}
/**
* {@inheritDoc}
*/
public EntityManagerFactoryImpl getEntityManagerFactory() {
return entityManagerFactory;
}
/**
* {@inheritDoc}
*/
public HibernateEntityManagerFactory getFactory() {
return entityManagerFactory;
}
/**
* {@inheritDoc}
*/
public CriteriaBuilder getCriteriaBuilder() {
return getEntityManagerFactory().getCriteriaBuilder();
}
/**
* {@inheritDoc}
*/
public Metamodel getMetamodel() {
return getEntityManagerFactory().getMetamodel();
}
public void setFlushMode(FlushModeType flushModeType) {
if ( flushModeType == FlushModeType.AUTO ) {
getSession().setFlushMode( FlushMode.AUTO );
}
else if ( flushModeType == FlushModeType.COMMIT ) {
getSession().setFlushMode( FlushMode.COMMIT );
}
else {
throw new AssertionFailure( "Unknown FlushModeType: " + flushModeType );
}
}
public void clear() {
try {
getSession().clear();
}
catch ( HibernateException he ) {
throw convert( he );
}
}
public void detach(Object entity) {
try {
getSession().evict( entity );
}
catch ( HibernateException he ) {
throw convert( he );
}
}
/**
* Hibernate can be set in various flush modes that are unknown to
* JPA 2.0. This method can then return null.
* If it returns null, do em.unwrap(Session.class).getFlushMode() to get the
* Hibernate flush mode
*/
public FlushModeType getFlushMode() {
FlushMode mode = getSession().getFlushMode();
if ( mode == FlushMode.AUTO ) {
return FlushModeType.AUTO;
}
else if ( mode == FlushMode.COMMIT ) {
return FlushModeType.COMMIT;
}
else {
// otherwise this is an unknown mode for EJB3
return null;
}
}
public void lock(Object entity, LockModeType lockMode) {
lock( entity, lockMode, null );
}
public void lock(Object entity, LockModeType lockModeType, Map<String, Object> properties) {
LockOptions lockOptions = null;
if ( !isTransactionInProgress() ) {
throw new TransactionRequiredException( "no transaction is in progress" );
}
try {
if ( !contains( entity ) ) {
throw new IllegalArgumentException( "entity not in the persistence context" );
}
getSession().buildLockRequest( ( lockOptions = getLockRequest( lockModeType, properties ) ) )
.lock( entity );
}
catch ( HibernateException he ) {
throw convert( he, lockOptions );
}
}
public LockOptions getLockRequest(LockModeType lockModeType, Map<String, Object> properties) {
LockOptions lockOptions = new LockOptions();
LockOptions.copy( this.lockOptions, lockOptions );
lockOptions.setLockMode( getLockMode( lockModeType ) );
if ( properties != null ) {
setLockOptions( properties, lockOptions );
}
return lockOptions;
}
@SuppressWarnings("deprecation")
private static LockModeType getLockModeType(LockMode lockMode) {
//TODO check that if we have UPGRADE_NOWAIT we have a timeout of zero?
return LockModeTypeHelper.getLockModeType( lockMode );
}
private static LockMode getLockMode(LockModeType lockMode) {
return LockModeTypeHelper.getLockMode( lockMode );
}
public boolean isTransactionInProgress() {
return ( ( SessionImplementor ) getRawSession() ).isTransactionInProgress();
}
private SessionFactoryImplementor sfi() {
return (SessionFactoryImplementor) getRawSession().getSessionFactory();
}
protected void markAsRollback() {
LOG.debugf("Mark transaction for rollback");
if ( tx.isActive() ) {
tx.setRollbackOnly();
}
else {
//no explicit use of the tx. boundaries methods
if ( PersistenceUnitTransactionType.JTA == transactionType ) {
TransactionManager transactionManager = sfi().getServiceRegistry().getService( JtaPlatform.class ).retrieveTransactionManager();
if ( transactionManager == null ) {
throw new PersistenceException(
"Using a JTA persistence context wo setting hibernate.transaction.manager_lookup_class"
);
}
try {
if ( transactionManager.getStatus() != Status.STATUS_NO_TRANSACTION ) {
transactionManager.setRollbackOnly();
}
}
catch ( SystemException e ) {
throw new PersistenceException( "Unable to set the JTA transaction as RollbackOnly", e );
}
}
}
}
public void joinTransaction() {
if( !isOpen() ){
throw new IllegalStateException( "EntityManager is closed" );
}
joinTransaction( true );
}
public <T> T unwrap(Class<T> clazz) {
if ( Session.class.isAssignableFrom( clazz ) ) {
return ( T ) getSession();
}
if ( SessionImplementor.class.isAssignableFrom( clazz ) ) {
return ( T ) getSession();
}
if ( EntityManager.class.isAssignableFrom( clazz ) ) {
return ( T ) this;
}
throw new PersistenceException( "Hibernate cannot unwrap " + clazz );
}
private void joinTransaction(boolean explicitRequest) {
if ( transactionType != PersistenceUnitTransactionType.JTA ) {
if ( explicitRequest ) {
LOG.callingJoinTransactionOnNonJtaEntityManager();
}
return;
}
final SessionImplementor session = (SessionImplementor) getSession();
final TransactionCoordinator transactionCoordinator = session.getTransactionCoordinator();
final TransactionImplementor transaction = transactionCoordinator.getTransaction();
transaction.markForJoin();
transactionCoordinator.pulse();
LOG.debug( "Looking for a JTA transaction to join" );
if ( ! transactionCoordinator.isTransactionJoinable() ) {
if ( explicitRequest ) {
// if this is an explicit join request, log a warning so user can track underlying cause
// of subsequent exceptions/messages
LOG.unableToJoinTransaction(Environment.TRANSACTION_STRATEGY);
}
}
try {
if ( transaction.getJoinStatus() == JoinStatus.JOINED ) {
LOG.debug( "Transaction already joined" );
return; // noop
}
// join the transaction and then recheck the status
transaction.join();
if ( transaction.getJoinStatus() == JoinStatus.NOT_JOINED ) {
if ( explicitRequest ) {
throw new TransactionRequiredException( "No active JTA transaction on joinTransaction call" );
}
else {
LOG.debug( "Unable to join JTA transaction" );
return;
}
}
else if ( transaction.getJoinStatus() == JoinStatus.MARKED_FOR_JOINED ) {
throw new AssertionFailure( "Transaction MARKED_FOR_JOINED after isOpen() call" );
}
// register behavior changes
SynchronizationCallbackCoordinator callbackCoordinator = transactionCoordinator.getSynchronizationCallbackCoordinator();
callbackCoordinator.setManagedFlushChecker( new ManagedFlushCheckerImpl() );
callbackCoordinator.setExceptionMapper( new CallbackExceptionMapperImpl() );
callbackCoordinator.setAfterCompletionAction( new AfterCompletionActionImpl( session, transactionType ) );
}
catch ( HibernateException he ) {
throw convert( he );
}
}
/**
* returns the underlying session
*/
public Object getDelegate() {
return getSession();
}
private void writeObject(ObjectOutputStream oos) throws IOException {
oos.defaultWriteObject();
}
private void readObject(ObjectInputStream ois) throws IOException, ClassNotFoundException {
ois.defaultReadObject();
tx = new TransactionImpl( this );
}
/**
* {@inheritDoc}
*/
public void handlePersistenceException(PersistenceException e) {
if ( e instanceof NoResultException ) {
return;
}
if ( e instanceof NonUniqueResultException ) {
return;
}
if ( e instanceof LockTimeoutException ) {
return;
}
if ( e instanceof QueryTimeoutException ) {
return;
}
try {
markAsRollback();
}
catch ( Exception ne ) {
//we do not want the subsequent exception to swallow the original one
LOG.unableToMarkForRollbackOnPersistenceException(ne);
}
}
/**
* {@inheritDoc}
*/
public void throwPersistenceException(PersistenceException e) {
handlePersistenceException( e );
throw e;
}
/**
* {@inheritDoc}
*/
//FIXME should we remove all calls to this method and use convert(RuntimeException) ?
public RuntimeException convert(HibernateException e) {
return convert( e, null );
}
public RuntimeException convert(RuntimeException e) {
RuntimeException result = e;
if ( e instanceof HibernateException ) {
result = convert( ( HibernateException ) e );
}
else {
markAsRollback();
}
return result;
}
/**
* {@inheritDoc}
*/
public RuntimeException convert(HibernateException e, LockOptions lockOptions) {
if ( e instanceof StaleStateException ) {
PersistenceException converted = wrapStaleStateException( ( StaleStateException ) e );
handlePersistenceException( converted );
return converted;
}
else if ( e instanceof org.hibernate.OptimisticLockException ) {
PersistenceException converted = wrapLockException( e, lockOptions );
handlePersistenceException( converted );
return converted;
}
else if ( e instanceof org.hibernate.PessimisticLockException ) {
PersistenceException converted = wrapLockException( e, lockOptions );
handlePersistenceException( converted );
return converted;
}
else if ( e instanceof org.hibernate.QueryTimeoutException ) {
QueryTimeoutException converted = new QueryTimeoutException(e.getMessage(), e);
handlePersistenceException( converted );
return converted;
}
else if ( e instanceof ObjectNotFoundException ) {
EntityNotFoundException converted = new EntityNotFoundException( e.getMessage() );
handlePersistenceException( converted );
return converted;
}
else if ( e instanceof org.hibernate.NonUniqueObjectException ) {
EntityExistsException converted = new EntityExistsException( e.getMessage() );
handlePersistenceException( converted );
return converted;
}
else if ( e instanceof org.hibernate.NonUniqueResultException ) {
NonUniqueResultException converted = new NonUniqueResultException( e.getMessage() );
handlePersistenceException( converted );
return converted;
}
else if ( e instanceof UnresolvableObjectException ) {
EntityNotFoundException converted = new EntityNotFoundException( e.getMessage() );
handlePersistenceException( converted );
return converted;
}
else if ( e instanceof QueryException ) {
return new IllegalArgumentException( e );
}
else if ( e instanceof TransientObjectException ) {
try {
markAsRollback();
}
catch ( Exception ne ) {
//we do not want the subsequent exception to swallow the original one
LOG.unableToMarkForRollbackOnTransientObjectException(ne);
}
return new IllegalStateException( e ); //Spec 3.2.3 Synchronization rules
}
else {
PersistenceException converted = new PersistenceException( e );
handlePersistenceException( converted );
return converted;
}
}
/**
* {@inheritDoc}
*/
public void throwPersistenceException(HibernateException e) {
throw convert( e );
}
/**
* {@inheritDoc}
*/
public PersistenceException wrapStaleStateException(StaleStateException e) {
PersistenceException pe;
if ( e instanceof StaleObjectStateException ) {
StaleObjectStateException sose = ( StaleObjectStateException ) e;
Serializable identifier = sose.getIdentifier();
if ( identifier != null ) {
try {
Object entity = getRawSession().load( sose.getEntityName(), identifier );
if ( entity instanceof Serializable ) {
//avoid some user errors regarding boundary crossing
pe = new OptimisticLockException( null, e, entity );
}
else {
pe = new OptimisticLockException( e );
}
}
catch ( EntityNotFoundException enfe ) {
pe = new OptimisticLockException( e );
}
}
else {
pe = new OptimisticLockException( e );
}
}
else {
pe = new OptimisticLockException( e );
}
return pe;
}
public PersistenceException wrapLockException(HibernateException e, LockOptions lockOptions) {
PersistenceException pe;
if ( e instanceof org.hibernate.OptimisticLockException ) {
org.hibernate.OptimisticLockException ole = ( org.hibernate.OptimisticLockException ) e;
pe = new OptimisticLockException( ole.getMessage(), ole, ole.getEntity() );
}
else if ( e instanceof org.hibernate.PessimisticLockException ) {
org.hibernate.PessimisticLockException ple = ( org.hibernate.PessimisticLockException ) e;
if ( lockOptions != null && lockOptions.getTimeOut() > -1 ) {
// assume lock timeout occurred if a timeout or NO WAIT was specified
pe = new LockTimeoutException( ple.getMessage(), ple, ple.getEntity() );
}
else {
pe = new PessimisticLockException( ple.getMessage(), ple, ple.getEntity() );
}
}
else {
pe = new OptimisticLockException( e );
}
return pe;
}
private static class AfterCompletionActionImpl implements AfterCompletionAction {
private final SessionImplementor session;
private final PersistenceUnitTransactionType transactionType;
private AfterCompletionActionImpl(SessionImplementor session, PersistenceUnitTransactionType transactionType) {
this.session = session;
this.transactionType = transactionType;
}
@Override
public void doAction(TransactionCoordinator transactionCoordinator, int status) {
if ( session.isClosed() ) {
LOG.trace("Session was closed; nothing to do");
return;
}
final boolean successful = JtaStatusHelper.isCommitted( status );
if ( !successful && transactionType == PersistenceUnitTransactionType.JTA ) {
( (Session) session ).clear();
}
session.getTransactionCoordinator().resetJoinStatus();
}
}
private static class ManagedFlushCheckerImpl implements ManagedFlushChecker {
@Override
public boolean shouldDoManagedFlush(TransactionCoordinator coordinator, int jtaStatus) {
return ! coordinator.getTransactionContext().isClosed() &&
! coordinator.getTransactionContext().isFlushModeNever() &&
! JtaStatusHelper.isRollback( jtaStatus );
}
}
private class CallbackExceptionMapperImpl implements ExceptionMapper {
@Override
public RuntimeException mapStatusCheckFailure(String message, SystemException systemException) {
throw new PersistenceException( message, systemException );
}
@Override
public RuntimeException mapManagedFlushFailure(String message, RuntimeException failure) {
if ( HibernateException.class.isInstance( failure ) ) {
throw convert( failure );
}
if ( PersistenceException.class.isInstance( failure ) ) {
throw failure;
}
throw new PersistenceException( message, failure );
}
}
}