HHH-7457

enabled hibernate to reattach a collection that hasnt been loaded to the session.
note: this can cause data to be loaded outside a transaction. use with caution.

hibernate-core/src/main/java/org/hibernate/cfg/AvailableSettings.java

@@ -592,4 +592,6 @@ public interface AvailableSettings {
 	public static final String MULTI_TENANT_IDENTIFIER_RESOLVER = "hibernate.tenant_identifier_resolver";
 
 	public static final String FORCE_DISCRIMINATOR_IN_SELECTS_BY_DEFAULT = "hibernate.discriminator.force_in_select";
+
+    public static final String ENABLE_LAZY_LOAD_NO_TRANS = "hibernate.enable_lazy_load_no_trans";
 }

hibernate-core/src/main/java/org/hibernate/collection/internal/AbstractPersistentCollection.java

@@ -24,24 +24,17 @@
 package org.hibernate.collection.internal;
 
 import java.io.Serializable;
-import java.util.ArrayList;
-import java.util.Collection;
-import java.util.Collections;
-import java.util.HashSet;
-import java.util.Iterator;
-import java.util.List;
-import java.util.ListIterator;
+import java.util.*;
 
 import org.hibernate.AssertionFailure;
 import org.hibernate.HibernateException;
 import org.hibernate.LazyInitializationException;
+import org.hibernate.cfg.AvailableSettings;
+import org.hibernate.cfg.Configuration;
 import org.hibernate.collection.spi.PersistentCollection;
 import org.hibernate.engine.internal.ForeignKeys;
-import org.hibernate.engine.spi.CollectionEntry;
-import org.hibernate.engine.spi.EntityEntry;
-import org.hibernate.engine.spi.SessionImplementor;
-import org.hibernate.engine.spi.Status;
-import org.hibernate.engine.spi.TypedValue;
+import org.hibernate.engine.spi.*;
+import org.hibernate.internal.SessionFactoryRegistry;
 import org.hibernate.internal.util.MarkerObject;
 import org.hibernate.internal.util.collections.CollectionHelper;
 import org.hibernate.internal.util.collections.EmptyIterator;
@@ -51,6 +44,8 @@ import org.hibernate.persister.entity.EntityPersister;
 import org.hibernate.pretty.MessageHelper;
 import org.hibernate.type.Type;
 
+import javax.naming.NamingException;
+
 /**
  * Base class implementing {@link org.hibernate.collection.spi.PersistentCollection}
  *
@@ -73,6 +68,9 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
 	private boolean dirty;
 	private Serializable storedSnapshot;
 
+	private String sessionFactoryUuid;
+	private boolean specjLazyLoad = false;
+
 	public final String getRole() {
 		return role;
 	}
@@ -123,6 +121,11 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
 				return true;
 			}
 			else {
+				try {
+					if(specjLazyLoad) {
+						specialSpecjInitialization(false);
+					}
+					else
 						throwLazyInitializationExceptionIfNotConnected();
 					CollectionEntry entry = session.getPersistenceContext().getCollectionEntry(this);
 					CollectionPersister persister = entry.getLoadedPersister();
@@ -134,6 +137,11 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
 						return true;
 					}
 				}
+				finally {
+					if(specjLazyLoad)
+						session = null;
+				}
+			}
 		}
 		read();
 		return false;
@@ -141,6 +149,11 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
 
 	protected Boolean readIndexExistence(Object index) {
 		if (!initialized) {
+			try {
+				if(specjLazyLoad) {
+					specialSpecjInitialization(false);
+				}
+				else
 					throwLazyInitializationExceptionIfNotConnected();
 				CollectionEntry entry = session.getPersistenceContext().getCollectionEntry(this);
 				CollectionPersister persister = entry.getLoadedPersister();
@@ -151,13 +164,22 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
 					return persister.indexExists( entry.getLoadedKey(), index, session );
 				}
 			}
+			finally {
+				if(specjLazyLoad)
+					session = null;
+			}
+		}
 		read();
 		return null;
-		
 	}
 
 	protected Boolean readElementExistence(Object element) {
 		if (!initialized) {
+			try {
+				if(specjLazyLoad) {
+					specialSpecjInitialization(false);
+				}
+				else
 					throwLazyInitializationExceptionIfNotConnected();
 				CollectionEntry entry = session.getPersistenceContext().getCollectionEntry(this);
 				CollectionPersister persister = entry.getLoadedPersister();
@@ -168,9 +190,13 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
 					return persister.elementExists( entry.getLoadedKey(), element, session );
 				}
 			}
+			finally {
+				if(specjLazyLoad)
+					session = null;
+			}
+		}
 		read();
 		return null;
-		
 	}
 	
 	protected static final Object UNKNOWN = new MarkerObject("UNKNOWN");
@@ -376,10 +402,24 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
 			if (initializing) {
 				throw new LazyInitializationException("illegal access to loading collection");
 			}
+			else if ( specjLazyLoad ) {
+				specialSpecjInitialization(writing);
+			}
+			else if ( session==null ) {
+				throw new LazyInitializationException("could not initialize proxy - no Session");
+			}
+			else if ( !session.isOpen() ) {
+				throw new LazyInitializationException("could not initialize proxy - the owning Session was closed");
+			}
+			else if ( !session.isConnected() ) {
+				throw new LazyInitializationException("could not initialize proxy - the owning Session is disconnected");
+			}
+			else {
 				throwLazyInitializationExceptionIfNotConnected();
 				session.initializeCollection(this, writing);
 			}
 		}
+	}
 
 	private void throwLazyInitializationExceptionIfNotConnected() {
 		if ( !isConnectedToSession() )  {
@@ -390,6 +430,40 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
 		}		
 	}
 
+	protected void specialSpecjInitialization(boolean writing) {
+		if ( session == null ) {
+			//we have a detached collection thats set to null, reattach
+			if ( sessionFactoryUuid == null ) {
+				throwLazyInitializationExceptionIfNotConnected();
+			}
+			try {
+				SessionFactoryImplementor  sf = (SessionFactoryImplementor)
+						SessionFactoryRegistry.INSTANCE.getSessionFactory( sessionFactoryUuid );
+				session =  (SessionImplementor) sf.openSession();
+				CollectionPersister collectionPersister =
+						session.getFactory().getCollectionPersister( this.getRole() );
+				session.getPersistenceContext()
+						.addUninitializedDetachedCollection( collectionPersister, this );
+
+				session.initializeCollection(this, writing);
+
+				//CollectionEntry entry = session.getPersistenceContext().getCollectionEntry(this);
+				//CollectionPersister persister = entry.getLoadedPersister();
+				//cachedSize = persister.getSize( entry.getLoadedKey(), session);
+
+				//session = null;
+			}
+			catch( Exception e ) {
+				e.printStackTrace();
+				throw new LazyInitializationException(e.getMessage());
+			}
+		}
+		else {
+			session.initializeCollection(this, writing);
+		}
+	}
+
+	
 	private void throwLazyInitializationException(String message) {
 		throw new LazyInitializationException(
 				"failed to lazily initialize a collection" + 
@@ -420,6 +494,7 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
 	 * @return true if this was currently associated with the given session
 	 */
 	public final boolean unsetSession(SessionImplementor currentSession) {
+        prepareForPossibleSpecialSpecjInitialization();
 		if (currentSession==this.session) {
 			this.session=null;
 			return true;
@@ -429,6 +504,22 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
 		}
 	}
 
+	protected void prepareForPossibleSpecialSpecjInitialization() {
+		if ( session != null ) {
+			specjLazyLoad = Boolean.parseBoolean( session.getFactory().getProperties().getProperty( AvailableSettings.ENABLE_LAZY_LOAD_NO_TRANS));
+
+			if ( specjLazyLoad && sessionFactoryUuid == null) {
+				try {
+					sessionFactoryUuid = (String) session.getFactory().getReference().get("uuid").getContent();
+				}
+				catch (NamingException e) {
+					//not much we can do if this fails...
+				}
+			}
+		}
+	}
+
+
 	/**
 	 * Associate the collection with the given session.
 	 * @return false if the collection was already associated with the session

hibernate-core/src/main/java/org/hibernate/proxy/AbstractLazyInitializer.java

@@ -23,14 +23,18 @@
  */
 package org.hibernate.proxy;
 
+import javax.naming.NamingException;
 import java.io.Serializable;
 
 import org.hibernate.HibernateException;
 import org.hibernate.LazyInitializationException;
 import org.hibernate.SessionException;
 import org.hibernate.TransientObjectException;
+import org.hibernate.cfg.AvailableSettings;
 import org.hibernate.engine.spi.EntityKey;
+import org.hibernate.engine.spi.SessionFactoryImplementor;
 import org.hibernate.engine.spi.SessionImplementor;
+import org.hibernate.internal.SessionFactoryRegistry;
 import org.hibernate.persister.entity.EntityPersister;
 
 /**
@@ -50,6 +54,8 @@ public abstract class AbstractLazyInitializer implements LazyInitializer {
 	private transient SessionImplementor session;
 	private Boolean readOnlyBeforeAttachedToSession;
 
+	private String sessionFactoryUuid;
+	private boolean specjLazyLoad = false;
 	/**
 	 * For serialization from the non-pojo initializers (HHH-3309)
 	 */
@@ -137,6 +143,7 @@ public abstract class AbstractLazyInitializer implements LazyInitializer {
 
 	@Override
 	public final void unsetSession() {
+		prepareForPossibleSpecialSpecjInitialization();
 		session = null;
 		readOnly = false;
 		readOnlyBeforeAttachedToSession = null;
@@ -145,7 +152,10 @@ public abstract class AbstractLazyInitializer implements LazyInitializer {
 	@Override
 	public final void initialize() throws HibernateException {
 		if (!initialized) {
-			if ( session==null ) {
+			if( specjLazyLoad ) {
+				specialSpecjInitialization();
+			}
+			else if ( session==null ) {
 				throw new LazyInitializationException("could not initialize proxy - no Session");
 			}
 			else if ( !session.isOpen() ) {
@@ -165,6 +175,55 @@ public abstract class AbstractLazyInitializer implements LazyInitializer {
 		}
 	}
 
+	protected void specialSpecjInitialization() {
+		if ( session == null ) {
+			//we have a detached collection thats set to null, reattach
+			if ( sessionFactoryUuid == null ) {
+				throw new LazyInitializationException("could not initialize proxy - no Session");
+			}
+			try {
+				SessionFactoryImplementor sf = (SessionFactoryImplementor)
+						SessionFactoryRegistry.INSTANCE.getSessionFactory( sessionFactoryUuid );
+				session =  (SessionImplementor) sf.openSession();
+
+				target = session.immediateLoad( entityName, id );
+				initialized = true;
+				checkTargetState();
+			}
+			catch( Exception e ) {
+				e.printStackTrace();
+				throw new LazyInitializationException(e.getMessage());
+			}
+			finally {
+				session = null;
+			}
+		}
+		else if(session.isOpen() && session.isConnected()) {
+			target = session.immediateLoad( entityName, id );
+			initialized = true;
+			checkTargetState();
+		}
+		else {
+			throw new LazyInitializationException("could not initialize proxy - Session was closed or disced");
+		}
+	}
+
+	protected void prepareForPossibleSpecialSpecjInitialization() {
+		if ( session != null ) {
+			specjLazyLoad =
+					Boolean.parseBoolean( session.getFactory().getProperties().getProperty( AvailableSettings.ENABLE_LAZY_LOAD_NO_TRANS));
+
+			if ( specjLazyLoad && sessionFactoryUuid == null) {
+				try {
+					sessionFactoryUuid = (String) session.getFactory().getReference().get("uuid").getContent();
+				}
+				catch (NamingException e) {
+					//not much we can do if this fails...
+				}
+			}
+		}
+	}
+
 	private void checkTargetState() {
 		if ( !unwrap ) {
 			if ( target == null ) {

hibernate-core/src/test/java/org/hibernate/test/annotations/derivedidentities/e1/b/specjmapid/ondemand/CustomerDemand.java

@@ -0,0 +1,245 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * Copyright (c) 2010, Red Hat, Inc. and/or its affiliates 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.test.annotations.derivedidentities.e1.b.specjmapid.ondemand;
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.util.ArrayList;
+import java.util.Calendar;
+import java.util.List;
+import javax.persistence.Basic;
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.FetchType;
+import javax.persistence.Id;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+import javax.persistence.NamedQueries;
+import javax.persistence.NamedQuery;
+import javax.persistence.OneToMany;
+import javax.persistence.Table;
+import javax.persistence.Temporal;
+import javax.persistence.TemporalType;
+import javax.persistence.Version;
+
+@SuppressWarnings("serial")
+@NamedQueries({
+					  @NamedQuery(name = CustomerDemand.QUERY_ALL,
+								  query = "select a from CustomerDemand a"),
+					  @NamedQuery(name = CustomerDemand.QUERY_COUNT,
+								  query = "select COUNT(a) from CustomerDemand a"),
+					  @NamedQuery(name = CustomerDemand.QUERY_BY_CREDIT,
+								  query = "SELECT c.id FROM CustomerDemand c WHERE c.creditLimit > :limit")
+			  })
+@Entity
+@Table(name = "O_CUSTOMERDEMAND")
+public class CustomerDemand implements Serializable {
+	public static final String QUERY_ALL = "Customer.selectAll";
+	public static final String QUERY_COUNT = "Customer.count";
+	public static final String QUERY_BY_CREDIT = "Customer.selectByCreditLimit";
+
+	public static final String BAD_CREDIT = "BC";
+
+	@Id
+	@Column(name = "C_ID")
+	private int id;
+
+	@Column(name = "C_FIRST")
+	private String firstName;
+
+	@Column(name = "C_LAST")
+	private String lastName;
+
+	@Column(name = "C_CONTACT")
+	private String contact;
+
+	@Basic(fetch = FetchType.LAZY)
+	@Column(name = "C_CREDIT")
+	private String credit;
+
+	@Column(name = "C_CREDIT_LIMIT")
+	private BigDecimal creditLimit;
+
+	@Column(name = "C_SINCE")
+	@Temporal(TemporalType.DATE)
+	private Calendar since;
+
+	@Column(name = "C_BALANCE")
+	private BigDecimal balance;
+
+	@Column(name = "C_YTD_PAYMENT")
+	private BigDecimal ytdPayment;
+
+	@OneToMany(targetEntity = CustomerInventoryDemand.class,
+			   mappedBy = "customer",
+			   cascade = CascadeType.ALL,
+			   fetch = FetchType.LAZY)
+	private List<CustomerInventoryDemand> customerInventories;
+
+	@Version
+	@Column(name = "C_VERSION")
+	private int version;
+
+	protected CustomerDemand() {
+	}
+
+	public CustomerDemand(String first, String last,
+						  String contact, String credit, BigDecimal creditLimit,
+						  BigDecimal balance, BigDecimal YtdPayment) {
+
+		this.firstName = first;
+		this.lastName = last;
+		this.contact = contact;
+		this.since = Calendar.getInstance();
+		this.credit = credit;
+		this.creditLimit = creditLimit;
+		this.balance = balance;
+		this.ytdPayment = YtdPayment;
+	}
+
+	public Integer getId() {
+		return id;
+	}
+
+	public void setId(Integer customerId) {
+		this.id = customerId;
+	}
+
+	public String getFirstName() {
+		return firstName;
+	}
+
+	public void setFirstName(String firstName) {
+		this.firstName = firstName;
+	}
+
+	public String getLastName() {
+		return lastName;
+	}
+
+	public void setLastName(String lastName) {
+		this.lastName = lastName;
+	}
+
+	public String getContact() {
+		return contact;
+	}
+
+	public void setContact(String contact) {
+		this.contact = contact;
+	}
+
+	public String getCredit() {
+		return credit;
+	}
+
+	public void setCredit(String credit) {
+		this.credit = credit;
+	}
+
+	public BigDecimal getCreditLimit() {
+		return creditLimit;
+	}
+
+	public void setCreditLimit(BigDecimal creditLimit) {
+		this.creditLimit = creditLimit;
+	}
+
+	public Calendar getSince() {
+		return since;
+	}
+
+	public void setSince(Calendar since) {
+		this.since = since;
+	}
+
+	public BigDecimal getBalance() {
+		return balance;
+	}
+
+	public void setBalance(BigDecimal balance) {
+		this.balance = balance;
+	}
+
+	public void changeBalance(BigDecimal change) {
+		setBalance( balance.add( change ).setScale( 2, BigDecimal.ROUND_DOWN ) );
+	}
+
+	public BigDecimal getYtdPayment() {
+		return ytdPayment;
+	}
+
+	public void setYtdPayment(BigDecimal ytdPayment) {
+		this.ytdPayment = ytdPayment;
+	}
+
+	public List<CustomerInventoryDemand> getInventories() {
+		if ( customerInventories == null ) {
+			customerInventories = new ArrayList<CustomerInventoryDemand>();
+		}
+		return customerInventories;
+	}
+
+	public CustomerInventoryDemand addInventory(ItemDemand item, int quantity,
+												BigDecimal totalValue) {
+
+		CustomerInventoryDemand inventory = new CustomerInventoryDemand(
+				this, item,
+				quantity, totalValue
+		);
+		getInventories().add( inventory );
+		return inventory;
+	}
+
+	public int getVersion() {
+		return version;
+	}
+
+	public boolean hasSufficientCredit(BigDecimal amount) {
+		return !BAD_CREDIT.equals( getCredit() )
+				&& creditLimit != null
+				&& creditLimit.compareTo( amount ) >= 0;
+	}
+
+	@Override
+	public boolean equals(Object o) {
+		if ( this == o ) {
+			return true;
+		}
+		if ( o == null || getClass() != o.getClass() ) {
+			return false;
+		}
+		return id == ( ( CustomerDemand ) o ).id;
+	}
+
+	@Override
+	public int hashCode() {
+		return new Integer( id ).hashCode();
+	}
+
+	@Override
+	public String toString() {
+		return this.getFirstName() + " " + this.getLastName();
+	}
+}

hibernate-core/src/test/java/org/hibernate/test/annotations/derivedidentities/e1/b/specjmapid/ondemand/CustomerInventoryDemand.java

@@ -0,0 +1,149 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * Copyright (c) 2010, Red Hat, Inc. and/or its affiliates 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.test.annotations.derivedidentities.e1.b.specjmapid.ondemand;
+import java.io.Serializable;
+import java.math.BigDecimal;
+import java.util.Comparator;
+import javax.persistence.CascadeType;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.GeneratedValue;
+import javax.persistence.GenerationType;
+import javax.persistence.Id;
+import javax.persistence.IdClass;
+import javax.persistence.JoinColumn;
+import javax.persistence.ManyToOne;
+import javax.persistence.NamedQueries;
+import javax.persistence.NamedQuery;
+import javax.persistence.Table;
+import javax.persistence.TableGenerator;
+import javax.persistence.Version;
+
+@NamedQueries({
+		@NamedQuery(name = "CustomerInventoryDemand.selectAll",
+				query = "select a from CustomerInventoryDemand a")
+})
+@SuppressWarnings("serial")
+@Entity
+@Table(name = "O_CUSTINVENTORY")
+@IdClass(CustomerInventoryDemandPK.class)
+public class CustomerInventoryDemand implements Serializable, Comparator<CustomerInventoryDemand> {
+
+	@Id
+	@TableGenerator(name = "inventory",
+					table = "U_SEQUENCES",
+					pkColumnName = "S_ID",
+					valueColumnName = "S_NEXTNUM",
+					pkColumnValue = "inventory",
+					allocationSize = 1000)
+	@GeneratedValue(strategy = GenerationType.TABLE, generator = "inventory")
+	@Column(name = "CI_ID")
+	private Integer id;
+
+	@Id
+	@Column(name = "CI_CUSTOMERID", insertable = false, updatable = false)
+	private int custId;
+
+	@ManyToOne(cascade = CascadeType.MERGE)
+	@JoinColumn(name = "CI_CUSTOMERID", nullable = false)
+	private CustomerDemand customer;
+
+	@ManyToOne(cascade = CascadeType.MERGE)
+	@JoinColumn(name = "CI_ITEMID")
+	private ItemDemand vehicle;
+
+	@Column(name = "CI_VALUE")
+	private BigDecimal totalCost;
+
+	@Column(name = "CI_QUANTITY")
+	private int quantity;
+
+	@Version
+	@Column(name = "CI_VERSION")
+	private int version;
+
+	protected CustomerInventoryDemand() {
+	}
+
+	CustomerInventoryDemand(CustomerDemand customer, ItemDemand vehicle, int quantity, BigDecimal totalValue) {
+		this.customer = customer;
+		this.vehicle = vehicle;
+		this.quantity = quantity;
+		this.totalCost = totalValue;
+	}
+
+	public ItemDemand getVehicle() {
+		return vehicle;
+	}
+
+	public BigDecimal getTotalCost() {
+		return totalCost;
+	}
+
+	public int getQuantity() {
+		return quantity;
+	}
+
+	public Integer getId() {
+		return id;
+	}
+
+	public CustomerDemand getCustomer() {
+		return customer;
+	}
+
+	public int getCustId() {
+		return custId;
+	}
+
+	public int getVersion() {
+		return version;
+	}
+
+	public int compare(CustomerInventoryDemand cdb1, CustomerInventoryDemand cdb2) {
+		return cdb1.id.compareTo( cdb2.id );
+	}
+
+	@Override
+	public boolean equals(Object obj) {
+		if ( obj == this ) {
+			return true;
+		}
+		if ( obj == null || !( obj instanceof CustomerInventoryDemand ) ) {
+			return false;
+		}
+		if ( this.id == ( ( CustomerInventoryDemand ) obj ).id ) {
+			return true;
+		}
+		if ( this.id != null && ( ( CustomerInventoryDemand ) obj ).id == null ) {
+			return false;
+		}
+		if ( this.id == null && ( ( CustomerInventoryDemand ) obj ).id != null ) {
+			return false;
+		}
+
+		return this.id.equals( ( ( CustomerInventoryDemand ) obj ).id );
+	}
+
+}

hibernate-core/src/test/java/org/hibernate/test/annotations/derivedidentities/e1/b/specjmapid/ondemand/CustomerInventoryDemandPK.java

@@ -0,0 +1,66 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * Copyright (c) 2010, Red Hat, Inc. and/or its affiliates 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.test.annotations.derivedidentities.e1.b.specjmapid.ondemand;
+import java.io.Serializable;
+
+
+public class CustomerInventoryDemandPK implements Serializable {
+
+	private Integer id;
+	private int custId;
+
+	public CustomerInventoryDemandPK() {
+	}
+
+	public CustomerInventoryDemandPK(Integer id, int custId) {
+		this.id = id;
+		this.custId = custId;
+	}
+
+	public boolean equals(Object other) {
+		if ( other == this ) {
+			return true;
+		}
+		if ( other == null || getClass() != other.getClass() ) {
+			return false;
+		}
+		CustomerInventoryDemandPK cip = ( CustomerInventoryDemandPK ) other;
+		return ( custId == cip.custId && ( id == cip.id ||
+				( id != null && id.equals( cip.id ) ) ) );
+	}
+
+	public int hashCode() {
+		return ( id == null ? 0 : id.hashCode() ) ^ custId;
+	}
+
+	public Integer getId() {
+		return id;
+	}
+
+	public int getCustId() {
+		return custId;
+	}
+
+
+}

hibernate-core/src/test/java/org/hibernate/test/annotations/derivedidentities/e1/b/specjmapid/ondemand/ItemDemand.java

@@ -0,0 +1,143 @@
+/*
+ * Hibernate, Relational Persistence for Idiomatic Java
+ *
+ * Copyright (c) 2010, Red Hat, Inc. and/or its affiliates 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.test.annotations.derivedidentities.e1.b.specjmapid.ondemand;
+import java.io.Serializable;
+import java.math.BigDecimal;
+import javax.persistence.Column;
+import javax.persistence.Entity;
+import javax.persistence.Id;
+import javax.persistence.NamedQueries;
+import javax.persistence.NamedQuery;
+import javax.persistence.Table;
+import javax.persistence.Version;
+
+
+@NamedQueries({
+		@NamedQuery(name = "Item.findByCategory",
+				query = "SELECT i FROM ItemDemand i WHERE i.category=:category ORDER BY i.id")
+})
+@SuppressWarnings("serial")
+@Entity
+@Table(name = "O_ITEM")
+public class ItemDemand implements Serializable {
+
+	public static final String QUERY_BY_CATEGORY = "Item.findByCategory";
+
+	@Id
+	@Column(name = "I_ID")
+	private String id;
+
+	@Column(name = "I_NAME")
+	private String name;
+
+	@Column(name = "I_PRICE")
+	private BigDecimal price;
+
+	@Column(name = "I_DESC")
+	private String description;
+
+	@Column(name = "I_DISCOUNT")
+	private BigDecimal discount;
+
+	@Column(name = "I_CATEGORY")
+	private int category;
+
+	@Version
+	@Column(name = "I_VERSION")
+	int version;
+
+	public String getId() {
+		return id;
+	}
+
+	public void setId(String i) {
+		id = i;
+	}
+
+	public int getCategory() {
+		return category;
+	}
+
+	public void setCategory(int category) {
+		this.category = category;
+	}
+
+	public String getDescription() {
+		return description;
+	}
+
+	public void setDescription(String description) {
+		this.description = description;
+	}
+
+	public BigDecimal getDiscount() {
+		return discount;
+	}
+
+	public void setDiscount(BigDecimal discount) {
+		if ( discount.doubleValue() < 0 || discount.doubleValue() > 100.0 ) {
+			throw new IllegalArgumentException(
+					this + " discount " + discount
+							+ " is invalid. Must be between 0.0 and 100.0"
+			);
+		}
+		this.discount = discount;
+	}
+
+	public String getName() {
+		return name;
+	}
+
+	public void setName(String name) {
+		this.name = name;
+	}
+
+	public BigDecimal getPrice() {
+		return price;
+	}
+
+	public void setPrice(BigDecimal price) {
+		this.price = price;
+	}
+
+	public int getVersion() {
+		return version;
+	}
+
+	@Override
+	public boolean equals(Object other) {
+		if ( other == null || other.getClass() != this.getClass() ) {
+			return false;
+		}
+		if ( other == this ) {
+			return true;
+		}
+		return id.equals( ( ( ItemDemand ) other ).id );
+	}
+
+	@Override
+	public int hashCode() {
+		return id.hashCode();
+	}
+}

hibernate-core/src/test/java/org/hibernate/test/annotations/derivedidentities/e1/b/specjmapid/ondemand/LazyLoadingTest.java

@@ -0,0 +1,113 @@
+ /*
+  * JBoss, Home of Professional Open Source
+  * Copyright 2012, JBoss Inc., and individual contributors as indicated
+  * by the @authors tag. See the copyright.txt in the distribution for a
+  * full listing of individual contributors.
+  *
+  * This is free software; you can redistribute it and/or modify it
+  * under the terms of the GNU Lesser General Public License as
+  * published by the Free Software Foundation; either version 2.1 of
+  * the License, or (at your option) any later version.
+  *
+  * This software 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 software; if not, write to the Free
+  * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
+  * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
+  */
+
+package org.hibernate.test.annotations.derivedidentities.e1.b.specjmapid.ondemand;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
+import java.math.BigDecimal;
+import java.util.List;
+
+import org.hibernate.Session;
+import org.hibernate.Transaction;
+import org.hibernate.cfg.Configuration;
+import org.hibernate.cfg.Environment;
+
+import org.hibernate.testing.junit4.BaseCoreFunctionalTestCase;
+import org.junit.Test;
+
+ public class LazyLoadingTest extends BaseCoreFunctionalTestCase{
+
+	 public LazyLoadingTest() {
+		 System.setProperty( "hibernate.enable_specj_proprietary_syntax", "true" );
+	 }
+
+	 @Test
+	 public void testOnDemandLoading()
+	 {
+		 Session s;
+		 Transaction tx;
+		 s = openSession();
+		 tx = s.beginTransaction();
+		 // store entity in datastore
+		 CustomerDemand cust = new CustomerDemand("John", "Doe", "123456", "1.0", new BigDecimal(1),new BigDecimal(1), new BigDecimal(5));
+		 cust.setCredit( "GOOD" );
+		 s.persist(cust);
+		 ItemDemand item = new ItemDemand();
+		 item.setId("007");
+		 item.setName("widget");
+		 item.setDescription( "FooBar" );
+
+
+
+		 cust.addInventory(item, 1, new BigDecimal(500));
+		 s.persist(item);
+		 s.persist(cust);
+		 s.flush();
+		 CustomerInventoryDemand eager = cust.getInventories().get( 0 );
+		 Integer lazyId = cust.getId();
+		 tx.commit();
+		 s.close();
+
+		 s = openSession();
+
+		 // load the lazy entity, orm configuration loaded during @Before defines loading
+		 //tx = s.beginTransaction();
+		 CustomerDemand lazyCustomer = (CustomerDemand)s.get(CustomerDemand.class, lazyId);
+		 assertNotNull(lazyCustomer);
+		 s.clear();
+
+		 // access the association, outside the session that loaded the entity
+		 List<CustomerInventoryDemand> inventories = lazyCustomer.getInventories(); // on-demand load
+		 assertNotNull(inventories);
+		 assertTrue( inventories.contains( eager ) ); // test readElementExistence
+		 assertEquals(1, inventories.size()); // test readSize
+         //assertTrue(inventories.contains(item));
+		 assertEquals( cust.getCredit(), lazyCustomer.getCredit() );
+		 CustomerInventoryDemand inv = inventories.get(0);
+		 assertNotNull(inv);
+		 assertEquals(inv.getQuantity(), 1); // field access
+		 assertEquals(inv.getVehicle().getDescription(), "FooBar"); // field access
+
+		 s.close();
+	 }
+
+	 @Override
+	 protected void configure(Configuration cfg) {
+		 super.configure( cfg );
+		 cfg.setProperty( Environment.ENABLE_LAZY_LOAD_NO_TRANS, "true");
+
+	 }
+
+	 @Override
+	 protected Class[] getAnnotatedClasses() {
+		 return new Class[] {
+				 CustomerDemand.class,
+				 CustomerInventoryDemand.class,
+				 CustomerInventoryDemandPK.class,
+				 ItemDemand.class
+
+		 };
+	 }
+ }