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.
This commit is contained in:
Ståle W. Pedersen 2012-07-18 21:00:01 +02:00 committed by Steve Ebersole
parent a385792178
commit a1c9ed7756
8 changed files with 911 additions and 43 deletions

View File

@ -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";
}

View File

@ -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;
}
@ -123,54 +121,82 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
return true;
}
else {
throwLazyInitializationExceptionIfNotConnected();
CollectionEntry entry = session.getPersistenceContext().getCollectionEntry(this);
CollectionPersister persister = entry.getLoadedPersister();
if ( persister.isExtraLazy() ) {
if ( hasQueuedOperations() ) {
session.flush();
try {
if(specjLazyLoad) {
specialSpecjInitialization(false);
}
cachedSize = persister.getSize( entry.getLoadedKey(), session );
return true;
else
throwLazyInitializationExceptionIfNotConnected();
CollectionEntry entry = session.getPersistenceContext().getCollectionEntry(this);
CollectionPersister persister = entry.getLoadedPersister();
if ( persister.isExtraLazy() ) {
if ( hasQueuedOperations() ) {
session.flush();
}
cachedSize = persister.getSize( entry.getLoadedKey(), session );
return true;
}
}
finally {
if(specjLazyLoad)
session = null;
}
}
}
read();
return false;
}
protected Boolean readIndexExistence(Object index) {
if (!initialized) {
throwLazyInitializationExceptionIfNotConnected();
CollectionEntry entry = session.getPersistenceContext().getCollectionEntry(this);
CollectionPersister persister = entry.getLoadedPersister();
if ( persister.isExtraLazy() ) {
if ( hasQueuedOperations() ) {
session.flush();
try {
if(specjLazyLoad) {
specialSpecjInitialization(false);
}
return persister.indexExists( entry.getLoadedKey(), index, session );
else
throwLazyInitializationExceptionIfNotConnected();
CollectionEntry entry = session.getPersistenceContext().getCollectionEntry(this);
CollectionPersister persister = entry.getLoadedPersister();
if ( persister.isExtraLazy() ) {
if ( hasQueuedOperations() ) {
session.flush();
}
return persister.indexExists( entry.getLoadedKey(), index, session );
}
}
finally {
if(specjLazyLoad)
session = null;
}
}
read();
return null;
}
protected Boolean readElementExistence(Object element) {
if (!initialized) {
throwLazyInitializationExceptionIfNotConnected();
CollectionEntry entry = session.getPersistenceContext().getCollectionEntry(this);
CollectionPersister persister = entry.getLoadedPersister();
if ( persister.isExtraLazy() ) {
if ( hasQueuedOperations() ) {
session.flush();
try {
if(specjLazyLoad) {
specialSpecjInitialization(false);
}
return persister.elementExists( entry.getLoadedKey(), element, session );
else
throwLazyInitializationExceptionIfNotConnected();
CollectionEntry entry = session.getPersistenceContext().getCollectionEntry(this);
CollectionPersister persister = entry.getLoadedPersister();
if ( persister.isExtraLazy() ) {
if ( hasQueuedOperations() ) {
session.flush();
}
return persister.elementExists( entry.getLoadedKey(), element, session );
}
}
finally {
if(specjLazyLoad)
session = null;
}
}
read();
return null;
}
protected static final Object UNKNOWN = new MarkerObject("UNKNOWN");
@ -184,7 +210,7 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
if ( hasQueuedOperations() ) {
session.flush();
}
return persister.getElementByIndex( entry.getLoadedKey(), index, session, owner );
return persister.getElementByIndex(entry.getLoadedKey(), index, session, owner);
}
}
read();
@ -376,11 +402,25 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
if (initializing) {
throw new LazyInitializationException("illegal access to loading collection");
}
throwLazyInitializationExceptionIfNotConnected();
session.initializeCollection(this, writing);
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() ) {
throwLazyInitializationException("no session or session was closed");
@ -389,6 +429,40 @@ public abstract class AbstractPersistentCollection implements Serializable, Pers
throwLazyInitializationException("session is disconnected");
}
}
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(
@ -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

View File

@ -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 ) {

View File

@ -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();
}
}

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@ -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 );
}
}

View File

@ -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;
}
}

View File

@ -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();
}
}

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@ -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
};
}
}