org.hibernate.engine.internal.Cascade Maven / Gradle / Ivy
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* Hibernate, Relational Persistence for Idiomatic Java
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package org.hibernate.engine.internal;
import java.io.Serializable;
import java.util.Collection;
import java.util.HashSet;
import java.util.Iterator;
import java.util.Stack;
import org.jboss.logging.Logger;
import org.hibernate.HibernateException;
import org.hibernate.collection.spi.PersistentCollection;
import org.hibernate.engine.spi.CascadeStyle;
import org.hibernate.engine.spi.CascadingAction;
import org.hibernate.engine.spi.CollectionEntry;
import org.hibernate.engine.spi.EntityEntry;
import org.hibernate.engine.spi.SessionFactoryImplementor;
import org.hibernate.engine.spi.Status;
import org.hibernate.event.spi.EventSource;
import org.hibernate.internal.CoreMessageLogger;
import org.hibernate.internal.util.collections.CollectionHelper;
import org.hibernate.persister.collection.CollectionPersister;
import org.hibernate.persister.entity.EntityPersister;
import org.hibernate.pretty.MessageHelper;
import org.hibernate.type.AssociationType;
import org.hibernate.type.CollectionType;
import org.hibernate.type.CompositeType;
import org.hibernate.type.EntityType;
import org.hibernate.type.Type;
/**
* Delegate responsible for, in conjunction with the various
* {@link org.hibernate.engine.spi.CascadingAction actions}, implementing cascade processing.
*
* @author Gavin King
* @see org.hibernate.engine.spi.CascadingAction
*/
public final class Cascade {
/**
* A cascade point that occurs just after the insertion of the parent entity and
* just before deletion
*/
public static final int AFTER_INSERT_BEFORE_DELETE = 1;
/**
* A cascade point that occurs just before the insertion of the parent entity and
* just after deletion
*/
public static final int BEFORE_INSERT_AFTER_DELETE = 2;
/**
* A cascade point that occurs just after the insertion of the parent entity and
* just before deletion, inside a collection
*/
public static final int AFTER_INSERT_BEFORE_DELETE_VIA_COLLECTION = 3;
/**
* A cascade point that occurs just after update of the parent entity
*/
public static final int AFTER_UPDATE = 0;
/**
* A cascade point that occurs just before the session is flushed
*/
public static final int BEFORE_FLUSH = 0;
/**
* A cascade point that occurs just after eviction of the parent entity from the
* session cache
*/
public static final int AFTER_EVICT = 0;
/**
* A cascade point that occurs just after locking a transient parent entity into the
* session cache
*/
public static final int BEFORE_REFRESH = 0;
/**
* A cascade point that occurs just after refreshing a parent entity
*/
public static final int AFTER_LOCK = 0;
/**
* A cascade point that occurs just before merging from a transient parent entity into
* the object in the session cache
*/
public static final int BEFORE_MERGE = 0;
private static final CoreMessageLogger LOG = Logger.getMessageLogger(CoreMessageLogger.class, Cascade.class.getName());
private int cascadeTo;
private EventSource eventSource;
private CascadingAction action;
public Cascade(final CascadingAction action, final int cascadeTo, final EventSource eventSource) {
this.cascadeTo = cascadeTo;
this.eventSource = eventSource;
this.action = action;
}
private SessionFactoryImplementor getFactory() {
return eventSource.getFactory();
}
/**
* Cascade an action from the parent entity instance to all its children.
*
* @param persister The parent's entity persister
* @param parent The parent reference.
* @throws HibernateException
*/
public void cascade(final EntityPersister persister, final Object parent)
throws HibernateException {
cascade( persister, parent, null );
}
/**
* Cascade an action from the parent entity instance to all its children. This
* form is typically called from within cascade actions.
*
* @param persister The parent's entity persister
* @param parent The parent reference.
* @param anything Anything ;) Typically some form of cascade-local cache
* which is specific to each CascadingAction type
* @throws HibernateException
*/
public void cascade(final EntityPersister persister, final Object parent, final Object anything)
throws HibernateException {
if ( persister.hasCascades() || action.requiresNoCascadeChecking() ) { // performance opt
final boolean traceEnabled = LOG.isTraceEnabled();
if ( traceEnabled ) {
LOG.tracev( "Processing cascade {0} for: {1}", action, persister.getEntityName() );
}
Type[] types = persister.getPropertyTypes();
CascadeStyle[] cascadeStyles = persister.getPropertyCascadeStyles();
boolean hasUninitializedLazyProperties = persister.hasUninitializedLazyProperties( parent );
for ( int i=0; i