FileDocCategorySizeDatePackage
CollectionKey.javaAPI DocHibernate 3.2.53135Wed Feb 01 12:59:08 GMT 2006org.hibernate.engine

CollectionKey

public final class CollectionKey extends Object implements Serializable
Uniquely identifies a collection instance in a particular session.
author
Gavin King

Fields Summary
private final String
role
private final Serializable
key
private final org.hibernate.type.Type
keyType
private final SessionFactoryImplementor
factory
private final int
hashCode
private org.hibernate.EntityMode
entityMode
Constructors Summary
public CollectionKey(org.hibernate.persister.collection.CollectionPersister persister, Serializable key, org.hibernate.EntityMode em)

		this( persister.getRole(), key, persister.getKeyType(), em, persister.getFactory() );
private CollectionKey(String role, Serializable key, org.hibernate.type.Type keyType, org.hibernate.EntityMode entityMode, SessionFactoryImplementor factory)

		this.role = role;
		this.key = key;
		this.keyType = keyType;
		this.entityMode = entityMode;
		this.factory = factory;
		this.hashCode = generateHashCode(); //cache the hashcode
Methods Summary
static org.hibernate.engine.CollectionKeydeserialize(java.io.ObjectInputStream ois, SessionImplementor session)
Custom deserialization routine used during deserialization of a Session/PersistenceContext for increased performance.

param
ois The stream from which to read the entry.
param
session The session being deserialized.
return
The deserialized CollectionKey
throws
IOException
throws
ClassNotFoundException

		return new CollectionKey(
				( String ) ois.readObject(),
		        ( Serializable ) ois.readObject(),
		        ( Type ) ois.readObject(),
		        EntityMode.parse( ( String ) ois.readObject() ),
		        session.getFactory()
		);
public booleanequals(java.lang.Object other)

		CollectionKey that = (CollectionKey) other;
		return that.role.equals(role) &&
		       keyType.isEqual(that.key, key, entityMode, factory);
public intgenerateHashCode()

		int result = 17;
		result = 37 * result + role.hashCode();
		result = 37 * result + keyType.getHashCode(key, entityMode, factory);
		return result;
public java.io.SerializablegetKey()

		return key;
public java.lang.StringgetRole()

		return role;
public inthashCode()

		return hashCode;
voidserialize(java.io.ObjectOutputStream oos)
Custom serialization routine used during serialization of a Session/PersistenceContext for increased performance.

param
oos The stream to which we should write the serial data.
throws
java.io.IOException

		oos.writeObject( role );
		oos.writeObject( key );
		oos.writeObject( keyType );
		oos.writeObject( entityMode.toString() );
public java.lang.StringtoString()

		return "CollectionKey" +
		       MessageHelper.collectionInfoString( factory.getCollectionPersister(role), key, factory );