sortedsettype.java

来自「用Java实现的23个常用设计模式源代码」· Java 代码 · 共 52 行

//$Id: SortedSetType.java,v 1.9.2.3 2003/11/21 16:06:40 oneovthafew Exp $
package net.sf.hibernate.type;

import java.io.Serializable;
import java.util.Comparator;

import net.sf.hibernate.HibernateException;
import net.sf.hibernate.collection.CollectionPersister;
import net.sf.hibernate.collection.PersistentCollection;
import net.sf.hibernate.collection.SortedSet;
import net.sf.hibernate.engine.SessionImplementor;

public class SortedSetType extends SetType {
	
	private final Comparator comparator;
	
	public SortedSetType(String role, Comparator comparator) {
		super(role);
		this.comparator = comparator;
	}
	
	public PersistentCollection instantiate(SessionImplementor session, CollectionPersister persister) {
		SortedSet set = new SortedSet(session);
		set.setComparator(comparator);
		return set;
	}
	
	public Class getReturnedClass() {
		return java.util.SortedSet.class;
	}
	
	public PersistentCollection wrap(SessionImplementor session, Object collection) {
		return new SortedSet( session, (java.util.SortedSet) collection );
	}
	
	public PersistentCollection assembleCachedCollection(
		SessionImplementor session, 
		CollectionPersister persister, 
		Serializable disassembled,
		Object owner) throws HibernateException {
		
		return new SortedSet(session, persister, comparator, disassembled, owner);
	}
	
}