介绍了hibernate的入门有一些基本常用的事例

				//$Id: Array.java,v 1.8 2005/02/20 03:34:49 oneovthafew Exp $				package org.hibernate.mapping;								import org.hibernate.MappingException;				import org.hibernate.type.CollectionType;				import org.hibernate.type.PrimitiveType;				import org.hibernate.type.TypeFactory;				import org.hibernate.util.ReflectHelper;								/**				 * An array mapping has a primary key consisting of				 * the key columns + index column.				 * @author Gavin King				 */				public class Array extends List {									private String elementClassName;									/**					 * Constructor for Array.					 * @param owner					 */					public Array(PersistentClass owner) {						super(owner);					}									public Class getElementClass() throws MappingException {						if (elementClassName==null) {							org.hibernate.type.Type elementType = getElement().getType();							return isPrimitiveArray() ?								( (PrimitiveType) elementType ).getPrimitiveClass() :								elementType.getReturnedClass();						}						else {							try {								return ReflectHelper.classForName(elementClassName);							}							catch (ClassNotFoundException cnfe) {								throw new MappingException(cnfe);							}						}					}									public CollectionType getDefaultCollectionType() throws MappingException {						return TypeFactory.array( getRole(), getReferencedPropertyName(), isEmbedded(), getElementClass() );					}									public boolean isArray() {						return true;					}									/**					 * @return Returns the elementClassName.					 */					public String getElementClassName() {						return elementClassName;					}					/**					 * @param elementClassName The elementClassName to set.					 */					public void setElementClassName(String elementClassName) {						this.elementClassName = elementClassName;					}										public Object accept(ValueVisitor visitor) {						return visitor.accept(this);					}				}