?? onetomany.java
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//$Id: OneToMany.java,v 1.7.2.5 2003/12/01 05:29:15 oneovthafew Exp $package net.sf.hibernate.mapping;import java.util.Iterator;import net.sf.hibernate.MappingException;import net.sf.hibernate.engine.Mapping;import net.sf.hibernate.loader.OuterJoinLoader;import net.sf.hibernate.type.EntityType;import net.sf.hibernate.type.Type;/** * A mapping for a one-to-many association * @author Gavin King */public class OneToMany implements Value { private EntityType type; private Table referencingTable; private PersistentClass associatedClass; public EntityType getEntityType() { return type; } public OneToMany(PersistentClass owner) throws MappingException { this.referencingTable = (owner==null) ? null : owner.getTable(); } public void setType(EntityType type) { this.type = type; } public PersistentClass getAssociatedClass() { return associatedClass; } public void setAssociatedClass(PersistentClass associatedClass) { this.associatedClass = associatedClass; } public void createForeignKey() { // no foreign key element of for a one-to-many } public Iterator getColumnIterator() { return associatedClass.getKey().getColumnIterator(); } public int getColumnSpan() { return associatedClass.getKey().getColumnSpan(); } public Formula getFormula() { return null; } public int getOuterJoinFetchSetting() { return OuterJoinLoader.EAGER; } public Table getTable() { return referencingTable; } public Type getType() { return getEntityType(); } public boolean isNullable() { return false; } public boolean isSimpleValue() { return false; } public boolean isUnique() { return false; } public boolean isValid(Mapping mapping) throws MappingException { return true; }}?? 快捷鍵說(shuō)明
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