#副標=Open Source軟體實戰
#大標=資料永續層解決方案--Hibernate(III)

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#程式1
private Integer news_id;
private Date news_date;
private String news_content;
private CategoryBean news_category;
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#程式2
private Integer cat_id;
private String cat_name;
private CategoryBean parent_cat;
private Set sub_categories = new HashSet();
private Set sub_news = new HashSet();
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#程式3
<many-to-one 
	name="news_category"
	column="news_category"
	class="foo.CategoryBean"/>
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#程式4
<set name="sub_news" inverse="true" 
    cascade="none">
	<key column="news_category"/>
	<one-to-many class="foo.NewsBean"/>			
</set>
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#程式5
<many-to-one 
		name="parent_cat"
		column="parent_cat"/>
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#程式6
<set name="sub_categories" inverse="true" 
    cascade="none">
	<key column="parent_cat"/>
	<one-to-many class="foo.CategoryBean"/>	
</set>
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log4j.logger.net.sf.hibernate=info
log4j.logger.net.sf.hibernate.type=info
log4j.logger.net.sf.hibernate.tool.hbm2ddl=debug 
log4j.logger.net.sf.hibernate.ps.PreparedStatementCache
=info
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