Hibernate 为多对一关联休眠二级缓存
我对hibernate有些陌生,正在尝试使用ehCache实现二级缓存。我在尝试使用二级缓存检索多对一关联时遇到问题。my foo.hbm.xml文件中的关联映射如下所示:Hibernate 为多对一关联休眠二级缓存,hibernate,second-level-cache,many-to-one,Hibernate,Second Level Cache,Many To One,我对hibernate有些陌生,正在尝试使用ehCache实现二级缓存。我在尝试使用二级缓存检索多对一关联时遇到问题。my foo.hbm.xml文件中的关联映射如下所示: <hibernate-mapping> <class name="com.test.Foo" table="FOO" > <id name="id" type="long"> <column name="FOO_ID" precisio
<hibernate-mapping>
<class name="com.test.Foo" table="FOO" >
<id name="id" type="long">
<column name="FOO_ID" precision="11" scale="0" />
<generator class="assigned" />
</id>
<many-to-one name="bar" class="com.test.Bar" >
<cache usage="read-only" />
<column name="BAR_TY" not-null="true" />
<column name="BAR_VAL" length="4" not-null="true" />
</many-to-one>
</class>
</hibernate-mapping>
(这是我实际的hbm.xml文件的一个非常简短/修改的版本,希望没有错误)
请注意,我只缓存“bar”,而不是“foo”。但是,当我使用此映射运行单元测试时,会出现以下错误:
严重:解析XML:XML InputStream时出错(40)元素类型“多对一”的内容必须匹配(元*,(列|公式)*)”
当我取出它时,它工作正常,只是没有L2缓存。
是否只是多对一关系不支持缓存?如果是这样的话,有没有关于如何解决这个问题的建议
仅供参考,我有另一个单元测试,它直接读取“bar”(即,不通过关联),并且工作正常-第二次我获取“bar”时,它从二级缓存中获取,因此我相当有信心我已正确完成其余配置。非常抱歉,仍然在石器时代工作,因此没有注释等。您是否尝试过将
条码的定义移动到另一个,将.hbm.xml
分开,并仅从foo
引用它?您是否尝试过将条码的定义移动到另一个,分离.hbm.xml
并仅从foo
引用它?您的xml格式不正确。它是
内部的非法节点
看见关于多对一元素的声明:
<!ELEMENT many-to-one (meta*,(column|formula)*)>
<!ATTLIST many-to-one name CDATA #REQUIRED>
<!ATTLIST many-to-one access CDATA #IMPLIED>
<!ATTLIST many-to-one class CDATA #IMPLIED>
<!ATTLIST many-to-one entity-name CDATA #IMPLIED>
<!ATTLIST many-to-one column CDATA #IMPLIED>
<!ATTLIST many-to-one not-null (true|false) #IMPLIED>
<!ATTLIST many-to-one unique (true|false) "false">
<!ATTLIST many-to-one unique-key CDATA #IMPLIED>
<!ATTLIST many-to-one index CDATA #IMPLIED>
<!ATTLIST many-to-one cascade CDATA #IMPLIED>
<!ATTLIST many-to-one outer-join (true|false|auto) #IMPLIED>
<!ATTLIST many-to-one fetch (join|select) #IMPLIED>
<!ATTLIST many-to-one update (true|false) "true">
<!ATTLIST many-to-one insert (true|false) "true">
<!ATTLIST many-to-one optimistic-lock (true|false) "true">
<!ATTLIST many-to-one foreign-key CDATA #IMPLIED>
<!ATTLIST many-to-one property-ref CDATA #IMPLIED>
<!ATTLIST many-to-one formula CDATA #IMPLIED>
<!ATTLIST many-to-one lazy (false|proxy|no-proxy) #IMPLIED>
<!ATTLIST many-to-one not-found (exception|ignore) "exception">
<!ATTLIST many-to-one node CDATA #IMPLIED>
<!ATTLIST many-to-one embed-xml (true|false) "true">
缓存元素可以放置在类级别:
<hibernate-mapping>
<class name="com.test.Foo" table="FOO" >
<cache usage="read-only" />
<id name="id" type="long">
或者对于集合,如set
,map
,bag
等。您的XML格式不正确。它是
内部的非法节点
看见关于多对一元素的声明:
<!ELEMENT many-to-one (meta*,(column|formula)*)>
<!ATTLIST many-to-one name CDATA #REQUIRED>
<!ATTLIST many-to-one access CDATA #IMPLIED>
<!ATTLIST many-to-one class CDATA #IMPLIED>
<!ATTLIST many-to-one entity-name CDATA #IMPLIED>
<!ATTLIST many-to-one column CDATA #IMPLIED>
<!ATTLIST many-to-one not-null (true|false) #IMPLIED>
<!ATTLIST many-to-one unique (true|false) "false">
<!ATTLIST many-to-one unique-key CDATA #IMPLIED>
<!ATTLIST many-to-one index CDATA #IMPLIED>
<!ATTLIST many-to-one cascade CDATA #IMPLIED>
<!ATTLIST many-to-one outer-join (true|false|auto) #IMPLIED>
<!ATTLIST many-to-one fetch (join|select) #IMPLIED>
<!ATTLIST many-to-one update (true|false) "true">
<!ATTLIST many-to-one insert (true|false) "true">
<!ATTLIST many-to-one optimistic-lock (true|false) "true">
<!ATTLIST many-to-one foreign-key CDATA #IMPLIED>
<!ATTLIST many-to-one property-ref CDATA #IMPLIED>
<!ATTLIST many-to-one formula CDATA #IMPLIED>
<!ATTLIST many-to-one lazy (false|proxy|no-proxy) #IMPLIED>
<!ATTLIST many-to-one not-found (exception|ignore) "exception">
<!ATTLIST many-to-one node CDATA #IMPLIED>
<!ATTLIST many-to-one embed-xml (true|false) "true">
缓存元素可以放置在类级别:
<hibernate-mapping>
<class name="com.test.Foo" table="FOO" >
<cache usage="read-only" />
<id name="id" type="long">
或用于集合
、地图
、包
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