以下是对CMP Entity Bean Account的部分描述:
<entity>
<ejb-name> AccountEJB </ejb-name>
<local-home> model.entity.AccountLocalHome </local-home>
<local> model.entity.AccountLocal </local>
<persistence-type> Container </persistence-type>
<prim-key-class> java.lang.String </prim-key-class>
<reentrant> false </reentrant>
<cmp-version> 2.x </cmp-version>
<abstract-schema-name> Account </abstract-schema-name>
<cmp-field> <field-name> id </field-name> </cmp-field>
<cmp-field> <field-name> name </field-name> </cmp-field>
<cmp-field> <field-name> balance </field-name> </cmp-field>
…
</entity>
a. 写出根据名字查找帐户的java.util.Collection findByName(String name)对应的ejb query语句:_____________________________________________
b. 写出统计所有Account的balance之和的double ejbSelectTotalBankValue()对应的ejb query语句:
C. 写出查找比某一个人钱多的所有帐户的java.util.Collection findRicherThan(String name)对应的ejb query 语句:
<entity>
<ejb-name> AccountEJB </ejb-name>
<local-home> model.entity.AccountLocalHome </local-home>
<local> model.entity.AccountLocal </local>
<persistence-type> Container </persistence-type>
<prim-key-class> java.lang.String </prim-key-class>
<reentrant> false </reentrant>
<cmp-version> 2.x </cmp-version>
<abstract-schema-name> Account </abstract-schema-name>
<cmp-field> <field-name> id </field-name> </cmp-field>
<cmp-field> <field-name> name </field-name> </cmp-field>
<cmp-field> <field-name> balance </field-name> </cmp-field>
…
</entity>
a. 写出根据名字查找帐户的java.util.Collection findByName(String name)对应的ejb query语句:_____________________________________________
b. 写出统计所有Account的balance之和的double ejbSelectTotalBankValue()对应的ejb query语句:
C. 写出查找比某一个人钱多的所有帐户的java.util.Collection findRicherThan(String name)对应的ejb query 语句:
解决方案 »
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