Each class in the relationship model can be mapped to an entity EJB component.

关系模型中的每个类均可以映射一个实体e JB组件。

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First, examine this relationship from the Book class side of the equation.

首先，从Book类这一侧分析这种关系。

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The ResourcePermission class understands the owner relationship.

resourcepermission类理解所有者关系。

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