You can easily bind an entity to an input form for a creation or update scenario or bind a list of entities to a JSF data grid if you want to display information in a table.
You can also select whether you want to display a single record or list and whether to create or update an entity.
您还可以选择是显示单个记录还是一个列表，以及是否创建或者更改一个实体。
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By choosing the preferred display form as the representation of the entity your metadata has a fatal flaw: any change to the display form creates a different entity.