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Beginning Hibernate From Novice to Professional phần 10

Hiện nay, ứng dụng của bạn trình bày một danh sách của tất cả các người dùng thông qua một giao diện web duy nhất, nhưng bạn nhận được một yêu cầu thay đổi tất cả các khuôn khổ hướng đối tượng phải trả một số tiền nhất định của sự tôn kính đến MVC, nhưng ít là đúng với mô hình MVC như Cocoa Touch. | 294 APPENDIX B HIBERNATE TOOLS The table-filter element allows you to include and exclude groups of tables from the mapping process on the basis of pattern matches on their names. Where the schemaselection element allows you to specify a set of tables matching a single pattern to be reverse engineered the table-filter element operates within this and allows multiple patterns to be applied to include and exclude tables. Here s an example table-filter match-name NOTEPAD_ARCHIVE exclude true Although the previous schema-selection element included all tables within the current schema that matched the pattern NOTE this table filter excludes any tables that match the pattern NOTEPAD_ARCHIVE from reverse engineering. Table filters are applied in order so using this technique you can build up a filter that only includes a specific set of tables. The table task permits almost total control over the mapping details of the entity. You can select a specific table by catalog schema and name. You can specify the class name that it should take how the primary key column s relate to that class s properties the primary key generator that it should use the column types and properties that they are associated with and the details of the associations formed by foreign key relationships. Our simple example places the generated entity into an appropriate class with a nonstandard primary key property name and a nonstandard type mapping for one of the columns note . It also excludes one of the columns audit from the entity model. table schema PUBLIC name NOTEPAD class com.hibernatebook.tools.Notepad primary-key column name id jdbc-type INTEGER property notepadPk type int primary-key column name note jdbc-type VARCHAR type char property note column name audit exclude true table If it looks like you will have to manage the reverse engineering process to this level of detail it may in fact be more appropriate to create some or all of the mapping files manually which gives you total control .