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我有這些實體:如何使用greenDAO加載另一個對象內的對象?
public class Category {
private Long id;
private String name;
private Integer color;
}
public class Item {
private Long id;
private String name;
private String groupType;
private Category category;
}
我應該如何建模greenDAO有項目對象中分類?
編輯:
生成器代碼:
public class GreenDaoGenerator {
public static final String DEFAULT_PACKAGE = "xxxxx";
public static void main(String[] args) throws Exception {
Schema schema = new Schema(1, DEFAULT_PACKAGE + ".entity");
schema.setDefaultJavaPackageDao(DEFAULT_PACKAGE + ".dao");
addCategory(schema);
addItem(schema);
DaoGenerator daoGenerator = new DaoGenerator();
daoGenerator.generateAll(schema, "Generated Files");
}
private static void addItem(Schema schema) {
Entity entity = schema.addEntity("Item");
entity.addIdProperty();
entity.addStringProperty("Name");
entity.addStringProperty("GroupType");
Property IdProperty = entity.addLongProperty("categoryId").getProperty();
entity.addToOne(schema.getEntities().get(0), IdProperty);
}
private static void addCategory(Schema schema) {
Entity entity = schema.addEntity("Category");
entity.addIdProperty();
entity.addStringProperty("Name");
entity.addIntProperty("Color");
}
}
我做了你的答案後,請如果我做正確的方式來看看。謝謝。
我加入了發電機碼您的評論後,可你看看,看看,如果我這樣做請正確的方式。謝謝 –
是的,你的代碼看起來不錯。生成後,Item項目實體將擁有一個具有getter和setter的Category類成員。 –
是的,它按預期工作。謝謝! –