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使用现有领域数据库

[英]using exist realm database

I have an existing realm db and I need to read and query it.我有一个现有的领域数据库,我需要阅读和查询它。 I used the following code to assing it as default realm obj so that when ever I call Realm class it points to my db but when I use getDefalutConfiguration() method it doesn't returns my assigned db.我使用以下代码将其分配为默认领域 obj,因此当我调用 Realm 类时,它指向我的数据库,但是当我使用 getDefalutConfiguration() 方法时,它不会返回我分配的数据库。 instead it returns the defult.realm db which has made internally.相反,它返回内部创建的 defult.realm db。 this is the colde:这是寒冷:

Realm.init(this);
RealmConfiguration realConfig = new RealmConfiguration.Builder()
        .assetFile("assets\\databases.realm")
        .readOnly()
        .build();
Realm.setDefaultConfiguration(realConfig);

The asserFile is used as initial database for the database by copying it to the location according to the configuration, but only if the file does not already exist.通过根据配置将asserFile复制到该位置,将asserFile用作数据库的初始数据库,但asserFile是该文件尚不存在。 Are you sure that there are not already an existing default.realm present?您确定还没有现有的default.realm吗?

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