realmconfiguration对象类型Java

Question

在创建RealmConfiguration时，Swift中是否有与objectTypes参数等效的Java？https://realm.io/docs/Swift/latest/api/classes/realm/configuration.html

我正在移植一个IOS应用程序，它使用多个领域数据存储来分离只读应用程序数据和读/写用户数据，因此我需要指定哪些模型属于哪个领域，以避免当领域在第一个领域中找不到实际属于第二个领域的模型时出现RealMigrationNeedException。

编辑：

好的，当我从RealmObject扩展一个新模型（TLGalleryItem）时，下面的异常出现了，该模型要保存在第二个领域实例中。如果我移除对模型的所有引用，并移除对模型的RealmObject的继承，那么异常就会消失。当我从RealmObject扩展模型（代码中仍然没有对它的引用）时，我得到了以下信息：

04-23 08:43:35.603 26777-26777/com.(my project name).android.(my project name) E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.(my project name).android.(my project name), PID: 26777
    java.lang.ExceptionInInitializerError
        at com.(my project name).android.(my project name).activities.insightFinder.ThemesActivity.<init>(ThemesActivity.kt:23)
        at java.lang.Class.newInstance(Native Method)
        at android.app.Instrumentation.newActivity(Instrumentation.java:1173)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2708)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892)
        at android.app.ActivityThread.-wrap11(Unknown Source:0)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593)
        at android.os.Handler.dispatchMessage(Handler.java:105)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6541)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767)
     Caused by: io.realm.exceptions.RealmMigrationNeededException: Cannot open the read only Realm. 'TLGalleryItem' is missing.
        at io.realm.Realm.<init>(Realm.java:179)
        at io.realm.Realm.createInstance(Realm.java:435)
        at io.realm.RealmCache.doCreateRealmOrGetFromCache(RealmCache.java:342)
        at io.realm.RealmCache.createRealmOrGetFromCache(RealmCache.java:282)
        at io.realm.Realm.getInstance(Realm.java:364)
        at com.(my project name).android.(my project name).data.DBService.<clinit>(DBService.kt:21)
        at com.(my project name).android.(my project name).activities.insightFinder.ThemesActivity.<init>(ThemesActivity.kt:23) 
        at java.lang.Class.newInstance(Native Method) 
        at android.app.Instrumentation.newActivity(Instrumentation.java:1173) 
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2708) 
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2892) 
        at android.app.ActivityThread.-wrap11(Unknown Source:0) 
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1593) 
        at android.os.Handler.dispatchMessage(Handler.java:105) 
        at android.os.Looper.loop(Looper.java:164) 
        at android.app.ActivityThread.main(ActivityThread.java:6541) 
        at java.lang.reflect.Method.invoke(Native Method) 
        at com.android.internal.os.Zygote$MethodAndArgsCaller.run(Zygote.java:240) 
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:767) 

Answer 1

这回答了我的问题:https://stackoverflow.com/A/46609808/8902232

相关信息是：使用模块（...）在RealmConfiguration中。在Kotlin的我看来是这样的：

private val shippedRealmConfig = RealmConfiguration.Builder()
            .name(Realm.DEFAULT_REALM_NAME)
            .assetFile("shippedData.realm")
            .schemaVersion(1)
            .modules(ShippedModule())
            .readOnly()
            .build()

private val shippedRealm = Realm.getInstance(shippedRealmConfig)

@RealmModule(classes = arrayOf(TLTheme::class, TLSymptom::class, TLUnhelpfulBelief::class, TLInsight::class))
private class ShippedModule