realm

Best practice and how to implement RealmList that need to support different types of objects

由 爱⌒轻易说出口 提交于 2019-12-24 13:56:25
问题 I have a model 'A' that have a list that can be of type 'B' or 'C' and more. I know Polymorphism is not supported by Realm and i cant just do RealmList<RealmObject> or RealmList<? extends RealmObject> . I just can't figure out how to implement this behavior with Realm. 回答1: Polymorphism support is tracked here: https://github.com/realm/realm-java/issues/761 , but as long as it isn't implemented you have to use composition instead (https://en.wikipedia.org/wiki/Composition_over_inheritance) In

Sharing a Realm Database between a user's devices

由 情到浓时终转凉″ 提交于 2019-12-24 13:49:03
问题 Is there a formal way for a Realm Database to be shared between a users iPhone and iPad? Clearly that will need some kind of server that a database can be pushed and pulled from. Is there a solution for this, like is there a way to use iCloud? If not does anyone one have any ideas for a path of least resistance for implementing this myself? Found this chat on the Realm's GitHub page https://github.com/realm/realm-cocoa/issues/913 I am still hoping someone here has got around this issue? 回答1:

珠联璧合 | ServiceComb 集成 Shiro 实践

由 旧时模样 提交于 2019-12-24 11:41:36
【推荐】2019 Java 开发者跳槽指南.pdf(吐血整理) >>> Shiro简介 Apache Shiro是一款功能强大、易用的轻量级开源Java安全框架，它主要提供认证、鉴权、加密和会话管理等功能。Spring Security可能是业界用的最广泛的安全框架，但是Spring Security和Spring耦合的太重，脱离了Spring框架就使用不了，所以一个轻量级的安全框架有时也是一个非常不错的选择。 Shiro主要通过安全API来提供四个方面使用： 认证 Authentication –提供用户身份，可以理解为登录验证。 授权 Authorization –访问控制，也就是通常所讲ACL（Access Control List）的RBAC（Role Base Access Control）或者ABAC(Attribute Base Access Control)。 加密 Cryptography –加密、保护数据，确保数据安全。 会话管理 Session Management –登录后的会话管理，Shiro有独立的会话管理机制，可以是J2EE的会话，也可以是普通Java应用的。 Shiro有几个关键的核心概念：Subject，SecurityManager和Realms，我们简单的介绍下这几个概念的含义： Subject 权限责任主体，主要是让系统识别要管理的对象

Realm Database read data from Android

由 倾然丶 夕夏残阳落幕 提交于 2019-12-24 10:37:07
问题 I am new to realm database so need some help. When I kill my app then come back to the app again, I am unable to retrieve the data which was saved in retrofit . Insertion is working perfectly. Here is my code : Insert Code inside callJson Method: realm.beginTransaction(); realmCities = realm.copyToRealm(clientContactList); realm.commitTransaction(); Response after inserting when i am logging : path : /data/data/com.xyz.da/files/default.realm response from realm : E/Output: ClientContact =

adding kotlin-kapt cause of getting Can not resolve symbol DaggerApplicationComponent error

由 假如想象 提交于 2019-12-24 10:24:10
问题 I did not already have any problem with Dagger as far i don't add Realm in my project, after adding that on my project i expect i can build successful my project but i get this error now: Can not resolve symbol DaggerApplicationComponent i want to need Realm on my application and i can't remove that, but i dont get any other error on Logcat to know whats problem and i should be fix that and I'm not sure how can i resolve this problem when i have this lines in build.gradle i dont have problem

Why can't I use private on a Realm property

由 折月煮酒 提交于 2019-12-24 10:00:00
问题 I am trying to store an enum case in RealmSwift. But Realm doesn't support enums. This article suggests a cool solution. In it they prepend private to the one property in the Realm class so as to prevent it from being set or read from outside the class, and then use some getters and setters on another property to read and write to that private property. Here is my version of that solution: @objcMembers class PlaylistRealmObject: Object { dynamic var id: String = UUID().uuidString dynamic var

Realm with React Native, how to query through list objects

由 試著忘記壹切 提交于 2019-12-24 08:36:55
问题 I noticed this question (Use React Native Realm to Query through multiple List Objects) but was unable to get my query to work with the provided answer from @blackpla9ue. I have the following schemas/models, and I want to query where ProductReview->productId is equal to 123, and Review->reviewText contains "a simple string". This query simply returns all reviews for productId 123. let allReviews = realm.objects('ProductReview', 'productId = "123"); let reviews = allReviews.filtered('reviews

Storing LatLng using Android Realm

由 可紊 提交于 2019-12-24 08:23:38
问题 What is there cleaner whay of storing a RealmObject that contains a Google's LatLng object int Realm? Area { Latlat coord; String name } 回答1: Although it might seem natural to save the data as an object LatLng { double lat; double lng; } remember that Realm is an object store - if you create an object, it will be stored in a table (entity). As suggested by Mohammed Ra (in the comment above), you should store an object which contains the fields latitude and longitude, both as double class Area

realm response status = 400

由 感情迁移 提交于 2019-12-24 08:11:48
问题 I'm trying to share a realm between users for a proof-of-concept messaging app on Android. I have a realm with access url: realm://192.168.1.90:9080/lynxenger/contacts , the realm exists and has one register, but when I try to change it's permissions using an admin user that created the realm, I get the following on the log: E/REALM_SYNC: Connection[2]: HTTP: Failed to switch protocols (response status = 400) Here's a Gist with the code I use to change permissions and update some data EDIT:

Swift Copy of Realm File - Not Working

由 ﹥＞﹥吖頭↗ 提交于 2019-12-24 07:49:49
问题 Swift version 3. I am working on copying my realm.default file into my application upon start if it doesn't exist so that I can package it as part of distribution. The file needs to be mutable so I am copying it over to the documents directory. Unfortunately I am getting an error that the file doesn't exist. I have verified that the paths are correct, and that the .app has the file in it. With that being said, the file has a white circle with a line on it (do not enter type) and says that I
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