realm

How to combine Retrofit 2 with Realm and RxJava

由 血红的双手。 提交于 2020-01-02 10:04:11
问题 I want to save retrofit responses to realm on the background thread then pass it to the UI Thread, but its a bit tricky since Realm is very touchy with threads. so the code would look like something like this, please submit your edits to all better solutions :) restApi.userRealmList() .doOnNext(userRealmModels -> { if (userRealmModels != null){ mRealm = Realm.getInstance(mContext); mRealm.asObservable() .map(realm -> mRealm.copyToRealmOrUpdate(userEntity)) .subscribe(new Subscriber<Object>()

Is it possible in realm to change the primary key later..?

由 可紊 提交于 2020-01-02 05:39:07
问题 I set a temporary primary locally and save the object to realm, and later the server assigns a unique key for the object and then I want to update the primary key for the object. So is it possible to reassign a primary key for the object? And what happens when we reassign a primary key to the object? Will it save the object with the old primary key? 回答1: It is possible to change the value of a primary key up to Realm 1.2.0. It is prohibited to change primary key value since Realm 2.0.x. 回答2:

realm.xamarin throws error: The method 'Contains' is not supported. same for 'Any'

由 房东的猫 提交于 2020-01-02 05:01:09
问题 i am writing a query which required 'WHERE IN' like clause in realm.xamarin linq query. below is the query i tried: var IdsToMatch = observations.Select(x => x.Id) var results = from d in realm.All<Observations>() where IdsToMatch.Any(p => p == d.Id) select d; also tried this with Contains : var results = from d in realm.All<Observations>() where IdsToMatch.Contains(d.Id) select d; but this throws error: The method 'Contains' is not supported The method 'Any' is not supported What is the

How can I check my realm schema version without opening the realm file?

由 牧云@^-^@ 提交于 2020-01-02 04:54:12
问题 The problem we face is we cannot migrate with the new schema version so we want to wipe out all the realm data clean and create a new one instead (for all the user who have schema version less than this new number). But I cannot find a way for me to know this number except only during in the migration block. Is there a way to know this schema version else where? 回答1: Technically you can't check the schema version without accessing the Realm file at all, but you don't need full access and

How can I create a Realm database with initial data for my android app?

由 时光怂恿深爱的人放手 提交于 2020-01-02 03:14:25
问题 I am trying to create a database for my android application using Realm. I need to have data that is pre-populated when the app is installed. Setting a Realm Migration as part of the RealmConfiguration does not run when the version of the database is 0 (defaults to 0 initially). How can I add data the first time the application is setup? 回答1: Realm Java 0.89 introduced a method that allows for specifying a transaction to be run when a Realm database is created for the first time. This method,

Tomcat 虚拟主机配置

由 邮差的信 提交于 2020-01-02 01:17:34
一、什么是虚拟主机 一台物理机上搭建多个web站点，每个web站点独立运行，互不干扰，这些站点就是"虚拟主机"。 虚拟主机的实现方式： 1、基于主机名的虚拟主机：多个域名解析到同一个IP地址，在WEB服务器里添加多个站点，每个站点设定一个主机名。HTTP协议请求里包含了主机名信息，当WEB服务器收到访问请求时，就可以根据不同的主机名来访问不同的网站。 步骤： a、配置域名与Ip的映射管理（对于本地局域网我们使用在host文件中添加；对于大型网络或者外网网络则需要配置DNS服务器中Ip地址与域名的映射关系） 在C:\Windows\System32\drivers\etc\hosts文件末尾添加： 127.0.0.1 www.jalja1.org 127.0.0.1 www.jalja2.org b、配置server.xml <Host name="www.jalja1.org" appBase="E:/学习/activeMq/app1" unpackWARs="true" autoDeploy="true"> <Valve className="org.apache.catalina.valves.AccessLogValve" directory="logs" prefix="localhost_access_log." suffix=".txt" pattern="%h %l

Calling .getEncoded() on SecretKey returns null

由 二次信任 提交于 2020-01-01 14:59:28
问题 I use the following code to generate an AES key: KeyGenParameterSpec.Builder builder = new KeyGenParameterSpec.Builder("db_enc_key", KeyProperties.PURPOSE_ENCRYPT | KeyProperties.PURPOSE_DECRYPT); KeyGenParameterSpec keySpec = builder .setKeySize(256) .setBlockModes("CBC") .setEncryptionPaddings("PKCS7Padding") .setRandomizedEncryptionRequired(true) .setUserAuthenticationRequired(true) .setUserAuthenticationValidityDurationSeconds(5 * 60) .build(); KeyGenerator keyGen = KeyGenerator

How to insert items at 0 index to the Realm container

由 随声附和 提交于 2020-01-01 14:25:53
问题 Is there a way to insert new items at the 0 index to the Realm container? I don't see an insert method in the Realm class. Do I need to use List s? If the answer is yes, how can I restructure the following code to be able to use List s and keep the List in constant sync with the Realm container. In other words I'm having a hard time coming up with a good way to keep the Realm container and the List with the same items when adding and removing. In the following code new items are entered at

Adding a primary key to a RLMObject requires migration, any ideas how?

由 六眼飞鱼酱① 提交于 2020-01-01 12:42:24
问题 I'm working on an iOS app with Realm.io as the persistent store. I've just updated one of my custom RLMObject subclasses by adding a primary key. When I run the app, I get an error telling me I need to add migration steps: 'Migration is required for object type 'MY_REALM_OBJECT' due to the following errors: - Property 'property_name' has been made a primary key.' I have other migration code but can't find anything in the Realm docs on how to add a primary key to an RLMObject. Anyone know how

Realm gradle tasks

由 北城余情 提交于 2020-01-01 09:50:08
问题 During my profile report of assembleDebug gradle task I discovered two realm related gradle sub-tasks which takes quite big amount of time: assembleDebug - 1m21.44s - transformClassesWithRealmOptionalAPITransformerForDebug - 22.386s - transformClassesWithRealmTransformerForIdeDebug - 10.062s Questions: what exactly those realm related gradle sub tasks do? Can I skip them at some point? why they took so long? (22 + 10 = 32 sec) Update As a workaround I am skipping task via -x script parameter
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