GetStream-IO將沒有f​​oreignId的活動添加到多個提要，但這些活動共享相同的Id

Question

我正在使用Stream Java客戶端版本1.3.2。

我有三個平板customer飼料：customer:101，customer:102和customer103。

還有一個平面timeline飼料，timeline:201，它跟隨上述三個customer飼料。

我添加了一個活動到customer:101。該活動的to字段設置爲customer:102和customer:103。

該活動現在應該位於三個customer供稿和timeline供稿中。

foreignId和time字段未針對該活動設置。我是否應該期望同一活動在不同的Feed中有不同的id？

我的印象是，如果我不設置上的活動foreignId和time領域，在不同的飼料相同的活動都會有不同的id秒。但從目前爲止我看到的情況似乎並非如此。

這裏是我的代碼片段：

Feed feedOne = streamClient.newFeed("customer", "101"); 
FlatActivityServiceImpl<SimpleActivity> feedOneService = 
    feedOne.newFlatActivityService(SimpleActivity.class); 

Feed feedTwo = streamClient.newFeed("customer", "102"); 
FlatActivityServiceImpl<SimpleActivity> feedTwoService = 
    feedTwo.newFlatActivityService(SimpleActivity.class); 

Feed feedThree = streamClient.newFeed("customer", "103"); 
FlatActivityServiceImpl<SimpleActivity> feedThreeService = 
    feedThree.newFlatActivityService(SimpleActivity.class); 

Feed timeline = streamClient.newFeed("timeline", "201"); 
FlatActivityServiceImpl<SimpleActivity> timelineService = 
    timeline.newFlatActivityService(SimpleActivity.class); 

timeline.follow("customer", "101", 0); 
timeline.follow("customer", "102", 0); 
timeline.follow("customer", "103", 0); 

// Create a new activity 
SimpleActivity activity = new SimpleActivity(); 
activity.setActor("customer:101"); 
activity.setObject("tweet:1"); 
activity.setVerb("tweet"); 
activity.setTo(Arrays.asList("customer:102", "customer:103")); 
feedOneService.addActivity(activity); 

System.out.println("Feed one activities:"); 
feedOneService.getActivities().getResults().forEach(System.out::println); 

System.out.println("Feed two activities:"); 
feedTwoService.getActivities().getResults().forEach(System.out::println); 

System.out.println("Feed Three activities:"); 
feedThreeService.getActivities().getResults().forEach(System.out::println); 

System.out.println("Timeline activities:"); 
timelineService.getActivities().getResults().forEach(System.out::println); 

我得到了以下的輸出：

13:34:11.835 [main] DEBUG i.g.c.a.repo.StreamRepositoryImpl - Invoking url: 'https://us-east-api.getstream.io/api/v1.0/feed/timeline/201/following/?api_key= 
13:34:12.323 [main] DEBUG i.g.c.a.repo.StreamRepositoryImpl - Invoking url: 'https://us-east-api.getstream.io/api/v1.0/feed/timeline/201/following/?api_key= 
13:34:12.433 [main] DEBUG i.g.c.a.repo.StreamRepositoryImpl - Invoking url: 'https://us-east-api.getstream.io/api/v1.0/feed/timeline/201/following/?api_key= 
13:34:12.573 [main] DEBUG i.g.c.a.r.StreamActivityRepository - Invoking url: 'https://us-east-api.getstream.io/api/v1.0/feed/customer/101/?api_key=' 
Feed one activities: 
13:34:12.817 [main] DEBUG i.g.c.a.r.StreamActivityRepository - Invoking url: 'https://us-east-api.getstream.io/api/v1.0/feed/customer/101/?api_key=w&limit=25' 
SimpleActivity{id=f3d610da-81df-11e7-8080-80000cce824c, actor=customer:101, verb=tweet, object=tweet:1, target=null, time=Tue Aug 15 13:34:12 EDT 2017, to=[customer:102, customer:103], origin=null, score=null, duration=null} 
Feed two activities: 
13:34:12.892 [main] DEBUG i.g.c.a.r.StreamActivityRepository - Invoking url: 'https://us-east-api.getstream.io/api/v1.0/feed/customer/102/?api_key=w&limit=25' 
SimpleActivity{id=f3d610da-81df-11e7-8080-80000cce824c, actor=customer:101, verb=tweet, object=tweet:1, target=null, time=Tue Aug 15 13:34:12 EDT 2017, to=[customer:102, customer:103], origin=null, score=null, duration=null} 
Feed Three activities: 
13:34:12.963 [main] DEBUG i.g.c.a.r.StreamActivityRepository - Invoking url: 'https://us-east-api.getstream.io/api/v1.0/feed/customer/103/?api_key=&limit=25' 
SimpleActivity{id=f3d610da-81df-11e7-8080-80000cce824c, actor=customer:101, verb=tweet, object=tweet:1, target=null, time=Tue Aug 15 13:34:12 EDT 2017, to=[customer:102, customer:103], origin=customer:102, score=null, duration=null} 
Timeline activities: 
13:34:13.012 [main] DEBUG i.g.c.a.r.StreamActivityRepository - Invoking url: 'https://us-east-api.getstream.io/api/v1.0/feed/timeline/201/?api_key=&limit=25' 
SimpleActivity{id=f3d610da-81df-11e7-8080-80000cce824c, actor=customer:101, verb=tweet, object=tweet:1, target=null, time=Tue Aug 15 13:34:12 EDT 2017, to=[customer:102, customer:103], origin=customer:103, score=null, duration=null} 

這是預期的行爲？我期望他們都有不同的id s。

Answer 1

對此致電的混淆抱歉。由於您使用的是收件人字段，因此它將相同的有效內容寫入每個Feed，因爲它們具有相同的time字段的確會具有相同的活動ID值。如果您在不同的調用中編寫了活動，它應該給出不同的活動ID值。

使用活動ID發出刪除，但是，具體的只有一個單一的飼料，所以調用，比如：

feedTwoService.deleteActivity('f3d6...824c'); 

...應該只從一個飼料刪除活動。

如果是使用foreign_id值，並且使用該foreign_id在原飼料刪除調用，它也將從通過後續關係有一個副本的任何飼料刪除的活動等