lujiajing1126 commented on a change in pull request #4:
URL:
https://github.com/apache/skywalking-banyandb-java-client/pull/4#discussion_r746292142
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File path: README.md
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@@ -19,10 +19,81 @@ Create a `BanyanDBClient` with host, port and a
user-specified group and then es
```java
// use `default` group
client = new BanyanDBClient("127.0.0.1", 17912, "default");
-// establish a connection
+// to send any request, a connection to the server must be estabilished
client.connect(channel);
```
+## Schema Management
+
+### Group
+
+To save and fetch data, group and schema must be defined first,
+
+```java
+GroupRegistry groupRegistry = client.groupRegistry();
+// create a group called "default"
+groupRegistry.create("default");
+// list group
+List<String> groups = groupRegistry.list();
+// check existence
+boolean existence = groupRegistry.exist("default");
+```
+
+### Stream
+
+Then we may define a stream with customized configurations,
+
+```java
+StreamMetadataRegistry streamRegistry = client.streamRegistry();
+// build a stream "sw" with 2 shards and ttl equals to 30 days
+Stream s = new Stream("sw", 2, Duration.ofDays(30));
Review comment:
> Wait a moment, I can see stream is created from client, what is the
issue of using client group?
I suppose @hanahmily was referring to the `GroupRegistry`. You can CRUD
groups other than that one set for the client.
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