listCollections()
A MilvusClient interface. This method lists all the collections.
R<ListCollectionsResponse> listCollections(ListCollectionsParam requestParam);
ListCollectionsParam
Use the ListCollectionsParam.Builder
to construct a ListCollectionsParam
object.
import io.milvus.param.highlevel.collection.ListCollectionsParam;
ListCollectionsParam.Builder builder = ListCollectionsParam.newBuilder();
Methods of ListCollectionsParam.Builder
:
Method | Description | Parameters |
---|---|---|
build() | Construct a ListCollectionsParam object. | N/A |
The ListCollectionsParam.Builder.build()
method can throw the following exceptions:
ParamException
is raised if the parameter is invalid.
Returns
This method catches all the exceptions and returns an R<ListCollectionsResponse>
object.
- If the API fails on the server side, it returns the error code and message from the server.
- If the API fails by RPC exception, it returns
R.Status.Unknow
and the error message of the exception. - If the API succeeds, it returns a valid
ListCollectionsResponse
held by the R template.
Example
import io.milvus.param.highlevel.collection.*;
ListCollectionsParam param = ListCollectionsParam.newBuilder()
.build();
R<ListCollectionsResponse> response = client.listCollections(param);
if (response.getStatus() != R.Status.Success.getCode()) {
System.out.println(response.getMessage());
}
for (String collectionName : response.getData().collectionNames) {
System.out.println(collectionName);
}