listCollections()
Addedv2.4.xModifiedv2.6.x
This operation lists all existing collections.
public ListCollectionsResp listCollections()
Request Syntax
listCollections()
RETURN TYPE:
ListCollectionsResp
RETURNS:
A ListCollectionsResp object containing a list of collection names. If there is not any collection, an empty list will be returned.
PARAMETERS:
-
collectionNames (List<String>)
A list of strings containing the names of all existing collections.
-
collectionInfos (List<CollectionInfo>)
A list of CollectionInfo objects. A CollectionInfo object has the following fields:
-
collectionName (String)
The name of a collection.
-
shardNum (Integer)
The number of shards in the above collection.
-
EXCEPTIONS:
-
MilvusClientExceptions
This exception will be raised when any error occurs during this operation.
Example
import io.milvus.v2.client.ConnectConfig;
import io.milvus.v2.client.MilvusClientV2;
import io.milvus.v2.service.collection.response.ListCollectionsResp;
// 1. Set up a client
ConnectConfig connectConfig = ConnectConfig.builder()
.uri("YOUR_CLUSTER_ENDPOINT")
.token("YOUR_CLUSTER_TOKEN")
.build();
MilvusClientV2 client = new MilvusClientV2(connectConfig);
// 2. List collections
ListCollectionsResp listAliasResp = client.listCollections();