createAlias()

A MilvusClient interface. This method creates an alias for a collection. Alias cannot be duplicated. The same alias cannot be assigned to different collections. Instead, you can specify multiple aliases for each collection.

R<RpcStatus> createAlias(CreateAliasParam requestParam);

CreateAliasParam

Use the CreateAliasParam.Builder to construct a CreateAliasParam object.

import io.milvus.param.CreateAliasParam;
CreateAliasParam.Builder builder = CreateAliasParam.newBuilder();

Methods of CreateAliasParam.Builder:

Method	Description	Parameters
withCollectionName( String collectionName)	Sets the target collection name. Collection name cannot be empty or null.	collectionName: The name of the target collection to create an alias for.
withDatabaseName(String databaseName)	Sets the database name. database name can be null for default database.	databaseName: The database name.
withAlias(String alias)	Sets the collection alias. Collection alias cannot be empty or null.	alias: The alias of the target collection.
build()	Constructs a CreateAliasParam object.	N/A

CreateAliasParam.Builder.build() can throw the following exceptions:

• ParamException: error if the parameter is invalid.

Returns

This method catches all the exceptions and returns an R<RpcStatus> 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 R.Status.Success.

Example

import io.milvus.param.*;

CreateAliasParam param = CreateAliasParam.newBuilder()
        .withCollectionName(COLLECTION_NAME)
        .withAlias("alias1")
        .build();
R<RpcStatus> response = client.createAlias(param)
if (response.getStatus() != R.Status.Success.getCode()) {
    System.out.println(response.getMessage());
}