alterAlias()

A MilvusClient interface. This method alters an alias from one collection to another.

R<RpcStatus> alterAlias(AlterAliasParam requestParam);

AlterAliasParam

Use the AlterAliasParam.Builder to construct an AlterAliasParam object.

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

Methods of AlterAliasParam.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 alter the alias to.
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 to alter. Collection alias cannot be empty or null.	alias: The alias to alter.
build()	Constructs a CreateAliasParam object.

The AlterAliasParam.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.Unknown and the error message of the exception.

• If the API succeeds, it returns R.Status.Success.

Example

import io.milvus.param.*;

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