public DataSource withRelationalDatabaseConfig(RelationalDatabaseDataSourceConfig relationalDatabaseConfig) {
        setRelationalDatabaseConfig(relationalDatabaseConfig);
        return this;
    }
<p>
Relational database settings.
</p>

@param relationalDatabaseConfig
       Relational database settings.
@return Returns a reference to this object so that method calls can be chained together.
aws-java-sdk-appsync/src/main/java/com/amazonaws/services/appsync/model/DataSource.java