Remember
Synopsis
This operator stores the given object in the object store of the process. The stored object can be retrieved from the store by using the Recall operator.
Description
The Remember operator can be used to store the input object into the object store of the process under the specified name. The name of the object is specified through the name parameter. The io object parameter specifies the class of the object. The stored object can later be restored by the Recall operator by using the same name and class (i.e. the name and class that was used to store it using the Remember operator). There is no scoping mechanism in RapidMiner processes therefore objects can be stored (using Remember operator) and retrieved (using Recall operator) at any nesting level. But care should be taken that the execution order of operators is such that the Remember operator for an object always executes before the Recall operator for that object. The combination of these two operators can be used to build complex processes where an input object is used in completely different parts or loops of the processes.
Differentiation
Recall
The Remember operator is always used in combination with the Recall operator. The Remember operators stores the required object into the object store and the Recall operator retrieves the stored object when required.
Input
store
Any object can be provided here. This object will be stored in the object store of the process. It should be made sure that the class of this object is selected in the io object parameter.
Output
stored
The object that was given as input is passed without changing to the output through this port. It is not compulsory to attach this port to any other port, the object will be stored even if this port is left without connections.
Parameters
Name
The name under which the input object is stored is specified through this parameter. The same name will be used for retrieving this object through the Recall operator.
Io object
The class of the input object is selected through this parameter.