Extract Token Number
Synopsis
Extracts the number of tokens and adds it to the document's meta data.
Description
This operator counts the number of tokens of the document and will add it to the meta data of the document. Therefore the key is used that might be specified as parameter. If the key already exists, it will be overwritten. Please keep in mind, that the meta data might be added as attribute after the processing of the documents, depending on the parameter of the Process Documents operator.