extract method Leave feedback
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Extracts data from documents.
The extract method of the Indexer class only extracts data from documents using the extraction services of the network, without indexing. The data extracted from each document are passed to the data_extracted event, and the completion of the operation is reported by the extraction_completed event.
def extract(self, documents, passwords, options):
...
| Parameter | Type | Description |
|---|---|---|
| documents | List[Document] |
The documents to be extracted. |
| passwords | List[str] |
The document passwords. |
| options | IndexingOptions |
The extraction options. |
import threading
from groupdocs.search.options import IndexingOptions
# `node` is the master node of a configured and started search network;
# `documents` and `passwords` are the lists Indexer.add takes
extracted_data = []
lock = threading.Lock()
def on_data_extracted(sender, args):
with lock: # raised on engine worker threads
extracted_data.append(args.data)
node.events.data_extracted += on_data_extracted
node.events.extraction_completed += lambda sender, args: print("Extraction completed")
node.indexer.extract(documents, passwords, IndexingOptions())
These names call extract too, limited to the overloads listed.
| Alias | Accepts |
|---|---|
extract_ilist |
extract_ilist(documents, passwords, options) |
- class
Indexer
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