> For the complete documentation index, see [llms.txt](https://docs.peoplelogic.dev/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.peoplelogic.dev/guides/getting-started-with-the-talent-agent-sdk/working-with-documents/document-listeners.md).

# Document Listeners

The `DocumentListener` interface allows your custom code to be alerted when batches of Document sections have been processed or when the whole batch of Documents has been completed. 

{% hint style="info" %}
Remember, a single file that was uploaded will be broken down into many Document objects depending on the DocumentProcessors that run on it.
{% endhint %}

{% code title="DocumentListener.java" %}

```java
public interface DocumentListener {
    default void documentBatchIngestStarted(List<Document> batch) {};
    default void documentBatchIngestFinished(List<Document> batch) {};
    default void documentIngestionComplete(List<List<Document>> batch) {};
}
```

{% endcode %}

Here's a very simple pseudo-code example within a tool where we are taking a file from the filesystem, ingesting it through our ContentRetriever and waiting for everything to be completely finished:

```java
AtomicBoolean finishedLoading = new AtomicBoolean(false);
public void doWork() {
    byte[] byteArray = file.getContentAsByteArray();
    
    contentRetriever.ingestDocument(fileName, byteArray);
    
    while (!finishedLoading.get()) {
        log.info("Still loading...");
        Thread.sleep(2500);
    }
}

@Override
public void documentIngestionComplete(List<List<Document>> batch) {
    log.info("Finished processing demand attachments. Ready to continue.");
    finishedLoading.set(true);
}
```

Other use cases might use these listeners to call a webhook or send an actual notification.


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