Hello @sams16001423
You can utilise the JCR API. The JCR API allows you to query nodes in the JCR with the "JCR_SQL2 search queries". I have provided an example for you below where we are querying for all JCR node-type [dam:AssetContent] under the path "/content/dam/my-project". If results are returned, then we will print each jcr:lastModified (the dam:AssetContent node composes of the jcr:lastModified values). Making a query like this is awesome because you don't need to worry about nested folders.
JCR API - JCR_SQL2 Example Search in the Backend:
private void doExampleSearch(ResourceResolver resolver) throws RepositoryException {
Session session = resolver.adaptTo(Session.class);
QueryManager queryManager = session.getWorkspace().getQueryManager();
String selectQuery = "SELECT * FROM [dam:AssetContent] WHERE ISDESCENDANTNODE ([/content/dam/my-project])";
Query query = queryManager.createQuery(selectQuery, Query.JCR_SQL2);
QueryResult queryResults = query.execute();
if (queryResults != null) {
NodeIterator resultNodes = queryResults.getNodes();
while (resultNodes.hasNext()) {
Node node = resultNodes.nextNode();
System.out.println(node.getProperty("jcr:lastModified").getString();
}
}
}
Before the implementation code, you should familiarize yourself with JCR_SQL2 queries. You can test your queries directly from http://localhost:4502/crx/de/index.jsp; tools (drop-down menu item) > query. A tutorial for JCR_SQL2 query language for beginners can be found here: https://sourcedcode.com/aem-jcr-sql2-tutorial-and-examples-and-cheatsheet.
I hope this helps.
