@Override
	public void domainFileAdded(DomainFile file) {
		indexFile(file);
		indexListeners.invoke().indexUpdated();
	}
@param indexType IndexType enum
@param mappingFunc bifunc that returns value that will be used to lookup the file
@param indexedFiles map of index keyvalue to fileId (either string or list of strings)
Ghidra/Features/Base/src/main/java/ghidra/plugin/importer/ProjectIndexService.java