//--------------------------------------------------------------------------
// given a group we retreive a list of words locations that match the query
// words in the group
public bool GetWordsLocationDetails(
Group group,
GetWordsLocationDetailsCallback callback)
{
if (callback == null)
{
return(false);
}
return(_workerThread.PostTask(_ => {
try {
// now query the locations
List <WordLocationDetails> result =
ContainsService.Instance.Query(group);
callback(result, true, null);
} catch (Exception e) {
callback(null, false, e.Message);
}
}));
}
//--------------------------------------------------------------------------
// given document properties and word location properties - we retreive a
// list of words locations that match the query
public bool GetWordsLocationDetails(
List <DocumentProperty> documentProperties,
List <WordLocationProperty> wordLocationProperties,
GetWordsLocationDetailsCallback callback)
{
if (callback == null)
{
return(false);
}
return(_workerThread.PostTask(_ => {
try {
// first query documents
List <Document> documents = new List <Document>();
// an empty documentProperties list means ALL documents, so we can
// skip querying the documents and pass an empty list of documents to
// the next query (ContainsService)
if (documentProperties.Count > 0)
{
documents = DocumentsService.Instance.Query(new List <string>(),
documentProperties);
if (documents.Count == 0)
{
// if we didn't get any document, then we can stop
// otherwise, we'll query the entire DB...
callback(new List <WordLocationDetails>(), true, null);
return;
}
}
// now query the locations
List <WordLocationDetails> result =
ContainsService.Instance.Query(documents, wordLocationProperties);
callback(result, true, null);
} catch (Exception e) {
callback(null, false, e.Message);
}
}));
}