Lucene.Net.Index.IndexReader.DeleteDocuments C# (CSharp) Method

		public virtual int DeleteDocuments(Term term)
		{
			EnsureOpen();
			TermDocs docs = TermDocs(term);
			if (docs == null)
				return 0;
			int n = 0;
			try
			{
				while (docs.Next())
				{
					DeleteDocument(docs.Doc);
					n++;
				}
			}
			finally
			{
				docs.Close();
			}
			return n;
		}
		

 /// <summary> Deletes all documents containing <code>term</code>.
 /// This is useful if one uses a document field to hold a unique ID string for
 /// the document.  Then to delete such a document, one merely constructs a
 /// term with the appropriate field and the unique ID string as its text and
 /// passes it to this method.  Returns the number of documents deleted.
 /// </summary>
 /// <returns> the number of documents deleted
 /// </returns>
 /// <seealso cref="IndexReader#DeleteDocuments(Term)">
 /// </seealso>
 /// <throws>  IllegalStateException if the index is closed </throws>
 public virtual int DeleteDocuments(Term term)
 {
     lock (directory)
     {
         AssureOpen();
         CreateIndexReader();
         return(indexReader.DeleteDocuments(term));
     }
 }