/// <summary>
/// Deletes all the documents containing the terms
/// </summary>
/// <param name="terms">The terms to be deleted</param>
/// <returns>A number of documents deleted</returns>
public virtual int OptimizedDeleteDocuments(Term[] terms)
{
lock (directory)
{
AssureOpen();
CreateIndexReader();
return(indexReader.OptimizedDeleteDocuments(terms));
}
}