public Lucene.Net.Search.Filter GetCachedFilter(FilterKey key)
 {
     try
     {
         return (Lucene.Net.Search.Filter) cache[key];
     }
     catch (NullReferenceException)
     {
         return null;
     }
 }
 public Lucene.Net.Search.Filter GetCachedFilter(FilterKey key)
 {
     try
     {
         return((Lucene.Net.Search.Filter)cache[key]);
     }
     catch (NullReferenceException)
     {
         return(null);
     }
 }
 public void AddCachedFilter(FilterKey key, Lucene.Net.Search.Filter filter)
 {
     cache.Put(key, filter);
 }
 public void AddCachedFilter(FilterKey key, Lucene.Net.Search.Filter filter)
 {
     cache.Put(key, filter);
 }