Method FilterKey

FilterKey(Object)

Implement the interface IKeyFilter to provide implementation for the FilterKey() method. Providing this interface is optional.

Declaration
bool FilterKey(object key)
Parameters
Type Name Description
System.Object key

Key for filtering

Returns
Type Description
System.Boolean

Returns if map has to be applied or not.
Examples

Following example illustrate the usage of FilterKey. 

public class MapReduceKeyFilter : IKeyFilter
{
 public bool FilterKey(object key)
  {
   try
   {
       if (key.ToString().Contains("hungry"))
       {
           return true;
       }

   }
   catch (Exception exp)
   {
       //handle exception
   }
   return false;
  }
}