Interface IReducer

Apply aggregation and compilation on final result.

Namespace:
Assembly: Alachisoft.NCache.Runtime.dll
Syntax
public interface IReducer : IDisposable

Methods

BeginReduce()

Starting point for initialization of reducer.

Declaration
void BeginReduce()
Examples

Following example illustrate the usage of BeginReduce. 

 public void BeginReduce()
 {
   // Initialization
 }

FinishReduce()

Provides final result of map reduce task.

Declaration
KeyValuePair FinishReduce()
Returns
Type Description
KeyValuePair

Return key-value pair.
Examples
public KeyValuePair FinishReduce()
{
  KeyValuePair kvp = null;
  kvp.Key = key;
  kvp.Value = count;
  return kvp;
 }

Reduce(Object)

Reduces the key-value pair to further meaning full pairs.

Declaration
void Reduce(object value)
Parameters
Type Name Description
System.Object value

Value for the specified key.

Examples

Following example illustrate the usage of Reduce. 

public void Reduce(object value)
{
  count += int.Parse(value.ToString());
}