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# Interface IComputeReducer<TRes, TReduceRes>

Compute reducer which is capable of result collecting and reducing.

###### Namespace: Apache.Ignite.Core.Compute

###### Assembly: Apache.Ignite.Core.dll

##### Syntax

    public interface IComputeReducer<in TRes, out TReduceRes>

##### Type Parameters

Name | Description
--- | ---
TRes | Type of results passed for reducing.
TReduceRes | Type of reduced result.

### Methods

#### Collect(TRes)

Collect closure execution result.

##### Declaration

    bool Collect(TRes res)

##### Parameters

Type | Name | Description
--- | --- | ---
TRes | res | Result.

##### Returns

Type | Description
--- | ---
System.Boolean | `True` to continue collecting results until all closures are finished, `false` to start reducing.

#### Reduce()

Reduce closure execution results collected earlier.

##### Declaration

    TReduceRes Reduce()

##### Returns

Type | Description
--- | ---
TReduceRes | Reduce result.