VisibilityExpEvaluator (Apache HBase 1.2.12 API)

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```
@InterfaceAudience.Public
@InterfaceStability.Evolving
public interface VisibilityExpEvaluator
```
During the read (ie. get/Scan) the VisibilityController calls this interface for each of the Cell. Depending on the evaluate() result, a cell can be either included or filtered out from the read results.

- Method Summary
  
  Methods
  Modifier and Type Method and Description
  
  boolean evaluate(Cell cell)
  Evaluates whether the passed cell passes Scan/Get Authorization.

- Method Detail
  - evaluate
```
boolean evaluate(Cell cell)
                 throws IOException
```
    Evaluates whether the passed cell passes Scan/Get Authorization.
    
    Parameters:
    cell - Cell under evaluation
    
    Returns:
    true if this cell can be included in the Result. Else false.
    
    Throws:
    
    IOException

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