DCount (Keikai Spreadsheet Build 6.0.0 API)

java.lang.Object
- org.apache.poi.ss.formula.functions.DCount

All Implemented Interfaces:

IDStarAlgorithm
```
public final class DCount
extends Object
implements IDStarAlgorithm
```
Implementation of the DCount function: Counts the number of numeric cells in a column in an area with given conditions.

Constructor Summary

Constructors
Constructor Description

DCount()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`boolean`	`allowEmptyMatchField()`	Whether the field value (the 2nd param in DCOUNT, DGET, etc.) can evaluate to empty.
`ValueEval`	`getResult()`	Return a result ValueEval that will be the result of the calculation.
`boolean`	`processMatch(ValueEval eval)`	Process a match that is found during a run through a database.

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - DCount
```
public DCount()
```
- Method Detail
  - processMatch
```
public boolean processMatch(ValueEval eval)
```
    Description copied from interface: IDStarAlgorithm
    
    Process a match that is found during a run through a database.
    
    Specified by:
    
    processMatch in interface IDStarAlgorithm
    
    Parameters:
    
    eval - ValueEval of the cell in the matching row. References will already be resolved.
    
    Returns:
    
    Whether we should continue iterating through the database.
  - getResult
```
public ValueEval getResult()
```
    Description copied from interface: IDStarAlgorithm
    
    Return a result ValueEval that will be the result of the calculation. This is always called at the end of a run through the database.
    
    Specified by:
    
    getResult in interface IDStarAlgorithm
    
    Returns:
    
    a ValueEval
  - allowEmptyMatchField
```
public boolean allowEmptyMatchField()
```
    Description copied from interface: IDStarAlgorithm
    
    Whether the field value (the 2nd param in DCOUNT, DGET, etc.) can evaluate to empty. It is allowed to evaluate to empty for DCOUNT.
    
    Specified by:
    
    allowEmptyMatchField in interface IDStarAlgorithm
    
    Returns:
    
    whether the field value can evaluate to empty