FormulaExpression (Keikai Spreadsheet Build 6.1.0.1 API)

All Known Implementing Classes:

FormulaEngineImpl.ErrorFormulaExpressionImpl, FormulaEngineImpl.FormulaExpressionImpl
```
public interface FormulaExpression
```
The parsed result of a formula.

Since:

3.5.0

Author:

dennis

Method Summary

All Methods Instance Methods Abstract Methods
Modifier and Type	Method	Description
`Ref[]`	`getAreaRefs()`
`String`	`getErrorMessage()`	Get the expression parsing error message if any
`String`	`getFormulaString()`
`Ptg[]`	`getPtgs()`	Returns the cached parsing things.
`boolean`	`hasError()`	indicated the expression has parsing error
`boolean`	`isAreaRefs()`
`boolean`	`isMultipleAreaFormula()`	Returns whether this is a multiple-area formula used in char data; e.g.

- Method Detail
  - hasError
```
boolean hasError()
```
    indicated the expression has parsing error
    
    Returns:
  - getErrorMessage
```
String getErrorMessage()
```
    Get the expression parsing error message if any
    
    Returns:
  - getFormulaString
```
String getFormulaString()
```
  - isAreaRefs
```
boolean isAreaRefs()
```
  - getAreaRefs
```
Ref[] getAreaRefs()
```
  - getPtgs
```
Ptg[] getPtgs()
```
    Returns the cached parsing things.
    
    Since:
    
    3.6.0
  - isMultipleAreaFormula
```
boolean isMultipleAreaFormula()
```
    Returns whether this is a multiple-area formula used in char data; e.g. (A1, B1, Sheet2!A1:B2).
    
    Since:
    
    3.6.0