FormulaValue (OpenJUMP 2.4.0 API)

java.lang.Object
- de.fho.jump.pirol.utilities.FormulaParsing.FormulaValue

Direct Known Subclasses:

AcosOperation, AsinOperation, AtnaOperation, AttributeValue, ConstantValue, CosOperation, ExpOperation, GenericOperation, Log10Operation, LogarithmOperation, PiValue, SinOperation, SquareRootOperation, TanOperation, ToDegreesOperation, ToRadiansOperation
```
public abstract class FormulaValue
extends Object
```
Base class for each sub-formula or value of a formula, since we don't want to parse the formula again and again for each value...

Version:

$Rev$

Author:

Ole Rahn

FH Osnabrück - University of Applied Sciences Osnabrück,
Project: PIROL (2005),
Subproject: Daten- und Wissensmanagement

Field Summary

Fields
Modifier and Type Field Description

protected PersonalLogger logger

Constructor Summary

Constructors
Constructor Description

FormulaValue()

Method Summary

All Methods Instance Methods Abstract Methods Concrete Methods
Modifier and Type	Method	Description
`abstract double`	`getValue(Feature feature)`	Returns the value (as a double) of this part of the formula.
`abstract boolean`	`isFeatureDependent()`	Helps to determine, if the value depends on a feature's attribute value.
`String`	`toString()`

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

- Field Detail
  - logger
```
protected PersonalLogger logger
```
- Constructor Detail
  - FormulaValue
```
public FormulaValue()
```
- Method Detail
  - getValue
```
public abstract double getValue(Feature feature)
```
    Returns the value (as a double) of this part of the formula. It may be the result of a sub-formula, a feature-specific attribute value or just a constant value... Since the value may depend on a feature, we give the feature to the method to get a unified interface...
    
    Returns:
    
    value of this part of the formula
  - isFeatureDependent
```
public abstract boolean isFeatureDependent()
```
    Helps to determine, if the value depends on a feature's attribute value.
    
    Returns:
    
    true, if the value depends on a feature
  - toString
```
public String toString()
```
    Overrides:
    
    toString in class Object