GeometryDoubleFunction (Geotools modules 31-SNAPSHOT API)

Object
- Function
- - GeometryDoubleFunction

```
public abstract class GeometryDoubleFunction
extends Function
```
An sqlite function that operates on a Geopackage Geometry BLOB and returns a double

Author:

Andrea Aime

- Nested Class Summary
  - Nested classes/interfaces inherited from class Function
    Function.Aggregate, Function.Window
- Field Summary
  - Fields inherited from class Function
    FLAG_DETERMINISTIC
- Constructor Summary
  
  Constructors
  Constructor Description
  
  GeometryDoubleFunction()
- Method Summary
  
  All Methods Instance Methods Abstract Methods Concrete Methods
  Modifier and Type Method Description
  
  abstract double execute(GeoPkgGeomReader reader)
  
  protected void xFunc()
  - Methods inherited from class Function
    args, create, create, create, destroy, destroy, error, result, result, result, result, result, result, value_blob, value_double, value_int, value_long, value_text, value_type
  - Methods inherited from class Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail
- GeometryDoubleFunction
```
public GeometryDoubleFunction()
```

Method Detail

execute

public abstract double execute(GeoPkgGeomReader reader)
                        throws IOException,
                               SQLException

Throws:: IOException; SQLException

xFunc

protected void xFunc()
              throws SQLException

Specified by:: xFunc in class Function
Throws:: SQLException