Package org.locationtech.jtstest.geomfunction

Class StaticMethodGeometryFunction

java.lang.Object

org.locationtech.jtstest.geomfunction.BaseGeometryFunction

org.locationtech.jtstest.geomfunction.StaticMethodGeometryFunction

All Implemented Interfaces:

Comparable, GeometryFunction

public class StaticMethodGeometryFunction
extends BaseGeometryFunction

A GeometryFunction which calls a static Method.

Field Summary

Fields

Modifier and Type	Field	Description
private static final String	FUNCTIONS_SUFFIX
private Method	method
private static final String	PARAM_NAME_COUNT
private static final String	PARAM_NAME_DISTANCE
private static final String	PARAM_NAME_TEXT

Fields inherited from class org.locationtech.jtstest.geomfunction.BaseGeometryFunction

category, description, name, parameterNames, parameterTypes, returnType

Constructor Summary

Constructors

Constructor	Description
StaticMethodGeometryFunction(String category, String name, String description, String[] parameterNames, Class[] parameterTypes, Class returnType, Method method)

Method Summary

Modifier and Type	Method	Description
private static Object[]	createFullArgs(Geometry g, Object[] arg)	Creates an arg array which includes the target geometry as the first argument
static StaticMethodGeometryFunction	createFunction(Method method)
private static String[]	defaultParamNames(Method method)
private static String	extractCategory(String className)
private static String	extractDescription(Method method)
private static String[]	extractParamNames(Method method)	Java doesn't permit accessing the original code parameter names, unfortunately.
private static Class[]	extractParamTypes(Method method)
private static int	firstScalarParamIndex(Method method)
static String	getClassname(Class javaClass)
private static String	invocationErrMsg(InvocationTargetException ex)
static Object	invoke(Method method, Object target, Object[] args)
Object	invoke(Geometry g, Object[] arg)	Invokes this function.
private static String	paramNamePrimary(Class<?> clz)

Methods inherited from class org.locationtech.jtstest.geomfunction.BaseGeometryFunction

compareTo, equals, firstScalarParamIndex, getCategory, getDescription, getDoubleOrNull, getIntegerOrNull, getName, getParameterNames, getParameterTypes, getReturnType, getSignature, isBinary, isBinaryGeomFunction

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Details

PARAM_NAME_TEXT

private static final String PARAM_NAME_TEXT

See Also:

• Constant Field Values

PARAM_NAME_COUNT

private static final String PARAM_NAME_COUNT

See Also:

• Constant Field Values

PARAM_NAME_DISTANCE

private static final String PARAM_NAME_DISTANCE

See Also:

• Constant Field Values

FUNCTIONS_SUFFIX

private static final String FUNCTIONS_SUFFIX

See Also:

• Constant Field Values

method

private Method method

Constructor Details

StaticMethodGeometryFunction

public StaticMethodGeometryFunction(String category,
 String name,
 String description,
 String[] parameterNames,
 Class[] parameterTypes,
 Class returnType,
 Method method)

Method Details

createFunction

public static StaticMethodGeometryFunction createFunction(Method method)

extractCategory

private static String extractCategory(String className)

extractParamNames

private static String[] extractParamNames(Method method)

Java doesn't permit accessing the original code parameter names, unfortunately.

Parameters:

method -

Returns:

defaultParamNames

private static String[] defaultParamNames(Method method)

firstScalarParamIndex

private static int firstScalarParamIndex(Method method)

paramNamePrimary

private static String paramNamePrimary(Class<?> clz)

extractDescription

private static String extractDescription(Method method)

extractParamTypes

private static Class[] extractParamTypes(Method method)

invoke

public Object invoke(Geometry g,
 Object[] arg)

Description copied from interface: GeometryFunction

Invokes this function. Note that any exceptions returned must be RuntimeExceptions.

Specified by:

invoke in interface GeometryFunction

Specified by:

invoke in class BaseGeometryFunction

Parameters:

g - the target geometry

arg - the other arguments to the function

Returns:

the value computed by the function

createFullArgs

private static Object[] createFullArgs(Geometry g,
 Object[] arg)

Creates an arg array which includes the target geometry as the first argument

Parameters:

g -

arg -

Returns:

invoke

public static Object invoke(Method method,
 Object target,
 Object[] args)

invocationErrMsg

private static String invocationErrMsg(InvocationTargetException ex)

getClassname

public static String getClassname(Class javaClass)