Package org.locationtech.jtstest.geomfunction

Class RepeaterGeometryFunction

java.lang.Object

org.locationtech.jtstest.geomfunction.RepeaterGeometryFunction

All Implemented Interfaces:

GeometryFunction

public class RepeaterGeometryFunction
extends Object
implements GeometryFunction

Repeats a function a given number of times. If the function has a single numeric argument, the argument will be multiplied by the repeat counter for every call, and the function results will be accumulated into a collection to provide the final result.

Author:

Martin Davis

Constructor Summary

Constructors

Constructor	Description
RepeaterGeometryFunction(GeometryFunction fun, int count)

Method Summary

Modifier and Type	Method	Description
String	getCategory()	Gets the category name of this function
String	getDescription()	Gets the description of this function
String	getName()	Gets the name of this function
String[]	getParameterNames()	Gets the parameter names for this function
Class<?>[]	getParameterTypes()	Gets the types of the other function arguments, if any.
Class<?>	getReturnType()	Gets the return type of this function
String	getSignature()	Gets a string representing the signature of this function.
static boolean	hasRepeatableArg(GeometryFunction fun)
Object	invoke(Geometry geom, Object[] args)	Invokes this function.
boolean	isBinary()
static boolean	isRepeatable(GeometryFunction fun)
boolean	isRequiredB()
static int	repeatableArgIndex(GeometryFunction fun)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.locationtech.jtstest.geomfunction.GeometryFunction

equals

Constructor Detail

RepeaterGeometryFunction

public RepeaterGeometryFunction(GeometryFunction fun,
                                int count)

Method Detail

getCategory

public String getCategory()

Description copied from interface: GeometryFunction

Gets the category name of this function

Specified by:

getCategory in interface GeometryFunction

Returns:

the category name of the function

getName

public String getName()

Description copied from interface: GeometryFunction

Gets the name of this function

Specified by:

getName in interface GeometryFunction

Returns:

the name of the function

getDescription

public String getDescription()

Description copied from interface: GeometryFunction

Gets the description of this function

Specified by:

getDescription in interface GeometryFunction

Returns:

the name of the function

getParameterNames

public String[] getParameterNames()

Description copied from interface: GeometryFunction

Gets the parameter names for this function

Specified by:

getParameterNames in interface GeometryFunction

Returns:

the names of the function parameters

getParameterTypes

public Class<?>[] getParameterTypes()

Description copied from interface: GeometryFunction

Gets the types of the other function arguments, if any.

Specified by:

getParameterTypes in interface GeometryFunction

Returns:

the types

getReturnType

public Class<?> getReturnType()

Description copied from interface: GeometryFunction

Gets the return type of this function

Specified by:

getReturnType in interface GeometryFunction

Returns:

the type of the value returned by this function

getSignature

public String getSignature()

Description copied from interface: GeometryFunction

Gets a string representing the signature of this function.

Specified by:

getSignature in interface GeometryFunction

Returns:

the string for the function signature

isBinary

public boolean isBinary()

Specified by:

isBinary in interface GeometryFunction

isRequiredB

public boolean isRequiredB()

Specified by:

isRequiredB in interface GeometryFunction

invoke

public Object invoke(Geometry geom,
                     Object[] args)

Description copied from interface: GeometryFunction

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

Specified by:

invoke in interface GeometryFunction

Parameters:

geom - the target geometry

args - the other arguments to the function

Returns:

the value computed by the function

isRepeatable

public static boolean isRepeatable(GeometryFunction fun)

hasRepeatableArg

public static boolean hasRepeatableArg(GeometryFunction fun)

repeatableArgIndex

public static int repeatableArgIndex(GeometryFunction fun)