Package org.locationtech.jtstest.geomop

Class GeometryMethodOperation

java.lang.Object

org.locationtech.jtstest.geomop.GeometryMethodOperation

All Implemented Interfaces:

GeometryOperation

public class GeometryMethodOperation
extends Object
implements GeometryOperation

Invokes a named operation on a set of arguments, the first of which is a Geometry. This class provides operations which are the methods defined on the Geometry class. Other GeometryOperation classes can delegate to instances of this class to run standard Geometry methods.

Version:

1.7

Field Summary

Fields

Modifier and Type	Field	Description
private Object[]	convArg
private Method[]	geometryMethods

Constructor Summary

Constructors

Constructor	Description
GeometryMethodOperation()

Method Summary

Modifier and Type	Method	Description
private boolean	convertArg(Class destClass, Object srcValue, Object[] convArg)
private boolean	convertArgFromString(Class destClass, String srcStr, Object[] convArg)
private boolean	convertArgs(Class[] parameterTypes, Object[] args, Object[] actualArgs)
private Method	getGeometryMethod(String opName, Object[] args, Object[] actualArgs)
static Class	getGeometryReturnType(String functionName)
Class	getReturnType(String opName)	Gets the class of the return type of the given operation.
Result	invoke(String opName, Geometry geometry, Object[] args)	Invokes an operation on a Geometry.
private Result	invokeMethod(Method method, Geometry geometry, Object[] args)
static boolean	isBooleanFunction(String name)
static boolean	isDoubleFunction(String name)
static boolean	isGeometryFunction(String name)
static boolean	isIntegerFunction(String name)
private static int	nonNullItemCount(Object[] obj)

Methods inherited from class java.lang.Object

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

Field Details

geometryMethods

private Method[] geometryMethods

convArg

private Object[] convArg

Constructor Details

GeometryMethodOperation

public GeometryMethodOperation()

Method Details

isBooleanFunction

public static boolean isBooleanFunction(String name)

isIntegerFunction

public static boolean isIntegerFunction(String name)

isDoubleFunction

public static boolean isDoubleFunction(String name)

isGeometryFunction

public static boolean isGeometryFunction(String name)

getGeometryReturnType

public static Class getGeometryReturnType(String functionName)

getReturnType

public Class getReturnType(String opName)

Description copied from interface: GeometryOperation

Gets the class of the return type of the given operation.

Specified by:

getReturnType in interface GeometryOperation

Parameters:

opName - the name of the operation

Returns:

the class of the return type of the specified operation

invoke

public Result invoke(String opName,
 Geometry geometry,
 Object[] args)
              throws Exception

Description copied from interface: GeometryOperation

Invokes an operation on a Geometry.

Specified by:

invoke in interface GeometryOperation

Parameters:

opName - name of the operation

geometry - the geometry to process

args - the arguments to the operation (which may be typed as Strings)

Returns:

the result of the operation

Throws:

Exception - if some error was encountered trying to find or process the operation

getGeometryMethod

private Method getGeometryMethod(String opName,
 Object[] args,
 Object[] actualArgs)

nonNullItemCount

private static int nonNullItemCount(Object[] obj)

convertArgs

private boolean convertArgs(Class[] parameterTypes,
 Object[] args,
 Object[] actualArgs)

convertArg

private boolean convertArg(Class destClass,
 Object srcValue,
 Object[] convArg)

convertArgFromString

private boolean convertArgFromString(Class destClass,
 String srcStr,
 Object[] convArg)

invokeMethod

private Result invokeMethod(Method method,
 Geometry geometry,
 Object[] args)
                     throws Exception

Throws:

Exception