org.apache.bsf.util
Class MethodUtils
java.lang.Object
org.apache.bsf.util.MethodUtils
public class MethodUtils
- extends Object
This file is a collection of reflection utilities for dealing with
methods and constructors.
- Author:
- Sanjiva Weerawarana, Joseph Kesselman
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
MethodUtils
public MethodUtils()
getConstructor
public static Constructor getConstructor(Class targetClass,
Class[] argTypes)
throws SecurityException,
NoSuchMethodException
- Class.getConstructor() finds only the entry point (if any)
_exactly_ matching the specified argument types. Our implmentation
can decide between several imperfect matches, using the same
search algorithm as the Java compiler.
Note that all constructors are static by definition, so
isStaticReference is true.
- Throws:
NoSuchMethodException
- if constructor not found.
SecurityException
getMethod
public static Method getMethod(Class target,
String methodName,
Class[] argTypes,
boolean isStaticReference)
throws SecurityException,
NoSuchMethodException
- Throws:
SecurityException
NoSuchMethodException
getMethod
public static Method getMethod(Object target,
String methodName,
Class[] argTypes)
throws SecurityException,
NoSuchMethodException
- Class.getMethod() finds only the entry point (if any) _exactly_
matching the specified argument types. Our implmentation can
decide between several imperfect matches, using the same search
algorithm as the Java compiler.
This version emulates the compiler behavior by allowing lookup to
be performed against either a class or an instance -- classname.foo()
must be a static method call, instance.foo() can invoke either static
or instance methods.
- Parameters:
target
- object on which call is to be mademethodName
- name of method I'm lookin' forargTypes
- array of argument types of method
- Returns:
- the desired method
- Throws:
SecurityException
- if security violation
NoSuchMethodException
- if no such method