org.codehaus.plexus.util.introspection

Class MethodMap


public class MethodMap
extends java.lang.Object

Version:
$Id: MethodMap.java 5958 2007-02-28 10:29:55Z olamy $
Authors:
Jason van Zyl
Bob McWhirter
Christoph Reck
Geir Magnusson Jr.
Attila Szegedi

Nested Class Summary

static class
MethodMap.AmbiguousException
simple distinguishable exception, used when we run across ambiguous overloading

Method Summary

void
add(Method method)
Add a method to a list of methods by name.
Method
find(String methodName, Object[] args)
Find a method.
List
get(String key)
Return a list of methods with the same name.

Method Details

add

public void add(Method method)
Add a method to a list of methods by name. For a particular class we are keeping track of all the methods with the same name.

find

public Method find(String methodName,
                   Object[] args)
            throws MethodMap.AmbiguousException
Find a method. Attempts to find the most specific applicable method using the algorithm described in the JLS section 15.12.2 (with the exception that it can't distinguish a primitive type argument from an object type argument, since in reflection primitive type arguments are represented by their object counterparts, so for an argument of type (say) java.lang.Integer, it will not be able to decide between a method that takes int and a method that takes java.lang.Integer as a parameter.

This turns out to be a relatively rare case where this is needed - however, functionality like this is needed.

Parameters:
methodName - name of method
args - the actual arguments with which the method is called
Returns:
the most specific applicable method, or null if no method is applicable.
Throws:
MethodMap.AmbiguousException - if there is more than one maximally specific applicable method

get

public List get(String key)
Return a list of methods with the same name.
Parameters:
Returns:
List list of methods