org.apache.commons.jexl.util.introspection
Class MethodMap
java.lang.Object
|
+--org.apache.commons.jexl.util.introspection.MethodMap
- public class MethodMap
- extends Object
- Since:
- 1.0
- Version:
- $Id: MethodMap.java 398495 2006-05-01 01:33:43Z dion $
Inner Class Summary |
static class |
MethodMap.AmbiguousException
simple distinguishable exception, used when we run across ambiguous
overloading. |
Methods inherited from class java.lang.Object |
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
methodByNameMap
protected Map methodByNameMap
- Keep track of all methods with the same name.
MethodMap
public MethodMap()
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.
- Parameters:
method
- the method.
get
public List get(String key)
- Return a list of methods with the same name.
- Parameters:
key
- The method name.- Returns:
- List list of methods
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 methodargs
- 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
Copyright © 2003-2006 The Apache Software Foundation. All Rights Reserved.