Introspector (Commons JEXL 1.1 API)

Class Introspector

public class Introspector extends IntrospectorBase

This basic function of this class is to return a Method object for a particular class given the name of a method and the parameters to the method in the form of an Object[] The first time the Introspector sees a class it creates a class method map for the class in question. Basically the class method map is a Hashtable where Method objects are keyed by a concatenation of the method name and the names of classes that make up the parameters. For example, a method with the following signature: public void method(String a, StringBuffer b) would be mapped by the key: "method" + "java.lang.String" + "java.lang.StringBuffer" This mapping is performed for all the methods in a class and stored for

Since: 1.0

Version: $Id: Introspector.java 398171 2006-04-29 14:57:29Z dion $

Field Summary
static String	CACHEDUMP_MSG define a public string so that it can be looked for if interested.

Field Summary

static String

CACHEDUMP_MSG

define a public string so that it can be looked for if interested.

Constructor Summary
	Introspector(Log logger) Recieves our RuntimeServices object.

Constructor Summary

Introspector(Log logger)

Recieves our RuntimeServices object.

Method Summary
protected void	clearCache() Clears the classmap and classname caches, and logs that we did so.
Method	getMethod(Class c, String name, Object[] params) Gets the method defined by `name` and `params` for the Class `c`.

Method Summary

protected void

clearCache()

Clears the classmap and classname caches, and logs that we did so.

Method

getMethod(Class c, String name, Object[] params)

Gets the method defined by name and params for the Class c.

Method Detail

protected void clearCache()

Clears the classmap and classname caches, and logs that we did so.

public Method getMethod(Class c, String name, Object[] params)

Gets the method defined by name and params for the Class c.

Parameters: c Class in which the method search is taking place name Name of the method being searched for params An array of Objects (not Classes) that describe the the parameters

Returns: The desired Method object.

Throws: Exception if the superclass does.

Class Introspector

Field Detail

CACHEDUMP_MSG

Constructor Detail

Introspector

Method Detail

clearCache

getMethod