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java.lang.Objectedu.internet2.middleware.grouperClientExt.org.apache.commons.jexl.util.introspection.IntrospectorBase
public class 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 Hastable 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
| Field Summary | |
|---|---|
protected Set |
cachedClassNames
Holds the qualified class names for the classes we hold in the classMethodMaps hash. |
protected Map |
classMethodMaps
Holds the method maps for the classes we know about, keyed by Class object. |
| Constructor Summary | |
|---|---|
IntrospectorBase()
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| Method Summary | |
|---|---|
protected void |
clearCache()
Clears the classmap and classname caches. |
protected ClassMap |
createClassMap(Class c)
Creates a class map for specific class and registers it in the cache. |
Method |
getMethod(Class c,
String name,
Object[] params)
Gets the method defined by name and params
for the Class c. |
| Methods inherited from class java.lang.Object |
|---|
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait |
| Field Detail |
|---|
protected Map classMethodMaps
protected Set cachedClassNames
| Constructor Detail |
|---|
public IntrospectorBase()
| Method Detail |
|---|
public Method getMethod(Class c,
String name,
Object[] params)
throws Exception
name and params
for the Class c.
c - Class in which the method search is taking placename - Name of the method being searched forparams - An array of Objects (not Classes) that describe the the
parameters
Exception - on any logical error.protected ClassMap createClassMap(Class c)
c - class.
ClassMapprotected void clearCache()
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