| java.lang.Object
 org.apache.velocity.util.introspection.IntrospectorBase
All known Subclasses: org.apache.velocity.util.introspection.Introspector,
| IntrospectorBase | | abstract public class IntrospectorBase implements IntrospectorCacheListener(Code) | | Lookup a a Method object for a particular class given the name of a method
and its parameters.
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.
author:
Jason van Zyl
author:
Bob McWhirter
author:
Attila Szegedi
author:
Paulo Gaspar
author:
Henning P. Schmiedehausen
version:
$Id: IntrospectorBase.java 477003 2006-11-20 01:14:22Z henning $ |
| Field Summary | |
| final protected Log | log
|
| log | | final protected Log log(Code) | | Class logger
|
| IntrospectorBase | | protected IntrospectorBase(Log log)(Code) | | C'tor.
|
| clearCache | | protected void clearCache()(Code) | | Clears the internal cache.
|
| createClassMap | | protected ClassMap createClassMap(Class c)(Code) | | Creates a class map for specific class and registers it in the
cache. Also adds the qualified name to the name->class map
for later Classloader change detection.
Parameters:
c - The class for which the class map gets generated. A ClassMap object. |
| getIntrospectorCache | | protected IntrospectorCache getIntrospectorCache()(Code) | | Return the internal IntrospectorCache object.
The internal IntrospectorCache object. |
| lookupClassMap | | protected ClassMap lookupClassMap(Class c)(Code) | | Lookup a given Class object in the cache. If it does not exist,
check whether this is due to a class change and purge the caches
eventually.
Parameters:
c - The class to look up. A ClassMap object or null if it does not exist in the cache. |
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