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Java Enterprise Edition (EE)

FunctionMapper


javax.el
Class FunctionMapper

java.lang.Object
  javax.el.FunctionMapper
public abstract class FunctionMapper
extends java.lang.Object

The interface to a map between EL function names and methods.

A FunctionMapper maps ${prefix:name()} style functions to a static method that can execute that function.

Since:
JSP 2.1

Constructor Summary
FunctionMapper()
           
 
Method Summary
abstract  java.lang.reflect.Method resolveFunction(java.lang.String prefix, java.lang.String localName)
          Resolves the specified prefix and local name into a java.lang.Method.
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

FunctionMapper

public FunctionMapper()
Method Detail

resolveFunction

public abstract java.lang.reflect.Method resolveFunction(java.lang.String prefix,
                                                         java.lang.String localName)
Resolves the specified prefix and local name into a java.lang.Method.

Returns null if no function could be found that matches the given prefix and local name.

Parameters:
prefix - the prefix of the function, or "" if no prefix. For example, "fn" in ${fn:method()}, or "" in ${method()}.
localName - the short name of the function. For example, "method" in ${fn:method()}.
Returns:
the static method to invoke, or null if no match was found.


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