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Java Source Code / Java Documentation » Sevlet Container » tomcat jasper2 » org.apache.jasper.runtime 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   org.apache.jasper.runtime.ProtectedFunctionMapper

ProtectedFunctionMapper
final public class ProtectedFunctionMapper implements FunctionMapper(Code)
Maps EL functions to their Java method counterparts. Keeps the actual Method objects protected so that JSP pages can't indirectly do reflection.
author:
   Mark Roth
author:
   Kin-man Chung




Method Summary
public static  ProtectedFunctionMappergetInstance()
     Generated Servlet and Tag Handler implementations call this method to retrieve an instance of the ProtectedFunctionMapper.
public static  ProtectedFunctionMappergetMapForFunction(String fnQName, Class c, String methodName, Class[] args)
     Creates an instance for this class, and stores the Method for the given EL function prefix and name.
public  voidmapFunction(String fnQName, Class c, String methodName, Class[] args)
     Stores a mapping from the given EL function prefix and name to the given Java method.
public  MethodresolveFunction(String prefix, String localName)
     Resolves the specified local name and prefix into a Java.lang.Method. Returns null if the prefix and local name are not found.
Parameters:
  prefix - the prefix of the function
Parameters:
  localName - the short name of the function the result of the method mapping.



Method Detail
getInstance
public static ProtectedFunctionMapper getInstance()(Code)
Generated Servlet and Tag Handler implementations call this method to retrieve an instance of the ProtectedFunctionMapper. This is necessary since generated code does not have access to create instances of classes in this package. A new protected function mapper.



getMapForFunction
public static ProtectedFunctionMapper getMapForFunction(String fnQName, Class c, String methodName, Class[] args)(Code)
Creates an instance for this class, and stores the Method for the given EL function prefix and name. This method is used for the case when there is only one function in the EL expression.
Parameters:
  fnQName - The EL function qualified name (including prefix)
Parameters:
  c - The class containing the Java method
Parameters:
  methodName - The name of the Java method
Parameters:
  args - The arguments of the Java method
throws:
  RuntimeException - if no method with the given signaturecould be found.



mapFunction
public void mapFunction(String fnQName, Class c, String methodName, Class[] args)(Code)
Stores a mapping from the given EL function prefix and name to the given Java method.
Parameters:
  fnQName - The EL function qualified name (including prefix)
Parameters:
  c - The class containing the Java method
Parameters:
  methodName - The name of the Java method
Parameters:
  args - The arguments of the Java method
throws:
  RuntimeException - if no method with the given signaturecould be found.



resolveFunction
public Method resolveFunction(String prefix, String localName)(Code)
Resolves the specified local name and prefix into a Java.lang.Method. Returns null if the prefix and local name are not found.
Parameters:
  prefix - the prefix of the function
Parameters:
  localName - the short name of the function the result of the method mapping. Null means no entry found.



Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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