jfun.yan.xml
Class DelegatingNutsFunction

java.lang.Object
  jfun.yan.xml.DelegatingNutsFunction

All Implemented Interfaces:

java.io.Serializable, LocationAware, NutsFunction

Direct Known Subclasses:

SynchronizedNutsFunction

public class DelegatingNutsFunction
extends java.lang.Object
implements NutsFunction

This is the super class for conveniently delegating to another NutsFunction object. This class does nothing but forwarding the call to the delegate target.

Subclass can override any method to provide custom behavior.

Author:

Ben Yu Nov 27, 2005 11:45:45 AM

See Also:

Serialized Form

Constructor Summary

DelegatingNutsFunction(NutsFunction fun)
Create a DelegatingNutsFunction object.

Method Summary

java.lang.Object	call(java.lang.Object[] args) Call the function with arguments.
boolean	equals(java.lang.Object obj)
NutsFunction	getDelegateTarget() To get the delegate target.
Location	getLocation()
java.lang.String	getName() Get the function name.
int	getParameterCount() Get the number of parameters expected.
java.lang.String[]	getParameterNames() Get the names of the parameters.
java.lang.Class	getReturnType() Get the return type of the function.
int	hashCode()
java.lang.String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

DelegatingNutsFunction

public DelegatingNutsFunction(NutsFunction fun)

Create a DelegatingNutsFunction object.

Parameters:

fun - the delegate target.

Method Detail

getParameterNames

public java.lang.String[] getParameterNames()

Description copied from interface: NutsFunction

Get the names of the parameters.

Specified by:

getParameterNames in interface NutsFunction

getDelegateTarget

public NutsFunction getDelegateTarget()

To get the delegate target.

call

public java.lang.Object call(java.lang.Object[] args)

Description copied from interface: NutsFunction

Call the function with arguments.

Specified by:

call in interface NutsFunction

Parameters:

args - the arguments.

Returns:

the return value.

getLocation

public Location getLocation()

Specified by:

getLocation in interface LocationAware

getName

public java.lang.String getName()

Description copied from interface: NutsFunction

Get the function name.

Specified by:

getName in interface NutsFunction

Returns:

the name.

getParameterCount

public int getParameterCount()

Description copied from interface: NutsFunction

Get the number of parameters expected.

Specified by:

getParameterCount in interface NutsFunction

getReturnType

public java.lang.Class getReturnType()

Description copied from interface: NutsFunction

Get the return type of the function. Null is returned if unknown.

Specified by:

getReturnType in interface NutsFunction

equals

public boolean equals(java.lang.Object obj)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object

toString

public java.lang.String toString()

Overrides:

toString in class java.lang.Object