util.java

来自「FuncPlotter is a combined Java applicati」· Java 代码 · 共 91 行

/*====================================================================*\

Util.java

Utility methods class.

------------------------------------------------------------------------

This file is part of FuncPlotter, a combined Java application and applet
for plotting explicit functions in one variable.
Copyright 2005-2007 Andy Morgan-Richards.

FuncPlotter is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the
Free Software Foundation, either version 3 of the License, or (at your
option) any later version.

This program is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
General Public License for more details.

You should have received a copy of the GNU General Public License along
with this program.  If not, see <http://www.gnu.org/licenses/>.

\*====================================================================*/


// PACKAGE


package gui;

//----------------------------------------------------------------------


// IMPORTS


import java.lang.reflect.Method;

//----------------------------------------------------------------------


// UTILITY METHODS CLASS


class Util
{

////////////////////////////////////////////////////////////////////////
//  Constructors
////////////////////////////////////////////////////////////////////////

    private Util( )
    {
    }

    //------------------------------------------------------------------

////////////////////////////////////////////////////////////////////////
//  Class methods
////////////////////////////////////////////////////////////////////////

    public static Method getDeclaredMethod( Class<?> cls,
                                            String   methodName,
                                            boolean  hasParam )
        throws NoSuchMethodException
    {
        while ( true )
        {
            try
            {
                return ( hasParam ? cls.getDeclaredMethod( methodName, String.class )
                                  : cls.getDeclaredMethod( methodName ) );
            }
            catch ( NoSuchMethodException e )
            {
                cls = cls.getSuperclass( );
                if ( cls == null )
                    throw e;
            }
        }
    }

    //------------------------------------------------------------------

}

//----------------------------------------------------------------------