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/*************************************************************************
*
* $RCSfile: NumericValidator.java,v $
*
* $Revision: 1.2 $
*
* last change: $Author: rt $ $Date: 2004-04-02 10:47:40 $
*
* The Contents of this file are made available subject to the terms of
* either of the following licenses
*
* - GNU Lesser General Public License Version 2.1
* - Sun Industry Standards Source License Version 1.1
*
* Sun Microsystems Inc., October, 2000
*
* GNU Lesser General Public License Version 2.1
* =============================================
* Copyright 2000 by Sun Microsystems, Inc.
* 901 San Antonio Road, Palo Alto, CA 94303, USA
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License version 2.1, as published by the Free Software Foundation.
*
* This library 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
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston,
* MA 02111-1307 USA
*
*
* Sun Industry Standards Source License Version 1.1
* =================================================
* The contents of this file are subject to the Sun Industry Standards
* Source License Version 1.1 (the "License"); You may not use this file
* except in compliance with the License. You may obtain a copy of the
* License at http://www.openoffice.org/license.html.
*
* Software provided under this License is provided on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING,
* WITHOUT LIMITATION, WARRANTIES THAT THE SOFTWARE IS FREE OF DEFECTS,
* MERCHANTABLE, FIT FOR A PARTICULAR PURPOSE, OR NON-INFRINGING.
* See the License for the specific provisions governing your rights and
* obligations concerning the Software.
*
* The Initial Developer of the Original Code is: Sun Microsystems, Inc.
*
* Copyright: 2000 by Sun Microsystems, Inc.
*
* All Rights Reserved.
*
* Contributor(s): _______________________________________
*
*
************************************************************************/
package integration.forms;
import com.sun.star.form.binding.*;
/**
*
* @author fs@openoffice.org
*/
public class NumericValidator extends integration.forms.ControlValidator
{
/** Creates a new instance of NumericValidator */
public NumericValidator( )
{
}
public String explainInvalid( Object Value )
{
try
{
double value = ((Double)Value).doubleValue();
if ( Double.compare( Double.NaN, value ) == 0 )
return "This is NotANumber";
if ( !isProperRange( value ) )
return "The value must be between 0 and 100";
if ( !isProperDigitCount( value ) )
return "The value must have at most one decimal digit";
}
catch( java.lang.Exception e )
{
return "This is no valid number";
}
return "";
}
public boolean isValid( Object Value )
{
try
{
double value = ((Double)Value).doubleValue();
if ( Double.compare( Double.NaN, value ) == 0 )
return false;
if ( !isProperRange( value ) )
return false;
if ( !isProperDigitCount( value ) )
return false;
return true;
}
catch( java.lang.Exception e )
{
}
return false;
}
private boolean isProperRange( double value)
{
return ( value >= 0 ) && ( value <= 100 );
}
private boolean isProperDigitCount( double value)
{
return ( java.lang.Math.floor( value * 10 ) == value * 10 );
}
}
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