/*
* IzPack - Copyright 2001-2008 Julien Ponge, All Rights Reserved.
*
* http://izpack.org/
* http://izpack.codehaus.org/
*
* Copyright 2003 Tino Schwarze
*
* Licensed under the Apache License, Version 2.0 (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.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package com.izforge.izpack.util;
import com.izforge.izpack.panels.ProcessingClient;
import com.izforge.izpack.panels.Validator;
/**
* A validator to enforce non-empty fields.
* <p/>
* This validator can be used for rule input fields in the UserInputPanel to make sure that the user
* entered something.
*
* @author tisc
*/
public class NotEmptyValidator implements Validator
{
public boolean validate(ProcessingClient client)
{
int numfields = client.getNumFields();
for (int i = 0; i < numfields; i++)
{
String value = client.getFieldContents(i);
if ((value == null) || (value.length() == 0))
{
return false;
}
}
return true;
}
}