Content.java

/*
** Module   : Content.java
** Abstract : Progress 4GL INI flie content abstract class.
**
** Copyright (c) 2013-2017, Golden Code Development Corporation.

**
** -#- -I- --Date-- ---------------------------------Description----------------------------------
** 001 EVL 20130701 Created initial version
*/
/*
** This program is free software: you can redistribute it and/or modify
** it under the terms of the GNU Affero 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 Affero General Public License for more details.
**
** You may find a copy of the GNU Affero GPL version 3 at the following
** location: https://www.gnu.org/licenses/agpl-3.0.en.html
** 
** Additional terms under GNU Affero GPL version 3 section 7:
** 
**   Under Section 7 of the GNU Affero GPL version 3, the following additional
**   terms apply to the works covered under the License.  These additional terms
**   are non-permissive additional terms allowed under Section 7 of the GNU
**   Affero GPL version 3 and may not be removed by you.
** 
**   0. Attribution Requirement.
** 
**     You must preserve all legal notices or author attributions in the covered
**     work or Appropriate Legal Notices displayed by works containing the covered
**     work.  You may not remove from the covered work any author or developer
**     credit already included within the covered work.
** 
**   1. No License To Use Trademarks.
** 
**     This license does not grant any license or rights to use the trademarks
**     Golden Code, FWD, any Golden Code or FWD logo, or any other trademarks
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*/

package com.goldencode.p2j.util;

import java.io.*;

/**
 * Abstract class implementing the INI text file content. Can be either line to ignore in the
 * case of comment or empty line or key=value section with possible comments or empty lines.
 *
 * @author    EVL
 */
public abstract class Content
{
   /**
    * Constructs an instance of the simple line or section in INI file.
    */
   public Content()
   {
   }
   
   /**
    * Writes the content to the file via Writer object provided.
    * 
    * @param pw 
    *        The writer will be used to save content to the file.
    */
   public abstract void write(PrintWriter pw);
   
   /**
    * Checks if the content is empty or not.
    * 
    * @return <code>true</code> in case of not emptry, <code>false</code> otherwise.
    */
   public abstract boolean notEmpty();
}