001 package edu.nrao.sss.model.source; 002 003 import java.net.URL; 004 005 import javax.xml.bind.annotation.XmlElement; 006 007 /** 008 * A source brightness whose description is based on a well known file format. 009 * <p> 010 * <b>Version Info:</b> 011 * <table style="margin-left:2em"> 012 * <tr><td>$Revision: 743 $</td> 013 * <tr><td>$Date: 2007-06-20 16:53:07 -0600 (Wed, 20 Jun 2007) $</td> 014 * <tr><td>$Author: dharland $</td> 015 * </table></p> 016 * 017 * @author David M. Harland 018 * @since 2006-04-04 019 */ 020 public abstract class FileBasedBrightness 021 extends SourceBrightness 022 { 023 /** Helps create a new instance. */ 024 FileBasedBrightness() 025 { 026 super(); 027 } 028 029 /** 030 * Sets the file that describes this source brightness. 031 * 032 * @param fileUrl the URL of the file that describes this 033 * source brightness. 034 * If this parameter is <i>null</i>, 035 * a phony non-null URL will be used. 036 */ 037 @XmlElement 038 public void setBrightnessFile(URL fileUrl) 039 { 040 brightnessFile = (fileUrl == null) ? DEFAULT_URL : fileUrl; 041 } 042 043 //This method is here only for JAXB purposes. If it were not here, JAXB 044 //would complain that it found setBrightnessFile, but not getBrightnessFile, 045 //even though getBrightnessFile is present in the parent class. 046 @Override 047 public URL getBrightnessFile() 048 { 049 return super.getBrightnessFile(); 050 } 051 }