1 files changed, 96 insertions, 2 deletions

diff --git a/libjava/java/text/DateFormat.java b/libjava/java/text/DateFormat.java
index 76bf535577a..bf4c2c8d6e0 100644
--- a/libjava/java/text/DateFormat.java
+++ b/libjava/java/text/DateFormat.java
@@ -1,5 +1,5 @@
 /* DateFormat.java -- Class for formatting/parsing date/times
-   Copyright (C) 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
+   Copyright (C) 1998, 1999, 2000, 2001, 2003 Free Software Foundation, Inc.
 
 This file is part of GNU Classpath.
 
@@ -39,6 +39,7 @@ exception statement from your version. */
 package java.text;
 
 import java.util.*;
+import java.io.InvalidObjectException;
 
 /**
  * @author Per Bothner <bothner@cygnus.com>
@@ -86,6 +87,97 @@ public abstract class DateFormat extends Format implements Cloneable
   public static final int HOUR0_FIELD = 16;
   public static final int TIMEZONE_FIELD = 17;
 
+
+  public static class Field extends Format.Field
+  {
+    static final long serialVersionUID = 7441350119349544720L;
+    
+    private int calendarField;
+
+    public static final DateFormat.Field ERA
+	= new Field("era", Calendar.ERA);
+    public static final DateFormat.Field YEAR
+	= new Field("year", Calendar.YEAR);
+    public static final DateFormat.Field MONTH
+	= new Field("month", Calendar.MONTH);
+    public static final DateFormat.Field DAY_OF_MONTH
+	= new Field("day of month", Calendar.DAY_OF_MONTH);
+    public static final DateFormat.Field HOUR_OF_DAY1
+	= new Field("hour of day 1", Calendar.HOUR_OF_DAY);
+    public static final DateFormat.Field HOUR_OF_DAY0
+	= new Field("hour of day 0", Calendar.HOUR_OF_DAY);
+    public static final DateFormat.Field MINUTE
+	= new Field("minute", Calendar.MINUTE);
+    public static final DateFormat.Field SECOND
+	= new Field("second", Calendar.SECOND);
+    public static final DateFormat.Field MILLISECOND
+	= new Field("millisecond", Calendar.MILLISECOND);
+    public static final DateFormat.Field DAY_OF_WEEK
+	= new Field("day of week", Calendar.DAY_OF_WEEK);
+    public static final DateFormat.Field DAY_OF_YEAR
+	= new Field("day of year", Calendar.DAY_OF_YEAR);
+    public static final DateFormat.Field DAY_OF_WEEK_IN_MONTH
+	= new Field("day of week in month", Calendar.DAY_OF_WEEK_IN_MONTH);
+    public static final DateFormat.Field WEEK_OF_YEAR
+	= new Field("week of year", Calendar.WEEK_OF_YEAR);
+    public static final DateFormat.Field WEEK_OF_MONTH
+	= new Field("week of month", Calendar.WEEK_OF_MONTH);
+    public static final DateFormat.Field AM_PM
+	= new Field("am/pm", Calendar.AM_PM);
+    public static final DateFormat.Field HOUR1
+	= new Field("hour1", Calendar.HOUR);
+    public static final DateFormat.Field HOUR0
+	= new Field("hour0", Calendar.HOUR);
+    public static final DateFormat.Field TIME_ZONE
+	= new Field("timezone", Calendar.ZONE_OFFSET);
+ 
+    public static final DateFormat.Field[] allFields =
+    {
+      ERA, YEAR, MONTH, DAY_OF_MONTH, HOUR_OF_DAY1,
+      HOUR_OF_DAY0, MINUTE, SECOND, MILLISECOND,
+      DAY_OF_WEEK, DAY_OF_YEAR, DAY_OF_WEEK_IN_MONTH,
+      WEEK_OF_YEAR, WEEK_OF_MONTH, AM_PM, HOUR1, HOUR0,
+      TIME_ZONE
+    };
+
+    // For deserialization
+    private Field()
+    {
+      super("");
+    }
+
+    protected Field(String name, int calendarField)
+    {
+      super(name);
+      this.calendarField = calendarField;
+    }
+    
+    public int getCalendarField()
+    {
+      return calendarField;
+    }
+
+    public static Field ofCalendarField(int calendarField)
+    {
+      if (calendarField >= allFields.length || calendarField < 0)
+	throw new IllegalArgumentException("no such calendar field ("
+					   + calendarField + ")");
+      
+      return allFields[calendarField];
+    }
+    
+    protected Object readResolve() throws InvalidObjectException
+    {
+      String s = getName();
+
+      for (int i=0;i<allFields.length;i++)
+	if (s.equals(allFields[i].getName()))
+	  return allFields[i];
+      
+      throw new InvalidObjectException("no such DateFormat field called " + s);
+    }
+  }
+
   /**
    * This method initializes a new instance of <code>DateFormat</code>.
    */
@@ -152,7 +244,9 @@ public abstract class DateFormat extends Format implements Cloneable
     if (obj instanceof Number)
       obj = new Date(((Number) obj).longValue());
     else if (! (obj instanceof Date))
-      throw new IllegalArgumentException ("Cannot format given Object as a Date");
+      throw new IllegalArgumentException
+	("Cannot format given Object as a Date");
+
     return format ((Date) obj, buf, pos);
   }