quick.dbtable
Interface Comparator

public interface Comparator

When you want to do a special comparison during sorting, this class can be used. For example if you want do case insensitive sort, then during sorting, this compare method will be called and you have to implement the logic for case insensitive comparison in the compare method in this class

 A sample class to handle norwegian characters.

 class NorwegianComparator implements quick.dbtable.Comparator
 {
   String Norwegian = "< a,A< b,B< c,C< d,D< e,E< f,F< g,G< h,H< i,I< j,J" +
                 "< k,K< l,L< m,M< n,N< o,O< p,P< q,Q< r,R< s,S< t,T" +
                 "< u,U< v,V< w,W< x,X< y,Y< z,Z" +
                 "< å=a?,Å=A?" +
                 ";aa,AA< æ,Æ< ø,Ø";
   java.text.RuleBasedCollator myNorwegian;

   public NorwegianComparator()
   {
     try{
      myNorwegian = new java.text.RuleBasedCollator(Norwegian);
     }
     catch(Exception ex)
     {
       ex.printStackTrace();
     }
   }

   public int compare(int column, java.lang.Object currentData, java.lang.Object nextData)
   {
     //if column == column which has norwegian characters, then
         return myNorwegian.compare(currentData, nextData);
     //else
         return quick.dbtable.Comparator.DEFAULT_SORT;
   }
 }


 NorwegianComparator mc = new NorwegianComparator();
 dbTable.setComparator(mc);

  

Field Summary

static int

DEFAULT_SORT

Method Summary

int	compare(int column, java.lang.Object currentData, java.lang.Object nextData) compares cell data in a given column

Field Detail

DEFAULT_SORT

public static final int DEFAULT_SORT

See Also:

Constant Field Values

Method Detail

compare

public int compare(int column,
                   java.lang.Object currentData,
                   java.lang.Object nextData)

compares cell data in a given column

Parameters:

column -

currentData -

nextData -

Returns:

DBTable.EQUAL if both objects are equal
         DBTable.LESS if nextData is less than currentData
         DBTable.GREATER if nextData is greater than currentData
         DBTable.DEFAULT_SORT  if you haven't done the comparison & if you wnat quicktable to do the comparison, return this.
                              This is mainly used, if you want to handle the comparison for some columns and
                              for all the other coolumn, you want quicktable to do its default comparison