1 package com.daffodilwoods.daffodildb.server.datasystem.mergesystem; 2 3 import com.daffodilwoods.daffodildb.utils.comparator.SuperComparator; 4 import com.daffodilwoods.daffodildb.utils.GetByteComparator; 5 import com.daffodilwoods.daffodildb.utils._DComparator; 6 import com.daffodilwoods.database.resource.DException; 7 8 public class KeyComparator extends SuperComparator{ 9 10 SuperComparator comparator = GetByteComparator.sameComparator; 11 12 public KeyComparator(){ 13 } 14 15 public int compare(Object first,Object second) throws DException{ 16 Object [] o1 = (Object [])first; 17 Object [] o2 = (Object [])second; 18 int compare = 0; 19 for( int i = 0,length1 = o1.length-1,length2 = o2.length-1; i < 3 && compare == 0; i++,length1--,length2--){ 20 compare = ((_DComparator)o1[length1]).getNull() && ((_DComparator)o2[length2]).getNull() ? 0 : comparator.compare(o1[length1],o2[length2]); 21 } 22 return compare; 23 } 24 } 25 26 | Popular Tags |