package net.sourceforge.squirrel_sql.client.session.mainpanel.overview.datascale;
import net.sourceforge.squirrel_sql.fw.datasetviewer.ColumnDisplayDefinition;
import java.util.Comparator;
import java.util.List;
public class IntegerIndexedColumn extends IndexedColumn
{
private IntegerRange _intRange = new IntegerRange();
public IntegerIndexedColumn(List<Object[]> rows, int colIx, ColumnDisplayDefinition colDef)
{
super(rows, colIx, colDef);
Comparator comparator = new Comparator<Object>()
{
@Override
public int compare(Object ix1, Object ix2)
{
if( ix1 instanceof NoIx && ix2 instanceof NoIx)
{
return compareInteger(((NoIx) ix1).get(), ((NoIx) ix2).get());
}
else if(ix1 instanceof NoIx)
{
return compareInteger(((NoIx) ix1).get(), getRow((Integer) ix2));
}
else if(ix2 instanceof NoIx)
{
return compareInteger(getRow((Integer) ix1), ((NoIx) ix2).get());
}
else
{
return compareInteger(getRow((Integer) ix1), getRow((Integer) ix2));
}
}
};
_intRange.beginInit();
sortIx(comparator);
_intRange.endInit();
}
private int compareInteger(Object o1, Object o2)
{
Integer i1 = null;
if (null != o1)
{
i1 = ((Number)o1).intValue();
}
Integer i2 = null;
if (null != o2)
{
i2 = ((Number)o2).intValue();
}
_intRange.init(i1);
_intRange.init(i2);
if(i1 == null && i2 != null)
{
return -1;
}
else if(i1 != null && i2 == null)
{
return 1;
}
else if(i1 == null && i2 == null)
{
return 0;
}
return i1.compareTo(i2);
}
@Override
public Calculator getCalculator()
{
return new Calculator()
{
@Override
public Object getMid(Object min, Object max)
{
return onGetMid(min, max);
}
};
}
private Object onGetMid(Object min, Object max)
{
Integer intMin;
if(null == min)
{
intMin = _intRange.getMin() - 1;
}
else
{
intMin = ((Number)min).intValue();
}
Integer intMax;
if(null == max)
{
intMax = _intRange.getMin() - 1;
}
else
{
intMax = ((Number)max).intValue();
}
return intMin + ((intMax - intMin) / 2);
}
private static class IntegerRange
{
private int _max = 0;
private int _min = 0;
private boolean _initializing;
private boolean _isInit;
public void init(Integer i)
{
if(false == _initializing)
{
return;
}
if(null == i)
{
return;
}
if(false == _isInit)
{
_min = i;
_max = i;
_isInit = true;
}
_min = Math.min(_min, i);
_max = Math.max(_max, i);
}
public int getMin()
{
return _min;
}
void beginInit()
{
_initializing = true;
}
void endInit()
{
_initializing = false;
}
}
}