/**Escribede un objeto de la clase CIndice*/
public void EscribeIndicePrimario(CIndice indPri)
{
BinaryWriter bw;
bw = getBw();
bw.BaseStream.Seek(indPri.getDirInd(), SeekOrigin.Begin);
bw.Write(indPri.getTipoInd());
bw.Write(indPri.getTamIndPri());
bw.Write(indPri.getIndPrim());
bw.Write(indPri.getSigInd());
bw.Write(indPri.getCabBloques());
bw.Write(indPri.getDirInd());
}
/**\Compara dos indices primario*/
public int comparateTo(CIndice indB)
{
int res = -1;
switch (this.getTipoInd())
{
case 2://Short
if (BitConverter.ToInt16(getIndPrim(), 0) > BitConverter.ToInt16(indB.getIndPrim(), 0))
res = 1;
else
if (BitConverter.ToInt16(getIndPrim(), 0) == BitConverter.ToInt16(indB.getIndPrim(), 0))
res = 0;
break;
case 3://Int
if (BitConverter.ToInt32(getIndPrim(), 0) > BitConverter.ToInt32(indB.getIndPrim(), 0))
res = 1;
else
if (BitConverter.ToInt32(getIndPrim(), 0) == BitConverter.ToInt32(indB.getIndPrim(), 0))
res = 0;
break;
case 5://Long
if (BitConverter.ToInt64(getIndPrim(), 0) > BitConverter.ToInt64(indB.getIndPrim(), 0))
res = 1;
else
if (BitConverter.ToInt64(getIndPrim(), 0) == BitConverter.ToInt64(indB.getIndPrim(), 0))
res = 0;
break;
case 7://Cadena
byte []cA = getIndPrim();
byte[] cB = indB.getIndPrim();
char[] cadA = new char[cA.Length];
char[] cadB = new char[cB.Length];
string claveA, claveB;
for (int i = 0; i < cA.Length; i++)
cadA[i] = (char)cA[i];
claveA = new string(cadA);
for (int i = 0; i < cB.Length; i++)
cadB[i] = (char)cB[i];
claveB = new string(cadB);
if (claveA.ToUpper().CompareTo(claveB.ToUpper()) > 0)
res = 1;
else
if (claveA.ToUpper().CompareTo(claveB.ToUpper()) == 0)
res = 0;
break;
}
return (res);
}
/**Se obtiene el Id de un indice primario*/
public string dameIndPri(CIndice ind)
{
string cad = null;
switch (ind.getTipoInd())
{
case 3://Tipo Entero
cad = BitConverter.ToInt32(ind.getIndPrim(), 0).ToString();
break;
case 5://Clave primaria de tipo Long
cad = BitConverter.ToInt64(ind.getIndPrim(), 0).ToString();
break;
case 7://Tipo cadena
char []car = new char[1];
car[0] = (char)ind.getIndPrim()[0];
cad = new string(car);
break;
}
return (cad);
}
