public String evalString(VTDNav vn) {
double dval = operand.evalNumber(vn);
if (dval == (int) dval) {
return "" + ((int) dval);
}
return "" + dval;
}
public void setPosition(int pos) {
operand.setPosition(pos);
}
public void setContextSize(int size) {
operand.setContextSize(size);
}
// to support computer context size
// needs to add
public boolean requireContextSize() {
return operand.requireContextSize();
}
public void reset(VTDNav vn) {
operand.reset(vn);
}
public double evalNumber(VTDNav vn) {
return -1 * operand.evalNumber(vn);
}
public boolean evalBoolean(VTDNav vn) {
return operand.evalBoolean(vn);
}