String calculationType = (String) child
.getValue(MEMENTO_KEY_CALCULATION_TYPE);
if ("min".equals(calculationType)) {
setResolver(slot, new CalculationResolver(property,
Subset.ALL, new MinCalculation()));
} else if ("max".equals(calculationType)) {
setResolver(slot, new CalculationResolver(property,
Subset.ALL, new MaxCalculation()));
} else if ("sum".equals(calculationType)) {
setResolver(slot, new CalculationResolver(property,