public void setFunctionType(FunctionType functionType) {
this.functionType = functionType;
if(this.functionType.equals(FunctionType.H_1)){
this.function = new OntoSpreadDegradationFunctionImpl();
}else if(this.functionType.equals(FunctionType.H_2)){
this.function = new OntoSpreadDegradationFunctionIterationsImpl();
}
}