/* (non-Javadoc)
* @see java.lang.Object#equals(java.lang.Object)
* Returns true if the IDs and values are equal. Values can be unassigned, but then both have to be unassigned
*/
public boolean equals(Object to) {
if (to != null && to instanceof Assignment) {
Assignment other = (Assignment) to;
if (variableId.equals(other.getVariableId()))
if ((value == null && other.getValue() == null) || value.equals(other.getValue()))
return true;
}
return false;
}
/**
* @param arg0
* @return a comparison of the IDs of the variables (values are ignored)
*/
public int compareTo(Object arg0) {
Assignment new_name = (Assignment) arg0;
int vidcmp = variableId.compareTo(new_name.getVariableId());
if (vidcmp == 0) return value.compareTo(new_name.value);
else return vidcmp;
}