Generic SObject Sort Method

sObjectSort.java

public static List<Sobject> sort(List<Sobject> sourceList,String fieldName){
	List<Sobject> sortedList = new List<Sobject>();
	List<SObjectWrapper> wrapperList = new List<SObjectWrapper>();


	for(Sobject object : sourceList){
		SObjectWrapper wrapperObject = new  SObjectWrapper(object,fieldName);
		wrapperList.add(wrapperObject);
	}

	wrapperList.sort();

	for(SObjectWrapper wrapperObject : wrapperList){
		sortedList.add(wrapperObject.sObjectRef);
	}

	return sortedList;
}



global class SObjectWrapper implements Comparable {

	public String fieldName;
    public SObject sObjectRef {get;private set;}
    
    // Constructor
    public OpportunityWrapper(sObjectRef,fieldNamep) {
        this.fieldName = fieldNamep;
    }
    
    // Compare opportunities based on the opportunity amount.
    global Integer compareTo(Object compareTo) {
        // Cast argument to OpportunityWrapper
        SObject compareToObject = (SObject)compareTo;
        
        Integer returnValue = 0;

        String targetValue = (String)compareToObject.get(fieldName);

		return targetValue.compareTo((String)sObjectRef.get(fieldName)
    }
}