/// <summary>
/// Produces a copy of this list in which the item order has been randomized.
/// </summary>
/// <returns>List containing items in random order.</returns>
public PFKeyValueList <K, V> Randomize()
{
PFKeyValueList <K, V> randomizedList = new PFKeyValueList <K, V>();
PFKeyValueListSorted <int, stKeyValuePair <K, V> > sortList = new PFKeyValueListSorted <int, stKeyValuePair <K, V> >();
RandomNumber rnd = new RandomNumber();
int min = 0;
int max = 200000000;
for (int i = 0; i < this.Count; i++)
{
stKeyValuePair <K, V> item = this[i];
int key = rnd.GenerateRandomNumber(min, max);
sortList.Add(key, item);
}
IEnumerator <KeyValuePair <int, stKeyValuePair <K, V> > > enumerator = sortList.GetEnumerator();
while (enumerator.MoveNext())
{
// Get current key value pair
stKeyValuePair <int, stKeyValuePair <K, V> > keyValuePair = new stKeyValuePair <int, stKeyValuePair <K, V> >(enumerator.Current.Key, enumerator.Current.Value);
randomizedList.Add(keyValuePair.Value);
}
return(randomizedList);
}
/// <summary>
/// Compares two keys that are string values.
/// </summary>
/// <param name="x">First key/value pair to compare.</param>
/// <param name="y">Second key/value pair to compare.</param>
/// <returns>Less than zero: x precedes y in the sort order. Zero: x occurs in the same position in the sort order as y. Greater than zero: x follows y in the sort order. </returns>
public static int CompareKeyValueListStringString(stKeyValuePair <string, string> x, stKeyValuePair <string, string> y)
{
int ret = 0;
if (x.Key != null && y.Key != null)
{
ret = x.Key.CompareTo(y.Key);
}
else
{
if (x.Key != null)
{
ret = 1;
}
else if (y.Key != null)
{
ret = -1;
}
else
{
ret = 0;
}
}
return(ret);
}
/// <summary>
/// Merges current list with the list specified in the parameter.
/// </summary>
/// <param name="list">List to merge with.</param>
/// <returns>Merged list.</returns>
public PFKeyValueListSorted <K, V> Merge(PFKeyValueListSorted <K, V> list)
{
PFKeyValueListSorted <K, V> mergedList = new PFKeyValueListSorted <K, V>();
if (list == null)
{
return(mergedList);
}
IEnumerator <KeyValuePair <K, V> > enumerator = this.GetEnumerator();
while (enumerator.MoveNext())
{
// Get current key value pair
stKeyValuePair <K, V> keyValuePair = new stKeyValuePair <K, V>(enumerator.Current.Key, enumerator.Current.Value);
mergedList.Add(keyValuePair.Key, keyValuePair.Value);
}
IEnumerator <KeyValuePair <K, V> > enumList = list.GetEnumerator();
while (enumList.MoveNext())
{
// Get current key value pair
stKeyValuePair <K, V> keyValuePair = new stKeyValuePair <K, V>(enumList.Current.Key, enumList.Current.Value);
mergedList.Add(keyValuePair.Key, keyValuePair.Value);
}
return(mergedList);
}
/// <summary>
/// Routine that concatenates two or more lists into one list.
/// </summary>
/// <param name="lists">List of list objects to be concatenated.</param>
/// <returns>Concatenated list.</returns>
public static PFKeyValueListSorted <K, V> ConcatenateLists(PFList <PFKeyValueListSorted <K, V> > lists)
{
PFKeyValueListSorted <K, V> concatenatedList = new PFKeyValueListSorted <K, V>();
if (lists == null)
{
return(concatenatedList);
}
for (int listInx = 0; listInx < lists.Count; listInx++)
{
PFKeyValueListSorted <K, V> tempList = lists[listInx];
if (tempList != null)
{
IEnumerator <KeyValuePair <K, V> > enumerator = tempList.GetEnumerator();
while (enumerator.MoveNext())
{
// Get current key value pair
stKeyValuePair <K, V> keyValuePair = new stKeyValuePair <K, V>(enumerator.Current.Key, enumerator.Current.Value);
concatenatedList.Add(keyValuePair.Key, keyValuePair.Value);
}
}
}
return(concatenatedList);
}
/// <summary>
/// Searches for and returns key/value pair that has matching key.
/// </summary>
/// <param name="keyToFind">Key to search for.</param>
/// <returns>Object containing key and value. Returns empty key/val object if not found.</returns>
public stKeyValuePair <K, V> Find(string keyToFind)
{
stKeyValuePair <K, V> retval = default(stKeyValuePair <K, V>);
foreach (stKeyValuePair <K, V> kvp in this)
{
if (kvp.Key.ToString() == keyToFind)
{
retval = kvp;
}
}
return(retval);
}
/// <summary>
/// Converts PFKeyValueList object to PFKeyValueListSorted object.
/// </summary>
/// <param name="kvlist"></param>
/// <returns>PFKeyValueListSorted object.</returns>
public static PFKeyValueListSorted <K, V> ConvertPFKeyValueListToSortedList(PFKeyValueList <K, V> kvlist)
{
PFKeyValueListSorted <K, V> kvlistSorted = new PFKeyValueListSorted <K, V>();
kvlist.SetToBOF();
stKeyValuePair <K, V> stKeyValuePair = kvlist.FirstItem;
while (!kvlist.EOF)
{
kvlistSorted.Add(stKeyValuePair.Key, stKeyValuePair.Value);
stKeyValuePair = kvlist.NextItem;
}
return(kvlistSorted);
}
/// <summary>
/// Copies current list to a new list.
/// </summary>
/// <returns>Copy of list.</returns>
public PFKeyValueListSorted <K, V> Copy()
{
PFKeyValueListSorted <K, V> newList = new PFKeyValueListSorted <K, V>();
IEnumerator <KeyValuePair <K, V> > enumerator = this.GetEnumerator();
while (enumerator.MoveNext())
{
// Get current key value pair
stKeyValuePair <K, V> keyValuePair = new stKeyValuePair <K, V>(enumerator.Current.Key, enumerator.Current.Value);
newList.Add(keyValuePair.Key, keyValuePair.Value);
}
return(newList);
}
/// <summary>
/// Converts PFKeyValueListSorted object to PFKeyValueList object.
/// </summary>
/// <returns>PFKeyValueList object.</returns>
public PFKeyValueList <K, V> ConvertThisToPFKeyValueList()
{
PFKeyValueList <K, V> kvlist = new PFKeyValueList <K, V>();
IEnumerator <KeyValuePair <K, V> > enumerator = GetEnumerator();
while (enumerator.MoveNext())
{
// Get current key value pair
stKeyValuePair <K, V> keyValuePair = new stKeyValuePair <K, V>(enumerator.Current.Key, enumerator.Current.Value);
kvlist.Add(keyValuePair);
}
return(kvlist);
}
/// <summary>
/// Converts current instance of a PFKeyValueList object to PFList object.
/// </summary>
/// <returns>PFList object.</returns>
public PFList <stKeyValuePair <K, V> > ConvertThisToPFList()
{
PFList <stKeyValuePair <K, V> > list = new PFList <stKeyValuePair <K, V> >();
stKeyValuePair <K, V> kvp = default(stKeyValuePair <K, V>);
if (this.Count > 0)
{
this.SetToBOF();
kvp = this.FirstItem;
while (this.EOF == false)
{
list.Add(new stKeyValuePair <K, V>(kvp.Key, kvp.Value));
kvp = this.NextItem;
}
}
return(list);
}
//properties
//methods
/// <summary>
/// Compares two keys that are int values.
/// </summary>
/// <param name="x">First key/value pair to compare.</param>
/// <param name="y">Second key/value pair to compare.</param>
/// <returns>Less than zero: x precedes y in the sort order. Zero: x occurs in the same position in the sort order as y. Greater than zero: x follows y in the sort order. </returns>
public static int CompareKeyValueListIntString(stKeyValuePair <int, string> x, stKeyValuePair <int, string> y)
{
int ret = 0;
if (x.Key < y.Key)
{
ret = -1;
}
else if (x.Key > y.Key)
{
ret = 1;
}
else
{
ret = 0;
}
return(ret);
}
/// <summary>
/// Merges current list with the array of lists specified in the parameter.
/// </summary>
/// <param name="lists">Lists to merge with.</param>
/// <returns>Merged list.</returns>
public PFKeyValueListSorted <K, V> Merge(PFKeyValueListSorted <K, V>[] lists)
{
PFKeyValueListSorted <K, V> mergedList = new PFKeyValueListSorted <K, V>();
if (lists == null)
{
return(mergedList);
}
IEnumerator <KeyValuePair <K, V> > enumerator = this.GetEnumerator();
while (enumerator.MoveNext())
{
// Get current key value pair
stKeyValuePair <K, V> keyValuePair = new stKeyValuePair <K, V>(enumerator.Current.Key, enumerator.Current.Value);
mergedList.Add(keyValuePair.Key, keyValuePair.Value);
}
for (int listInx = 0; listInx < lists.Length; listInx++)
{
PFKeyValueListSorted <K, V> tempList = lists[listInx];
if (tempList != null)
{
IEnumerator <KeyValuePair <K, V> > enumTempList = tempList.GetEnumerator();
while (enumTempList.MoveNext())
{
// Get current key value pair
stKeyValuePair <K, V> keyValuePair = new stKeyValuePair <K, V>(enumTempList.Current.Key, enumTempList.Current.Value);
mergedList.Add(keyValuePair.Key, keyValuePair.Value);
}
}
}
return(mergedList);
}
/// <summary>
/// Removes the item identified by the specified key from the list.
/// </summary>
/// <param name="keyToRemove">Key to search for and remove.</param>
public void Remove(string keyToRemove)
{
stKeyValuePair <K, V> keyval = this.Find(keyToRemove);
this.Remove(keyval);
}
