internal SyncAnswerCollection(AnswerCollection list)
: base(Tag.Default)
{
rwLock = new System.Threading.ReaderWriterLock();
collection = list;
}
public override int AddRange(AnswerCollection x)
{
int result = 0;
rwLock.AcquireWriterLock(timeout);
try {
result = collection.AddRange(x);
}
finally {
rwLock.ReleaseWriterLock();
}
return result;
}
internal ReadOnlyAnswerCollection(AnswerCollection list)
: base(Tag.Default)
{
m_collection = list;
}
public override int AddRange(AnswerCollection x)
{
throw new NotSupportedException("This is a Read Only Collection and can not be modified");
}
/// <summary>
/// Initializes a new instance of the <c>AnswerCollection</c> class
/// that contains elements copied from the specified <c>AnswerCollection</c>.
/// </summary>
/// <param name="c">The <c>AnswerCollection</c> whose elements are copied to the new collection.</param>
public AnswerCollection(AnswerCollection c)
{
m_array = new Answer[c.Count];
AddRange(c);
}
/// <summary>
/// Initializes a new instance of the <c>Enumerator</c> class.
/// </summary>
/// <param name="tc"></param>
internal Enumerator(AnswerCollection tc)
{
m_collection = tc;
m_index = -1;
m_version = tc.m_version;
}
/// <summary>
/// Creates a shallow copy of the <see cref="AnswerCollection"/>.
/// </summary>
public virtual object Clone()
{
AnswerCollection newColl = new AnswerCollection(m_count);
Array.Copy(m_array, 0, newColl.m_array, 0, m_count);
newColl.m_count = m_count;
newColl.m_version = m_version;
return newColl;
}
/// <summary>
/// Adds the elements of another <c>AnswerCollection</c> to the current <c>AnswerCollection</c>.
/// </summary>
/// <param name="x">The <c>AnswerCollection</c> whose elements should be added to the end of the current <c>AnswerCollection</c>.</param>
/// <returns>The new <see cref="AnswerCollection.Count"/> of the <c>AnswerCollection</c>.</returns>
public virtual int AddRange(AnswerCollection x)
{
if (m_count + x.Count >= m_array.Length)
EnsureCapacity(m_count + x.Count);
Array.Copy(x.m_array, 0, m_array, m_count, x.Count);
m_count += x.Count;
m_version++;
return m_count;
}
/// <summary>
/// Creates a synchronized (thread-safe) wrapper for a
/// <c>AnswerCollection</c> instance.
/// </summary>
/// <returns>
/// An <c>AnswerCollection</c> wrapper that is synchronized (thread-safe).
/// </returns>
public static AnswerCollection Synchronized(AnswerCollection list)
{
if(list==null)
throw new ArgumentNullException("list");
return new SyncAnswerCollection(list);
}
/// <summary>
/// Creates a read-only wrapper for a
/// <c>AnswerCollection</c> instance.
/// </summary>
/// <returns>
/// An <c>AnswerCollection</c> wrapper that is read-only.
/// </returns>
public static AnswerCollection ReadOnly(AnswerCollection list)
{
if(list==null)
throw new ArgumentNullException("list");
return new ReadOnlyAnswerCollection(list);
}
public Question()
{
this.text = "";
this.responses = 0;
this.answers = new AnswerCollection();
}
