/// <summary>
/// Comparison implementation that compares keys. Version numbers
/// are not factored into equality comparisons.
/// </summary>
/// <param name="obj">The model identifier to compare to.</param>
/// <returns><c>true</c> if the <see cref="ModelId{T}"/>s are considered equal;
/// otherwise <c>false</c> is returned.</returns>
public bool Equals(ModelId <T> obj)
{
// If parameter is null return false.
if (ReferenceEquals(null, obj))
{
return(false);
}
// If these are the same references then return true.
if (ReferenceEquals(this, obj))
{
return(true);
}
// Match on the individual fields.
return(obj.ModelKey.Equals(ModelKey));
}
/// <summary>
/// Constructs a new model identifier with the <paramref name="modelId"/>'s internal key
/// and the given <paramref name="versionNumber"/>.
/// </summary>
/// <param name="modelId">The model identifier to copy.</param>
/// <param name="versionNumber">The version number associated with this new model identifier.</param>
public ModelId(ModelId <T> modelId, int versionNumber)
: this(modelId.ModelKey, versionNumber)
{
}
/// <summary>
/// Copy constructor.
/// </summary>
/// <param name="modelId">The model identifier to copy.</param>
public ModelId(ModelId <T> modelId)
: this(modelId.ModelKey, modelId.VersionNumber)
{
}