/// <summary>
/// Constructs a <b>SchemeRule</b> with the given name and that applies in
/// the circumstances defined by its <see cref="Precondition"/>.
/// </summary>
/// <param name="precondition">A <see cref="Precondition"/> instance.</param>
/// <param name="name">The unique name for the rule.</param>
/// <param name="elementContext">The element name based context.</param>
/// <param name="typeContext">The type name based context (or <c>null</c>)</param>
/// <param name="attributeName">The name of the attribute containing the scheme URI.</param>
public SchemeRule(Precondition precondition, string name,
ElementContext elementContext, TypeContext typeContext, string attributeName)
: base(precondition, name)
{
this.elementContext = elementContext;
this.typeContext = typeContext;
this.attributeName = attributeName;
}
/// <summary>
/// Constructs a <b>SchemeRule</b> with the given name and that applies in
/// the circumstances defined by its <see cref="Precondition"/>.
/// </summary>
/// <param name="precondition">A <see cref="Precondition"/> instance.</param>
/// <param name="name">The unique name for the rule.</param>
/// <param name="elementContext">The element name based context.</param>
/// <param name="attributeName">The name of the attribute containing the scheme URI.</param>
public SchemeRule(Precondition precondition, string name,
ElementContext elementContext, string attributeName)
: this(precondition, name, elementContext, null, attributeName)
{
}