private static InteractionBuffer IsUsable(IFacetHolder facetHolder, InteractionContext ic, InteractionBuffer buf) {
IFacet[] facets = facetHolder.GetFacets(FacetFilters.IsA(typeof (IDisablingInteractionAdvisor)));
foreach (IDisablingInteractionAdvisor advisor in facets) {
buf.Append(advisor.Disables(ic));
}
return buf;
}
public static InteractionBuffer IsValid(IFacetHolder facetHolder, InteractionContext ic, InteractionBuffer buf) {
IFacet[] facets = facetHolder.GetFacets(FacetFilters.IsA(typeof (IValidatingInteractionAdvisor)));
foreach (IValidatingInteractionAdvisor advisor in facets) {
buf.Append(advisor.Invalidates(ic));
}
return buf;
}
public static bool IsVisible(IFacetHolder facetHolder, InteractionContext ic) {
var buf = new InteractionBuffer();
IFacet[] facets = facetHolder.GetFacets(FacetFilters.IsA(typeof (IHidingInteractionAdvisor)));
foreach (IHidingInteractionAdvisor advisor in facets) {
buf.Append(advisor.Hides(ic));
}
return IsVisible(buf);
}
public static bool IsVisibleWhenPersistent(IFacetHolder facetHolder, InteractionContext ic) {
var buf = new InteractionBuffer();
IFacet[] facets = facetHolder.GetFacets(FacetFilters.IsA(typeof (IHidingInteractionAdvisor)));
foreach (IHidingInteractionAdvisor advisor in facets) {
if (advisor is IHiddenFacet) {
if (((IHiddenFacet) advisor).Value == When.OncePersisted) {
continue;
}
}
buf.Append(advisor.Hides(ic));
}
return IsVisible(buf);
}
public virtual IConsent IsAssociationValid(INakedObject inObject, INakedObject reference) {
if (reference != null && !reference.Specification.IsOfType(Specification)) {
return GetConsent(string.Format(Resources.NakedObjects.TypeMismatchError, Specification.SingularName));
}
if (!inObject.ResolveState.IsNotPersistent()) {
if (reference != null && !reference.Specification.IsParseable && reference.ResolveState.IsNotPersistent()) {
return GetConsent(Resources.NakedObjects.TransientFieldMessage);
}
}
var buf = new InteractionBuffer();
InteractionContext ic = InteractionContext.ModifyingPropParam(NakedObjectsContext.Session, false, inObject, Identifier, reference);
InteractionUtils.IsValid(this, ic, buf);
return InteractionUtils.IsValid(buf);
}
/// <summary>
/// To decode an <see cref="InteractionBuffer" /> returned by
/// <see
/// cref="IsValid(IFacetHolder,InteractionContext,InteractionBuffer)" />
/// </summary>
public static IConsent IsValid(InteractionBuffer buf) {
return GetConsent(buf.ToString());
}
/// <summary>
/// To decode an <see cref="InteractionBuffer" /> returned by
/// <see
/// cref="IsUsable(IFacetHolder,InteractionContext,InteractionBuffer)" />
/// </summary>
private static IConsent IsUsable(InteractionBuffer buf) {
return GetConsent(buf.ToString());
}
private static bool IsVisible(InteractionBuffer buf) {
return buf.IsEmpty;
}
/// <summary>
/// Checks declarative constraints, and then checks imperatively.
/// </summary>
public virtual IConsent IsParameterSetValid(INakedObject nakedObject, INakedObject[] parameterSet) {
InteractionContext ic;
var buf = new InteractionBuffer();
if (parameterSet != null) {
INakedObject[] parms = RealParameters(nakedObject, parameterSet);
for (int i = 0; i < parms.Length; i++) {
ic = InteractionContext.ModifyingPropParam(NakedObjectsContext.Session, false, RealTarget(nakedObject), Identifier, parameterSet[i]);
InteractionUtils.IsValid(GetParameter(i), ic, buf);
}
}
INakedObject target = RealTarget(nakedObject);
ic = InteractionContext.InvokingAction(NakedObjectsContext.Session, false, target, Identifier, parameterSet);
InteractionUtils.IsValid(this, ic, buf);
return InteractionUtils.IsValid(buf);
}
