protected EntityConfiguration <TEntity> AddCollection <TElement>(Expression <Func <TEntity, ICollection <TElement> > > accessor, string displayName, IEqualityComparer <TElement> comparer = null)
{
PropertyInfo property = ChangeDetector.GetProperty(accessor);
detector.AddCollection(property, displayName, comparer);
return(this);
}
protected EntityConfiguration <TEntity> Add <TProp>(Expression <Func <TEntity, TProp> > accessor, IEqualityComparer <TProp> comparer = null)
{
var propertyInfo = ChangeDetector.GetProperty <TEntity, TProp>(accessor);
detector.Add <TEntity, TProp>(propertyInfo, null, null, comparer);
return(this);
}
protected EntityConfiguration <TEntity> Add <TProp>(Expression <Func <TEntity, TProp> > accessor, Func <TEntity, string> displayName, Func <TEntity, TProp, string> formatter, IEqualityComparer <TProp> comparer = null)
{
var propertyInfo = ChangeDetector.GetProperty <TEntity, TProp>(accessor);
detector.Add(propertyInfo, displayName, formatter, comparer);
return(this);
}
public IPropertyChange GetChange <TProp>(Expression <Func <TDerived, TProp> > accessor, TDerived original, TDerived updated)
{
PropertyInfo property = ChangeDetector.GetProperty(accessor);
Snapshot originalSnapshot = detector.TakeSnapshot(original, property);
Snapshot updatedSnapshot = detector.TakeSnapshot(updated, property);
return(detector.GetChange(property, originalSnapshot, updatedSnapshot));
}
public bool HasChange <TProp>(Expression <Func <TEntity, TProp> > accessor, TEntity original, TEntity updated)
{
PropertyInfo property = ChangeDetector.GetProperty(accessor);
Snapshot originalSnapshot = detector.TakeSnapshot(original, property);
Snapshot updatedSnapshot = detector.TakeSnapshot(updated, property);
return(detector.HasChange(property, originalSnapshot, updatedSnapshot));
}
private IPropertyChange getChange <TProp>(Expression <Func <TEntity, TProp> > accessor)
{
PropertyInfo property = ChangeDetector.GetProperty(accessor);
if (property == null)
{
return(null);
}
return(changes.Where(c => c.Property == property).SingleOrDefault());
}
public DerivedEntityChangeDetector(ChangeDetector detector)
{
this.detector = detector;
}
private EntityConfiguration(ChangeDetector detector)
{
this.detector = detector;
}
internal ICollectionChange <TElement> GetCollectionChanges <TElement>(Expression <Func <TEntity, ICollection <TElement> > > accessor, CollectionSnapshotLookup original, TEntity updated, ElementState state)
{
PropertyInfo property = ChangeDetector.GetProperty(accessor);
return(detector.GetCollectionChanges <TElement>(property, original, updated, state));
}
public EntityConfiguration()
{
this.detector = new ChangeDetector();
}