Filtering API

IChangeEventFilter

Filter interface.

public interface IChangeEventFilter
{
    bool ShouldProcess(BubblingChange change);
}

Built-in Filters

PropertyNameFilter

var filter = new PropertyNameFilter("Name", "Email");

NodeNameFilter

var filter = new NodeNameFilter("Users", "Settings");

ChangeKindFilter

var filter = new ChangeKindFilter(
    NodeChangeKind.CollectionAdd,
    NodeChangeKind.CollectionRemove
);

PathFilter

var filter = new PathFilter("Root/Users/*");

ThrottleFilter

var filter = new ThrottleFilter(TimeSpan.FromMilliseconds(100));

Using Filters

// Register
ChangeMessenger.RegisterFilter("myFilter", filter);

// Remove
ChangeMessenger.RemoveFilter("myFilter");

Custom Filters

public class CustomFilter : IChangeEventFilter
{
    public bool ShouldProcess(BubblingChange change)
    {
        return change.NewValue != null;
    }
}