/// <summary>
/// This is used implicitly by -[LiveQuery update] to decide whether the query result has changed
/// enough to notify the client.
/// </summary>
/// <remarks>
/// This is used implicitly by -[LiveQuery update] to decide whether the query result has changed
/// enough to notify the client. So it's important that it not give false positives, else the app
/// won't get notified of changes.
/// </remarks>
public override bool Equals(object obj)
{
if (obj == this)
{
return(true);
}
if (!(obj is QueryRow))
{
return(false);
}
var other = (QueryRow)obj;
var documentPropertiesEqual = Misc.IsEqual(DocumentProperties, other.DocumentProperties);
if (Database == other.Database &&
Misc.IsEqual(Key, other.Key) &&
Misc.IsEqual(SourceDocumentId, other.SourceDocumentId) &&
documentPropertiesEqual)
{
// If values were emitted, compare them. Otherwise we have nothing to go on so check
// if _anything_ about the doc has changed (i.e. the sequences are different.)
if (Value != null || other.Value != null)
{
return(Value.Equals(other.Value));
}
else
{
return(SequenceNumber == other.SequenceNumber);
}
}
return(false);
}