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MemberChangeTracker.csx
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MemberChangeTracker.csx
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// From https://github.com/VaughnVernon/IDDD_Samples_NET/blob/master/iddd_agilepm/Domain.Model/Teams/MemberChangeTracker.cs
// Copyright 2012,2013 Vaughn Vernon
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
using System;
public class MemberChangeTracker
{
internal MemberChangeTracker(DateTime enablingOn, DateTime nameChangedOn, DateTime emailAddressChangedOn)
{
this.emailAddressChangedOnDate = emailAddressChangedOn;
this.enablingOnDate = enablingOn;
this.nameChangedOnDate = nameChangedOn;
}
readonly DateTime enablingOnDate;
readonly DateTime nameChangedOnDate;
readonly DateTime emailAddressChangedOnDate;
public bool CanChangeEmailAddress(DateTime asOfDateTime)
{
return this.emailAddressChangedOnDate < asOfDateTime;
}
public bool CanChangeName(DateTime asOfDateTime)
{
return this.nameChangedOnDate < asOfDateTime;
}
public bool CanToggleEnabling(DateTime asOfDateTime)
{
return this.enablingOnDate < asOfDateTime;
}
public MemberChangeTracker EmailAddressChangedOn(DateTime asOfDateTime)
{
return new MemberChangeTracker(this.enablingOnDate, this.nameChangedOnDate, asOfDateTime);
}
public MemberChangeTracker EnablingOn(DateTime asOfDateTime)
{
return new MemberChangeTracker(asOfDateTime, this.nameChangedOnDate, this.emailAddressChangedOnDate);
}
public MemberChangeTracker NameChangedOn(DateTime asOfDateTime)
{
return new MemberChangeTracker(this.enablingOnDate, asOfDateTime, this.emailAddressChangedOnDate);
}
protected override System.Collections.Generic.IEnumerable<object> GetEqualityComponents()
{
yield return this.enablingOnDate;
yield return this.nameChangedOnDate;
yield return this.emailAddressChangedOnDate;
}
}