protected Element(VaultBase vault, String name, IEnumerable<Element> children)
{
Vault = vault.AssertNotNull();
Bind(Vault);
// setting parent auto-adds the child to this collection
// so it should be initialized as an empty one
_children = new IndexedNodeCollection(this);
(children ?? Enumerable.Empty<Element>()).ForEach(c => c.Parent = (Branch)this);
Name = name;
_metadata = new Metadata(this);
}
public Metadata InitializeFrom(Func<Stream> lazyStream)
{
using (Vault.ExposeReadWrite())
{
var oldMetadata = Clone();
var newMetadata = new Metadata(_element, lazyStream);
var corrId = BoundVault.ReportChanging(EventReason.Metadata, Element, oldMetadata, newMetadata);
VerifyMutation();
_lazySource = lazyStream;
SaveMePlease = true;
BoundVault.ReportChanged(corrId, EventReason.Metadata, Element, oldMetadata, newMetadata);
return this;
}
}
public override String this[String key]
{
get
{
using (Vault.ExposeReadOnly())
{
EnsureDefault();
lock (_isomorphicWritesLock)
{
if (!ContainsKey(key))
{
Impl.Add(key, null);
}
}
return Impl[key];
}
}
set
{
using (Vault.ExposeReadOnly())
{
EnsureDefault();
if (ContainsKey(key) && Impl[key] == value)
{
return;
}
else
{
using (Vault.ExposeReadWrite())
{
var oldMetadata = Clone();
var newImpl = new Dictionary<String, String>(Impl);
newImpl[key] = value;
var newMetadata = new Metadata(_element, newImpl);
var corrId = BoundVault.ReportChanging(EventReason.Metadata, Element, oldMetadata, newMetadata);
VerifyMutation();
Impl[key] = value;
SaveMePlease = true;
BoundVault.ReportChanged(corrId, EventReason.Metadata, Element, oldMetadata, newMetadata);
}
}
}
}
}
public override bool Remove(String key)
{
using (Vault.ExposeReadOnly())
{
if (!Impl.ContainsKey(key))
{
return false;
}
else
{
if (Impl[key] == null)
{
return false;
}
else
{
using (Vault.ExposeReadWrite())
{
var oldMetadata = Clone();
var newImpl = new Dictionary<String, String>(Impl);
newImpl.Remove(key);
var newMetadata = new Metadata(_element, newImpl);
var corrId = BoundVault.ReportChanging(EventReason.Metadata, Element, oldMetadata, newMetadata);
VerifyMutation();
var result = Impl.Remove(key);
EnsureDefault();
SaveMePlease = true;
BoundVault.ReportChanged(corrId, EventReason.Metadata, Element, oldMetadata, newMetadata);
return result;
}
}
}
}
}
public override void Add(String key, String value)
{
using (Vault.ExposeReadWrite())
{
EnsureDefault();
var oldMetadata = Clone();
var newImpl = new Dictionary<String, String>(Impl);
newImpl.Add(key, value);
var newMetadata = new Metadata(_element, newImpl);
var corrId = BoundVault.ReportChanging(EventReason.Metadata, Element, oldMetadata, newMetadata);
VerifyMutation();
Impl.Add(key, value);
SaveMePlease = true;
BoundVault.ReportChanged(corrId, EventReason.Metadata, Element, oldMetadata, newMetadata);
}
}
public override bool Remove(KeyValuePair<String, String> item)
{
var key = item.Key;
var value = item.Value;
using (Vault.ExposeReadOnly())
{
if (!Impl.ContainsKey(key))
{
return false;
}
else
{
if (Impl[key] == value)
{
return false;
}
else
{
using (Vault.ExposeReadWrite())
{
var oldMetadata = Clone();
var newImpl = new Dictionary<String, String>(Impl);
((ICollection<KeyValuePair<String, String>>)newImpl).Remove(item);
var newMetadata = new Metadata(_element, newImpl);
var corrId = BoundVault.ReportChanging(EventReason.Metadata, Element, oldMetadata, newMetadata);
VerifyMutation();
var result = ((ICollection<KeyValuePair<String, String>>)Impl).Remove(item);
EnsureDefault();
SaveMePlease = true;
BoundVault.ReportChanged(corrId, EventReason.Metadata, Element, oldMetadata, newMetadata);
return result;
}
}
}
}
}
public override void Add(KeyValuePair<String, String> item)
{
using (Vault.ExposeReadWrite())
{
EnsureDefault();
var oldMetadata = Clone();
var newImpl = new Dictionary<String, String>(Impl);
((ICollection<KeyValuePair<String, String>>)newImpl).Add(item);
var newMetadata = new Metadata(_element, newImpl);
var corrId = BoundVault.ReportChanging(EventReason.Metadata, Element, oldMetadata, newMetadata);
VerifyMutation();
((ICollection<KeyValuePair<String, String>>)Impl).Add(item);
SaveMePlease = true;
BoundVault.ReportChanged(corrId, EventReason.Metadata, Element, oldMetadata, newMetadata);
}
}
