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Metadata of multiple attributes can now be updated in a single transaction.

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This commit is contained in:
Michael Grafnetter 2017-07-12 20:36:20 +02:00
parent e5dfcd0c87
commit 6077cd2b39
1 changed files with 21 additions and 6 deletions
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27
Src/DSInternals.DataStore/DatastoreObject.cs
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@ -176,21 +176,36 @@
bool hasChanged = this.cursor.SetValue (columnId, newValue);
return hasChanged;
}
public void UpdateAttributeMeta(string attributeName, long usn, DateTime time)
{
Validator.AssertNotNull(attributeName, "attributeName");
this.UpdateAttributeMeta(new string[] { attributeName }, usn, time);
}
public void UpdateAttributeMeta(string[] attributeNames, long usn, DateTime time)
{
Validator.AssertNotNull(attributeNames, "attributeNames");
ColumnAccessor record = this.cursor.EditRecord;
// Update the uSNChanged attribute
this.SetAttribute<long>(CommonDirectoryAttributes.USNChanged, usn);
// Update the whenChanged attribute
// TODO: Add time as parameter?
DateTime now = DateTime.Now;
this.SetAttribute<long>(CommonDirectoryAttributes.WhenChanged, now.ToGeneralizedTime());
// Update the replPropertyMetaData attribute
this.SetAttribute<long>(CommonDirectoryAttributes.WhenChanged, time.ToGeneralizedTime());
// Update the replPropertyMetaData attribute (read-modify-write)
AttributeMetadataCollection meta;
this.ReadAttribute(CommonDirectoryAttributes.PropertyMetaData, out meta);
int attributeId = this.context.Schema.FindAttribute(attributeName).Id.Value;
meta.Update(attributeId, this.context.DomainController.InvocationId, now, usn);
foreach(var attributeName in attributeNames)
{
// We go through all attributes that are changed in this transaction
int attributeId = this.context.Schema.FindAttribute(attributeName).Id.Value;
meta.Update(attributeId, this.context.DomainController.InvocationId, time, usn);
}
this.SetAttribute(CommonDirectoryAttributes.PropertyMetaData, meta.ToByteArray());
}
}