/// <summary>
/// Gets the rows that reside in the version that corresponds to the state.
/// </summary>
/// <param name="changeVersion">The change version.</param>
/// <returns>
/// Returns a <see cref="IEnumerable{IRow}" /> representing the rows for the state.
/// </returns>
/// <exception cref="System.NotSupportedException">The row state is not supported.</exception>
public IEnumerable <IRow> GetRows(DeltaRowChangeVersion changeVersion)
{
IFeatureWorkspace workspace = this.GetWorkspace(changeVersion);
if (workspace != null)
{
ITable table = workspace.OpenTable(this.ModifiedClassInfo.ChildClassName);
ICursor cursor = null;
try
{
foreach (var oids in this.Select(o => o.OID.ToString(CultureInfo.InvariantCulture)).Batch(1000))
{
IQueryFilter filter = new QueryFilterClass();
filter.WhereClause = string.Format("{0} IN ({1})", table.OIDFieldName, string.Join(",", oids.ToArray()));
cursor = table.Search(filter, false);
foreach (var row in cursor.AsEnumerable())
{
yield return(row);
}
}
}
finally
{
if (cursor != null)
{
while (Marshal.ReleaseComObject(cursor) > 0)
{
}
}
}
}
}
/// <summary>
/// Gets the rows that reside in the version that corresponds to the state.
/// </summary>
/// <param name="changeVersion">The change version.</param>
/// <param name="oid">The oid.</param>
/// <returns>
/// Returns a <see cref="IRow" /> representing the row for the state.
/// </returns>
public IRow GetRow(DeltaRowChangeVersion changeVersion, int oid)
{
IFeatureWorkspace workspace = this.GetWorkspace(changeVersion);
if (workspace == null)
{
return(null);
}
using (ComReleaser cr = new ComReleaser())
{
ITable table = workspace.OpenTable(this.ModifiedClassInfo.ChildClassName);
cr.ManageLifetime(table);
IQueryFilter filter = new QueryFilterClass();
filter.WhereClause = string.Format("{0} = {1}", table.OIDFieldName, oid);
var cursor = table.Search(filter, false);
cr.ManageLifetime(cursor);
foreach (var row in cursor.AsEnumerable())
{
return(row);
}
}
return(null);
}
/// <summary>
/// Gets the workspace for the delta row state enumeration
/// </summary>
/// <param name="changeVersion">The change version.</param>
/// <returns>
/// Returns a <see cref="IFeatureWorkspace" /> representing the workspace for that state
/// </returns>
private IFeatureWorkspace GetWorkspace(DeltaRowChangeVersion changeVersion)
{
switch (changeVersion)
{
case DeltaRowChangeVersion.SourceVersion:
return(this.SourceVersion as IFeatureWorkspace);
case DeltaRowChangeVersion.TargetVersion:
return(this.TargetVersion as IFeatureWorkspace);
default:
return(this.CommonAncestorVersion as IFeatureWorkspace);
}
}
/// <summary>
/// Gets the rows that reside in the version that corresponds to the state.
/// </summary>
/// <param name="changeVersion">The change version.</param>
/// <param name="dataChangeTypes">The data change types.</param>
/// <returns>
/// Returns a <see cref="IEnumerable{IRow}" /> representing the rows for the state.
/// </returns>
/// <exception cref="System.NotSupportedException">The row state is not supported.</exception>
public IEnumerable <IRow> GetRows(DeltaRowChangeVersion changeVersion, params esriDataChangeType[] dataChangeTypes)
{
var rows = this.GetRows(dataChangeTypes);
return(rows.GetRows(changeVersion));
}
/// <summary>
/// Gets the rows that reside in the version that corresponds to the state.
/// </summary>
/// <param name="changeVersion">The change version.</param>
/// <param name="deltaRow">The delta row.</param>
/// <returns>
/// Returns a <see cref="IRow" /> representing the row for the state.
/// </returns>
public IRow GetRow(DeltaRowChangeVersion changeVersion, DeltaRow deltaRow)
{
return(this.GetRow(changeVersion, deltaRow.OID));
}
