/// <summary>
/// Initializes a new instance of the <see cref="IsolatingComposablePartDefinition"/> class.
/// </summary>
/// <param name="sourcePart">The source part.</param>
/// <param name="isolationMetadata">The isolation metadata.</param>
public IsolatingComposablePartDefinition(ComposablePartDefinition sourcePart, IIsolationMetadata isolationMetadata)
{
if (sourcePart == null)
{
throw new ArgumentNullException("sourcePart");
}
this._sourcePart = sourcePart;
this._isolationMetadata = isolationMetadata;
}
/// <summary>
/// Checks the metadata to see if isolation is required.
/// </summary>
/// <param name="metadata">The metadata.</param>
/// <param name="isolationMetadata">The isolation metadata.</param>
/// <returns>
/// <c>true</c> if isolation is required, otherwise <c>false</c>
/// </returns>
private static bool RequiresIsolation(IDictionary <string, object> metadata, out IIsolationMetadata isolationMetadata)
{
if (metadata.ContainsKey("Isolation"))
{
isolationMetadata = AttributedModelServices.GetMetadataView <IIsolationMetadata>(metadata);
if (isolationMetadata != null && isolationMetadata.Isolation != IsolationLevel.None)
{
return(true);
}
}
isolationMetadata = null;
return(false);
}
/// <summary>
/// Initializes a new instance of the <see cref="IsolatingComposablePart"/> class.
/// </summary>
/// <param name="definition">The definition.</param>
/// <param name="isolationMetadata">The isolation metadata.</param>
public IsolatingComposablePart(ComposablePartDefinition definition, IIsolationMetadata isolationMetadata)
{
this._definition = definition;
this._values = new Dictionary <ExportDefinition, object>();
this._isolationMetadata = isolationMetadata;
}
/// <summary>
/// Initializes a new instance of the <see cref="DisposableIsolatingComposablePart"/> class.
/// </summary>
/// <param name="definition">The definition.</param>
/// <param name="isolationMetadata">The isolation metadata.</param>
public DisposableIsolatingComposablePart(ComposablePartDefinition definition, IIsolationMetadata isolationMetadata)
: base(definition, isolationMetadata)
{
}