/// <summary>
/// Visits the children of the given payload element and replaces it with a copy if any child changes
/// </summary>
/// <param name="payloadElement">The payload element to potentially replace</param>
/// <returns>The original element or a copy to replace it with</returns>
public virtual ODataPayloadElement Visit(EmptyUntypedCollection payloadElement)
{
ExceptionUtilities.CheckArgumentNotNull(payloadElement, "payloadElement");
if (this.alwaysReplace)
{
return(payloadElement.ReplaceWith(new EmptyUntypedCollection()));
}
return(payloadElement);
}
/// <summary>
/// Replaces the empty collection property with a more specific type
/// </summary>
/// <param name="payloadElement">The payload element to potentially replace</param>
/// <returns>The original element or a copy to replace it with</returns>
public override ODataPayloadElement Visit(EmptyUntypedCollection payloadElement)
{
ExceptionUtilities.CheckArgumentNotNull(payloadElement, "payloadElement");
var expectedTypeAnnotatation = payloadElement.Annotations.OfType <ExpectedPayloadElementTypeAnnotation>().SingleOrDefault();
if (expectedTypeAnnotatation != null && expectedTypeAnnotatation.ExpectedType == ODataPayloadElementType.LinkCollection)
{
var linkCollection = new LinkCollection();
linkCollection.InlineCount = payloadElement.InlineCount;
linkCollection.NextLink = payloadElement.NextLink;
return(payloadElement.ReplaceWith(linkCollection));
}
var entitySetAnnotation = payloadElement.Annotations.OfType <EntitySetAnnotation>().SingleOrDefault();
if (entitySetAnnotation != null)
{
var entitySet = new EntitySetInstance();
entitySet.InlineCount = payloadElement.InlineCount;
entitySet.NextLink = payloadElement.NextLink;
return(payloadElement.ReplaceWith(entitySet));
}
var functionAnnotation = payloadElement.Annotations.OfType <FunctionAnnotation>().SingleOrDefault();
if (functionAnnotation != null && expectedTypeAnnotatation != null)
{
if (expectedTypeAnnotatation.ExpectedType == ODataPayloadElementType.ComplexInstanceCollection)
{
return(payloadElement.ReplaceWith(new ComplexInstanceCollection()));
}
if (expectedTypeAnnotatation.ExpectedType == ODataPayloadElementType.PrimitiveCollection)
{
return(payloadElement.ReplaceWith(new PrimitiveCollection()));
}
}
return(base.Visit(payloadElement));
}
/// <summary>
/// Replaces the empty collection property with a more specific type
/// </summary>
/// <param name="payloadElement">The payload element to potentially replace</param>
/// <returns>The original element or a copy to replace it with</returns>
public override ODataPayloadElement Visit(EmptyUntypedCollection payloadElement)
{
ExceptionUtilities.CheckArgumentNotNull(payloadElement, "payloadElement");
var expectedTypeAnnotatation = payloadElement.Annotations.OfType<ExpectedPayloadElementTypeAnnotation>().SingleOrDefault();
if (expectedTypeAnnotatation != null && expectedTypeAnnotatation.ExpectedType == ODataPayloadElementType.LinkCollection)
{
var linkCollection = new LinkCollection();
linkCollection.InlineCount = payloadElement.InlineCount;
linkCollection.NextLink = payloadElement.NextLink;
return payloadElement.ReplaceWith(linkCollection);
}
var entitySetAnnotation = payloadElement.Annotations.OfType<EntitySetAnnotation>().SingleOrDefault();
if (entitySetAnnotation != null)
{
var entitySet = new EntitySetInstance();
entitySet.InlineCount = payloadElement.InlineCount;
entitySet.NextLink = payloadElement.NextLink;
return payloadElement.ReplaceWith(entitySet);
}
var functionAnnotation = payloadElement.Annotations.OfType<FunctionAnnotation>().SingleOrDefault();
if (functionAnnotation != null && expectedTypeAnnotatation != null)
{
if (expectedTypeAnnotatation.ExpectedType == ODataPayloadElementType.ComplexInstanceCollection)
{
return payloadElement.ReplaceWith(new ComplexInstanceCollection());
}
if (expectedTypeAnnotatation.ExpectedType == ODataPayloadElementType.PrimitiveCollection)
{
return payloadElement.ReplaceWith(new PrimitiveCollection());
}
}
return base.Visit(payloadElement);
}