/// <summary>
/// Replaces the null property instance 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(NullPropertyInstance payloadElement)
{
ExceptionUtilities.CheckArgumentNotNull(payloadElement, "payloadElement");
var memberPropertyAnnotation = payloadElement.Annotations.OfType <MemberPropertyAnnotation>().SingleOrDefault();
if (memberPropertyAnnotation != null)
{
var memberProperty = memberPropertyAnnotation.Property;
ExceptionUtilities.CheckObjectNotNull(memberProperty, "Member property annotation was null");
var primitiveType = memberProperty.PropertyType as PrimitiveDataType;
if (primitiveType != null)
{
return(payloadElement.ReplaceWith(new PrimitiveProperty(payloadElement.Name, payloadElement.FullTypeName, null)));
}
var complexType = memberProperty.PropertyType as ComplexDataType;
if (complexType != null)
{
return(payloadElement.ReplaceWith(new ComplexProperty(payloadElement.Name, new ComplexInstance(payloadElement.FullTypeName, true))));
}
var collectionType = memberProperty.PropertyType as CollectionDataType;
ExceptionUtilities.CheckObjectNotNull(collectionType, "Property type was not primitive, complex, or collection");
primitiveType = collectionType.ElementDataType as PrimitiveDataType;
if (primitiveType != null)
{
return(payloadElement.ReplaceWith(new PrimitiveMultiValueProperty(payloadElement.Name, new PrimitiveMultiValue(payloadElement.FullTypeName, true))));
}
complexType = collectionType.ElementDataType as ComplexDataType;
ExceptionUtilities.CheckObjectNotNull(complexType, "Collection element type was not primitive or complex");
return(payloadElement.ReplaceWith(new ComplexMultiValueProperty(payloadElement.Name, new ComplexMultiValue(payloadElement.FullTypeName, true))));
}
var navigationPropertyAnnotation = payloadElement.Annotations.OfType <NavigationPropertyAnnotation>().SingleOrDefault();
if (navigationPropertyAnnotation == null)
{
return(payloadElement);
}
return(payloadElement.ReplaceWith(new NavigationPropertyInstance(payloadElement.Name, new ExpandedLink())));
}
/// <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(NullPropertyInstance payloadElement)
{
ExceptionUtilities.CheckArgumentNotNull(payloadElement, "payloadElement");
if (this.alwaysReplace)
{
return(payloadElement.ReplaceWith(new NullPropertyInstance(payloadElement.Name, payloadElement.FullTypeName)));
}
return(payloadElement);
}
/// <summary>
/// Replaces the null property instance 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(NullPropertyInstance payloadElement)
{
ExceptionUtilities.CheckArgumentNotNull(payloadElement, "payloadElement");
var memberPropertyAnnotation = payloadElement.Annotations.OfType<MemberPropertyAnnotation>().SingleOrDefault();
if (memberPropertyAnnotation != null)
{
var memberProperty = memberPropertyAnnotation.Property;
ExceptionUtilities.CheckObjectNotNull(memberProperty, "Member property annotation was null");
var primitiveType = memberProperty.PropertyType as PrimitiveDataType;
if (primitiveType != null)
{
return payloadElement.ReplaceWith(new PrimitiveProperty(payloadElement.Name, payloadElement.FullTypeName, null));
}
var complexType = memberProperty.PropertyType as ComplexDataType;
if (complexType != null)
{
return payloadElement.ReplaceWith(new ComplexProperty(payloadElement.Name, new ComplexInstance(payloadElement.FullTypeName, true)));
}
var collectionType = memberProperty.PropertyType as CollectionDataType;
ExceptionUtilities.CheckObjectNotNull(collectionType, "Property type was not primitive, complex, or collection");
primitiveType = collectionType.ElementDataType as PrimitiveDataType;
if (primitiveType != null)
{
return payloadElement.ReplaceWith(new PrimitiveMultiValueProperty(payloadElement.Name, new PrimitiveMultiValue(payloadElement.FullTypeName, true)));
}
complexType = collectionType.ElementDataType as ComplexDataType;
ExceptionUtilities.CheckObjectNotNull(complexType, "Collection element type was not primitive or complex");
return payloadElement.ReplaceWith(new ComplexMultiValueProperty(payloadElement.Name, new ComplexMultiValue(payloadElement.FullTypeName, true)));
}
var navigationPropertyAnnotation = payloadElement.Annotations.OfType<NavigationPropertyAnnotation>().SingleOrDefault();
if (navigationPropertyAnnotation == null)
{
return payloadElement;
}
return payloadElement.ReplaceWith(new NavigationPropertyInstance(payloadElement.Name, new ExpandedLink()));
}
