/// <summary>
/// Call this method to initialize the environment to support server-driven paging.
/// </summary>
/// <param name="context">The values of the Prefer HTTP header.</param>
public void InitializeServerDrivenPaging(PreferenceContext context)
{
if (context == null)
{
throw Utility.BuildException(HttpStatusCode.InternalServerError);
}
if (this.Target.TypeKind == EdmTypeKind.Collection && this.Target.ElementTypeKind == EdmTypeKind.Entity)
{
// If the current request contains odata.maxpagesize preference
if (context.MaxPageSize.HasValue)
{
var clientSize = context.MaxPageSize.Value;
// The client might set odata.maxpagesize as zero or negative
if (clientSize < 1)
{
clientSize = ServiceConstants.DefaultPageSize;
}
this.appliedPageSize = (clientSize > ServiceConstants.DefaultPageSize) ? ServiceConstants.DefaultPageSize : clientSize;
}
else
{
this.appliedPageSize = ServiceConstants.DefaultPageSize;
}
}
}
/// <summary>
/// Call this method to detect whether the current request need to track changes.
/// </summary>
/// <param name="context">The values of the Prefer HTTP header.</param>
public void InitializeTrackingChanges(PreferenceContext context)
{
if (context == null)
{
throw Utility.BuildException(HttpStatusCode.InternalServerError);
}
this.TrackingChanges = context.TrackingChanges || this.skipToken.TrackingChanges;
}
/// <summary>
/// Call this method to detect whether the current request need to track changes.
/// </summary>
/// <param name="context">The values of the Prefer HTTP header.</param>
public void InitializeTrackingChanges(PreferenceContext context)
{
if (context == null) throw Utility.BuildException(HttpStatusCode.InternalServerError);
this.TrackingChanges = context.TrackingChanges || this.skipToken.TrackingChanges;
}
/// <summary>
/// Call this method to initialize the environment to support server-driven paging.
/// </summary>
/// <param name="context">The values of the Prefer HTTP header.</param>
public void InitializeServerDrivenPaging(PreferenceContext context)
{
if (context == null) throw Utility.BuildException(HttpStatusCode.InternalServerError);
if (this.Target.TypeKind == EdmTypeKind.Collection && this.Target.ElementTypeKind == EdmTypeKind.Entity)
{
// If the current request contains odata.maxpagesize preference
if (context.MaxPageSize.HasValue)
{
var clientSize = context.MaxPageSize.Value;
// The client might set odata.maxpagesize as zero or negative
if (clientSize < 1)
{
clientSize = ServiceConstants.DefaultPageSize;
}
this.appliedPageSize = (clientSize > ServiceConstants.DefaultPageSize) ? ServiceConstants.DefaultPageSize : clientSize;
}
else
{
this.appliedPageSize = ServiceConstants.DefaultPageSize;
}
}
}
