public TResult[] GetNextPage()
{
TResult[] result = null;
QueryFilter pagingFilter = null;
bool retrievedAllData = true;
if (!this.valid)
{
throw new InvalidOperationException("GetNextPage() called after reader was marked invalid");
}
if (this.RetrievedAllData)
{
throw new InvalidOperationException(DirectoryStrings.ExceptionPagedReaderIsSingleUse);
}
try
{
pagingFilter = PagingHelper.GetPagingQueryFilter(this.filter, this.cookie);
result = this.dataProvider.FindPaged <TResult>(pagingFilter, this.rootId, true, this.sortBy, this.pageSize).ToArray <TResult>();
}
catch (PermanentDALException)
{
this.valid = false;
this.RetrievedAllData = true;
throw;
}
this.cookie = PagingHelper.GetProcessedCookie(pagingFilter, out retrievedAllData);
this.RetrievedAllData = retrievedAllData;
this.PagesReturned++;
return(result);
}
public IEnumerable <DataBlob> GetBlob(DataBlobVersion blobVersion, bool queryPrimaryOnly, ref string pageCookie, out bool complete, int pageSize = 10)
{
DataBlobSession.ValidateDataBlobVersionCommon(blobVersion, true);
QueryFilter baseQueryFilter = QueryFilter.AndTogether(new QueryFilter[]
{
new ComparisonFilter(ComparisonOperator.Equal, DataBlobCommonSchema.DataTypeIdProperty, blobVersion.DataTypeId),
new ComparisonFilter(ComparisonOperator.Equal, DataBlobCommonSchema.MajorVersionProperty, blobVersion.Version.Major),
new ComparisonFilter(ComparisonOperator.Equal, DataBlobCommonSchema.MinorVersionProperty, blobVersion.Version.Minor),
new ComparisonFilter(ComparisonOperator.Equal, DataBlobCommonSchema.BuildNumberProperty, blobVersion.Version.Build),
new ComparisonFilter(ComparisonOperator.Equal, DataBlobCommonSchema.RevisionNumberProperty, blobVersion.Version.Revision),
new ComparisonFilter(ComparisonOperator.Equal, DataBlobCommonSchema.BlobIdProperty, blobVersion.BlobId),
new ComparisonFilter(ComparisonOperator.Equal, DataBlobCommonSchema.PrimaryOnlyProperty, queryPrimaryOnly)
});
QueryFilter pagingQueryFilter = PagingHelper.GetPagingQueryFilter(baseQueryFilter, pageCookie);
IEnumerable <DataBlob> result = this.dataProvider.FindPaged <DataBlob>(pagingQueryFilter, null, false, null, pageSize).Cast <DataBlob>().Cache <DataBlob>();
pageCookie = PagingHelper.GetProcessedCookie(pagingQueryFilter, out complete);
return(result);
}