private static string SnippetDefaultFilterSaveOnRecompute(KeepSynchronizedInfo info)
{
return string.Format(@"
filterSave = filterSave ?? FilterSaveKeepSynchronizedOnChangedItems_{3}_{4};",
info.EntityComputedFrom.Target.Module.Name, info.EntityComputedFrom.Target.Name, info.FilterSaveExpression,
info.EntityComputedFrom.Source.Module.Name, info.EntityComputedFrom.Source.Name);
}
private static string FilterSaveFunction(KeepSynchronizedInfo info)
{
if (!string.IsNullOrWhiteSpace(info.FilterSaveExpression))
return string.Format(
@" private static readonly Func<IEnumerable<{0}.{1}>, Common.DomRepository, IEnumerable<{0}.{1}>> _filterSaveKeepSynchronizedOnChangedItems_{3}_{4} =
{2};
public IEnumerable<{0}.{1}> FilterSaveKeepSynchronizedOnChangedItems_{3}_{4}(IEnumerable<{0}.{1}> items)
{{
return _filterSaveKeepSynchronizedOnChangedItems_{3}_{4}(items, _domRepository);
}}
",
info.EntityComputedFrom.Target.Module.Name, info.EntityComputedFrom.Target.Name, info.FilterSaveExpression,
info.EntityComputedFrom.Source.Module.Name, info.EntityComputedFrom.Source.Name);
else
return string.Format(
@" public IEnumerable<{0}.{1}> FilterSaveKeepSynchronizedOnChangedItems_{3}_{4}(IEnumerable<{0}.{1}> items)
{{
return items;
}}
",
info.EntityComputedFrom.Target.Module.Name, info.EntityComputedFrom.Target.Name, info.FilterSaveExpression,
info.EntityComputedFrom.Source.Module.Name, info.EntityComputedFrom.Source.Name);
}
private static string KeepSynchronizedMetadataSnippet(KeepSynchronizedInfo info)
{
return string.Format(
@"new Common.KeepSynchronizedMetadata {{ Target = {0}, Source = {1}, Context = {2} }},
",
CsUtility.QuotedString(info.EntityComputedFrom.Target.GetKeyProperties()),
CsUtility.QuotedString(info.EntityComputedFrom.Source.GetKeyProperties()),
CsUtility.QuotedString(GetKeepSynchronizedContext(info)));
}
/// <summary>
/// The Context property serves as cache-invalidation mechanism.
/// When the context is changed in the new version of the application,
/// then the old persisted data should be recomputed on deployment.
/// This does not cover all situations when the persisted data should be recomputed
/// on deployment, but at least handles some obvious ones.
/// </summary>
private static string GetKeepSynchronizedContext(KeepSynchronizedInfo info)
{
return info.EntityComputedFrom.Source.GetFullDescription();
}