public Subquery PersistenceParamMap(IMapping mapToUse, object fromObject)
{
// TODO: add mapping direction to all param functions, dont' assume outbound
MappingContext context = mapToUse.CreateContext(this.PersistenceAction.GetAdapter(PersistenceAdapterPurpose.Parameters, MappingDirection.Outbound), this);
mapToUse.Apply(context);
return(this);
}
void IMapping.InnerApply(MappingContext c)
{
var context = (MappingContext <T>)c;
// .......................
// GET ALL MAPPINGS
List <IMapping> mappingsToApply = null;
foreach (IMapping mapping in ((IMapping)this).GetAllMappings(includeBase: true))
{
if (mappingsToApply == null)
{
mappingsToApply = new List <IMapping>();
}
mappingsToApply.Add(mapping);
}
// .......................
// APPLY CHILD MAPPINGS
Dictionary <IEntityProperty, object> propertyValues = null;
bool hasChildMappings = false;
// Apply current mappings
for (int i = 0; i < mappingsToApply.Count; i++)
{
IMapping mapping = mappingsToApply[i];
// Ignore subquery mappings that aren't the current mapping
if (mapping is ISubqueryMapping && context.CurrentSubquery.Mapping != mapping)
{
continue;
}
MappingContext currentContext = mapping is IChildMapping?
mapping.CreateContext(context) :
context;
mapping.Apply(currentContext);
if (context.DoBreak)
{
break;
}
if (mapping is IChildMapping)
{
// If a target has been specified, save it
if (currentContext.IsTargetSet)
{
hasChildMappings = true;
if (mapping is IPropertyMapping)
{
if (propertyValues == null)
{
propertyValues = new Dictionary <IEntityProperty, object>();
}
var propertyMapping = (IPropertyMapping)mapping;
propertyValues.Add(propertyMapping.Property, currentContext.Target);
}
else if (mapping is IVariableMapping)
{
var variableMapping = (IVariableMapping)mapping;
context.SetVariable(variableMapping.Variable, currentContext.Target);
}
}
}
// There might be derived mappings at this point, find them
if (i == mappingsToApply.Count - 1 && context.TargetType != null)
{
IEntityDefinition definition = this.EntitySpace.GetDefinition(context.TargetType);
if (definition != null)
{
// TODO: better way to indicate which derived mapping to use - possibly by name
IMapping derived = null;
foreach (IMapping d in definition.Mappings.Where(m => m.BaseMapping == this))
{
derived = d;
break;
}
// Get all inherit
if (derived != null)
{
mappingsToApply.AddRange(derived.GetAllMappings(includeBase: true, untilBase: typeof(T)));
}
}
}
}
// .......................
// GET FROM CACHE
bool isEntity = this.EntitySpace.GetDefinition <T>() != null;
bool shouldCache = isEntity && this.CacheIdentity != null && propertyValues != null && this.CacheIdentity.HasValidValues(propertyValues);
if (shouldCache)
{
Identity cacheId = this.CacheIdentity.IdentityFromValues(propertyValues);
object val = context.Cache.Get <T>(cacheId);
if (val != null)
{
// Update cache
context.Target = (T)val;
context.Cache.Update(this.CacheIdentity, propertyValues);
shouldCache = false;
}
}
// .......................
// INSTANTIATION
// Instantiate target if it hasn't been specifically applied and there are sub mappings that have executed
if (!context.IsTargetSet && hasChildMappings)
{
// Instantiate a new target
context.Target = context.TargetType != null ?
(T)Activator.CreateInstance(context.TargetType) :
Activator.CreateInstance <T>();
}
// .......................
// PUT IN CACHE
if (context.IsTargetSet && propertyValues != null)
{
// Apply properties
foreach (var propVal in propertyValues)
{
propVal.Key.SetValue(context.Target, propVal.Value);
}
// Add to cache
if (shouldCache)
{
context.Cache.Put <T>(this.CacheIdentity, context.Target, propertyValues.Keys.ToArray());
}
}
}
