public AIRegistrySubqueryEntry(
AIRegistrySubselectLookup lookupStrategies,
AIRegistryAggregation aggregationServices,
AIRegistryPriorEvalStrategy priorEvalStrategies,
AIRegistryPreviousGetterStrategy previousGetterStrategies)
{
LookupStrategies = lookupStrategies;
AggregationServices = aggregationServices;
PriorEvalStrategies = priorEvalStrategies;
PreviousGetterStrategies = previousGetterStrategies;
}
public static StatementAIResourceRegistry AllocateRegistries(
AIRegistryRequirements registryRequirements,
AIRegistryFactory factory)
{
AIRegistryPriorEvalStrategy[] priorEvalStrategies = null;
if (registryRequirements.PriorFlagsPerStream != null) {
bool[] priorFlagPerStream = registryRequirements.PriorFlagsPerStream;
priorEvalStrategies = new AIRegistryPriorEvalStrategy[priorFlagPerStream.Length];
for (var i = 0; i < priorEvalStrategies.Length; i++) {
if (priorFlagPerStream[i]) {
priorEvalStrategies[i] = factory.MakePrior();
}
}
}
AIRegistryPreviousGetterStrategy[] previousGetterStrategies = null;
if (registryRequirements.PreviousFlagsPerStream != null) {
bool[] previousFlagPerStream = registryRequirements.PreviousFlagsPerStream;
previousGetterStrategies = new AIRegistryPreviousGetterStrategy[previousFlagPerStream.Length];
for (var i = 0; i < previousGetterStrategies.Length; i++) {
if (previousFlagPerStream[i]) {
previousGetterStrategies[i] = factory.MakePrevious();
}
}
}
IDictionary<int, AIRegistrySubqueryEntry> subselects = null;
if (registryRequirements.Subqueries != null) {
AIRegistryRequirementSubquery[] requirements = registryRequirements.Subqueries;
subselects = new Dictionary<int, AIRegistrySubqueryEntry>();
for (var i = 0; i < requirements.Length; i++) {
var lookup = factory.MakeSubqueryLookup(requirements[i].LookupStrategyDesc);
var aggregation = requirements[i].HasAggregation ? factory.MakeAggregation() : null;
var prior = requirements[i].HasPrior ? factory.MakePrior() : null;
var prev = requirements[i].HasPrev ? factory.MakePrevious() : null;
subselects.Put(i, new AIRegistrySubqueryEntry(lookup, aggregation, prior, prev));
}
}
IDictionary<int, AIRegistryTableAccess> tableAccesses = null;
if (registryRequirements.TableAccessCount > 0) {
tableAccesses = new Dictionary<int, AIRegistryTableAccess>();
for (var i = 0; i < registryRequirements.TableAccessCount; i++) {
var strategy = factory.MakeTableAccess();
tableAccesses.Put(i, strategy);
}
}
AIRegistryRowRecogPreviousStrategy rowRecogPreviousStrategy = null;
if (registryRequirements.IsRowRecogWithPrevious) {
rowRecogPreviousStrategy = factory.MakeRowRecogPreviousStrategy();
}
return new StatementAIResourceRegistry(
factory.MakeAggregation(),
priorEvalStrategies,
subselects,
tableAccesses,
previousGetterStrategies,
rowRecogPreviousStrategy);
}