public AggregatorPlugInMultiParam(
AggregationForgeFactoryPlugin factory,
int col,
CodegenCtor rowCtor,
CodegenMemberCol membersColumnized,
CodegenClassScope classScope,
AggregationFunctionModeMultiParam mode)
{
this.mode = mode;
var injectionStrategy =
(InjectionStrategyClassNewInstance) mode.InjectionStrategyAggregationFunctionFactory;
var factoryField = classScope.AddDefaultFieldUnshared<AggregationFunctionFactory>(
true,
injectionStrategy.GetInitializationExpression(classScope));
plugin = membersColumnized.AddMember(col, typeof(AggregationFunction), "plugin");
rowCtor.Block.AssignRef(plugin, ExprDotMethod(factoryField, "NewAggregator", ConstantNull()));
}
public override void InitMethodForge(
int col,
CodegenCtor rowCtor,
CodegenMemberCol membersColumnized,
CodegenClassScope classScope)
{
if (mode is AggregationFunctionModeManaged)
{
AggregationFunctionModeManaged singleValue = (AggregationFunctionModeManaged)mode;
if (parent.PositionalParams.Length == 0)
{
throw new ArgumentException(typeof(AggregationFunctionModeManaged).Name + " requires at least one positional parameter");
}
Type distinctType = !parent.IsDistinct ? null : aggregatedValueType;
aggregator = new AggregatorPlugInManaged(
this,
col,
rowCtor,
membersColumnized,
classScope,
distinctType,
distinctSerde,
parent.ChildNodes.Length > 1,
parent.OptionalFilter,
singleValue);
}
else if (mode is AggregationFunctionModeMultiParam)
{
AggregationFunctionModeMultiParam multiParam = (AggregationFunctionModeMultiParam)mode;
aggregator = new AggregatorPlugInMultiParam(this, col, rowCtor, membersColumnized, classScope, multiParam);
}
else if (mode is AggregationFunctionModeCodeGenerated)
{
AggregationFunctionModeCodeGenerated codeGenerated = (AggregationFunctionModeCodeGenerated)mode;
aggregator = codeGenerated.AggregatorMethodFactory.GetAggregatorMethod(
new AggregatorMethodFactoryContext(col, rowCtor, membersColumnized, classScope));
}
else
{
throw new IllegalStateException("Received an unrecognized value for mode, the value is " + mode);
}
}
