private AggregateExpressionBase BindAggregateExpressionToken(AggregateTokenBase aggregateToken)
{
switch (aggregateToken.Kind)
{
case QueryTokenKind.AggregateExpression:
{
AggregateExpressionToken token = aggregateToken as AggregateExpressionToken;
SingleValueNode expression = this.bindMethod(token.Expression) as SingleValueNode;
IEdmTypeReference typeReference = CreateAggregateExpressionTypeReference(expression, token.MethodDefinition);
// TODO: Determine source
return(new AggregateExpression(expression, token.MethodDefinition, token.Alias, typeReference));
}
case QueryTokenKind.EntitySetAggregateExpression:
{
EntitySetAggregateToken token = aggregateToken as EntitySetAggregateToken;
QueryNode boundPath = this.bindMethod(token.EntitySet);
state.InEntitySetAggregation = true;
IEnumerable <AggregateExpressionBase> children = token.Expressions.Select(x => BindAggregateExpressionToken(x)).ToList();
state.InEntitySetAggregation = false;
return(new EntitySetAggregateExpression((CollectionNavigationNode)boundPath, children));
}
default:
throw new ODataException(ODataErrorStrings.ApplyBinder_UnsupportedAggregateKind(aggregateToken.Kind));
}
}
private AggregateExpression BindAggregateExpressionToken(AggregateExpressionToken token)
{
var expression = this.bindMethod(token.Expression) as SingleValueNode;
if (expression == null)
{
throw new ODataException(ODataErrorStrings.ApplyBinder_AggregateExpressionNotSingleValue(token.Expression));
}
var typeReference = CreateAggregateExpressionTypeReference(expression, token.MethodDefinition);
// TODO: Determine source
return(new AggregateExpression(expression, token.MethodDefinition, token.Alias, typeReference));
}
