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ProcessTake.cs
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ProcessTake.cs
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using System.Linq.Expressions;
using NHibernate.Engine.Query;
using NHibernate.Param;
using Remotion.Linq.Clauses.ResultOperators;
namespace NHibernate.Linq.Visitors.ResultOperatorProcessors
{
public class ProcessTake : IResultOperatorProcessor<TakeResultOperator>
{
#region IResultOperatorProcessor<TakeResultOperator> Members
public void Process(TakeResultOperator resultOperator, QueryModelVisitor queryModelVisitor, IntermediateHqlTree tree)
{
VisitorParameters parameters = queryModelVisitor.VisitorParameters;
NamedParameter namedParameter;
if (parameters.ConstantToParameterMap.TryGetValue(resultOperator.Count as ConstantExpression, out namedParameter))
{
parameters.RequiredHqlParameters.Add(new NamedParameterDescriptor(namedParameter.Name, null, false));
tree.AddTakeClause(tree.TreeBuilder.Parameter(namedParameter.Name));
}
else
{
tree.AddTakeClause(tree.TreeBuilder.Constant(resultOperator.GetConstantCount()));
}
}
#endregion
}
}