public virtual Expression <Func <ValueBuffer, object> > CreateMaterializer(
IEntityType entityType,
FindExpression findExpression,
Func <IProperty, FindExpression, int> projectionAdder)
{
Check.NotNull(entityType, nameof(entityType));
Check.NotNull(findExpression, nameof(findExpression));
Check.NotNull(projectionAdder, nameof(projectionAdder));
var valueBufferParameter
= Expression.Parameter(typeof(ValueBuffer), "valueBuffer");
var indexMap = new int[entityType.PropertyCount()];
var propertyIndex = 0;
foreach (var property in entityType.GetProperties())
{
indexMap[propertyIndex++]
= projectionAdder(property, findExpression);
}
var materializer
= _entityMaterializerSource
.CreateMaterializeExpression(
entityType, valueBufferParameter, indexMap);
return(Expression.Lambda <Func <ValueBuffer, object> >(materializer, valueBufferParameter));
}
private Shaper CreateShaper(Type elementType, IEntityType entityType, FindExpression findExpression)
{
Shaper shaper;
var materializer
= _materializerFactory
.CreateMaterializer(
entityType,
findExpression,
(p, se) =>
se.AddToProjection(
_annotationsProvider.For(p).FieldName,
p)
).Compile();
shaper
= (Shaper)_createEntityShaperMethodInfo.MakeGenericMethod(elementType)
.Invoke(null, new object[]
{
entityType.DisplayName(),
QueryModelVisitor.QueryCompilationContext.IsTrackingQuery,
entityType.FindPrimaryKey(),
materializer
});
return(shaper);
}
public Expression VisitFind(FindExpression findExpression)
{
VisitCollection(findExpression.Collection);
if (findExpression.Projection.Any())
{
VisitProjection(findExpression.Projection);
}
return(findExpression);
}
public Expression VisitFind([NotNull] FindExpression findExpression)
{
Check.NotNull(findExpression, nameof(findExpression));
VisitCollection(findExpression.Collection);
if (findExpression.Projection.Any())
{
VisitProjection(findExpression.Projection);
}
return(findExpression);
}
private void SmartSay()
{
InterpreterContext context = new InterpreterContext(CommandText, this);
string start = context.PartsOfMessage()[0];
Shell.Models.SmartShellExpressions.Expression expression = null;
if (start.ToLower() == "open")
{
expression = new OpenExpression();
}
else if (start.ToLower() == "copy")
{
expression = new CopyExpression();
}
else if (start.ToLower() == "delete")
{
expression = new DeleteExpression();
}
else if (start.ToLower() == "find")
{
expression = new FindExpression();
}
if (expression != null)
{
try
{ expression.Interpret(context); }
catch (Exception e) { MessageBox.Show(e.ToString()); }
if (expression.GetItemsToShow() != null)
{
Files = expression.GetItemsToShow();
}
}
else
{
MessageBox.Show("Invalid command");
}
try
{
Refresh();
}
catch { }
}
/// <summary>
/// Finds the script node by the specified expression at the specified category and its children.
/// </summary>
private static ScriptData FindScriptData(CategoryData category, FindExpression findExpression)
{
foreach (ScriptData scriptData in category.Items)
{
if (findExpression(scriptData))
{
return(scriptData);
}
if (scriptData is CategoryData)
{
ScriptData data = FindScriptData((CategoryData)scriptData, findExpression);
if (data != null)
{
return(data);
}
}
}
return(null);
}
public IBsonQueryGenerator Create(FindExpression findExpression) => new BsonQueryGenerator(_bsonCommandBuilderFactory, findExpression);
public BsonQueryGenerator(IBsonCommandBuilderFactory bsonCommandBuilderFactory,
FindExpression findExpression)
{
_bsonCommandBuilderFactory = bsonCommandBuilderFactory;
_findExpression = findExpression;
}
public IValueBufferFromBsonShaper Create(FindExpression findExpression) => new ValueBufferFromBsonShaper(findExpression);
public ValueBufferFromBsonShaper(FindExpression findExpression)
{
_findExpression = findExpression;
}
public ValueBufferFromBsonShaper([NotNull] FindExpression findExpression)
{
Check.NotNull(findExpression, nameof(findExpression));
_findExpression = findExpression;
}