NonProjectionExpressionExtractor Class |
Specific expression handler which extracts non-projection expressions from the expression passed in, if there's no projection in the branch
currently traversed. This is necessary in complex join scenario's where a where or orderby expression in one side of the join could contain
another join and the where/orderby has to be moved upwards instead of being part of the side of a join and therefore has to be extracted from that
expression tree. The extracted expressions are stored in a single list to all be handled and merged with the expression containing the expression passed
in, and the expression the expressions are extracted from is stripped from these expressions.
Not all where expressions are extracted: If a GroupJoin's Right side or DefaultIfEmpty is seen, keep the where clauses.
Currently extracted expressions: WhereExpression, SortClauseExpression.
Inheritance HierarchySystemObject
SD.LLBLGen.Pro.LinqSupportClasses.ExpressionHandlersGenericExpressionHandler
SD.LLBLGen.Pro.LinqSupportClasses.ExpressionHandlersNonProjectionExpressionExtractor
SD.LLBLGen.Pro.LinqSupportClasses.ExpressionHandlersGenericExpressionHandler
SD.LLBLGen.Pro.LinqSupportClasses.ExpressionHandlersNonProjectionExpressionExtractor
Namespace: SD.LLBLGen.Pro.LinqSupportClasses.ExpressionHandlers
Assembly: SD.LLBLGen.Pro.ORMSupportClasses (in SD.LLBLGen.Pro.ORMSupportClasses.dll) Version: 5.5.0.0 (5.5.18.1019)
SyntaxThe NonProjectionExpressionExtractor type exposes the following members.
Constructors| Name | Description | |
|---|---|---|
 | NonProjectionExpressionExtractor |
Initializes a new instance of the NonProjectionExpressionExtractor class.
|
Properties| Name | Description | |
|---|---|---|
 | ExtractAllWhereClauses |
Gets or sets a value indicating whether [extract all where clauses]. If set to false (default), only the where clauses which are
NOT referred by (indirectly)a DefaultIfEmpty or rightside of a groupjoin are extracted (if enabled)
|
| ExtractedExpressions |
Gets the extracted expressions, if any.
|
| ExtractSortClauses |
Gets or sets a value indicating whether [extract sort clauses]. Default true
|
| ExtractWhereClauses |
Gets or sets a value indicating whether [extract where clauses]. Default true
|
 | FrameworkElementCreator |
Gets the framework element creator.
(Inherited from GenericExpressionHandler.) |
| FunctionMappings |
Gets the function mappings.
(Inherited from GenericExpressionHandler.) |
| GeneratedCodeElementCreator |
Gets the generated code element creator.
(Inherited from GenericExpressionHandler.) |
| SelectWithProjectionSeen |
Gets a value indicating whether [select with projection seen].
|
| StopAtFirstJoin |
Gets or sets a value indicating whether [stop at first join]. Default false
|
| TrackedMappings |
Gets the mappings of various objects defined during the process operations of the expression tree.
(Inherited from GenericExpressionHandler.) |
Methods| Name | Description | |
|---|---|---|
| Equals | Determines whether the specified object is equal to the current object. (Inherited from Object.) |
| ExtractExpressions |
Extracts the expressions, if any.
|
 | Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.) |
| FindFunctionMapping(MemberInfo) |
Finds the function mapping associated with the property specified.
(Inherited from GenericExpressionHandler.) |
| FindFunctionMapping(MethodInfo) |
Finds the function mapping associated with the method/function specified.
(Inherited from GenericExpressionHandler.) |
| FindFunctionMapping(String, Type, Int32) |
Finds the function mapping associated with the method/function specified.
(Inherited from GenericExpressionHandler.) |
| FindGroupJoinExpressionAsCopy |
Finds the group join expression using the alias of the right side. It then creates a copy of it (and its contents) so the caller can manipulate it.
(Inherited from GenericExpressionHandler.) |
| GetHashCode | Serves as the default hash function. (Inherited from Object.) |
| GetType | Gets the Type of the current instance. (Inherited from Object.) |
| HandleAggregateExpression |
Handles the aggregate expression.
(Inherited from GenericExpressionHandler.) |
| HandleAllAnyExpression |
Handles all any expression.
(Inherited from GenericExpressionHandler.) |
| HandleBinaryExpression |
Handles the binary expression.
(Inherited from GenericExpressionHandler.) |
| HandleBinaryExpressionArithmeticOrBitOperator |
Handles the binary expression with arithmetic or bit operator.
(Inherited from GenericExpressionHandler.) |
| HandleBinaryExpressionBooleanOperator |
Handles the binary expression with a boolean operator.
(Inherited from GenericExpressionHandler.) |
| HandleConditionalExpression |
Handles the conditional expression.
(Inherited from GenericExpressionHandler.) |
| HandleConstantExpression |
Handles the constant expression.
(Inherited from GenericExpressionHandler.) |
| HandleContainsExpression |
Handles the contains expression.
(Inherited from GenericExpressionHandler.) |
| HandleDbFunctionCallExpression |
Handles the db function call expression.
(Inherited from GenericExpressionHandler.) |
| HandleDefaultIfEmptyExpression |
Handles the default if empty expression.
(Overrides GenericExpressionHandlerHandleDefaultIfEmptyExpression(DefaultIfEmptyExpression).) |
| HandleElementInitializer |
Handles the element initializer.
(Inherited from GenericExpressionHandler.) |
| HandleElementInitializerList |
Handles the element initializer list.
(Inherited from GenericExpressionHandler.) |
| HandleEntityExpression |
Handles the entity expression.
(Inherited from GenericExpressionHandler.) |
| HandleEntityFieldExpression |
Handles the entity field expression.
(Inherited from GenericExpressionHandler.) |
| HandleExceptIntersectExpression |
Handles the except expression.
(Inherited from GenericExpressionHandler.) |
| HandleExcludeIncludeFieldsExpression |
Handles the exclude include fields expression.
(Inherited from GenericExpressionHandler.) |
| HandleExpression |
Handles the expression.
(Inherited from GenericExpressionHandler.) |
| HandleExpressionList |
Handles the expression list.
(Inherited from GenericExpressionHandler.) |
| HandleGroupByExpression |
Handles the group by expression.
(Inherited from GenericExpressionHandler.) |
| HandleGroupByKeyReferenceExpression |
Handles the group by key reference expression.
(Inherited from GenericExpressionHandler.) |
| HandleGroupJoinExpression |
Handles the groupjoin expression.
(Overrides GenericExpressionHandlerHandleGroupJoinExpression(GroupJoinExpression).) |
| HandleInClauseExpression |
Handles the in clause expression, which is an expression representing a call to Contains on a list of values.
(Inherited from GenericExpressionHandler.) |
| HandleInMemoryEvalCandidateExpression |
Handles the in memory eval candidate expression.
(Inherited from GenericExpressionHandler.) |
| HandleInvocationExpression |
Handles the invocation expression.
(Inherited from GenericExpressionHandler.) |
| HandleJoinExpression |
Handles the join expression.
(Overrides GenericExpressionHandlerHandleJoinExpression(JoinExpression).) |
| HandleJoinResultExpression |
Handles the JoinResult expression.
(Inherited from GenericExpressionHandler.) |
| HandleLambdaExpression |
Handles the lambda expression.
(Inherited from GenericExpressionHandler.) |
| HandleLikeExpression |
Handles the like expression.
(Inherited from GenericExpressionHandler.) |
| HandleLinqExpressionAsSetExpression |
Handles the LinqExpression as set expression.
(Inherited from GenericExpressionHandler.) |
| HandleListInitExpression |
Handles the list init expression.
(Inherited from GenericExpressionHandler.) |
| HandleLLBLGenProExpressionExpression |
Handles the LLBLGenProExpressionExpression.
(Inherited from GenericExpressionHandler.) |
| HandleMemberAssignment |
Handles the member assignment.
(Inherited from GenericExpressionHandler.) |
| HandleMemberBinding |
Handles the member binding.
(Inherited from GenericExpressionHandler.) |
| HandleMemberBindingList |
Handles the member binding list.
(Inherited from GenericExpressionHandler.) |
| HandleMemberExpression |
Handles the member expression.
(Inherited from GenericExpressionHandler.) |
| HandleMemberInitExpression |
Handles the member init expression.
(Inherited from GenericExpressionHandler.) |
| HandleMemberListBinding |
Handles the member list binding.
(Inherited from GenericExpressionHandler.) |
| HandleMemberMemberBinding |
Handles the member member binding.
(Inherited from GenericExpressionHandler.) |
| HandleMethodCallExpression |
Handles the method call expression.
(Inherited from GenericExpressionHandler.) |
| HandleNewArrayExpression |
Handles the new array expression.
(Inherited from GenericExpressionHandler.) |
| HandleNewExpression |
Handles the NewExpression expression
(Inherited from GenericExpressionHandler.) |
| HandleParameterExpression |
Handles the parameter expression.
(Inherited from GenericExpressionHandler.) |
| HandlePathEdgeExpression |
Handles the path edge expression.
(Inherited from GenericExpressionHandler.) |
| HandlePrefetchPathExpression |
Handles the prefetch path expression.
(Inherited from GenericExpressionHandler.) |
| HandleProjectionExpression |
Handles the projection expression
(Inherited from GenericExpressionHandler.) |
| HandleQueryExpression |
Handles the query expression.
(Inherited from GenericExpressionHandler.) |
| HandleSelectExpression |
Handles the select expression.
(Overrides GenericExpressionHandlerHandleSelectExpression(SelectExpression).) |
| HandleSetReferenceExpression |
Handles the set reference expression.
(Inherited from GenericExpressionHandler.) |
| HandleSortClauseExpression |
Handles the sort clause expression.
(Overrides GenericExpressionHandlerHandleSortClauseExpression(SortClauseExpression).) |
| HandleTypeBinaryExpression |
Handles the type binary expression.
(Inherited from GenericExpressionHandler.) |
| HandleTypedViewExpression |
Handles the typed view expression.
(Inherited from GenericExpressionHandler.) |
| HandleUnaryArrayLength |
Handles the length of the unary array.
(Inherited from GenericExpressionHandler.) |
| HandleUnaryConvertExpression |
Handles the unary convert expression.
(Inherited from GenericExpressionHandler.) |
| HandleUnaryExpression |
Handles the unary expression.
(Inherited from GenericExpressionHandler.) |
| HandleUnaryNotExpression |
Handles the unary expression of type 'Not'.
(Inherited from GenericExpressionHandler.) |
| HandleUnaryTypeAsExpression |
Handles the unary type as expression.
(Inherited from GenericExpressionHandler.) |
| HandleUnionList |
Handles the specified unionlist and its contained set expressions. Will return a new list if one or more set expressions changed after handling.
(Inherited from GenericExpressionHandler.) |
| HandleWhereExpression |
Handles the where expression.
(Overrides GenericExpressionHandlerHandleWhereExpression(WhereExpression).) |
| MakeSet |
Converts the expression passed in to a SetExpression, if it's not already a set.
(Inherited from GenericExpressionHandler.) |
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object.) |
| ToString | Returns a string that represents the current object. (Inherited from Object.) |
| TraceLine |
Traces the line.
(Inherited from GenericExpressionHandler.) |
| TraceScopeEnd |
Traces the scope end.
(Inherited from GenericExpressionHandler.) |
| TraceScopeStart |
Traces the scope start.
(Inherited from GenericExpressionHandler.) |
See Also