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BreadthFirstRolePlayerFirstElementWalker Class

Visits the elements in the model, applying an action to each one. The action can update or accumulate results from the elements that are visited.

Inheritance Hierarchy

System.Object
  Microsoft.VisualStudio.Modeling.ElementWalker
    Microsoft.VisualStudio.Modeling.BreadthFirstRolePlayerFirstElementWalker
      Microsoft.VisualStudio.Modeling.ElementClosureWalker

Namespace:  Microsoft.VisualStudio.Modeling
Assembly:  Microsoft.VisualStudio.Modeling.Sdk.12.0 (in Microsoft.VisualStudio.Modeling.Sdk.12.0.dll)

Syntax

'Declaration
Public Class BreadthFirstRolePlayerFirstElementWalker _
    Inherits ElementWalker
public class BreadthFirstRolePlayerFirstElementWalker : ElementWalker
public ref class BreadthFirstRolePlayerFirstElementWalker : public ElementWalker
type BreadthFirstRolePlayerFirstElementWalker =  
    class 
        inherit ElementWalker 
    end
public class BreadthFirstRolePlayerFirstElementWalker extends ElementWalker

The BreadthFirstRolePlayerFirstElementWalker type exposes the following members.

Constructors

  Name Description
Public method BreadthFirstRolePlayerFirstElementWalker(IElementVisitor, IElementVisitorFilter) Initializes a new instance of the BreadthFirstRolePlayerFirstElementWalker class.
Public method BreadthFirstRolePlayerFirstElementWalker(IElementVisitor, IElementVisitorFilter, Boolean, Boolean) Initializes a new instance of the BreadthFirstRolePlayerFirstElementWalker class.

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Properties

  Name Description
Public property BypassDemandLoading Allows the walker to bypass demand loading while traversing (Inherited from ElementWalker.)
Public property Filter Get or set the IElementVisitorFilter for use during traversal (Inherited from ElementWalker.)
Public property IncludeLinks Returns true if the walker will include element links in calls to the visitor function (Inherited from ElementWalker.)
Public property InternalElementList Get the internal list of elements that will be visited (Inherited from ElementWalker.)
Public property Store Get the internal list of elements that will be visited (Inherited from ElementWalker.)
Public property Visitor Get or set the IElementVisitor for use during traversal (Inherited from ElementWalker.)

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Methods

  Name Description
Public method DoTraverse Visit the elements defined by the visitor and filter. (Overrides ElementWalker.DoTraverse(ModelElement).)
Public method Equals Determines whether the specified object is equal to the current object. (Inherited from Object.)
Protected method Finalize Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object.)
Public method GetHashCode Serves as the default hash function. (Inherited from Object.)
Public method GetType Gets the Type of the current instance. (Inherited from Object.)
Protected method MarkForRemovalFromInternalElementList Mark an element for removal from the InternalElementList. We mark first and remove later at the end so that the indices remain valid. When marking elements as visited, we store an index in the hashtable which tells us the order that the element was visited in. If the elements were put into the InternalElementList in that order, we can find the element easily using the index. If not a linear search will be used to find the element. (Inherited from ElementWalker.)
Protected method MarkVisited Mark an element as having been already visited (Inherited from ElementWalker.)
Protected method MemberwiseClone Creates a shallow copy of the current Object. (Inherited from Object.)
Protected method RemoveMarkedElements Removes the elements that are marked for removal. Call this at the end of the traversal so that the indices in alreadyVisited remain valid. (Inherited from ElementWalker.)
Public method Reset Reset the visitor so that it can start traversing again. This is necessary to clear out the internal list of previously visited elements. (Inherited from ElementWalker.)
Protected method ShouldVisitLinkAgain True if the link has been visited before the currentElement (one of its roleplayers) was visited. (Inherited from ElementWalker.)
Public method ToString Returns a string that represents the current object. (Inherited from Object.)
Public method Traverse(ModelElement) Traverse the model starting at the specified starting element. (Inherited from ElementWalker.)
Public method Traverse(ICollection<ModelElement>) Traverse the model starting at the specified starting elements. (Inherited from ElementWalker.)
Public method Visited determines if the given element has been visited or not (Inherited from ElementWalker.)

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Remarks

Breadth-first traversals start from an element or a group of elements.

This walker visits the role-players of a relationship before the relationship is visited.

Thread Safety

Any public static (Shared in Visual Basic) members of this type are thread safe. Any instance members are not guaranteed to be thread safe.

See Also

Reference

Microsoft.VisualStudio.Modeling Namespace