Class TextEditVisitor


  • public class TextEditVisitor
    extends Object
    A visitor for text edits.

    For each different concrete text edit type T there is a method:

    • public boolean visit(T node) - Visits the given edit to perform some arbitrary operation. If true is returned, the given edit's child edits will be visited next; however, if false is returned, the given edit's child edits will not be visited. The default implementation provided by this class calls a generic method visitNode(TextEdit node). Subclasses may reimplement these method as needed.

    In addition, there are methods for visiting text edits in the abstract, regardless of node type:

    • public void preVisit(TextEdit edit) - Visits the given edit to perform some arbitrary operation. This method is invoked prior to the appropriate type-specific visit method. The default implementation of this method does nothing. Subclasses may reimplement this method as needed.
    • public void postVisit(TextEdit edit) - Visits the given edit to perform some arbitrary operation. This method is invoked after the appropriate type-specific endVisit method. The default implementation of this method does nothing. Subclasses may reimplement this method as needed.

    For edits with children, the child nodes are visited in increasing order.

    Since:
    3.0
    See Also:
    TextEdit.accept(TextEditVisitor)
    • Constructor Detail

      • TextEditVisitor

        public TextEditVisitor()
    • Method Detail

      • preVisit

        public void preVisit​(TextEdit edit)
        Visits the given text edit prior to the type-specific visit. (before visit).

        The default implementation does nothing. Subclasses may reimplement.

        Parameters:
        edit - the node to visit
      • postVisit

        public void postVisit​(TextEdit edit)
        Visits the given text edit following the type-specific visit (after endVisit).

        The default implementation does nothing. Subclasses may reimplement.

        Parameters:
        edit - the node to visit
      • visitNode

        public boolean visitNode​(TextEdit edit)
        Visits the given text edit. This method is called by default from type-specific visits. It is not called by an edit's accept method. The default implementation returns true.
        Parameters:
        edit - the node to visit
        Returns:
        If true is returned, the given node's child nodes will be visited next; however, if false is returned, the given node's child nodes will not be visited.
      • visit

        public boolean visit​(CopySourceEdit edit)
        Visits a CopySourceEdit instance.
        Parameters:
        edit - the node to visit
        Returns:
        If true is returned, the given node's child nodes will be visited next; however, if false is returned, the given node's child nodes will not be visited.
      • visit

        public boolean visit​(CopyTargetEdit edit)
        Visits a CopyTargetEdit instance.
        Parameters:
        edit - the node to visit
        Returns:
        If true is returned, the given node's child nodes will be visited next; however, if false is returned, the given node's child nodes will not be visited.
      • visit

        public boolean visit​(MoveSourceEdit edit)
        Visits a MoveSourceEdit instance.
        Parameters:
        edit - the node to visit
        Returns:
        If true is returned, the given node's child nodes will be visited next; however, if false is returned, the given node's child nodes will not be visited.
      • visit

        public boolean visit​(MoveTargetEdit edit)
        Visits a MoveTargetEdit instance.
        Parameters:
        edit - the node to visit
        Returns:
        If true is returned, the given node's child nodes will be visited next; however, if false is returned, the given node's child nodes will not be visited.
      • visit

        public boolean visit​(RangeMarker edit)
        Visits a RangeMarker instance.
        Parameters:
        edit - the node to visit
        Returns:
        If true is returned, the given node's child nodes will be visited next; however, if false is returned, the given node's child nodes will not be visited.
      • visit

        public boolean visit​(CopyingRangeMarker edit)
        Visits a CopyingRangeMarker instance.
        Parameters:
        edit - the node to visit
        Returns:
        If true is returned, the given node's child nodes will be visited next; however, if false is returned, the given node's child nodes will not be visited.
      • visit

        public boolean visit​(DeleteEdit edit)
        Visits a DeleteEdit instance.
        Parameters:
        edit - the node to visit
        Returns:
        If true is returned, the given node's child nodes will be visited next; however, if false is returned, the given node's child nodes will not be visited.
      • visit

        public boolean visit​(InsertEdit edit)
        Visits a InsertEdit instance.
        Parameters:
        edit - the node to visit
        Returns:
        If true is returned, the given node's child nodes will be visited next; however, if false is returned, the given node's child nodes will not be visited.
      • visit

        public boolean visit​(ReplaceEdit edit)
        Visits a ReplaceEdit instance.
        Parameters:
        edit - the node to visit
        Returns:
        If true is returned, the given node's child nodes will be visited next; however, if false is returned, the given node's child nodes will not be visited.
      • visit

        public boolean visit​(UndoEdit edit)
        Visits a UndoEdit instance.
        Parameters:
        edit - the node to visit
        Returns:
        If true is returned, the given node's child nodes will be visited next; however, if false is returned, the given node's child nodes will not be visited.
      • visit

        public boolean visit​(MultiTextEdit edit)
        Visits a MultiTextEdit instance.
        Parameters:
        edit - the node to visit
        Returns:
        If true is returned, the given node's child nodes will be visited next; however, if false is returned, the given node's child nodes will not be visited.