Interface VisitableExpression

All Known Subinterfaces:
AggregateExpression, Alias, Binary, Enumeration, Expression, LambdaRef, Literal, Member, Method, TypeLiteral, Unary

public interface VisitableExpression
Marks an expression node a visitable by an expression visitor
  • Method Details

    • accept

      Method accept(ExpressionVisitor) is called when traversing the expression tree. This method is invoked on each expression used as node in an expression tree. The implementations should behave as follows:
    • Call accept on all sub nodes and store the returned Objects which are of the generic type T
    • Call the appropriate method on the ExpressionVisitor instance and provide the stored return objects to that instance
    • Return the object which should be passed to the processing algorithm of the parent expression node

    • Parameters:
      visitor - Visitor object (implementing ExpressionVisitor) whose methods are called during traversing a expression node of the expression tree.
      Returns:
      Object of type T which should be passed to the processing algorithm of the parent expression node
      Throws:
      ExpressionVisitException - Exception occurred in the OData library while traversing the tree
      ODataApplicationException - Exception thrown by the application who implemented the visitor