Interface Node

    • Method Summary

      All Methods Instance Methods Abstract Methods 
      Modifier and Type Method Description
      <R,​P>
      R
      accept​(NodeVisitor<? extends R,​? super P> visitor, P data)
      Supports the Visitor pattern.
      ExpressionAccessor getAccessor()
      Gets the compiled bytecode enhanced expression accessor for getting/setting values.
      java.lang.Object getValue​(OgnlContext context, java.lang.Object source)
      Extracts the value from the given source object that is appropriate for this node within the given context.
      void jjtAddChild​(Node n, int i)
      This method tells the node to add its argument to the node's list of children.
      void jjtClose()
      This method is called after all the child nodes have been added.
      Node jjtGetChild​(int i)
      This method returns a child node.
      int jjtGetNumChildren()
      Return the number of children the node has.
      Node jjtGetParent()  
      void jjtOpen()
      This method is called after the node has been made the current node.
      void jjtSetParent​(Node n)
      This pair of methods are used to inform the node of its parent.
      void setAccessor​(ExpressionAccessor accessor)
      Sets a new compiled accessor for this node expression.
      void setValue​(OgnlContext context, java.lang.Object target, java.lang.Object value)
      Sets the given value in the given target as appropriate for this node within the given context.
    • Method Detail

      • jjtOpen

        void jjtOpen()
        This method is called after the node has been made the current node. It indicates that child nodes can now be added to it.
      • jjtClose

        void jjtClose()
        This method is called after all the child nodes have been added.
      • jjtSetParent

        void jjtSetParent​(Node n)
        This pair of methods are used to inform the node of its parent.
      • jjtGetParent

        Node jjtGetParent()
      • jjtAddChild

        void jjtAddChild​(Node n,
                         int i)
        This method tells the node to add its argument to the node's list of children.
      • jjtGetChild

        Node jjtGetChild​(int i)
        This method returns a child node. The children are numbered from zero, left to right.
      • jjtGetNumChildren

        int jjtGetNumChildren()
        Return the number of children the node has.
      • getValue

        java.lang.Object getValue​(OgnlContext context,
                                  java.lang.Object source)
                           throws OgnlException
        Extracts the value from the given source object that is appropriate for this node within the given context.
        Throws:
        OgnlException
      • setValue

        void setValue​(OgnlContext context,
                      java.lang.Object target,
                      java.lang.Object value)
               throws OgnlException
        Sets the given value in the given target as appropriate for this node within the given context.
        Throws:
        OgnlException
      • getAccessor

        ExpressionAccessor getAccessor()
        Gets the compiled bytecode enhanced expression accessor for getting/setting values.
        Returns:
        The accessor for this node, or null if none has been compiled for it.
      • setAccessor

        void setAccessor​(ExpressionAccessor accessor)
        Sets a new compiled accessor for this node expression.
        Parameters:
        accessor - The compiled representation of this node.
      • accept

        <R,​P> R accept​(NodeVisitor<? extends R,​? super P> visitor,
                             P data)
                      throws OgnlException
        Supports the Visitor pattern. The method which corresponds to the runtime type of this Node will be called.
        Type Parameters:
        R - The return type of the visitor.visit method.
        P - The type of the second parameter type.
        Parameters:
        visitor - The visitor to accept.
        data - The second parameter to pass through to visitor.visit
        Returns:
        the value returned by visitor.visit
        Throws:
        java.lang.NullPointerException - if visitor is null
        java.lang.RuntimeException - if visitor.visit throws an exception.
        OgnlException