Class HierarchyNode

java.lang.Object
org.olap4j.mdx.HierarchyNode
All Implemented Interfaces:
ParseTreeNode

public class HierarchyNode extends Object implements ParseTreeNode
Usage of a Hierarchy as an expression in an MDX parse tree.
Since:
Jun 4, 2007
Author:
jhyde
  • Constructor Details

    • HierarchyNode

      public HierarchyNode(ParseRegion region, Hierarchy hierarchy)
      Creates a HierarchyNode.
      Parameters:
      region - Region of source code
      hierarchy - Hierarchy which is used in the expression
  • Method Details

    • getRegion

      public ParseRegion getRegion()
      Description copied from interface: ParseTreeNode
      Returns the region of the source code which this node was created from, if it was created by parsing.

      A non-leaf node's region will encompass the regions of all of its children. For example, a the region of a function call node Crossjoin([Gender], {[Store].[USA]}) stretches from the first character of the function name to the closing parenthesis.

      Region may be null, if the node was created programmatically, not from a piece of source code.

      Specified by:
      getRegion in interface ParseTreeNode
      Returns:
      Region of the source code this node was created from, if it was created by parsing
    • getHierarchy

      public Hierarchy getHierarchy()
      Returns the Hierarchy used in this expression.
      Returns:
      hierarchy used in this expression
    • accept

      public <T> T accept(ParseTreeVisitor<T> visitor)
      Description copied from interface: ParseTreeNode
      Accepts a visitor to this MDX parse tree node.

      The implementation should generally dispatches to the ParseTreeVisitor.visit(org.olap4j.mdx.SelectNode) method appropriate to the type of expression.

      Specified by:
      accept in interface ParseTreeNode
      Parameters:
      visitor - Visitor
      Returns:
      T, the specific return type of the visitor
    • getType

      public Type getType()
      Description copied from interface: ParseTreeNode
      Returns the type of this expression.

      Returns null if this node is not an expression, for instance a SELECT node.

      Specified by:
      getType in interface ParseTreeNode
      Returns:
      type of this expression
    • unparse

      public void unparse(ParseTreeWriter writer)
      Description copied from interface: ParseTreeNode
      Converts this node into MDX text.
      Specified by:
      unparse in interface ParseTreeNode
      Parameters:
      writer - Parse tree writer
    • toString

      public String toString()
      Overrides:
      toString in class Object
    • deepCopy

      public HierarchyNode deepCopy()
      Description copied from interface: ParseTreeNode
      Creates a deep copy of this ParseTreeNode object.

      Note: implementing classes can return the concrete type instead of ParseTreeNode (using Java 1.5 covariant return types)

      Specified by:
      deepCopy in interface ParseTreeNode
      Returns:
      The deep copy of this ParseTreeNode