public class HierarchyNode extends Object implements ParseTreeNode
Hierarchy
as an expression in an MDX
parse tree.Constructor and Description |
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HierarchyNode(ParseRegion region,
Hierarchy hierarchy)
Creates a HierarchyNode.
|
Modifier and Type | Method and Description |
---|---|
<T> T |
accept(ParseTreeVisitor<T> visitor)
Accepts a visitor to this MDX parse tree node.
|
HierarchyNode |
deepCopy()
Creates a deep copy of this ParseTreeNode object.
|
Hierarchy |
getHierarchy()
Returns the Hierarchy used in this expression.
|
ParseRegion |
getRegion()
Returns the region of the source code which this node was created from,
if it was created by parsing.
|
Type |
getType()
Returns the type of this expression.
|
String |
toString() |
void |
unparse(ParseTreeWriter writer)
Converts this node into MDX text.
|
public HierarchyNode(ParseRegion region, Hierarchy hierarchy)
region
- Region of source codehierarchy
- Hierarchy which is used in the expressionpublic ParseRegion getRegion()
ParseTreeNode
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.
getRegion
in interface ParseTreeNode
public Hierarchy getHierarchy()
public <T> T accept(ParseTreeVisitor<T> visitor)
ParseTreeNode
The implementation should generally dispatches to the
ParseTreeVisitor.visit(org.olap4j.mdx.SelectNode)
method appropriate to the type of expression.
accept
in interface ParseTreeNode
visitor
- Visitorpublic Type getType()
ParseTreeNode
Returns null if this node is not an expression, for instance a
SELECT
node.
getType
in interface ParseTreeNode
public void unparse(ParseTreeWriter writer)
ParseTreeNode
unparse
in interface ParseTreeNode
writer
- Parse tree writerpublic HierarchyNode deepCopy()
ParseTreeNode
Note: implementing classes can return the concrete type instead of ParseTreeNode (using Java 1.5 covariant return types)
deepCopy
in interface ParseTreeNode