public class AxisNode extends Object implements ParseTreeNode
Constructor and Description |
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AxisNode(ParseRegion region,
boolean nonEmpty,
Axis axis,
List<IdentifierNode> dimensionProperties,
ParseTreeNode expression)
Creates an axis.
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Modifier and Type | Method and Description |
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<T> T |
accept(ParseTreeVisitor<T> visitor)
Accepts a visitor to this MDX parse tree node.
|
AxisNode |
deepCopy()
Creates a deep copy of this ParseTreeNode object.
|
Axis |
getAxis()
Returns the name of the axis this axis expression is populating.
|
List<IdentifierNode> |
getDimensionProperties()
Returns the list of dimension properties of this axis.
|
ParseTreeNode |
getExpression()
Returns the expression which is used to compute the value of this axis.
|
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.
|
boolean |
isNonEmpty()
Returns whether the axis has the
NON EMPTY property set. |
void |
setExpression(ParseTreeNode expr)
Sets the expression which is used to compute the value of this axis.
|
void |
setNonEmpty(boolean nonEmpty)
Sets whether the axis has the
NON EMPTY property set. |
void |
unparse(ParseTreeWriter writer)
Converts this node into MDX text.
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public AxisNode(ParseRegion region, boolean nonEmpty, Axis axis, List<IdentifierNode> dimensionProperties, ParseTreeNode expression)
region
- Region of source codenonEmpty
- Whether to filter out members of this axis whose cells
are all emptyaxis
- Which axis (ROWS, COLUMNS, etc.)dimensionProperties
- List of dimension properties; if null,
empty list is assumedexpression
- Expression to populate the axispublic 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 <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 Axis getAxis()
public boolean isNonEmpty()
NON EMPTY
property set.public void setNonEmpty(boolean nonEmpty)
NON EMPTY
property set.
See isNonEmpty()
.nonEmpty
- whether the axis is NON EMPTYpublic ParseTreeNode getExpression()
public void setExpression(ParseTreeNode expr)
getExpression()
.expr
- the expression which is used to compute the value of this
axispublic void unparse(ParseTreeWriter writer)
ParseTreeNode
unparse
in interface ParseTreeNode
writer
- Parse tree writerpublic List<IdentifierNode> getDimensionProperties()
public Type getType()
ParseTreeNode
Returns null if this node is not an expression, for instance a
SELECT
node.
getType
in interface ParseTreeNode
public AxisNode deepCopy()
ParseTreeNode
Note: implementing classes can return the concrete type instead of ParseTreeNode (using Java 1.5 covariant return types)
deepCopy
in interface ParseTreeNode