PathMap.PathMapRoot

java.lang.Object
- net.sf.saxon.expr.parser.PathMap.PathMapNode
- - net.sf.saxon.expr.parser.PathMap.PathMapRoot

Enclosing class:

PathMap
```
public static class PathMap.PathMapRoot
extends PathMap.PathMapNode
```
A root node in the path map. A root node represents either (a) a subexpression that is the first step in a path expression, or (b) a subexpression that is not the first step in a path, but which returns nodes (for example, a call on the doc() function).

- Field Summary
  
  Fields
  Modifier and Type Field Description
  
  boolean isDownwardsOnly
- Constructor Summary
  
  Constructors
  Modifier Constructor Description
  
  protected PathMapRoot(Expression root)
  Create a PathMapRoot
- Method Summary
  
  All Methods Instance Methods Concrete Methods
  Modifier and Type Method Description
  
  Expression getRootExpression()
  Get the root expression
  - Methods inherited from class net.sf.saxon.expr.parser.PathMap.PathMapNode
    allPathsAreWithinStreamableSnapshot, createArc, createArc, getArcs, hasReachableReturnables, hasUnknownDependencies, isAtomized, isReturnable, setAtomized, setHasUnknownDependencies, setReturnable
  - Methods inherited from class java.lang.Object
    clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Field Detail
  - isDownwardsOnly
```
public boolean isDownwardsOnly
```
- Constructor Detail
  - PathMapRoot
```
protected PathMapRoot(Expression root)
```
    Create a PathMapRoot
    
    Parameters:
    
    root - the expression at the root of a path
- Method Detail
  - getRootExpression
```
public Expression getRootExpression()
```
    Get the root expression
    
    Returns:
    
    the expression at the root of the path