com.icl.saxon.expr
Class  NodeListExpression
java.lang.Object
  |
  +--com.icl.saxon.expr.Expression
        |
        +--com.icl.saxon.expr.NodeSetExpression
              |
              +--com.icl.saxon.expr.NodeListExpression
- public class NodeListExpression- extends NodeSetExpression
A NodeListExpression is an expression denoting a set of nodes sorted in document order. 
 It is not possible to write a NodeListExpression directly using XPath; however a node set
 expression is treated as a NodeListExpression when it appears in certain contexts, specifically
 the select attribute of xsl:apply-templates or xsl:for-each.
 
 
| Method Summary | 
|  NodeEnumeration | enumerate(Context c)Return an enumeration that returns the nodes in document order
 | 
|  int | getDependencies()Determine which aspects of the context the expression depends on.
 | 
|  Expression | reduce(int dependencies,
       Context context)Perform a partial evaluation of the expression, by eliminating specified dependencies
 on the context.
 | 
|  Expression | simplify()Simplify the expression
 | 
|  java.lang.String | toString()Get a string representation of this expression
 | 
 
 
 
| Methods inherited from class java.lang.Object | 
| clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait | 
 
NodeListExpression
public NodeListExpression(Expression exp)
- Constructor- 
- Parameters:
- exp- The expression that delivers the unsorted node-set
 
simplify
public Expression simplify()
                    throws org.xml.sax.SAXException
- Simplify the expression- 
- Overrides:
- simplifyin class- Expression
 
- 
- Returns:
- the simplified expression
 
getDependencies
public int getDependencies()
- Determine which aspects of the context the expression depends on. The result is
 a bitwise-or'ed value composed from constants such as Context.VARIABLES and
 Context.CURRENT_NODE- 
- Overrides:
- getDependenciesin class- Expression
 
reduce
public Expression reduce(int dependencies,
                         Context context)
                  throws org.xml.sax.SAXException
- Perform a partial evaluation of the expression, by eliminating specified dependencies
 on the context.- 
- Overrides:
- reducein class- Expression
 
- 
- Parameters:
- dependencies- The dependencies to be removed
- context- The context to be used for the partial evaluation
- Returns:
- a new expression that does not have any of the specified
 dependencies
 
enumerate
public NodeEnumeration enumerate(Context c)
                          throws org.xml.sax.SAXException
- Return an enumeration that returns the nodes in document order- 
- Overrides:
- enumeratein class- NodeSetExpression
 
- Following copied from class: com.icl.saxon.expr.Expression
- 
- Parameters:
- context- The context in which the expression is to be evaluated
- Throws:
- org.xml.sax.SAXException- when the expression is not a nodeset expression.
 
toString
public java.lang.String toString()
- Get a string representation of this expression- 
- Overrides:
- toStringin class- java.lang.Object