net.sf.saxon.expr

Class ParentNodeExpression

public class ParentNodeExpression extends SingleNodeExpression

Class ParentNodeExpression represents the XPath expression ".." or "parent::node()"
Method Summary
PathMap.PathMapNodeSetaddToPathMap(PathMap pathMap, PathMap.PathMapNodeSet pathMapNodeSet)
Add a representation of this expression to a PathMap.
Expressioncopy()
Copy an expression.
booleanequals(Object other)
Is this expression the same as another expression?
voidexplain(ExpressionPresenter destination)
Diagnostic print of expression structure.
NodeInfogetNode(XPathContext context)
Return the node selected by this SingleNodeExpression
inthashCode()
get HashCode for comparing two expressions
protected StringnoContextMessage()
Customize the error message on type checking
StringtoString()
The toString() method for an expression attempts to give a representation of the expression in an XPath-like form, but there is no guarantee that the syntax will actually be true XPath.

Method Detail

addToPathMap

public PathMap.PathMapNodeSet addToPathMap(PathMap pathMap, PathMap.PathMapNodeSet pathMapNodeSet)
Add a representation of this expression to a PathMap. The PathMap captures a map of the nodes visited by an expression in a source tree.

Parameters: pathMap the PathMap to which the expression should be added pathMapNodeSet

Returns: the pathMapNode representing the focus established by this expression, in the case where this expression is the first operand of a path expression or filter expression

copy

public Expression copy()
Copy an expression. This makes a deep copy.

Returns: the copy of the original expression

equals

public boolean equals(Object other)
Is this expression the same as another expression?

explain

public void explain(ExpressionPresenter destination)
Diagnostic print of expression structure. The abstract expression tree is written to the supplied output destination.

getNode

public NodeInfo getNode(XPathContext context)
Return the node selected by this SingleNodeExpression

Parameters: context The context for the evaluation

Returns: the parent of the current node defined by the context

hashCode

public int hashCode()
get HashCode for comparing two expressions

noContextMessage

protected String noContextMessage()
Customize the error message on type checking

toString

public String toString()
The toString() method for an expression attempts to give a representation of the expression in an XPath-like form, but there is no guarantee that the syntax will actually be true XPath. In the case of XSLT instructions, the toString() method gives an abstracted view of the syntax