com.saxonica.schema
Class UnionSelection

java.lang.Object
  com.saxonica.schema.UnionSelection

All Implemented Interfaces:

Selection

public class UnionSelection

extends java.lang.Object

implements Selection

A union selection is a selection consisting of several alternatives separated by "|"

Constructor Summary

UnionSelection(Selection p1, Selection p2)

Method Summary

boolean	canMatchAttributes() Determine whether the selection can match attribute nodes
boolean	canMatchElementContent() Determin whether the selection can match element content
boolean	matchesAttribute(int fingerprint) Determine whether a given attribute matches the Selection
boolean	matchesElement(int[] stack, int length, int contextPosition) Determine whether the selector matches a given element.

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

UnionSelection

public UnionSelection(Selection p1,
                      Selection p2)

Method Detail

matchesElement

public boolean matchesElement(int[] stack,
                              int length,
                              int contextPosition)

Determine whether the selector matches a given element. The element is identified by an array of integers representing the fingerprints of the names of this element and each of its ancestors, in document order (i.e., root element first, matched element last).

Specified by:

matchesElement in interface Selection

Parameters:

stack - the array of name fingerprints

length - the effective length of the array; any items beyond this position are ignored

contextPosition - the position in this array of the context element for the selection.

Returns:

true if the element matches

matchesAttribute

public boolean matchesAttribute(int fingerprint)
                         throws ValidationException

Determine whether a given attribute matches the Selection

Specified by:

matchesAttribute in interface Selection

Returns:

true if it matches, false if it does not match

Throws:

ValidationException - if there is more than one attribute that matches

canMatchAttributes

public boolean canMatchAttributes()

Determine whether the selection can match attribute nodes

Specified by:

canMatchAttributes in interface Selection

canMatchElementContent

public boolean canMatchElementContent()

Determin whether the selection can match element content

Specified by:

canMatchElementContent in interface Selection