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## net.sf.saxon.pattern
Class IdrefTest

    java.lang.Object
      net.sf.saxon.pattern.IdrefTest

All Implemented Interfaces:
  java.io.Serializable, PatternFinder

    public class IdrefTest

extends java.lang.Object
implements PatternFinder, java.io.Serializable

IdrefTest is a test that cannot be represented directly in XPath or XSLT patterns, but which is used internally for matching IDREF nodes: it tests whether the node has the is-idref property

Author:
  Michael H. Kay
See Also:
  Serialized Form

Method Summary
`static IdrefTest` | `getInstance()` Get the singleton instance of this class
`SequenceIterator` | `selectNodes(DocumentInfo doc, XPathContext context)` Select nodes in a document using this PatternFinder.
`java.lang.String` | `toString()`

Methods inherited from class java.lang.Object
`clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait`

Method Detail

### getInstance

    public static IdrefTest getInstance()

  Get the singleton instance of this class

### selectNodes

    public SequenceIterator selectNodes(DocumentInfo doc,
                                        XPathContext context)
                                 throws XPathException

  Select nodes in a document using this PatternFinder.

  Specified by:
    `selectNodes` in interface `PatternFinder`
  Parameters:
    `doc` - the document node at the root of a tree
    `context` - the dynamic evaluation context
  Returns:
    an iterator over the selected nodes in the document.
  Throws:
    `XPathException`

### toString

    public java.lang.String toString()

  Overrides:
    `toString` in class `java.lang.Object`

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