Class AttributeValueTemplate


  • public abstract class AttributeValueTemplate
    extends java.lang.Object
    This class represents an attribute value template. The class allows an AVT to be parsed, and can construct an Expression that returns the effective value of the AVT.

    This is an abstract class that is never instantiated, it contains static methods only.

    • Method Summary

      All Methods Static Methods Concrete Methods 
      Modifier and Type Method Description
      static Expression make​(java.lang.String avt, StaticContext env)
      Static factory method to create an AVT from an XSLT string representation.
      static Expression makeFirstItem​(Expression exp, StaticContext env)
      Make an expression that extracts the first item of a sequence, after atomization
      • Methods inherited from class java.lang.Object

        clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
    • Method Detail

      • make

        public static Expression make​(java.lang.String avt,
                                      StaticContext env)
                               throws XPathException
        Static factory method to create an AVT from an XSLT string representation. The method is also used for text value templates.
        Parameters:
        avt - the attribute value template (or TVT) as written.
        env - the static context
        Returns:
        an expression that computes the value of the attribute / content, as a string. In the case of a TVT this must be further processed to create a text node.
        Throws:
        XPathException - if a static error is found
      • makeFirstItem

        public static Expression makeFirstItem​(Expression exp,
                                               StaticContext env)
        Make an expression that extracts the first item of a sequence, after atomization
        Parameters:
        exp - an expression that evaluates to a sequence
        env - the static context of the expression
        Returns:
        an expression that returns the first item in the sequence returned by exp