Package net.sf.saxon.instruct

Class FixedElement

  • All Implemented Interfaces:
    java.io.Serializable, javax.xml.transform.SourceLocator, Container, Expression, TailCallReturner, InstructionInfoProvider
    public class FixedElement
extends ElementCreator
    An instruction that creates an element node whose name is known statically. Used for literal results elements in XSLT, for direct element constructors in XQuery, and for xsl:element in cases where the name and namespace are known statically.
    See Also:
    Serialized Form

    • Field Detail

      • namespaceCodes

        protected int[] namespaceCodes

    • Constructor Detail

      • FixedElement

        public FixedElement​(int nameCode,
                    int[] namespaceCodes,
                    boolean inheritNamespaces,
                    SchemaType schemaType,
                    int validation)
        Create an instruction that creates a new element node
        Parameters:
        nameCode - Represents the name of the element node
        namespaceCodes - List of namespaces to be added to the element node. May be null if none are required.
        inheritNamespaces - true if the children of this element are to inherit its namespaces
        schemaType - Type annotation for the new element node

    • Method Detail

      • getNameCode

        public int getNameCode​(XPathContext context)
        Callback from the superclass ElementCreator to get the nameCode for the element name
        Specified by:
        getNameCode in class ElementCreator
        Parameters:
        context - The evaluation context (not used)
        Returns:
        the name code for the element name

      • checkPermittedContents

        public void checkPermittedContents​(SchemaType parentType,
                                   StaticContext env,
                                   boolean whole)
                            throws XPathException
        Check that any elements and attributes constructed or returned by this expression are acceptable in the content model of a given complex type. It's always OK to say yes, since the check will be repeated at run-time. The process of checking element and attribute constructors against the content model of a complex type also registers the type of content expected of those constructors, so the static validation can continue recursively.
        Specified by:
        checkPermittedContents in interface Expression
        Overrides:
        checkPermittedContents in class ComputedExpression
        Parameters:
        parentType - The schema type
        env - the static context
        whole - true if this expression is expected to make the whole content of the type, false if it is expected to make up only a part
        Throws:
        XPathException - if the expression doesn't match the required content type

      • getActiveNamespaces

        public int[] getActiveNamespaces()
        Callback to get a list of the intrinsic namespaces that need to be generated for the element. The result is an array of namespace codes, the codes either occupy the whole array or are terminated by a -1 entry. A result of null is equivalent to a zero-length array.
        Overrides:
        getActiveNamespaces in class ElementCreator

      • display

        public void display​(int level,
                    java.io.PrintStream out,
                    Configuration config)
        Display this instruction as an expression, for diagnostics
        Parameters:
        level - indentation level for this expression
        out - Output destination