Interface ItemType

    • Method Detail

      • isAtomicType

        boolean isAtomicType()
        Determine whether this item type is atomic (that is, whether it can ONLY match atomic values)
        Returns:
        true if this is ANY_ATOMIC_TYPE or a subtype thereof
      • matchesItem

        boolean matchesItem​(Item item,
                            boolean allowURIPromotion,
                            Configuration config)
        Test whether a given item conforms to this type
        Parameters:
        item - The item to be tested
        allowURIPromotion -
        config -
        Returns:
        true if the item is an instance of this type; false otherwise
      • getSuperType

        ItemType getSuperType​(TypeHierarchy th)
        Get the type from which this item type is derived by restriction. This is the supertype in the XPath type heirarchy, as distinct from the Schema base type: this means that the supertype of xs:boolean is xs:anyAtomicType, whose supertype is item() (rather than xs:anySimpleType).

        In fact the concept of "supertype" is not really well-defined, because the types form a lattice rather than a hierarchy. The only real requirement on this function is that it returns a type that strictly subsumes this type, ideally as narrowly as possible.

        Parameters:
        th - the type hierarchy cache
        Returns:
        the supertype, or null if this type is item()
      • getPrimitiveItemType

        ItemType getPrimitiveItemType()
        Get the primitive item type corresponding to this item type. For item(), this is Type.ITEM. For node(), it is Type.NODE. For specific node kinds, it is the value representing the node kind, for example Type.ELEMENT. For anyAtomicValue it is Type.ATOMIC_VALUE. For numeric it is Type.NUMBER. For other atomic types it is the primitive type as defined in XML Schema, except that integer, xs:dayTimeDuration, and xs:yearMonthDuration are considered to be primitive types.
      • getPrimitiveType

        int getPrimitiveType()
        Get the primitive type corresponding to this item type. For item(), this is Type.ITEM. For node(), it is Type.NODE. For specific node kinds, it is the value representing the node kind, for example Type.ELEMENT. For anyAtomicValue it is Type.ATOMIC_VALUE. For numeric it is Type.NUMBER. For other atomic types it is the primitive type as defined in XML Schema, except that INTEGER is considered to be a primitive type.
      • toString

        java.lang.String toString​(NamePool pool)
        Produce a representation of this type name for use in error messages. Where this is a QName, it will use conventional prefixes
      • getAtomizedItemType

        AtomicType getAtomizedItemType()
        Get the item type of the atomic values that will be produced when an item of this type is atomized