Package net.sf.saxon.s9api

Class ConstructedItemType

java.lang.Object

net.sf.saxon.s9api.ItemType

net.sf.saxon.s9api.ConstructedItemType

class ConstructedItemType
extends ItemType

An item type constructed by the ItemTypeFactory (as distinct from one that is predefined) This class is not user-visible.

Nested Class Summary

Nested classes/interfaces inherited from class net.sf.saxon.s9api.ItemType

ItemType.BuiltInAtomicItemType

Field Summary

Fields inherited from class net.sf.saxon.s9api.ItemType

ANY_ATOMIC_VALUE, ANY_ITEM, ANY_NODE, ANY_URI, BASE64_BINARY, BOOLEAN, BYTE, DATE, DATE_TIME, DATE_TIME_STAMP, DAY_TIME_DURATION, DECIMAL, DOUBLE, DURATION, ENTITY, FLOAT, G_DAY, G_MONTH, G_MONTH_DAY, G_YEAR, G_YEAR_MONTH, HEX_BINARY, ID, IDREF, INT, INTEGER, LANGUAGE, LONG, NAME, NCNAME, NEGATIVE_INTEGER, NMTOKEN, NON_NEGATIVE_INTEGER, NON_POSITIVE_INTEGER, NORMALIZED_STRING, NOTATION, NUMERIC, POSITIVE_INTEGER, QNAME, SHORT, STRING, TIME, TOKEN, UNSIGNED_BYTE, UNSIGNED_INT, UNSIGNED_LONG, UNSIGNED_SHORT, UNTYPED_ATOMIC, YEAR_MONTH_DURATION

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	ConstructedItemType(ItemType underlyingType, Processor processor)	Protected constructor

Method Summary

Modifier and Type	Method	Description
ConversionRules	getConversionRules()	Get the conversion rules implemented by this type.
protected Processor	getProcessor()	Get the underlying Processor
ItemType	getUnderlyingItemType()	Method to get the underlying Saxon implementation object
boolean	matches(XdmItem item)	Determine whether this item type matches a given item.
boolean	subsumes(ItemType other)	Determine whether this ItemType subsumes another ItemType.

Methods inherited from class java.lang.Object

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

Constructor Detail

ConstructedItemType

protected ConstructedItemType(ItemType underlyingType,
                              Processor processor)

Protected constructor

Parameters:

underlyingType - the Saxon internal item type. Must not be null.

processor - The s9api processor Must not be null

Method Detail

getConversionRules

public ConversionRules getConversionRules()

Get the conversion rules implemented by this type. The conversion rules reflect variations between different versions of the W3C specifications, for example XSD 1.1 allows "+INF" as a lexical representation of xs:double, while XSD 1.0 does not.

Specified by:

getConversionRules in class ItemType

Returns:

the conversion rules

matches

public boolean matches(XdmItem item)

Determine whether this item type matches a given item.

Specified by:

matches in class ItemType

Parameters:

item - the item to be tested against this item type

Returns:

true if the item matches this item type, false if it does not match.

subsumes

public boolean subsumes(ItemType other)

Determine whether this ItemType subsumes another ItemType. Specifically, A.subsumes(B) is true if every value that matches the ItemType B also matches the ItemType A.

Specified by:

subsumes in class ItemType

Parameters:

other - the other ItemType

Returns:

true if this ItemType subsumes the other ItemType. This includes the case where A and B represent the same ItemType.

Since:

9.1

getUnderlyingItemType

public ItemType getUnderlyingItemType()

Method to get the underlying Saxon implementation object

This gives access to Saxon methods that may change from one release to another.

Specified by:

getUnderlyingItemType in class ItemType

Returns:

the underlying Saxon implementation object

getProcessor

protected Processor getProcessor()

Get the underlying Processor

Returns:

the processor used to create this ItemType. This will be null if the ItemType is one of the three static constant item types ItemType.ANY_ITEM, ItemType.ANY_NODE, or ItemType.ANY_ATOMIC_VALUE