net.sf.saxon.type
Class Type

java.lang.Object
  net.sf.saxon.type.Type

All Implemented Interfaces:

Serializable

public abstract class Type
extends Object
implements Serializable

This class contains static information about types and methods for constructing type codes. The class is never instantiated.

See Also:

Serialized Form

Field Summary

static int	ANY_ATOMIC Constant denoting any atomic type (the union of all primitive types and types derived from primitive types by restriction or by union)
static int	ANY_SIMPLE_TYPE
static int	ANY_URI Item type representing the type xs:anyURI
static short	ATTRIBUTE Item type representing an attribute node - attribute()
static int	BASE64_BINARY Item type representing the type xs:base64Binary
static int	BOOLEAN Item type representing the type xs:boolean
static int	BYTE Item type representing the type xs:byte
static short	COMMENT Item type representing a comment node
static int	DATE Item type representing the type xs:date
static int	DATE_TIME Item type representing the type xs:dateTime
static int	DAY_TIME_DURATION Item type representing the type xs:dayTimeDuration
static int	DECIMAL Item type representing the type xs:decimal
static short	DOCUMENT Item type representing a document node
static int	DOUBLE Item type representing the type xs:double
static int	DURATION Item type representing the type xs:duration
static short	ELEMENT Type representing an element node - element()
static short	EMPTY Item type that matches no items (corresponds to SequenceType empty())
static int	ENTITY Item type representing the type xs:ENTITY
static int	FLOAT Item type representing the type xs:float
static int	G_DAY Item type representing the type xs:gDay
static int	G_MONTH Item type representing the type xs:gMonth
static int	G_MONTH_DAY Item type representing the type xs:monthDay
static int	G_YEAR Item type representing the type xs:gYear
static int	G_YEAR_MONTH Item type representing the type xs:gYearMonth
static int	HEX_BINARY Item type representing the type xs:hexBinary
static int	ID Item type representing the type xs:ID
static int	IDREF Item type representing the type xs:IDREF
static int	IDREFS Content type representing the complex type xs:IDREFS
static int	INT Item type representing the type xs:int
static int	INTEGER Item type representing the type xs:integer
static short	ITEM An item type that matches any item
static ItemType	ITEM_TYPE
static int	LANGUAGE Item type representing the type xs:language
static int	LONG Item type representing the type xs:long
static short	MAX_NODE_TYPE
static int	NAME Item type representing the type xs:NAME
static short	NAMESPACE Item type representing a namespace node
static int	NCNAME Item type representing the type xs:NCNAME
static int	NEGATIVE_INTEGER Item type representing the type xs:negativeInteger
static int	NMTOKEN Item type representing the type xs:NMTOKEN
static int	NMTOKENS Content type representing the complex type xs:NMTOKENS
static short	NODE An item type that matches any node
static ItemType	NODE_TYPE
static int	NON_NEGATIVE_INTEGER Item type representing the type xs:nonNegativeInteger
static int	NON_POSITIVE_INTEGER Item type representing the type xs:nonPositiveInteger
static int	NORMALIZED_STRING Item type representing the type xs:normalizedString
static int	NOTATION Item type representing the type xs:NOTATION
static int	NUMBER Constant denoting any numeric type (the union of float, double, and decimal)
static int	OBJECT Constant representing the type of an external object (for use by extension functions)
static short	PARENT_POINTER Dummy node kind used in the tiny tree to contain a parent pointer
static int	POSITIVE_INTEGER Item type representing the type xs:positiveInteger
static short	PROCESSING_INSTRUCTION Item type representing a processing-instruction node
static int	QNAME Item type representing the type xs:QName
static int	SHORT Item type representing the type xs:short
static short	STOPPER Dummy node kind used in the tiny tree to mark the end of the tree
static int	STRING Constants representing primitive data types defined in Schema Part 2
static short	TEXT Item type representing a text node - text()
static int	TIME Item type representing the type xs:time
static int	TOKEN Item type representing the type xs:token
static int	UNSIGNED_BYTE Item type representing the type xs:unsignedByte
static int	UNSIGNED_INT Item type representing the type xs:unsignedInt
static int	UNSIGNED_LONG Item type representing the type xs:unsignedLong
static int	UNSIGNED_SHORT Item type representing the type xs:unsignedShort
static int	UNTYPED_ATOMIC Item type representing the type xs:untypedAtomic (the type of the content of a schema-less node)
static short	WHITESPACE_TEXT Item type representing a text node stored in the tiny tree as compressed whitespace
static int	YEAR_MONTH_DURATION Item type representing the type xs:yearMonthDuration

Method Summary

static String	displayTypeName(Item item) Output (for diagnostics) a representation of the type of an item.
static ItemType	getBuiltInItemType(String namespace, String localName) Get the SimpleType object for a built-in simple type code
static ItemType	getCommonSuperType(ItemType t1, ItemType t2, TypeHierarchy th) Get a type that is a common supertype of two given types
static ItemType	getItemType(Item item, TypeHierarchy th) Get the ItemType of an Item
static boolean	isComparable(BuiltInAtomicType t1, BuiltInAtomicType t2, boolean ordered) Determine whether two primitive atomic types are comparable
static boolean	isNodeType(ItemType type) Test whether a given type is (some subtype of) node()
static boolean	isPrimitiveType(int code) Determine whether this type is a primitive type.
static int	schemaTypeRelationship(SchemaType s1, SchemaType s2) Get the relationship of two schema types to each other

Methods inherited from class java.lang.Object

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

Field Detail

ELEMENT

public static final short ELEMENT

Type representing an element node - element()

See Also:

Constant Field Values

ATTRIBUTE

public static final short ATTRIBUTE

Item type representing an attribute node - attribute()

See Also:

Constant Field Values

TEXT

public static final short TEXT

Item type representing a text node - text()

See Also:

Constant Field Values

WHITESPACE_TEXT

public static final short WHITESPACE_TEXT

Item type representing a text node stored in the tiny tree as compressed whitespace

See Also:

Constant Field Values

PROCESSING_INSTRUCTION

public static final short PROCESSING_INSTRUCTION

Item type representing a processing-instruction node

See Also:

Constant Field Values

COMMENT

public static final short COMMENT

Item type representing a comment node

See Also:

Constant Field Values

DOCUMENT

public static final short DOCUMENT

Item type representing a document node

See Also:

Constant Field Values

NAMESPACE

public static final short NAMESPACE

Item type representing a namespace node

See Also:

Constant Field Values

STOPPER

public static final short STOPPER

Dummy node kind used in the tiny tree to mark the end of the tree

See Also:

Constant Field Values

PARENT_POINTER

public static final short PARENT_POINTER

Dummy node kind used in the tiny tree to contain a parent pointer

See Also:

Constant Field Values

NODE

public static final short NODE

An item type that matches any node

See Also:

Constant Field Values

NODE_TYPE

public static final ItemType NODE_TYPE

ITEM

public static final short ITEM

An item type that matches any item

See Also:

Constant Field Values

ITEM_TYPE

public static final ItemType ITEM_TYPE

MAX_NODE_TYPE

public static final short MAX_NODE_TYPE

See Also:

Constant Field Values

EMPTY

public static final short EMPTY

Item type that matches no items (corresponds to SequenceType empty())

See Also:

Constant Field Values

ANY_ATOMIC

public static final int ANY_ATOMIC

Constant denoting any atomic type (the union of all primitive types and types derived from primitive types by restriction or by union)

See Also:

Constant Field Values

NUMBER

public static final int NUMBER

Constant denoting any numeric type (the union of float, double, and decimal)

See Also:

Constant Field Values

STRING

public static final int STRING

Constants representing primitive data types defined in Schema Part 2

See Also:

Constant Field Values

BOOLEAN

public static final int BOOLEAN

Item type representing the type xs:boolean

See Also:

Constant Field Values

DECIMAL

public static final int DECIMAL

Item type representing the type xs:decimal

See Also:

Constant Field Values

FLOAT

public static final int FLOAT

Item type representing the type xs:float

See Also:

Constant Field Values

DOUBLE

public static final int DOUBLE

Item type representing the type xs:double

See Also:

Constant Field Values

DURATION

public static final int DURATION

Item type representing the type xs:duration

See Also:

Constant Field Values

DATE_TIME

public static final int DATE_TIME

Item type representing the type xs:dateTime

See Also:

Constant Field Values

TIME

public static final int TIME

Item type representing the type xs:time

See Also:

Constant Field Values

DATE

public static final int DATE

Item type representing the type xs:date

See Also:

Constant Field Values

G_YEAR_MONTH

public static final int G_YEAR_MONTH

Item type representing the type xs:gYearMonth

See Also:

Constant Field Values

G_YEAR

public static final int G_YEAR

Item type representing the type xs:gYear

See Also:

Constant Field Values

G_MONTH_DAY

public static final int G_MONTH_DAY

Item type representing the type xs:monthDay

See Also:

Constant Field Values

G_DAY

public static final int G_DAY

Item type representing the type xs:gDay

See Also:

Constant Field Values

G_MONTH

public static final int G_MONTH

Item type representing the type xs:gMonth

See Also:

Constant Field Values

HEX_BINARY

public static final int HEX_BINARY

Item type representing the type xs:hexBinary

See Also:

Constant Field Values

BASE64_BINARY

public static final int BASE64_BINARY

Item type representing the type xs:base64Binary

See Also:

Constant Field Values

ANY_URI

public static final int ANY_URI

Item type representing the type xs:anyURI

See Also:

Constant Field Values

QNAME

public static final int QNAME

Item type representing the type xs:QName

See Also:

Constant Field Values

NOTATION

public static final int NOTATION

Item type representing the type xs:NOTATION

See Also:

Constant Field Values

UNTYPED_ATOMIC

public static final int UNTYPED_ATOMIC

Item type representing the type xs:untypedAtomic (the type of the content of a schema-less node)

See Also:

Constant Field Values

ANY_SIMPLE_TYPE

public static final int ANY_SIMPLE_TYPE

See Also:

Constant Field Values

OBJECT

public static final int OBJECT

Constant representing the type of an external object (for use by extension functions)

See Also:

Constant Field Values

INTEGER

public static final int INTEGER

Item type representing the type xs:integer

See Also:

Constant Field Values

NON_POSITIVE_INTEGER

public static final int NON_POSITIVE_INTEGER

Item type representing the type xs:nonPositiveInteger

See Also:

Constant Field Values

NEGATIVE_INTEGER

public static final int NEGATIVE_INTEGER

Item type representing the type xs:negativeInteger

See Also:

Constant Field Values

LONG

public static final int LONG

Item type representing the type xs:long

See Also:

Constant Field Values

INT

public static final int INT

Item type representing the type xs:int

See Also:

Constant Field Values

SHORT

public static final int SHORT

Item type representing the type xs:short

See Also:

Constant Field Values

BYTE

public static final int BYTE

Item type representing the type xs:byte

See Also:

Constant Field Values

NON_NEGATIVE_INTEGER

public static final int NON_NEGATIVE_INTEGER

Item type representing the type xs:nonNegativeInteger

See Also:

Constant Field Values

POSITIVE_INTEGER

public static final int POSITIVE_INTEGER

Item type representing the type xs:positiveInteger

See Also:

Constant Field Values

UNSIGNED_LONG

public static final int UNSIGNED_LONG

Item type representing the type xs:unsignedLong

See Also:

Constant Field Values

UNSIGNED_INT

public static final int UNSIGNED_INT

Item type representing the type xs:unsignedInt

See Also:

Constant Field Values

UNSIGNED_SHORT

public static final int UNSIGNED_SHORT

Item type representing the type xs:unsignedShort

See Also:

Constant Field Values

UNSIGNED_BYTE

public static final int UNSIGNED_BYTE

Item type representing the type xs:unsignedByte

See Also:

Constant Field Values

NORMALIZED_STRING

public static final int NORMALIZED_STRING

Item type representing the type xs:normalizedString

See Also:

Constant Field Values

TOKEN

public static final int TOKEN

Item type representing the type xs:token

See Also:

Constant Field Values

LANGUAGE

public static final int LANGUAGE

Item type representing the type xs:language

See Also:

Constant Field Values

NMTOKEN

public static final int NMTOKEN

Item type representing the type xs:NMTOKEN

See Also:

Constant Field Values

NMTOKENS

public static final int NMTOKENS

Content type representing the complex type xs:NMTOKENS

See Also:

Constant Field Values

NAME

public static final int NAME

Item type representing the type xs:NAME

See Also:

Constant Field Values

NCNAME

public static final int NCNAME

Item type representing the type xs:NCNAME

See Also:

Constant Field Values

ID

public static final int ID

Item type representing the type xs:ID

See Also:

Constant Field Values

IDREF

public static final int IDREF

Item type representing the type xs:IDREF

See Also:

Constant Field Values

IDREFS

public static final int IDREFS

Content type representing the complex type xs:IDREFS

See Also:

Constant Field Values

ENTITY

public static final int ENTITY

Item type representing the type xs:ENTITY

See Also:

Constant Field Values

YEAR_MONTH_DURATION

public static final int YEAR_MONTH_DURATION

Item type representing the type xs:yearMonthDuration

See Also:

Constant Field Values

DAY_TIME_DURATION

public static final int DAY_TIME_DURATION

Item type representing the type xs:dayTimeDuration

See Also:

Constant Field Values

Method Detail

isNodeType

public static boolean isNodeType(ItemType type)

Test whether a given type is (some subtype of) node()

Parameters:

type - The type to be tested

Returns:

true if the item type is node() or a subtype of node()

getItemType

public static ItemType getItemType(Item item,
                                   TypeHierarchy th)

Get the ItemType of an Item

displayTypeName

public static final String displayTypeName(Item item)

Output (for diagnostics) a representation of the type of an item. This does not have to be the most specific type

getBuiltInItemType

public static ItemType getBuiltInItemType(String namespace,
                                          String localName)

Get the SimpleType object for a built-in simple type code

Returns:

the SimpleType, or null if not found

schemaTypeRelationship

public static int schemaTypeRelationship(SchemaType s1,
                                         SchemaType s2)

Get the relationship of two schema types to each other

getCommonSuperType

public static final ItemType getCommonSuperType(ItemType t1,
                                                ItemType t2,
                                                TypeHierarchy th)

Get a type that is a common supertype of two given types

Parameters:

t1 - the first item type

t2 - the second item type

th -

Returns:

the item type that is a supertype of both the supplied item types

isPrimitiveType

public static boolean isPrimitiveType(int code)

Determine whether this type is a primitive type. The primitive types are the 19 primitive types of XML Schema, plus xs:integer, xs:dayTimeDuration and xs:yearMonthDuration; xs:untypedAtomic; the 7 node kinds; and all supertypes of these (item(), node(), xs:anyAtomicType, xs:numeric, ...)

Parameters:

code - the item type code to be tested

Returns:

true if the type is considered primitive under the above rules

isComparable

public static boolean isComparable(BuiltInAtomicType t1,
                                   BuiltInAtomicType t2,
                                   boolean ordered)

Determine whether two primitive atomic types are comparable

Parameters:

t1 - the first type to compared. This must be a primitive atomic type as defined by ItemType.getPrimitiveType()

t2 - the second type to compared. This must be a primitive atomic type as defined by ItemType.getPrimitiveType()

ordered - true if testing for an ordering comparison (lt, gt, le, ge). False if testing for an equality comparison (eq, ne)

Returns:

true if the types are comparable, as defined by the rules of the "eq" operator