Package com.saxonica.ee.schema

Class UserAtomicType

java.lang.Object

com.saxonica.ee.schema.SchemaStructure

com.saxonica.ee.schema.UserDefinedType

com.saxonica.ee.schema.UserSimpleType

com.saxonica.ee.schema.UserAtomicType

All Implemented Interfaces:

SerializableSchemaComponent, UserSchemaComponent, javax.xml.transform.SourceLocator, Location, AtomicType, CastingTarget, HyperType, ItemType, PlainType, SchemaComponent, SchemaType, SimpleType, org.xml.sax.Locator

public class UserAtomicType
extends UserSimpleType
implements AtomicType

An object belonging to this class represents an atomic type: either a built-in atomic type, or a user-defined atomic type. There is at most one AtomicType object for each distinct type in the schema (so equality can safely be tested using the == operator).

Field Summary

Fields inherited from class com.saxonica.ee.schema.UserDefinedType

extendedTypes, finalProhibitions

Constructor Summary

Constructors

Constructor	Description
UserAtomicType(EnterpriseConfiguration config)	Create a UserAtomicType

Method Summary

Modifier and Type	Method	Description
AtomicType	getAtomizedItemType()	Get the item type of the atomic values that will be produced when an item of this type is atomized
java.lang.String	getBasicAlphaCode()	Get an alphabetic code representing the type, or at any rate, the nearest built-in type from which this type is derived.
java.util.List<? extends PlainType>	getPlainMemberTypes()	Get the set of atomic types that are subsumed by this type
AtomicType	getPrimitiveItemType()	Get the primitive type from which this type is derived.
int	getPrimitiveType()	Get the primitive type from which this type is derived.
java.lang.String	getSharedInstance(java.lang.String value)	Get an instance of the facet value that is stored in the schema rather than the instance
StringConverter	getStringConverter(ConversionRules rules)	Get a StringConverter, an object which converts strings in the lexical space of this data type to instances (in the value space) of the data type.
AtomicValue	getTypedValue(UnicodeString value, NamespaceResolver resolver, ConversionRules rules)	Get the typed value corresponding to a given string value, assuming it is valid against this type
UType	getUType()	Get the corresponding UType.
int	hashCode()	Returns a hash code value for the object.
boolean	isAbstract()	Determine whether the type is abstract, that is, whether it cannot have instances that are not also instances of some concrete subtype
boolean	isAtomicType()	Test whether this Simple Type is an atomic type
boolean	isAtomizable(TypeHierarchy th)	Ask whether values of this type are atomizable
boolean	isBuiltInType()	Determine whether this is a built-in type or a user-defined type
boolean	isCompilable()	Ask whether it is possible to generate bytecode to perform validation against this atomic type
boolean	isIdRefType()	Ask whether this type is an IDREF or IDREFS type.
boolean	isIdType()	Ask whether this type is an ID type.
boolean	isNamespaceSensitive()	Test whether this simple type is namespace-sensitive, that is, whether it is derived from xs:QName or xs:NOTATION
boolean	isOrdered(boolean optimistic)	Determine whether the atomic type is ordered, that is, whether less-than and greater-than comparisons are permitted
boolean	isPlainType()	Ask whether this is a plain type (a type whose instances are always atomic values)
boolean	isPrimitiveType()	Determine whether the atomic type is a primitive type.
boolean	matches(Item item, TypeHierarchy th)	Test whether a given item conforms to this type
protected void	serializeVariety(SchemaModelSerializer serializer)	Serialize the schema component
java.lang.String	toExportString()	Return a string representation of this ItemType suitable for use in stylesheet export files.
java.lang.String	toString()	Produce a string representation of the type name.
boolean	validate(SchemaCompiler compiler)	Checks the validity of this SimpleType definition.
ValidationFailure	validate(AtomicValue primValue, UnicodeString lexicalValue, ConversionRules rules)	Validate that a primitive atomic value is a valid instance of a type derived from the same primitive type.
ValidationFailure	validateContent(UnicodeString value, NamespaceResolver nsResolver, ConversionRules rules)	Check whether a given input string is valid according to this SimpleType

Methods inherited from class com.saxonica.ee.schema.UserSimpleType

addFacet, addInheritedFacets, analyzeContentExpression, applyWhitespaceNormalization, atomize, checkAgainstFacets, checkTypeDerivationIsOK, convertFacetValues, elaborate, getBuiltInBaseType, getComponentAsFunction, getComponentAsFunction, getContextComponent, getEQName, getExtendedFacetList, getFacet, getLocalFacetList, getWhitespaceAction, isListType, isSimpleType, isTypeDerivationOK, isUnionType, makeValidationFailure, mergeEnumerationFacets, postprocess, preprocess, serialize, setContextComponent, setFacetList

Methods inherited from class com.saxonica.ee.schema.UserDefinedType

allowsDerivation, containingDeclarationIsElement, getBaseType, getBaseTypeFingerprint, getBaseTypeReference, getBlock, getContainingDeclarationName, getDerivationMethod, getDescription, getDisplayName, getExtensionTypes, getFinalProhibitions, getFingerprint, getName, getNamePool, getStructuredQName, getTargetNamespace, getTypeName, isAnonymousType, isComplexType, isSameType, isSameURI, registerExtensionType, setBaseTypeReference, setContainingDeclaration, setDerivationMethod, setDerivationMethodName, setExtendedTypes, setFinalProhibitions, setTypeName

Methods inherited from class com.saxonica.ee.schema.SchemaStructure

fixup, getColumnNumber, getConfiguration, getFixupStatus, getGeneratedId, getLineNumber, getPublicId, getRedefinitionLevel, getSchemaDocumentURI, getSystemId, getValidationStatus, hasSameLocation, isValidationNeeded, lookForCycles, makeXPathExpressionPropertyRecord, saveLocation, setConfiguration, setFixupStatus, setGeneratedId, setLineNumber, setLocator, setRedefinitionLevel, setSchemaDocumentURI, setSystemId, setValidationStatus

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.saxon.type.AtomicType

explainMismatch, getDefaultPriority, getGenre, getPrimitiveAtomicType, getTypeName

Methods inherited from interface net.sf.saxon.type.ItemType

getFullAlphaCode, getNormalizedDefaultPriority

Methods inherited from interface net.sf.saxon.type.SchemaComponent

getComponentAsFunction, getRedefinitionLevel, getValidationStatus

Methods inherited from interface net.sf.saxon.type.SchemaType

allowsDerivation, analyzeContentExpression, atomize, checkTypeDerivationIsOK, getBaseType, getBlock, getDerivationMethod, getDescription, getDisplayName, getEQName, getFinalProhibitions, getFingerprint, getName, getStructuredQName, getSystemId, getTargetNamespace, isAnonymousType, isComplexType, isSameType, isSimpleType

Methods inherited from interface net.sf.saxon.type.SimpleType

getBuiltInBaseType, getWhitespaceAction, isListType, isUnionType, postprocess, preprocess

Methods inherited from interface com.saxonica.ee.schema.UserSchemaComponent

fixup, lookForCycles

Constructor Detail

UserAtomicType

public UserAtomicType(EnterpriseConfiguration config)

Create a UserAtomicType

Parameters:

config - the Saxon configuration

Method Detail

isAtomicType

public boolean isAtomicType()

Test whether this Simple Type is an atomic type

Specified by:

isAtomicType in interface ItemType

Specified by:

isAtomicType in interface SchemaType

Specified by:

isAtomicType in interface SimpleType

Overrides:

isAtomicType in class UserSimpleType

Returns:

true, this is an atomic type

isPlainType

public boolean isPlainType()

Ask whether this is a plain type (a type whose instances are always atomic values)

Specified by:

isPlainType in interface ItemType

Returns:

true

isIdType

public boolean isIdType()

Ask whether this type is an ID type. This is defined to be any simple type who typed value may contain atomic values of type xs:ID: that is, it includes types derived from ID by restriction, list, or union. Note that for a node to be treated as an ID, its typed value must be a *single* atomic value of type ID; the type of the node, however, can still allow a list.

Specified by:

isIdType in interface AtomicType

Specified by:

isIdType in interface SchemaType

Overrides:

isIdType in class UserSimpleType

Returns:

true if this type is an ID type

isIdRefType

public boolean isIdRefType()
                    throws MissingComponentException

Ask whether this type is an IDREF or IDREFS type. This is defined to be any simple type who typed value may contain atomic values of type xs:IDREF: that is, it includes types derived from IDREF or IDREFS by restriction, list, or union

Specified by:

isIdRefType in interface AtomicType

Specified by:

isIdRefType in interface SchemaType

Overrides:

isIdRefType in class UserSimpleType

Returns:

true if this type is an IDREF type

Throws:

MissingComponentException

isBuiltInType

public boolean isBuiltInType()

Determine whether this is a built-in type or a user-defined type

Specified by:

isBuiltInType in interface AtomicType

Specified by:

isBuiltInType in interface SimpleType

Returns:

true if this is a built-in type

getBasicAlphaCode

public java.lang.String getBasicAlphaCode()

Get an alphabetic code representing the type, or at any rate, the nearest built-in type from which this type is derived. The codes are designed so that for any two built-in types A and B, alphaCode(A) is a prefix of alphaCode(B) if and only if A is a supertype of B.

Specified by:

getBasicAlphaCode in interface ItemType

Returns:

the alphacode for the nearest containing built-in type

isPrimitiveType

public boolean isPrimitiveType()

Determine whether the atomic 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; and all supertypes of these (xs:anyAtomicType, xs:numeric, ...)

Specified by:

isPrimitiveType in interface AtomicType

Returns:

true if the type is considered primitive under the above rules

getUType

public UType getUType()

Get the corresponding UType. A UType is a union of primitive item types.

Specified by:

getUType in interface ItemType

Returns:

the smallest UType that subsumes this item type

isOrdered

public boolean isOrdered(boolean optimistic)

Determine whether the atomic type is ordered, that is, whether less-than and greater-than comparisons are permitted

Specified by:

isOrdered in interface AtomicType

Parameters:

optimistic - if true, the function takes an optimistic view, returning true if ordering comparisons are available for some subtype. This mainly affects xs:duration, where the function returns true if optimistic is true, false if it is false.

Returns:

true if ordering operations are permitted

isAbstract

public boolean isAbstract()

Determine whether the type is abstract, that is, whether it cannot have instances that are not also instances of some concrete subtype

Specified by:

isAbstract in interface AtomicType

Returns:

false (always)

getStringConverter

public StringConverter getStringConverter(ConversionRules rules)

Get a StringConverter, an object which converts strings in the lexical space of this data type to instances (in the value space) of the data type.

Specified by:

getStringConverter in interface AtomicType

Parameters:

rules - the conversion rules to be used

Returns:

a StringConverter to do the conversion, or null if no built-in converter is available.

validate

public boolean validate(SchemaCompiler compiler)
                 throws SchemaException

Checks the validity of this SimpleType definition.

Specified by:

validate in interface UserSchemaComponent

Overrides:

validate in class UserSimpleType

Parameters:

compiler - used for error reporting

Returns:

true when this Schema definition is valid, otherwise false.

Throws:

SchemaException - when this SimpleType definition is invalid.

matches

public boolean matches(Item item,
                       TypeHierarchy th)

Test whether a given item conforms to this type

Specified by:

matches in interface ItemType

Specified by:

matches in interface PlainType

Parameters:

item - The item to be tested

th - the type hierarchy cache

Returns:

true if the item is an instance of this type; false otherwise

isCompilable

public boolean isCompilable()

Ask whether it is possible to generate bytecode to perform validation against this atomic type

Returns:

true if bytecode generation is possible

validateContent

public ValidationFailure validateContent(UnicodeString value,
                                         NamespaceResolver nsResolver,
                                         ConversionRules rules)

Check whether a given input string is valid according to this SimpleType

Specified by:

validateContent in interface SimpleType

Parameters:

value - the input string to be checked

nsResolver - a namespace resolver used to resolve namespace prefixes if the type is namespace sensitive. The value supplied may be null; in this case any namespace-sensitive content will throw an UnsupportedOperationException.

rules - the conversion rules for this Configuration

Returns:

null if validation succeeds; return a ValidationFailure describing the validation failure if validation fails.

Throws:

java.lang.UnsupportedOperationException - if the type is namespace-sensitive and no namespace resolver is supplied

getTypedValue

public AtomicValue getTypedValue(UnicodeString value,
                                 NamespaceResolver resolver,
                                 ConversionRules rules)
                          throws ValidationException

Get the typed value corresponding to a given string value, assuming it is valid against this type

Specified by:

getTypedValue in interface SimpleType

Parameters:

value - the string value

resolver - the namespace resolver

rules - the conversion rules for the Saxon configuration

Returns:

an iterator over the atomic sequence comprising the typed value

Throws:

ValidationException - if the supplied value is not in the lexical space of the data type

getPrimitiveItemType

public AtomicType getPrimitiveItemType()

Get the primitive type from which this type is derived. For the definition of primitive types, see Type.isPrimitiveAtomicType(int)

Specified by:

getPrimitiveItemType in interface ItemType

Specified by:

getPrimitiveItemType in interface PlainType

Returns:

the type code of the primitive type

getPrimitiveType

public int getPrimitiveType()

Get the primitive type from which this type is derived. For the definition of primitive types, see Type.isPrimitiveAtomicType(int)

Specified by:

getPrimitiveType in interface ItemType

Returns:

the type code of the primitive type

isNamespaceSensitive

public boolean isNamespaceSensitive()

Test whether this simple type is namespace-sensitive, that is, whether it is derived from xs:QName or xs:NOTATION

Specified by:

isNamespaceSensitive in interface HyperType

Returns:

true if this type is derived from xs:QName or xs:NOTATION

getAtomizedItemType

public AtomicType getAtomizedItemType()

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

Specified by:

getAtomizedItemType in interface ItemType

Returns:

the best available item type of the atomic values that will be produced when an item of this type is atomized, or null if it is known that atomization will throw an error.

isAtomizable

public boolean isAtomizable(TypeHierarchy th)

Ask whether values of this type are atomizable

Specified by:

isAtomizable in interface ItemType

Parameters:

th - The type hierarchy cache

Returns:

true unless it is known that these items will be elements with element-only content, in which case return false

getSharedInstance

public java.lang.String getSharedInstance(java.lang.String value)

Get an instance of the facet value that is stored in the schema rather than the instance

Parameters:

value - the value required

Returns:

a string which is equal to the value required, but which if possible is the instance held in the compiled schema, reducing storage requirements in instances.

toString

public java.lang.String toString()

Produce a string representation of the type name. If the type is anonymous, an internally-allocated type name will be returned.

Overrides:

toString in class UserDefinedType

Returns:

the name of the atomic type in the form Q{uri}local

toExportString

public java.lang.String toExportString()

Return a string representation of this ItemType suitable for use in stylesheet export files. This differs from the result of toString() in that it will not contain any references to anonymous types. Note that it may also use the Saxon extended syntax for union types and tuple types. The default implementation returns the result of calling toString().

Specified by:

toExportString in interface ItemType

Returns:

the string representation as an instance of the XPath SequenceType construct

hashCode

public int hashCode()

Returns a hash code value for the object.

Overrides:

hashCode in class java.lang.Object

validate

public ValidationFailure validate(AtomicValue primValue,
                                  UnicodeString lexicalValue,
                                  ConversionRules rules)

Validate that a primitive atomic value is a valid instance of a type derived from the same primitive type.

Specified by:

validate in interface AtomicType

Parameters:

primValue - the value in the value space of the primitive type.

lexicalValue - the value in the lexical space. If null, the string value of primValue is used. This value is checked against the pattern facet (if any)

rules - the conversion rules used for this configuration

Returns:

null if the value is valid; otherwise, a ValidationFailure object indicating the nature of the error.

Throws:

java.lang.UnsupportedOperationException - in the case of an external object type

serializeVariety

protected void serializeVariety(SchemaModelSerializer serializer)
                         throws XPathException

Serialize the schema component

Specified by:

serializeVariety in class UserSimpleType

Throws:

XPathException

getPlainMemberTypes

public java.util.List<? extends PlainType> getPlainMemberTypes()

Get the set of atomic types that are subsumed by this type

Specified by:

getPlainMemberTypes in interface PlainType

Returns:

for an atomic type, the type itself; for a union type, the set of atomic types in its transitive membership