net.sf.saxon.type
Interface SimpleType

All Superinterfaces:

SchemaComponent, SchemaType, Serializable

All Known Subinterfaces:

AtomicType, ListType

All Known Implementing Classes:

AnySimpleType, BuiltInAtomicType, BuiltInListType, ErrorType, ExternalObjectType, SimpleTypeDefinition, UserAtomicType, UserListType, UserSimpleType, UserUnionType

public interface SimpleType
extends SchemaType

This interface represents a simple type, which may be a built-in simple type, or a user-defined simple type.

Field Summary

static int	VARIETY_ATOMIC
static int	VARIETY_LIST
static int	VARIETY_UNION
static int	VARIETY_UNSPECIFIED_SIMPLE

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

DERIVATION_EXTENSION, DERIVATION_LIST, DERIVATION_RESTRICTION, DERIVATION_UNION, DERIVE_BY_SUBSTITUTION

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

FIXED_UP, INCOMPLETE, INVALID, UNVALIDATED, VALIDATED, VALIDATING

Method Summary

SchemaType	getBuiltInBaseType() Get the built-in type from which this type is derived by restriction
AtomicType	getCommonAtomicType() Get the most specific possible atomic type that all items in this SimpleType belong to
SequenceIterator	getTypedValue(CharSequence value, NamespaceResolver resolver, ConversionRules rules) Get the typed value corresponding to a given string value, assuming it is valid against this type
int	getWhitespaceAction() Determine how values of this simple type are whitespace-normalized.
boolean	isAtomicType() Test whether this Simple Type is an atomic type
boolean	isBuiltInType() Determine whether this is a built-in type or a user-defined type
boolean	isExternalType() Return true if this is an external object type, that is, a Saxon-defined type for external Java or .NET objects
boolean	isListType() Test whether this Simple Type is a list type
boolean	isNamespaceSensitive() Test whether this type is namespace sensitive, that is, if a namespace context is needed to translate between the lexical space and the value space.
boolean	isUnionType() Test whether this Simple Type is a union type
CharSequence	postprocess(CharSequence input) Reverse any pre-lexical facets, other than whitespace.
CharSequence	preprocess(CharSequence input) Apply any pre-lexical facets, other than whitespace.
ValidationFailure	validateContent(CharSequence value, NamespaceResolver nsResolver, ConversionRules rules) Check whether a given input string is valid according to this SimpleType

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

allowsDerivation, analyzeContentExpression, atomize, checkTypeDerivationIsOK, getBaseType, getBlock, getDerivationMethod, getDescription, getDisplayName, getFingerprint, getName, getNameCode, getSystemId, getTargetNamespace, getTypedValue, isAnonymousType, isComplexType, isIdRefType, isIdType, isSameType, isSimpleType

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

getRedefinitionLevel, getValidationStatus

Field Detail

VARIETY_ATOMIC

static final int VARIETY_ATOMIC

See Also:

Constant Field Values

VARIETY_LIST

static final int VARIETY_LIST

See Also:

Constant Field Values

VARIETY_UNION

static final int VARIETY_UNION

See Also:

Constant Field Values

VARIETY_UNSPECIFIED_SIMPLE

static final int VARIETY_UNSPECIFIED_SIMPLE

See Also:

Constant Field Values

Method Detail

isAtomicType

boolean isAtomicType()

Test whether this Simple Type is an atomic type

Specified by:

isAtomicType in interface SchemaType

Returns:

true if this is an atomic type

isListType

boolean isListType()

Test whether this Simple Type is a list type

Returns:

true if this is a list type

isUnionType

boolean isUnionType()

Test whether this Simple Type is a union type

Returns:

true if this is a union type

isExternalType

boolean isExternalType()

Return true if this is an external object type, that is, a Saxon-defined type for external Java or .NET objects

Returns:

true if this is an external type

getCommonAtomicType

AtomicType getCommonAtomicType()

Get the most specific possible atomic type that all items in this SimpleType belong to

Returns:

the lowest common supertype of all member types

isBuiltInType

boolean isBuiltInType()

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

Returns:

true if this is a built-in type

getBuiltInBaseType

SchemaType getBuiltInBaseType()

Get the built-in type from which this type is derived by restriction

Returns:

the built-in type from which this type is derived by restriction. This will not necessarily be a primitive type.

getTypedValue

SequenceIterator getTypedValue(CharSequence value,
                               NamespaceResolver resolver,
                               ConversionRules rules)
                               throws ValidationException

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

Parameters:

value - the string value

resolver - a namespace resolver used to resolve any namespace prefixes appearing in the content of values. Can supply null, in which case any namespace-sensitive content will be rejected.

rules -

Returns:

an iterator over the atomic sequence comprising the typed value. The objects returned by this SequenceIterator will all be of type AtomicValue, The next() method on the iterator throws no checked exceptions, although it is not actually declared as an UnfailingIterator.

Throws:

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

validateContent

ValidationFailure validateContent(CharSequence value,
                                  NamespaceResolver nsResolver,
                                  ConversionRules rules)

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

Returns:

null if validation succeeds; return a ValidationFailure describing the validation failure if validation fails. Note that the exception is returned rather than being thrown.

Throws:

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

isNamespaceSensitive

boolean isNamespaceSensitive()

Test whether this type is namespace sensitive, that is, if a namespace context is needed to translate between the lexical space and the value space. This is true for types derived from, or containing, QNames and NOTATIONs

Returns:

true if the type is namespace-sensitive

getWhitespaceAction

int getWhitespaceAction()

Determine how values of this simple type are whitespace-normalized.

Returns:

one of Whitespace.PRESERVE, Whitespace.COLLAPSE, Whitespace.REPLACE.

preprocess

CharSequence preprocess(CharSequence input)
                        throws ValidationException

Apply any pre-lexical facets, other than whitespace. At the moment the only such facet is saxon:preprocess

Parameters:

input - the value to be preprocessed

Returns:

the value after preprocessing

Throws:

ValidationException

postprocess

CharSequence postprocess(CharSequence input)
                         throws ValidationException

Reverse any pre-lexical facets, other than whitespace. At the moment the only such facet is saxon:preprocess. This is called when converting a value of this type to a string

Parameters:

input - the value to be postprocessed: this is the "ordinary" result of converting the value to a string

Returns:

the value after postprocessing

Throws:

ValidationException