net.sf.saxon.value
Class RestrictedStringValue

java.lang.Object
  net.sf.saxon.value.Value
      net.sf.saxon.value.AtomicValue
          net.sf.saxon.value.StringValue
              net.sf.saxon.value.RestrictedStringValue

All Implemented Interfaces:

Expression, Item, java.io.Serializable, ValueRepresentation

public final class RestrictedStringValue

extends StringValue

A value conforming to one of the built-in subtypes of String, specifically normalizedString, token, language, Name, NCName, ID, IDREF, ENTITY, NMTOKEN. This class doesnt' handle the types derived by list: IDREFS, NMTOKENS, ENTITIES.

See Also:

Serialized Form

Nested Class Summary

Nested classes inherited from class net.sf.saxon.value.StringValue

StringValue.CharacterIterator

Field Summary

Fields inherited from class net.sf.saxon.value.StringValue

EMPTY_STRING, length, SINGLE_SPACE, value

Fields inherited from class net.sf.saxon.value.Value

EMPTY_CLASS_ARRAY

Fields inherited from interface net.sf.saxon.om.ValueRepresentation

EMPTY_VALUE_ARRAY

Fields inherited from interface net.sf.saxon.expr.Expression

EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD

Constructor Summary

RestrictedStringValue()

Method Summary

AtomicValue	convertPrimitive(BuiltInAtomicType requiredType, boolean validate, XPathContext context) Convert to target data type
ItemType	getItemType(TypeHierarchy th) Return the type of the expression
static AtomicValue	makeRestrictedString(java.lang.CharSequence value, int type, NameChecker checker) Factory method to create a restricted string value from a string
java.lang.String	toString() Get string value.

Methods inherited from class net.sf.saxon.value.StringValue

contract, convertStringToAtomicType, convertStringToBuiltInType, convertToJava, effectiveBooleanValue, equals, expand, getStringLength, getStringLength, getStringValue, getStringValueCS, hashCode, iterateCharacters, makeStringValue, schemaEquals

Methods inherited from class net.sf.saxon.value.AtomicValue

checkPermittedContents, convert, convert, display, evaluateAsString, evaluateItem, getCardinality, getComponent, getImplementationMethod, getLength, getPrimitiveValue, getTypedValue, hasBuiltInType, iterate, process

Methods inherited from class net.sf.saxon.value.Value

asItem, asIterator, asValue, collapseWhitespace, convert, convertJavaObjectToXPath, getDependencies, getIterator, getParentExpression, getSpecialProperties, itemAt, iterateSubExpressions, makeQNameValue, normalizeWhitespace, optimize, promote, reduce, simplify, stringToNumber, trimWhitespace, typeCheck

Methods inherited from class java.lang.Object

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

Constructor Detail

RestrictedStringValue

public RestrictedStringValue()

Method Detail

makeRestrictedString

public static AtomicValue makeRestrictedString(java.lang.CharSequence value,
                                               int type,
                                               NameChecker checker)

Factory method to create a restricted string value from a string

Parameters:

value - the String value. Null is taken as equivalent to "".

checker - a NameChecker if validation is required, null if the caller already knows that the value is valid

Returns:

either the required RestrictedStringValue if the value is valid, or an ErrorValue encapsulating the error message if not.

getItemType

public ItemType getItemType(TypeHierarchy th)

Return the type of the expression

Specified by:

getItemType in interface Expression

Overrides:

getItemType in class StringValue

Parameters:

th -

Returns:

Type.STRING (always)

convertPrimitive

public AtomicValue convertPrimitive(BuiltInAtomicType requiredType,
                                    boolean validate,
                                    XPathContext context)

Convert to target data type

Overrides:

convertPrimitive in class StringValue

Parameters:

requiredType - an integer identifying the required atomic type

context -

validate - true if validation is required. If set to false, the caller guarantees that the value is valid for the target data type, and that further validation is therefore not required. Note that a validation failure may be reported even if validation was not requested.

Returns:

an AtomicValue, a value of the required type; or an ErrorValue

toString

public java.lang.String toString()

Description copied from class: AtomicValue

Get string value. In general toString() for an atomic value displays the value as it would be written in XPath: that is, as a literal if available, or as a call on a constructor function otherwise.

Overrides:

toString in class StringValue