public final class AnyURIValue extends StringValue
This is implemented as a subtype of StringValue even though xs:anyURI is not a subtype of xs:string in the XPath type hierarchy. This enables type promotion from URI to String to happen automatically in most cases where it is appropriate.
This implementation of xs:anyURI allows any string to be contained in the value space. It is possible to validate that the string is a "valid URI" in the sense of XML Schema Part 2 (which refers to the XLink specification and to RFC 2396); however, this validation is optional, and is not carried out by default. In particular, there is no constraint that namespace URIs, collation URIs, and the like should be valid URIs. However, casting from strings to xs:anyURI does invoke validation.
StringValue.CharacterIterator
Modifier and Type | Field and Description |
---|---|
static AnyURIValue |
EMPTY_URI |
EMPTY_STRING, length, SINGLE_SPACE, value
EMPTY_CLASS_ARRAY
EMPTY_VALUE_ARRAY
EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD
Constructor and Description |
---|
AnyURIValue(CharSequence value)
Constructor
|
Modifier and Type | Method and Description |
---|---|
AtomicValue |
convertPrimitive(BuiltInAtomicType requiredType,
boolean validate,
XPathContext context)
Convert to target data type
|
Object |
convertToJava(Class target,
XPathContext context)
Convert to Java object (for passing to external functions)
|
boolean |
equals(Object other)
Determine if two AnyURIValues are equal, according to XML Schema rules.
|
ItemType |
getItemType(TypeHierarchy th)
Return the type of the expression
|
static boolean |
isValidURI(CharSequence value)
Check whether a string consititutes a valid URI
|
contract, convertStringToAtomicType, convertStringToBuiltInType, effectiveBooleanValue, expand, getStringLength, getStringLength, getStringValue, getStringValueCS, hashCode, iterateCharacters, makeStringValue, schemaEquals, toString
checkPermittedContents, convert, convert, display, evaluateAsString, evaluateItem, getCardinality, getComponent, getImplementationMethod, getLength, getPrimitiveValue, getTypedValue, hasBuiltInType, iterate, process
asItem, asIterator, asValue, collapseWhitespace, convert, convertJavaObjectToXPath, getDependencies, getIterator, getParentExpression, getSpecialProperties, itemAt, iterateSubExpressions, makeQNameValue, normalizeWhitespace, optimize, promote, reduce, simplify, stringToNumber, trimWhitespace, typeCheck
public static final AnyURIValue EMPTY_URI
public AnyURIValue(CharSequence value)
value
- the String value. Null is taken as equivalent to "".public static boolean isValidURI(CharSequence value)
public AtomicValue convertPrimitive(BuiltInAtomicType requiredType, boolean validate, XPathContext context)
convertPrimitive
in class StringValue
requiredType
- integer code representing the item type requiredcontext
- 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.public ItemType getItemType(TypeHierarchy th)
getItemType
in interface Expression
getItemType
in class StringValue
th
- public boolean equals(Object other)
equals
in class StringValue
ClassCastException
- if the values are not comparablepublic Object convertToJava(Class target, XPathContext context) throws XPathException
convertToJava
in class StringValue
target
- the Java class to which conversion is requiredXPathException
- if conversion to this target type is not possible