Package net.sf.saxon.value
Class UntypedAtomicValue
- java.lang.Object
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- net.sf.saxon.value.Value
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- net.sf.saxon.value.AtomicValue
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- net.sf.saxon.value.StringValue
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- net.sf.saxon.value.UntypedAtomicValue
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- All Implemented Interfaces:
java.io.Serializable
,Expression
,Item
,ValueRepresentation
public class UntypedAtomicValue extends StringValue
An Untyped Atomic value. This inherits from StringValue for implementation convenience, even though an untypedAtomic value is not a String in the data model type hierarchy.- See Also:
- Serialized Form
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Nested Class Summary
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Nested classes/interfaces inherited from class net.sf.saxon.value.StringValue
StringValue.CharacterIterator
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Field Summary
Fields Modifier and Type Field Description (package private) DoubleValue
doubleValue
static UntypedAtomicValue
ZERO_LENGTH_UNTYPED
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Fields inherited from class net.sf.saxon.value.StringValue
EMPTY_STRING, FALSE, length, SINGLE_SPACE, TRUE, value
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Fields inherited from class net.sf.saxon.value.Value
EMPTY_CLASS_ARRAY
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Fields inherited from interface net.sf.saxon.expr.Expression
EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD
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Fields inherited from interface net.sf.saxon.om.ValueRepresentation
EMPTY_VALUE_ARRAY
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Constructor Summary
Constructors Constructor Description UntypedAtomicValue(java.lang.CharSequence value)
Constructor
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Method Summary
All Methods Instance Methods Concrete Methods Modifier and Type Method Description int
compareTo(java.lang.Object other, java.util.Comparator collator, XPathContext context)
Compare an untypedAtomic value with another value, using a given collator to perform any string comparisons.AtomicValue
convertPrimitive(BuiltInAtomicType requiredType, boolean validate, XPathContext context)
Convert to target data typeItemType
getItemType(TypeHierarchy th)
Return the type of the expression-
Methods inherited from class net.sf.saxon.value.StringValue
codepointEquals, containsSurrogatePairs, contract, convertStringToAtomicType, convertStringToBuiltInType, convertToJava, effectiveBooleanValue, equals, expand, expand, getStringLength, getStringLength, getStringValue, getStringValueCS, hashCode, isZeroLength, iterateCharacters, makeStringValue, toString
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Methods inherited from class net.sf.saxon.value.AtomicValue
checkPermittedContents, convert, convert, display, evaluateAsString, evaluateItem, getCardinality, getComponent, getImplementationMethod, getLength, getPrimitiveValue, getTypedValue, hasBuiltInType, iterate, process
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Methods inherited from class net.sf.saxon.value.Value
asItem, asIterator, asValue, convert, convertJavaObjectToXPath, getDependencies, getIterator, getParentExpression, getSpecialProperties, itemAt, iterateSubExpressions, makeQNameValue, optimize, promote, reduce, simplify, stringToNumber, typeCheck
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Field Detail
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ZERO_LENGTH_UNTYPED
public static final UntypedAtomicValue ZERO_LENGTH_UNTYPED
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doubleValue
DoubleValue doubleValue
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Method Detail
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getItemType
public ItemType getItemType(TypeHierarchy th)
Return the type of the expression- Specified by:
getItemType
in interfaceExpression
- Overrides:
getItemType
in classStringValue
- Parameters:
th
-- Returns:
- Type.UNTYPED_ATOMIC (always)
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convertPrimitive
public AtomicValue convertPrimitive(BuiltInAtomicType requiredType, boolean validate, XPathContext context)
Convert to target data type- Overrides:
convertPrimitive
in classStringValue
- Parameters:
requiredType
- type code of the required atomic typevalidate
- 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.context
- The conversion context to be used. This is required at present only when converting to a date or time: it provides the implicit timezone.- Returns:
- the result of the conversion, if successful. If unsuccessful, the value returned will be a ValidationErrorValue. The caller must check for this condition. No exception is thrown, instead the exception will be encapsulated within the ErrorValue.
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compareTo
public int compareTo(java.lang.Object other, java.util.Comparator collator, XPathContext context)
Compare an untypedAtomic value with another value, using a given collator to perform any string comparisons. This works by converting the untypedAtomic value to the type of the other operand, which is the correct behavior for operators like "=" and "!=", but not for "eq" and "ne": in the latter case, the untypedAtomic value is converted to a string and this method is therefore not used.- Returns:
- -1 if the this value is less than the other, 0 if they are equal, +1 if this value is greater.
- Throws:
java.lang.ClassCastException
- if the value cannot be cast to the type of the other operand
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