net.sf.saxon.value

Class NestedIntegerValue

java.lang.Object

net.sf.saxon.value.AtomicValue

net.sf.saxon.value.NestedIntegerValue

All Implemented Interfaces:

java.lang.Comparable<XPathComparable>, java.lang.Iterable<AtomicValue>, AtomicMatchKey, XPathComparable, AtomicSequence, GroundedValue, IdentityComparable, Item, Sequence, ConversionResult

public class NestedIntegerValue
extends AtomicValue
implements XPathComparable, AtomicMatchKey

This class represents a dot-separated sequence of numbers such as 1.12.5, typically used as a software version number.

Although the class is implemented as an atomic type derived from xs:string, it has not been integrated into the schema type hierarchy and cannot be used directly in schema validation.

The class provides "smart" ordering, for example 1 < 1.2 < 1.12 < 1.12.6

Field Summary

Fields

Modifier and Type	Field and Description
static NestedIntegerValue	ONE
static NestedIntegerValue	TWO

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

typeLabel

Constructor Summary

Constructors

Constructor and Description
NestedIntegerValue(int[] val)
NestedIntegerValue(java.lang.String v)

Method Summary

Modifier and Type	Method and Description
NestedIntegerValue	append(int leaf)
int	compareTo(XPathComparable other)
AtomicValue	copyAsSubType(AtomicType typeLabel) Create a copy of this atomic value, with a different type label
boolean	equals(java.lang.Object o) The equals() methods on atomic values is defined to follow the semantics of eq when applied to two atomic values.
int	getDepth()
int	getLeaf()
UnicodeString	getPrimitiveStringValue() Convert the value to a string, using the serialization rules for the primitive type.
BuiltInAtomicType	getPrimitiveType() Determine the primitive type of the value.
NestedIntegerValue	getStem()
XPathComparable	getXPathComparable(StringCollator collator, int implicitTimezone) Get an object value that implements the XPath equality and ordering comparison semantics for this value.
AtomicMatchKey	getXPathMatchKey(StringCollator collator, int implicitTimezone) Get an object value that implements the XPath equality comparison semantics for this value.
int	hashCode() Returns a hash code value for the object.
static NestedIntegerValue	parse(java.lang.String v)

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

asAtomic, asMapKey, atomize, checkPermittedContents, checkValidInJavascript, effectiveBooleanValue, getCanonicalLexicalRepresentation, getCardinality, getComponent, getGenre, getItemType, getLength, getUnicodeStringValue, getUType, head, identityHashCode, isIdentical, isIdentical, isNaN, isUntypedAtomic, itemAt, iterate, iterator, setTypeLabel, show, toShortString, toString

Methods inherited from class java.lang.Object

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

Methods inherited from interface net.sf.saxon.expr.sort.AtomicMatchKey

asAtomic

Methods inherited from interface net.sf.saxon.om.Item

getStringValue, isStreamed, reduce, subsequence

Methods inherited from interface net.sf.saxon.om.GroundedValue

asIterable, concatenate, containsNode, materialize

Methods inherited from interface net.sf.saxon.om.Sequence

makeRepeatable

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Field Detail

ONE

public static NestedIntegerValue ONE

TWO

public static NestedIntegerValue TWO

Constructor Detail

NestedIntegerValue

public NestedIntegerValue(java.lang.String v)
                   throws XPathException

Throws:

XPathException

NestedIntegerValue

public NestedIntegerValue(int[] val)

Method Detail

parse

public static NestedIntegerValue parse(java.lang.String v)
                                throws XPathException

Throws:

XPathException

append

public NestedIntegerValue append(int leaf)

getStem

public NestedIntegerValue getStem()

getDepth

public int getDepth()

getLeaf

public int getLeaf()

getXPathComparable

public XPathComparable getXPathComparable(StringCollator collator,
                                          int implicitTimezone)
                                   throws NoDynamicContextException

Description copied from class: AtomicValue

Get an object value that implements the XPath equality and ordering comparison semantics for this value. A collation is supplied for comparing strings, and an implicit timezone for comparing date/time values that have no saved timezone. An atomic value may return itself as the result, provided that its ordering rules are independent of the collation and timezone, and provided that it implements the XPathComparable interface: which means that its compareTo, equals, and hashCode methods must be compatible with the rules for XPath value comparisons.

Specified by:

getXPathComparable in class AtomicValue

Parameters:

collator - the collation to be used when comparing strings

implicitTimezone - the implicit timezone in the dynamic context, used when comparing dates/times with and without timezone

Returns:

an Object that implements the XPath value comparison semantics with respect to this atomic value. For an atomic type that is not ordered (according to XPath rules), return null.

Throws:

NoDynamicContextException - if the supplied implicit timezone is "NO_TIMEZONE" (meaning unknown), and the implicit timezone is actually required because the value in question is a date/time value with no timezone. This can cause a failure to evaluate expressions statically (because the implicit timezone is not known statically), and it will then be caught, meaning that the expression has to be evaluated dynamically.

getXPathMatchKey

public AtomicMatchKey getXPathMatchKey(StringCollator collator,
                                       int implicitTimezone)

Description copied from class: AtomicValue

Get an object value that implements the XPath equality comparison semantics for this value. A collation is supplied for comparing strings, and an implicit timezone for comparing date/time values that have no saved timezone. The returned object supports equality matching only, not ordering. An atomic value may return itself as its own AtomicMatchKey provided that its equality semantics are context-free.

Specified by:

getXPathMatchKey in class AtomicValue

Parameters:

collator - the collation to be used when comparing strings

implicitTimezone - the implicit timezone in the dynamic context, used when comparing dates/times with and without timezone

Returns:

an Object whose equals() and hashCode() methods implement the XPath comparison semantics with respect to this atomic value. If ordered is specified, the result will either be null if no ordering is defined, or will be a Comparable

equals

public boolean equals(java.lang.Object o)

Description copied from class: AtomicValue

The equals() methods on atomic values is defined to follow the semantics of eq when applied to two atomic values. When the other operand is not an atomic value, the result is undefined (may be false, may be an exception). When the other operand is an atomic value that cannot be compared with this one, the method must throw a ClassCastException.

The hashCode() method is consistent with equals().

Overrides:

equals in class AtomicValue

Parameters:

o - the other value

Returns:

true (in a subclass) if the other operand is an atomic value and the two values are equal as defined by the XPath eq operator

hashCode

public int hashCode()

Returns a hash code value for the object.

Overrides:

hashCode in class AtomicValue

getPrimitiveType

public BuiltInAtomicType getPrimitiveType()

Description copied from class: AtomicValue

Determine the primitive type of the value. This delivers the same answer as getItemType().getPrimitiveItemType(). The primitive types are the 19 primitive types of XML Schema, plus xs:integer, xs:dayTimeDuration and xs:yearMonthDuration, and xs:untypedAtomic. For external objects, the result is xs:anyAtomicType.

Specified by:

getPrimitiveType in class AtomicValue

Returns:

the primitive type

copyAsSubType

public AtomicValue copyAsSubType(AtomicType typeLabel)

Description copied from class: AtomicValue

Create a copy of this atomic value, with a different type label

Specified by:

copyAsSubType in class AtomicValue

Parameters:

typeLabel - the type label of the new copy. The caller is responsible for checking that the value actually conforms to this type.

Returns:

the copied value

getPrimitiveStringValue

public UnicodeString getPrimitiveStringValue()

Description copied from class: AtomicValue

Convert the value to a string, using the serialization rules for the primitive type. This is the result of conversion to a string except that postprocessing defined by the saxon:preprocess facet is not (yet) applied.

Specified by:

getPrimitiveStringValue in class AtomicValue

Returns:

the value converted to a string according to the rules for the primitive type

compareTo

public int compareTo(XPathComparable other)

Specified by:

compareTo in interface java.lang.Comparable<XPathComparable>