net.sf.saxon.value

Class NestedIntegerValue

java.lang.Object

net.sf.saxon.om.AbstractItem

net.sf.saxon.value.AtomicValue

net.sf.saxon.value.NestedIntegerValue

All Implemented Interfaces:

Comparable, Iterable<AtomicValue>, PullEvent, AtomicMatchKey, AtomicSequence, GroundedValue, IdentityComparable, Item, Sequence, ConversionResult

public class NestedIntegerValue
extends AtomicValue
implements Comparable, 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

NaN_MATCH_KEY, typeLabel

Constructor Summary

Constructors

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

Method Summary

Methods

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

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

asAtomic, checkPermittedContents, effectiveBooleanValue, getCanonicalLexicalRepresentation, getCardinality, getComponent, getItemType, getStringValue, getStringValueCS, head, identityHashCode, isIdentical, isIdentical, isNaN, itemAt, iterate, iterator, process, setTypeLabel, toString

Methods inherited from class net.sf.saxon.om.AbstractItem

getLength, reduce, subsequence

Methods inherited from class java.lang.Object

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

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

asAtomic

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

getLength

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

reduce, subsequence

Field Detail

ONE

public static NestedIntegerValue ONE

TWO

public static NestedIntegerValue TWO

Constructor Detail

NestedIntegerValue

public NestedIntegerValue(String v)
                   throws XPathException

Throws:

XPathException

NestedIntegerValue

public NestedIntegerValue(int[] val)

Method Detail

parse

public static NestedIntegerValue parse(String v)
                                throws XPathException

Throws:

XPathException

append

public NestedIntegerValue append(int leaf)

getStem

public NestedIntegerValue getStem()

getLeaf

public int getLeaf()

getSchemaComparable

public Comparable getSchemaComparable()

Description copied from class: AtomicValue

Get a Comparable value that implements the XML Schema ordering comparison semantics for this value. An implementation must be provided for all atomic types.

In the case of data types that are partially ordered, the returned Comparable extends the standard semantics of the compareTo() method by returning the value SequenceTool.INDETERMINATE_ORDERING when there is no defined order relationship between two given values. This value is also returned when two values of different types are compared.

Specified by:

getSchemaComparable in interface AtomicSequence

Specified by:

getSchemaComparable in class AtomicValue

Returns:

a Comparable that follows XML Schema comparison rules

getXPathComparable

public AtomicMatchKey getXPathComparable(boolean ordered,
                                StringCollator collator,
                                int implicitTimezone)

Description copied from class: AtomicValue

Get an object value that implements the XPath equality and ordering comparison semantics for this value. If the ordered parameter is set to true, the result will be a Comparable and will support a compareTo() method with the semantics of the XPath lt/gt operator, provided that the other operand is also obtained using the getXPathComparable() method. In all cases the result will support equals() and hashCode() methods that support the semantics of the XPath eq operator, again provided that the other operand is also obtained using the getXPathComparable() method. A context argument is supplied for use in cases where the comparison semantics are context-sensitive, for example where they depend on the implicit timezone or the default collation.

Specified by:

getXPathComparable in class AtomicValue

Parameters:

ordered - true if an ordered comparison is required. In this case the result is null if the type is unordered; in other cases the returned value will be a Comparable.

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(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().

Specified by:

equals in class AtomicValue

Parameters:

o - the other value

Returns:

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

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

protected CharSequence 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(Object other)

Specified by:

compareTo in interface Comparable