net.sf.saxon.s9api

Class XdmAtomicValue

java.lang.Object

net.sf.saxon.s9api.XdmValue

net.sf.saxon.s9api.XdmItem

net.sf.saxon.s9api.XdmAtomicValue

All Implemented Interfaces:

java.lang.Iterable<XdmItem>

public class XdmAtomicValue
extends XdmItem

The class XdmAtomicValue represents an item in an XPath 2.0 sequence that is an atomic value. The value may belong to any of the 19 primitive types defined in XML Schema, or to a type derived from these primitive types, or the XPath 2.0 type xs:untypedAtomic. The type may be either a built-in type or a user-defined type.

An XdmAtomicValue is immutable.

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	XdmAtomicValue(AtomicValue value, boolean flag)
	XdmAtomicValue(java.math.BigDecimal value) Create an xs:decimal atomic value
	XdmAtomicValue(boolean value) Create an xs:boolean atomic value
	XdmAtomicValue(byte value) Create an xs:short atomic value
	XdmAtomicValue(double value) Create an xs:double atomic value
	XdmAtomicValue(float value) Create an xs:float atomic value
	XdmAtomicValue(int value) Create an xs:int atomic value
	XdmAtomicValue(long value) Create an xs:long atomic value
	XdmAtomicValue(QName value) Create an xs:QName atomic value
	XdmAtomicValue(short value) Create an xs:short atomic value
	XdmAtomicValue(java.lang.String value) Create an xs:string atomic value
	XdmAtomicValue(java.lang.String lexicalForm, ItemType type) Construct an atomic value given its lexical representation and the name of the required built-in atomic type.
	XdmAtomicValue(java.net.URI value) Create an xs:anyURI atomic value

Method Summary

Modifier and Type	Method and Description
boolean	equals(java.lang.Object other) Compare values for equality.
boolean	getBooleanValue() Get the value converted to a boolean using the XPath casting rules
java.math.BigDecimal	getDecimalValue() Get the value converted to a decimal using the XPath casting rules
double	getDoubleValue() Get the value converted to a double using the XPath casting rules.
long	getLongValue() Get the value converted to an integer using the XPath casting rules
QName	getPrimitiveTypeName() Get the primitive type of this atomic value, as a QName.
QName	getQNameValue() For an XdmAtomicValue representing an xs:QName or xs:NOTATION value, get the value as an instance of QName
QName	getTypeName() Get the type of this atomic value, as a QName.
AtomicValue	getUnderlyingValue() Get the underlying implementation object representing the value.
java.lang.Object	getValue() Get the value as a Java object of the nearest equivalent type.
int	hashCode() Get a hashcode that reflects the rules for equality matching
static XdmAtomicValue	makeAtomicValue(java.lang.Object value) Attempt conversion from an arbitrary Java object
java.lang.String	toString() Get the result of converting the atomic value to a string.

Methods inherited from class net.sf.saxon.s9api.XdmItem

asMap, getStringValue, isAtomicValue, matches, size, stream, wrapItem, wrapItem, wrapItem

Methods inherited from class net.sf.saxon.s9api.XdmValue

append, documentOrder, fromGroundedValue, itemAt, iterator, makeSequence, makeValue, select, setValue, wrap, wrap

Methods inherited from class java.lang.Object

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

Methods inherited from interface java.lang.Iterable

forEach, spliterator

Constructor Detail

XdmAtomicValue

protected XdmAtomicValue(AtomicValue value,
                         boolean flag)

XdmAtomicValue

public XdmAtomicValue(boolean value)

Create an xs:boolean atomic value

Parameters:

value - the boolean value, true or false

XdmAtomicValue

public XdmAtomicValue(long value)

Create an xs:long atomic value

Parameters:

value - the xs:integer value, as a long

XdmAtomicValue

public XdmAtomicValue(int value)

Create an xs:int atomic value

Parameters:

value - the xs:integer value, as a long

XdmAtomicValue

public XdmAtomicValue(short value)

Create an xs:short atomic value

Parameters:

value - the xs:integer value, as a long

XdmAtomicValue

public XdmAtomicValue(byte value)

Create an xs:short atomic value

Parameters:

value - the xs:integer value, as a long

XdmAtomicValue

public XdmAtomicValue(java.math.BigDecimal value)

Create an xs:decimal atomic value

Parameters:

value - the xs:decimal value, as a BigDecimal

XdmAtomicValue

public XdmAtomicValue(double value)

Create an xs:double atomic value

Parameters:

value - the xs:double value, as a double

XdmAtomicValue

public XdmAtomicValue(float value)

Create an xs:float atomic value

Parameters:

value - the xs:float value, as a float

XdmAtomicValue

public XdmAtomicValue(java.lang.String value)

Create an xs:string atomic value

Parameters:

value - the xs:string value, as a string

XdmAtomicValue

public XdmAtomicValue(java.net.URI value)

Create an xs:anyURI atomic value

Parameters:

value - the xs:anyURI value, as a URI

XdmAtomicValue

public XdmAtomicValue(QName value)

Create an xs:QName atomic value

Parameters:

value - the xs:QName value, as a QName

XdmAtomicValue

public XdmAtomicValue(java.lang.String lexicalForm,
                      ItemType type)
               throws SaxonApiException

Construct an atomic value given its lexical representation and the name of the required built-in atomic type.

This method cannot be used to construct values that are namespace-sensitive (QNames and Notations)

Parameters:

lexicalForm - the value in the lexical space of the target data type. More strictly, the input value before the actions of the whitespace facet for the target data type are applied.

type - the required atomic type. This must either be one of the built-in atomic types defined in XML Schema, or a user-defined type whose definition appears in a schema that is known to the Processor. It must not be an abstract type.

Throws:

SaxonApiException - if the type is unknown, or is not atomic, or is namespace-sensitive; or if the value supplied in lexicalForm is not in the lexical space of the specified atomic type.

Method Detail

makeAtomicValue

public static XdmAtomicValue makeAtomicValue(java.lang.Object value)

Attempt conversion from an arbitrary Java object

Parameters:

value - the value to convert from. This must either be an instance of AtomicValue or QName, or one of the basic Java types Boolean, Integer, Long, Short, Character, Byte, String, Double, Float, BigDecimal, BigInteger, or URI

Returns:

the result of the conversion if successful

Throws:

java.lang.IllegalArgumentException - if conversion from this kind of Object is not supported

getUnderlyingValue

public AtomicValue getUnderlyingValue()

Get the underlying implementation object representing the value. This method allows access to lower-level Saxon functionality, including classes and methods that offer no guarantee of stability across releases.

Overrides:

getUnderlyingValue in class XdmItem

Returns:

the underlying implementation object representing the value

Since:

9.8 (previously inherited from XdmValue which returns a Sequence)

toString

public java.lang.String toString()

Get the result of converting the atomic value to a string. This has the same effect as the XPath string() function.

Overrides:

toString in class XdmValue

Returns:

a string representation of the value

getPrimitiveTypeName

public QName getPrimitiveTypeName()

Get the primitive type of this atomic value, as a QName. The primitive types for this purpose 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.

Returns:

a QName naming the primitive type of this atomic value. This will always be an atomic type.

getTypeName

public QName getTypeName()

Get the type of this atomic value, as a QName.

Returns:

a QName naming the type of this atomic value. This will always be an atomic type.

getValue

public java.lang.Object getValue()

Get the value as a Java object of the nearest equivalent type.

The result type is as follows:

XPath type	Java class
xs:string	String
xs:integer	java.math.BigInteger
xs:decimal	java.math.BigDecimal
xs:double	Double
xs:float	Float
xs:boolean	Boolean
xs:QName	QName
xs:anyURI	String
xs:untypedAtomic	String
Other types	currently String, but this may change in the future

Returns:

the value, converted to a Java object of a suitable type

getBooleanValue

public boolean getBooleanValue()
                        throws SaxonApiException

Get the value converted to a boolean using the XPath casting rules

Returns:

the result of converting to a boolean (Note: this is not the same as the effective boolean value).

Throws:

SaxonApiException - if the value cannot be cast to a boolean

getLongValue

public long getLongValue()
                  throws SaxonApiException

Get the value converted to an integer using the XPath casting rules

Returns:

the result of converting to an integer

Throws:

SaxonApiException - if the value cannot be cast to an integer

getDoubleValue

public double getDoubleValue()
                      throws SaxonApiException

Get the value converted to a double using the XPath casting rules.

If the value is a string, the XSD 1.1 rules are used, which means that the string "+INF" is recognised.

Returns:

the result of converting to a double

Throws:

SaxonApiException - if the value cannot be cast to a double

getDecimalValue

public java.math.BigDecimal getDecimalValue()
                                     throws SaxonApiException

Get the value converted to a decimal using the XPath casting rules

Returns:

the result of converting to a decimal

Throws:

SaxonApiException - if the value cannot be cast to a double

getQNameValue

public QName getQNameValue()

For an XdmAtomicValue representing an xs:QName or xs:NOTATION value, get the value as an instance of QName

Returns:

the corresponding QName if the value is an xs:QName or xs:NOTATION, or null otherwise

equals

public boolean equals(java.lang.Object other)

Compare values for equality. Two atomic values are considered equal if they are equal according to the rules of the op:is-same-key() operation, used when comparing keys in maps

Overrides:

equals in class java.lang.Object

Parameters:

other - the value to be compared

Returns:

true if the values are deemed equal

hashCode

public int hashCode()

Get a hashcode that reflects the rules for equality matching

Overrides:

hashCode in class java.lang.Object

Returns:

a suitable hashcode