org.apache.jena.ext.xerces.jaxp.datatype

Class DatatypeFactoryImpl

java.lang.Object

javax.xml.datatype.DatatypeFactory

org.apache.jena.ext.xerces.jaxp.datatype.DatatypeFactoryImpl

public class DatatypeFactoryImpl
extends DatatypeFactory

Factory that creates new javax.xml.datatype Objects that map XML to/from Java Objects.

DatatypeFactory.newInstance() is used to create a new DatatypeFactory. The following implementation resolution mechanisms are used in the following order:

1. If the system property specified by DatatypeFactory.DATATYPEFACTORY_PROPERTY, "javax.xml.datatype.DatatypeFactory", exists, a class with the name of the property's value is instantiated. Any Exception thrown during the instantiation process is wrapped as a DatatypeConfigurationException.
2. If the file ${JAVA_HOME}/lib/jaxp.properties exists, it is loaded in a Properties Object. The Properties Object is then queried for the property as documented in the prior step and processed as documented in the prior step.
3. The services resolution mechanism is used, e.g. META-INF/services/java.xml.datatype.DatatypeFactory. Any Exception thrown during the instantiation process is wrapped as a DatatypeConfigurationException.
4. The final mechanism is to attempt to instantiate the Class specified by DatatypeFactory.DATATYPEFACTORY_IMPLEMENTATION_CLASS, "javax.xml.datatype.DatatypeFactoryImpl". Any Exception thrown during the instantiation process is wrapped as a DatatypeConfigurationException.

Version:

$Id: DatatypeFactoryImpl.java 554381 2007-07-08 16:03:48Z mrglavas $

Author:

Joseph Fialli, Jeff Suttor

Field Summary

Fields inherited from class javax.xml.datatype.DatatypeFactory

DATATYPEFACTORY_IMPLEMENTATION_CLASS, DATATYPEFACTORY_PROPERTY

Constructor Summary

Constructors

Constructor and Description
DatatypeFactoryImpl() Public constructor is empty..

Method Summary

Modifier and Type	Method and Description
Duration	newDuration(boolean isPositive, BigInteger years, BigInteger months, BigInteger days, BigInteger hours, BigInteger minutes, BigDecimal seconds) Obtain a new instance of a Duration specifying the Duration as isPositive, years, months, days, hours, minutes, seconds.
Duration	newDuration(long durationInMilliseconds) Obtain a new instance of a Duration specifying the Duration as milliseconds.
Duration	newDuration(String lexicalRepresentation) Obtain a new instance of a Duration specifying the Duration as its string representation, "PnYnMnDTnHnMnS", as defined in XML Schema 1.0 section 3.2.6.1.
XMLGregorianCalendar	newXMLGregorianCalendar() Create a new instance of an XMLGregorianCalendar.
XMLGregorianCalendar	newXMLGregorianCalendar(BigInteger year, int month, int day, int hour, int minute, int second, BigDecimal fractionalSecond, int timezone) Constructor allowing for complete value spaces allowed by W3C XML Schema 1.0 recommendation for xsd:dateTime and related builtin datatypes.
XMLGregorianCalendar	newXMLGregorianCalendar(GregorianCalendar cal) Create an XMLGregorianCalendar from a GregorianCalendar.
XMLGregorianCalendar	newXMLGregorianCalendar(int year, int month, int day, int hour, int minute, int second, int millisecond, int timezone) Constructor of value spaces that a java.util.GregorianCalendar instance would need to convert to an XMLGregorianCalendar instance.
XMLGregorianCalendar	newXMLGregorianCalendar(String lexicalRepresentation) Create a new XMLGregorianCalendar by parsing the String as a lexical representation.

Methods inherited from class javax.xml.datatype.DatatypeFactory

newDuration, newDurationDayTime, newDurationDayTime, newDurationDayTime, newDurationDayTime, newDurationYearMonth, newDurationYearMonth, newDurationYearMonth, newDurationYearMonth, newInstance, newInstance, newXMLGregorianCalendarDate, newXMLGregorianCalendarTime, newXMLGregorianCalendarTime, newXMLGregorianCalendarTime

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

DatatypeFactoryImpl

public DatatypeFactoryImpl()

Public constructor is empty..

Use DatatypeFactory.newInstance() to create a DatatypeFactory.

Method Detail

newDuration

public Duration newDuration(String lexicalRepresentation)

Obtain a new instance of a Duration specifying the Duration as its string representation, "PnYnMnDTnHnMnS", as defined in XML Schema 1.0 section 3.2.6.1.

XML Schema Part 2: Datatypes, 3.2.6 duration, defines duration as:

duration represents a duration of time. The value space of duration is a six-dimensional space where the coordinates designate the Gregorian year, month, day, hour, minute, and second components defined in Section 5.5.3.2 of [ISO 8601], respectively. These components are ordered in their significance by their order of appearance i.e. as year, month, day, hour, minute, and second.

All six values are set and availabe from the created Duration

The XML Schema specification states that values can be of an arbitrary size. Implementations may chose not to or be incapable of supporting arbitrarily large and/or small values. An UnsupportedOperationException will be thrown with a message indicating implementation limits if implementation capacities are exceeded.

Specified by:

newDuration in class DatatypeFactory

Parameters:

lexicalRepresentation - String representation of a Duration.

Returns:

New Duration created from parsing the lexicalRepresentation.

Throws:

IllegalArgumentException - If lexicalRepresentation is not a valid representation of a Duration.

UnsupportedOperationException - If implementation cannot support requested values.

NullPointerException - if lexicalRepresentation is null.

newDuration

public Duration newDuration(long durationInMilliseconds)

Obtain a new instance of a Duration specifying the Duration as milliseconds.

XML Schema Part 2: Datatypes, 3.2.6 duration, defines duration as:

duration represents a duration of time. The value space of duration is a six-dimensional space where the coordinates designate the Gregorian year, month, day, hour, minute, and second components defined in Section 5.5.3.2 of [ISO 8601], respectively. These components are ordered in their significance by their order of appearance i.e. as year, month, day, hour, minute, and second.

All six values are set by computing their values from the specified milliseconds and are availabe using the get methods of the created Duration. The values conform to and are defined by:

• ISO 8601:2000(E) Section 5.5.3.2 Alternative format
• W3C XML Schema 1.0 Part 2, Appendix D, ISO 8601 Date and Time Formats
• XMLGregorianCalendar Date/Time Datatype Field Mapping Between XML Schema 1.0 and Java Representation

The default start instance is defined by GregorianCalendar's use of the start of the epoch: i.e., Calendar.YEAR = 1970, Calendar.MONTH = Calendar.JANUARY, Calendar.DATE = 1, etc. This is important as there are variations in the Gregorian Calendar, e.g. leap years have different days in the month = Calendar.FEBRUARY so the result of Duration.getMonths() and Duration.getDays() can be influenced.

Specified by:

newDuration in class DatatypeFactory

Parameters:

durationInMilliseconds - Duration in milliseconds to create.

Returns:

New Duration representing durationInMilliseconds.

newDuration

public Duration newDuration(boolean isPositive,
                            BigInteger years,
                            BigInteger months,
                            BigInteger days,
                            BigInteger hours,
                            BigInteger minutes,
                            BigDecimal seconds)

Obtain a new instance of a Duration specifying the Duration as isPositive, years, months, days, hours, minutes, seconds.

The XML Schema specification states that values can be of an arbitrary size. Implementations may chose not to or be incapable of supporting arbitrarily large and/or small values. An UnsupportedOperationException will be thrown with a message indicating implementation limits if implementation capacities are exceeded.

Specified by:

newDuration in class DatatypeFactory

Parameters:

isPositive - Set to false to create a negative duration. When the length of the duration is zero, this parameter will be ignored.

years - of this Duration

months - of this Duration

days - of this Duration

hours - of this Duration

minutes - of this Duration

seconds - of this Duration

Returns:

New Duration created from the specified values.

Throws:

IllegalArgumentException - If values are not a valid representation of a Duration.

UnsupportedOperationException - If implementation cannot support requested values.

NullPointerException - If any values are null.

See Also:

newDuration(boolean isPositive, BigInteger years, BigInteger months, BigInteger days, BigInteger hours, BigInteger minutes, BigDecimal seconds)

newXMLGregorianCalendar

public XMLGregorianCalendar newXMLGregorianCalendar()

Create a new instance of an XMLGregorianCalendar.

All date/time datatype fields set to DatatypeConstants.FIELD_UNDEFINED or null.

Specified by:

newXMLGregorianCalendar in class DatatypeFactory

Returns:

New XMLGregorianCalendar with all date/time datatype fields set to DatatypeConstants.FIELD_UNDEFINED or null.

newXMLGregorianCalendar

public XMLGregorianCalendar newXMLGregorianCalendar(String lexicalRepresentation)

Create a new XMLGregorianCalendar by parsing the String as a lexical representation.

Parsing the lexical string representation is defined in XML Schema 1.0 Part 2, Section 3.2.[7-14].1, Lexical Representation.

The string representation may not have any leading and trailing whitespaces.

The parsing is done field by field so that the following holds for any lexically correct String x:

 newXMLGregorianCalendar(x).toXMLFormat().equals(x)
 

Except for the noted lexical/canonical representation mismatches listed in XML Schema 1.0 errata, Section 3.2.7.2.

Specified by:

newXMLGregorianCalendar in class DatatypeFactory

Parameters:

lexicalRepresentation - Lexical representation of one the eight XML Schema date/time datatypes.

Returns:

XMLGregorianCalendar created from the lexicalRepresentation.

Throws:

IllegalArgumentException - If the lexicalRepresentation is not a valid XMLGregorianCalendar.

NullPointerException - If lexicalRepresentation is null.

newXMLGregorianCalendar

public XMLGregorianCalendar newXMLGregorianCalendar(GregorianCalendar cal)

Create an XMLGregorianCalendar from a GregorianCalendar.

Field by Field Conversion from GregorianCalendar to an XMLGregorianCalendar
java.util.GregorianCalendar field	javax.xml.datatype.XMLGregorianCalendar field
ERA == GregorianCalendar.BC ? -YEAR : YEAR	XMLGregorianCalendar.setYear(int year)
MONTH + 1	XMLGregorianCalendar.setMonth(int month)
DAY_OF_MONTH	XMLGregorianCalendar.setDay(int day)
HOUR_OF_DAY, MINUTE, SECOND, MILLISECOND	XMLGregorianCalendar.setTime(int hour, int minute, int second, BigDecimal fractional)
(ZONE_OFFSET + DST_OFFSET) / (60*1000) (in minutes)	XMLGregorianCalendar.setTimezone(int offset)*

*conversion loss of information. It is not possible to represent a java.util.GregorianCalendar daylight savings timezone id in the XML Schema 1.0 date/time datatype representation.

To compute the return value's TimeZone field,

• when this.getTimezone() != FIELD_UNDEFINED, create a java.util.TimeZone with a custom timezone id using the this.getTimezone().
• else use the GregorianCalendar default timezone value for the host is defined as specified by java.util.TimeZone.getDefault().

Specified by:

newXMLGregorianCalendar in class DatatypeFactory

Parameters:

cal - java.util.GregorianCalendar used to create XMLGregorianCalendar

Returns:

XMLGregorianCalendar created from java.util.GregorianCalendar

Throws:

NullPointerException - If cal is null.

newXMLGregorianCalendar

public XMLGregorianCalendar newXMLGregorianCalendar(int year,
                                                    int month,
                                                    int day,
                                                    int hour,
                                                    int minute,
                                                    int second,
                                                    int millisecond,
                                                    int timezone)

Constructor of value spaces that a java.util.GregorianCalendar instance would need to convert to an XMLGregorianCalendar instance.

XMLGregorianCalendar eon and fractionalSecond are set to null

A DatatypeConstants.FIELD_UNDEFINED value indicates that field isnot set.

Overrides:

newXMLGregorianCalendar in class DatatypeFactory

Parameters:

year - of XMLGregorianCalendar to be created.

month - of XMLGregorianCalendar to be created.

day - of XMLGregorianCalendar to be created.

hour - of XMLGregorianCalendar to be created.

minute - of XMLGregorianCalendar to be created.

second - of XMLGregorianCalendar to be created.

millisecond - of XMLGregorianCalendar to be created.

timezone - of XMLGregorianCalendar to be created.

Returns:

XMLGregorianCalendar created from specified values.

Throws:

IllegalArgumentException - If any individual parameter's value is outside the maximum value constraint for the field as determined by the Date/Time Data Mapping table in XMLGregorianCalendar or if the composite values constitute an invalid XMLGregorianCalendar instance as determined by XMLGregorianCalendar.isValid().

newXMLGregorianCalendar

public XMLGregorianCalendar newXMLGregorianCalendar(BigInteger year,
                                                    int month,
                                                    int day,
                                                    int hour,
                                                    int minute,
                                                    int second,
                                                    BigDecimal fractionalSecond,
                                                    int timezone)

Constructor allowing for complete value spaces allowed by W3C XML Schema 1.0 recommendation for xsd:dateTime and related builtin datatypes. Note that year parameter supports arbitrarily large numbers and fractionalSecond has infinite precision.

Specified by:

newXMLGregorianCalendar in class DatatypeFactory

Parameters:

year - of XMLGregorianCalendar to be created.

month - of XMLGregorianCalendar to be created.

day - of XMLGregorianCalendar to be created.

hour - of XMLGregorianCalendar to be created.

minute - of XMLGregorianCalendar to be created.

second - of XMLGregorianCalendar to be created.

fractionalSecond - of XMLGregorianCalendar to be created.

timezone - of XMLGregorianCalendar to be created.

Returns:

XMLGregorianCalendar created from specified values.

Throws:

IllegalArgumentException - If any individual parameter's value is outside the maximum value constraint for the field as determined by the Date/Time Data Mapping table in XMLGregorianCalendar or if the composite values constitute an invalid XMLGregorianCalendar instance as determined by XMLGregorianCalendar.isValid().

NullPointerException - If any parameters are null.