Module java.xml
Package javax.xml.datatype

Class DatatypeFactory


  • public abstract class DatatypeFactory
extends Object
    Factory that creates new javax.xml.datatype Objects that map XML to/from Java Objects.

    A new instance of the DatatypeFactory is created through the newInstance() method that uses the following implementation resolution mechanisms to determine an implementation:

    1. If the system property specified by DATATYPEFACTORY_PROPERTY, "javax.xml.datatype.DatatypeFactory", exists, a class with the name of the property value is instantiated. Any Exception thrown during the instantiation process is wrapped as a DatatypeConfigurationException.

    2. Use the configuration file "jaxp.properties". The file is in standard Properties format and typically located in the conf directory of the Java installation. It contains the fully qualified name of the implementation class with the key being the system property defined above.

      The jaxp.properties file is read only once by the JAXP implementation and its values are then cached for future use. If the file does not exist when the first attempt is made to read from it, no further attempts are made to check for its existence. It is not possible to change the value of any property in jaxp.properties after it has been read for the first time.

    3. Use the service-provider loading facility, defined by the ServiceLoader class, to attempt to locate and load an implementation of the service using the default loading mechanism: the service-provider loading facility will use the current thread's context class loader to attempt to load the service. If the context class loader is null, the system class loader will be used.

      In case of service configuration error, a DatatypeConfigurationException will be thrown.

    4. The final mechanism is to attempt to instantiate the Class specified by DATATYPEFACTORY_IMPLEMENTATION_CLASS. Any Exception thrown during the instantiation process is wrapped as a DatatypeConfigurationException.

    Since:
    1.5

    • Field Detail

      • DATATYPEFACTORY_PROPERTY

        public static final String DATATYPEFACTORY_PROPERTY
        Default property name as defined in JSR 206: Java(TM) API for XML Processing (JAXP) 1.3.

        Default value is javax.xml.datatype.DatatypeFactory.

        See Also:
        Constant Field Values

      • DATATYPEFACTORY_IMPLEMENTATION_CLASS

        public static final String DATATYPEFACTORY_IMPLEMENTATION_CLASS
        Default implementation class name as defined in JSR 206: Java(TM) API for XML Processing (JAXP) 1.3.

        Implementers should specify the name of an appropriate class to be instantiated if no other implementation resolution mechanism succeeds.

        Users should not refer to this field; it is intended only to document a factory implementation detail.

    • Constructor Detail

      • DatatypeFactory

        protected DatatypeFactory​()
        Protected constructor to prevent instantiation outside of package.

        Use newInstance() to create a DatatypeFactory.

    • Method Detail

      • newInstance

        public static DatatypeFactory newInstance​(String factoryClassName,
                                          ClassLoader classLoader)
                                   throws DatatypeConfigurationException
        Obtain a new instance of a DatatypeFactory from class name. This function is useful when there are multiple providers in the classpath. It gives more control to the application as it can specify which provider should be loaded.

        Once an application has obtained a reference to a DatatypeFactory it can use the factory to configure and obtain datatype instances.

        Tip for Trouble-shooting

        Setting the jaxp.debug system property will cause this method to print a lot of debug messages to System.err about what it is doing and where it is looking at.

        If you have problems try: 

         java -Djaxp.debug=1 YourProgram ....
        Parameters:
        factoryClassName - fully qualified factory class name that provides implementation of javax.xml.datatype.DatatypeFactory.
        classLoader - ClassLoader used to load the factory class. If null current Thread's context classLoader is used to load the factory class.
        Returns:
        New instance of a DatatypeFactory
        Throws:
        DatatypeConfigurationException - if factoryClassName is null, or the factory class cannot be loaded, instantiated.
        Since:
        1.6
        See Also:
        newInstance()

      • newDuration

        public abstract 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 available 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.

        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 abstract 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 available using the get methods of the created Duration. The values conform to and are defined by:

        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.

        Parameters:
        durationInMilliSeconds - Duration in milliseconds to create.
        Returns:
        New Duration representing durationInMilliSeconds.

      • newDuration

        public abstract 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.

        A null value indicates that field is not set.

        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 the values are not a valid representation of a Duration: if all the fields (years, months, ...) are null or if any of the fields is negative.
        UnsupportedOperationException - If implementation cannot support requested values.

      • newDurationDayTime

        public Duration newDurationDayTime​(String lexicalRepresentation)
        Create a Duration of type xdt:dayTimeDuration by parsing its String representation, "PnDTnHnMnS", XQuery 1.0 and XPath 2.0 Data Model, xdt:dayTimeDuration.

        The datatype xdt:dayTimeDuration is a subtype of xs:duration whose lexical representation contains only day, hour, minute, and second components. This datatype resides in the namespace http://www.w3.org/2003/11/xpath-datatypes.

        All four values are set and available 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.

        Parameters:
        lexicalRepresentation - Lexical representation of a duration.
        Returns:
        New Duration created using the specified lexicalRepresentation.
        Throws:
        IllegalArgumentException - If lexicalRepresentation is not a valid representation of a Duration expressed only in terms of days and time.
        UnsupportedOperationException - If implementation cannot support requested values.
        NullPointerException - If lexicalRepresentation is null.

      • newDurationDayTime

        public Duration newDurationDayTime​(boolean isPositive,
                                   BigInteger day,
                                   BigInteger hour,
                                   BigInteger minute,
                                   BigInteger second)
        Create a Duration of type xdt:dayTimeDuration using the specified day, hour, minute and second as defined in XQuery 1.0 and XPath 2.0 Data Model, xdt:dayTimeDuration.

        The datatype xdt:dayTimeDuration is a subtype of xs:duration whose lexical representation contains only day, hour, minute, and second components. This datatype resides in the namespace http://www.w3.org/2003/11/xpath-datatypes.

        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.

        A null value indicates that field is not set.

        Parameters:
        isPositive - Set to false to create a negative duration. When the length of the duration is zero, this parameter will be ignored.
        day - Day of Duration.
        hour - Hour of Duration.
        minute - Minute of Duration.
        second - Second of Duration.
        Returns:
        New Duration created with the specified day, hour, minute and second.
        Throws:
        IllegalArgumentException - If the values are not a valid representation of a Duration: if all the fields (day, hour, ...) are null or if any of the fields is negative.
        UnsupportedOperationException - If implementation cannot support requested values.

      • newDurationDayTime

        public Duration newDurationDayTime​(boolean isPositive,
                                   int day,
                                   int hour,
                                   int minute,
                                   int second)
        Create a Duration of type xdt:dayTimeDuration using the specified day, hour, minute and second as defined in XQuery 1.0 and XPath 2.0 Data Model, xdt:dayTimeDuration.

        The datatype xdt:dayTimeDuration is a subtype of xs:duration whose lexical representation contains only day, hour, minute, and second components. This datatype resides in the namespace http://www.w3.org/2003/11/xpath-datatypes.

        A DatatypeConstants.FIELD_UNDEFINED value indicates that field is not set.

        Parameters:
        isPositive - Set to false to create a negative duration. When the length of the duration is zero, this parameter will be ignored.
        day - Day of Duration.
        hour - Hour of Duration.
        minute - Minute of Duration.
        second - Second of Duration.
        Returns:
        New Duration created with the specified day, hour, minute and second.
        Throws:
        IllegalArgumentException - If the values are not a valid representation of a Duration: if any of the fields (day, hour, ...) is negative.

      • newDurationYearMonth

        public Duration newDurationYearMonth​(String lexicalRepresentation)
        Create a Duration of type xdt:yearMonthDuration by parsing its String representation, "PnYnM", XQuery 1.0 and XPath 2.0 Data Model, xdt:yearMonthDuration.

        The datatype xdt:yearMonthDuration is a subtype of xs:duration whose lexical representation contains only year and month components. This datatype resides in the namespace XMLConstants.W3C_XPATH_DATATYPE_NS_URI.

        Both values are set and available 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.

        Parameters:
        lexicalRepresentation - Lexical representation of a duration.
        Returns:
        New Duration created using the specified lexicalRepresentation.
        Throws:
        IllegalArgumentException - If lexicalRepresentation is not a valid representation of a Duration expressed only in terms of years and months.
        UnsupportedOperationException - If implementation cannot support requested values.
        NullPointerException - If lexicalRepresentation is null.

      • newDurationYearMonth

        public Duration newDurationYearMonth​(boolean isPositive,
                                     BigInteger year,
                                     BigInteger month)
        Create a Duration of type xdt:yearMonthDuration using the specified year and month as defined in XQuery 1.0 and XPath 2.0 Data Model, xdt:yearMonthDuration.

        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.

        A null value indicates that field is not set.

        Parameters:
        isPositive - Set to false to create a negative duration. When the length of the duration is zero, this parameter will be ignored.
        year - Year of Duration.
        month - Month of Duration.
        Returns:
        New Duration created using the specified year and month.
        Throws:
        IllegalArgumentException - If the values are not a valid representation of a Duration: if all of the fields (year, month) are null or if any of the fields is negative.
        UnsupportedOperationException - If implementation cannot support requested values.

      • newDurationYearMonth

        public Duration newDurationYearMonth​(boolean isPositive,
                                     int year,
                                     int month)
        Create a Duration of type xdt:yearMonthDuration using the specified year and month as defined in XQuery 1.0 and XPath 2.0 Data Model, xdt:yearMonthDuration.

        A DatatypeConstants.FIELD_UNDEFINED value indicates that field is not set.

        Parameters:
        isPositive - Set to false to create a negative duration. When the length of the duration is zero, this parameter will be ignored.
        year - Year of Duration.
        month - Month of Duration.
        Returns:
        New Duration created using the specified year and month.
        Throws:
        IllegalArgumentException - If the values are not a valid representation of a Duration: if any of the fields (year, month) is negative.

      • newXMLGregorianCalendar

        public abstract 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.

        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 abstract 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.

        A null value indicates that field is not set.

        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().

      • 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 is not set.

        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().

      • newXMLGregorianCalendarTime

        public XMLGregorianCalendar newXMLGregorianCalendarTime​(int hours,
                                                        int minutes,
                                                        int seconds,
                                                        BigDecimal fractionalSecond,
                                                        int timezone)
        Create a Java instance of XML Schema builtin datatype time.

        A null value indicates that field is not set.

        A DatatypeConstants.FIELD_UNDEFINED value indicates that field is not set.

        Parameters:
        hours - number of hours
        minutes - number of minutes
        seconds - number of seconds
        fractionalSecond - value of null indicates that this optional field is not set.
        timezone - offset in minutes. DatatypeConstants.FIELD_UNDEFINED indicates optional field is not set.
        Returns:
        XMLGregorianCalendar created from parameter 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().
        See Also:
        DatatypeConstants.FIELD_UNDEFINED