Package net.sf.saxon.value

Class BigIntegerValue

    • Field Detail

      • MAX_LONG

        public static final java.math.BigInteger MAX_LONG

      • MIN_LONG

        public static final java.math.BigInteger MIN_LONG

      • MAX_UNSIGNED_LONG

        public static final java.math.BigInteger MAX_UNSIGNED_LONG

    • Constructor Detail

      • BigIntegerValue

        public BigIntegerValue​(java.math.BigInteger value)
        Construct an xs:integer value from a Java BigInteger
        Parameters:
        value - the supplied BigInteger

      • BigIntegerValue

        public BigIntegerValue​(java.math.BigInteger value,
                       AtomicType typeLabel)
        Construct an xs:integer value from a Java BigInteger, supplying a type label. It is the caller's responsibility to ensure that the supplied value conforms with the rules for the specified type.
        Parameters:
        value - the value of the integer
        typeLabel - the type, which must represent a type derived from xs:integer

      • BigIntegerValue

        public BigIntegerValue​(long value)
        Construct an xs:integer value from a Java long. Note: normally, if the value fits in a long, then an Int64Value should be used. This constructor is largely for internal use, when operations are required that require two integers to use the same implementation class to be used.
        Parameters:
        value - the supplied Java long

    • Method Detail

      • copyAsSubType

        public AtomicValue copyAsSubType​(AtomicType typeLabel)
        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

      • convertToSubType

        public ValidationFailure convertToSubType​(BuiltInAtomicType type,
                                          boolean validate)
        This class allows subtypes of xs:integer to be held, as well as xs:integer values. This method sets the required type label. Note that this method modifies the value in situ.
        Specified by:
        convertToSubType in class IntegerValue
        Parameters:
        type - the subtype of integer required
        validate - true if validation is required, false if the caller warrants that the value is valid for the subtype
        Returns:
        null if the operation succeeds, or a ValidationException if the value is out of range

      • validateAgainstSubType

        public ValidationFailure validateAgainstSubType​(BuiltInAtomicType type)
        This class allows subtypes of xs:integer to be held, as well as xs:integer values. This method checks that the value is valid against the rules for a given subtype.
        Specified by:
        validateAgainstSubType in class IntegerValue
        Parameters:
        type - the subtype of integer required
        Returns:
        null if the operation succeeds, or a ValidationException if the value is out of range

      • hashCode

        public int hashCode()
        Get the hashCode. This must conform to the rules for other NumericValue hashcodes
        Specified by:
        hashCode in class NumericValue
        Returns:
        the hash code of the numeric value
        See Also:
        NumericValue.hashCode()

      • longValue

        public long longValue()
        Get the value as a long
        Specified by:
        longValue in class NumericValue
        Returns:
        the value of the xs:integer, as a Java long

      • asBigInteger

        public java.math.BigInteger asBigInteger()
        Get the value as a BigInteger
        Specified by:
        asBigInteger in class IntegerValue
        Returns:
        the value of the xs:integer as a Java BigInteger

      • isWithinLongRange

        public boolean isWithinLongRange()
        Test whether the value is within the range that can be held in a 64-bit signed integer
        Returns:
        true if the value is within range for a long

      • asDecimal

        public java.math.BigDecimal asDecimal()
        Convert the value to a BigDecimal
        Returns:
        the resulting BigDecimal

      • compareTo

        public int compareTo​(XPathComparable other)
        Compare the value to another numeric value
        Specified by:
        compareTo in interface java.lang.Comparable<XPathComparable>
        Overrides:
        compareTo in class NumericValue
        Parameters:
        other - the numeric value to be compared to this value
        Returns:
        -1 if this value is less than the other, 0 if they are equal, +1 if this value is greater

      • compareTo

        public int compareTo​(long other)
        Compare the value to a long
        Specified by:
        compareTo in class NumericValue
        Parameters:
        other - the value to be compared with
        Returns:
        -1 if this is less, 0 if this is equal, +1 if this is greater or if this is NaN

      • getDoubleValue

        public double getDoubleValue()
        Get the numeric value as a double
        Specified by:
        getDoubleValue in class NumericValue
        Returns:
        A double representing this numeric value; NaN if it cannot be converted

      • getDecimalValue

        public java.math.BigDecimal getDecimalValue()
        Get the numeric value converted to a decimal
        Specified by:
        getDecimalValue in class IntegerValue
        Returns:
        a decimal representing this numeric value;

      • getFloatValue

        public float getFloatValue()
        Get the numeric value converted to a float
        Specified by:
        getFloatValue in class NumericValue
        Returns:
        a float representing this numeric value; NaN if it cannot be converted

      • negate

        public NumericValue negate()
        Negate the value
        Specified by:
        negate in class NumericValue
        Returns:
        the result of inverting the sign of the value

      • floor

        public NumericValue floor()
        Implement the XPath floor() function
        Specified by:
        floor in class NumericValue
        Returns:
        the integer value, unchanged

      • ceiling

        public NumericValue ceiling()
        Implement the XPath ceiling() function
        Specified by:
        ceiling in class NumericValue
        Returns:
        the integer value, unchanged

      • round

        public NumericValue round​(int scale)
        Implement the XPath round() function
        Specified by:
        round in class NumericValue
        Parameters:
        scale - the number of decimal places required in the result (supply 0 for rounding to an integer)
        Returns:
        the integer value, unchanged

      • roundHalfToEven

        public NumericValue roundHalfToEven​(int scale)
        Implement the XPath round-to-half-even() function
        Specified by:
        roundHalfToEven in class NumericValue
        Parameters:
        scale - number of digits required after the decimal point; the value -2 (for example) means round to a multiple of 100
        Returns:
        if the scale is >=0, return this value unchanged. Otherwise round it to a multiple of 10**-scale

      • signum

        public int signum()
        Determine whether the value is negative, zero, or positive
        Specified by:
        signum in class NumericValue
        Returns:
        -1 if negative, 0 if zero, +1 if positive, NaN if NaN

      • abs

        public NumericValue abs()
        Get the absolute value as defined by the XPath abs() function
        Specified by:
        abs in class NumericValue
        Returns:
        the absolute value

      • isWholeNumber

        public boolean isWholeNumber()
        Determine whether the value is a whole number, that is, whether it compares equal to some integer
        Overrides:
        isWholeNumber in class IntegerValue
        Returns:
        always true for this implementation

      • asSubscript

        public int asSubscript()
        Test whether a number is a possible subscript into a sequence, that is, a whole number greater than zero and less than 2^31
        Specified by:
        asSubscript in class NumericValue
        Returns:
        the number as an int if it is a possible subscript, or -1 otherwise

      • minus

        public IntegerValue minus​(IntegerValue other)
        Subtract another integer
        Specified by:
        minus in class IntegerValue
        Parameters:
        other - the other integer
        Returns:
        the result of the subtraction

      • times

        public IntegerValue times​(IntegerValue other)
        Multiply by another integer
        Specified by:
        times in class IntegerValue
        Parameters:
        other - the other integer
        Returns:
        the result of the multiplication

      • reduce

        public IntegerValue reduce()
        Reduce a value to its simplest form.
        Returns:
        the simplified sequence