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java.lang.Object | +--net.sf.saxon.value.Value | +--net.sf.saxon.value.AtomicValue | +--net.sf.saxon.value.NumericValue | +--net.sf.saxon.value.BigIntegerValue
An integer value: note this is a subtype of decimal in XML Schema, not a primitive type. The class IntegerValue is used to represent xs:integer values that fit comfortably in a Java long; this class is used to represent xs:integer values outside this range, including the built-in subtype xs:unsignedLong
Field Summary | |
static java.math.BigInteger |
ZERO
|
Fields inherited from interface net.sf.saxon.expr.Expression |
EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD |
Constructor Summary | |
BigIntegerValue(java.math.BigInteger value)
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BigIntegerValue(long value)
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Method Summary | |
NumericValue |
arithmetic(int operator,
NumericValue other,
XPathContext context)
Evaluate a binary arithmetic operator. |
java.math.BigDecimal |
asDecimal()
|
NumericValue |
ceiling()
Implement the XPath ceiling() function |
int |
compareTo(java.lang.Object other)
Compare the value to another numeric value |
AtomicValue |
convert(int requiredType,
XPathContext context)
Convert to target data type |
java.lang.Object |
convertToJava(java.lang.Class target,
Configuration config,
XPathContext context)
Convert to Java object (for passing to external functions) |
boolean |
effectiveBooleanValue(XPathContext context)
Return the effective boolean value of this integer |
NumericValue |
floor()
Implement the XPath floor() function |
ItemType |
getItemType()
Determine the data type of the expression |
java.lang.String |
getStringValue()
Get the value as a String |
int |
hashCode()
Get the hashCode. |
boolean |
isWholeNumber()
Determine whether the value is a whole number, that is, whether it compares equal to some integer |
boolean |
isWithinLongRange()
|
long |
longValue()
Get the value as a long |
static NumericValue |
makeValue(java.math.BigInteger value)
Factory method: makes either an IntegerValue or a BigIntegerValue depending on the value supplied |
NumericValue |
negate()
Negate the value |
NumericValue |
round()
Implement the XPath round() function |
NumericValue |
roundToHalfEven(int scale)
Implement the XPath round-to-half-even() function |
Methods inherited from class net.sf.saxon.value.NumericValue |
equals, getDoubleValue, isInteger, isNaN, parseNumber, promote, toString |
Methods inherited from class net.sf.saxon.value.AtomicValue |
convert, display, evaluateAsString, evaluateItem, getCardinality, getComponent, getImplementationMethod, getPrimitiveValue, getTypedValue, iterate, process |
Methods inherited from class net.sf.saxon.value.Value |
analyze, asItem, asValue, collapseWhitespace, convertJavaObjectToXPath, getDependencies, getParentExpression, getSpecialProperties, inverse, iterateSubExpressions, normalizeWhitespace, promote, simplify, stringToNumber, trimWhitespace |
Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
public static final java.math.BigInteger ZERO
Constructor Detail |
public BigIntegerValue(java.math.BigInteger value)
public BigIntegerValue(long value)
Method Detail |
public static NumericValue makeValue(java.math.BigInteger value)
public int hashCode()
hashCode
in class NumericValue
NumericValue.hashCode()
public long longValue()
longValue
in class NumericValue
public boolean isWithinLongRange()
public java.math.BigDecimal asDecimal()
public boolean effectiveBooleanValue(XPathContext context)
effectiveBooleanValue
in interface Expression
effectiveBooleanValue
in class AtomicValue
context
- The dynamic evaluation context; ignored in this
implementation of the method
public int compareTo(java.lang.Object other)
compareTo
in interface java.lang.Comparable
compareTo
in class NumericValue
other
- the numeric value to be compared to this value
public AtomicValue convert(int requiredType, XPathContext context) throws XPathException
convert
in class AtomicValue
requiredType
- an integer identifying the required atomic typecontext
- the evaluation context. Used primarily for error reporting,
since nearly all type conversions are context-independent. The value may be
null if the context is not known.
XPathException
- if the conversion is not possiblepublic java.lang.String getStringValue()
getStringValue
in interface Item
getStringValue
in class AtomicValue
public NumericValue negate()
negate
in class NumericValue
public NumericValue floor()
floor
in class NumericValue
public NumericValue ceiling()
ceiling
in class NumericValue
public NumericValue round()
round
in class NumericValue
public NumericValue roundToHalfEven(int scale)
roundToHalfEven
in class NumericValue
scale
- number of digits required after the decimal point; the
value -2 (for example) means round to a multiple of 100
public boolean isWholeNumber()
isWholeNumber
in class NumericValue
public NumericValue arithmetic(int operator, NumericValue other, XPathContext context) throws XPathException
arithmetic
in class NumericValue
operator
- the operator to be applied, identified by a constant in
the Tokenizer classother
- the other operand of the arithmetic expression
XPathException
- if an arithmetic failure occurs, e.g. divide
by zeroTokenizer
public ItemType getItemType()
public java.lang.Object convertToJava(java.lang.Class target, Configuration config, XPathContext context) throws XPathException
convertToJava
in class AtomicValue
target
- The Java class to which conversion is requiredconfig
- The configuration (needed for access to schema information)
XPathException
- if conversion is not possible, or fails
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