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java.lang.Objectnet.sf.saxon.value.Value
net.sf.saxon.value.AtomicValue
net.sf.saxon.value.NumericValue
net.sf.saxon.value.IntegerValue
An integer value: note this is a subtype of decimal in XML Schema, not a primitive type. This class also supports the built-in subtypes of xs:integer. Actually supports a value in the range permitted by a Java "long"
Field Summary | |
static IntegerValue |
MINUS_ONE
IntegerValue representing the value -1 |
static IntegerValue |
PLUS_ONE
IntegerValue representing the value +1 |
(package private) static long[] |
ranges
Static data identifying the min and max values for each built-in subtype of xs:integer |
static IntegerValue |
ZERO
IntegerValue representing the value zero |
Constructor Summary | |
IntegerValue(long value)
Constructor supplying a double |
|
IntegerValue(long val,
ItemType type)
Constructor for a subtype, supplying an integer |
Method Summary | |
NumericValue |
arithmetic(int operator,
NumericValue other)
Evaluate a binary arithmetic operator. |
long |
asLong()
Return the numeric value as a Java long. |
NumericValue |
ceiling()
Implement the XPath ceiling() function |
int |
compareTo(java.lang.Object other)
Compare the value to another numeric value |
int |
conversionPreference(java.lang.Class required)
Get conversion preference for this value to a Java class. |
AtomicValue |
convert(int requiredType)
Convert to target data type |
java.lang.Object |
convertToJava(java.lang.Class target)
Convert to Java object (for passing to external functions) |
void |
display(int level,
NamePool pool)
Diagnostic print of expression structure |
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 |
long |
getValue()
Get the value |
int |
hashCode()
Get the hashCode. |
boolean |
isWholeNumber()
Determine whether the value is a whole number, that is, whether it compares equal to some integer |
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 |
asDouble, equals, isNaN, promote, toString |
Methods inherited from class net.sf.saxon.value.AtomicValue |
convert, convert, evaluateAsString, evaluateItem, getCardinality, getComponent, getPrimitiveValue, getTypedValue, iterate |
Methods inherited from class net.sf.saxon.value.Value |
analyze, asItem, asValue, collapseWhitespace, getDependencies, getSpecialProperties, getSubExpressions, inverse, normalizeWhitespace, promote, simplify, stringToInteger, stringToNumber, trimWhitespace |
Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
public static final IntegerValue MINUS_ONE
public static final IntegerValue ZERO
public static final IntegerValue PLUS_ONE
static long[] ranges
Constructor Detail |
public IntegerValue(long value)
value
- the value of the IntegerValuepublic IntegerValue(long val, ItemType type) throws XPathException
val
- The supplied value, as an integertype
- the required item type, a subtype of xs:integer
XPathException
- if the supplied value is out of range for the
target typeMethod Detail |
public int hashCode()
hashCode
in class NumericValue
NumericValue.hashCode()
public long getValue()
public long asLong()
NumericValue
asLong
in class NumericValue
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) throws XPathException
convert
in class AtomicValue
requiredType
- an integer identifying the required atomic type
XPathException
- if the conversion is not possiblepublic java.lang.String getStringValue()
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) 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 int conversionPreference(java.lang.Class required)
conversionPreference
in class AtomicValue
required
- the Java class to which conversion is required
public java.lang.Object convertToJava(java.lang.Class target) throws XPathException
convertToJava
in class AtomicValue
target
- The Java class to which conversion is required
XPathException
- if conversion is not possible, or failspublic void display(int level, NamePool pool)
level
- indentation level of the output
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