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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.DecimalValue
A decimal value
Field Summary | |
static java.math.BigDecimal |
BIG_DECIMAL_ONE
|
static java.math.BigDecimal |
BIG_DECIMAL_ONE_MILLION
|
static java.math.BigInteger |
BIG_INTEGER_TEN
|
static DecimalValue |
ONE
|
static DecimalValue |
ZERO
|
Fields inherited from class net.sf.saxon.value.Value |
EMPTY_CLASS_ARRAY |
Fields inherited from interface net.sf.saxon.om.ValueRepresentation |
EMPTY_VALUE_ARRAY |
Fields inherited from interface net.sf.saxon.expr.Expression |
EVALUATE_METHOD, ITERATE_METHOD, PROCESS_METHOD |
Constructor Summary | |
DecimalValue(java.math.BigDecimal value)
Constructor supplying a BigDecimal |
|
DecimalValue(double in)
Constructor supplying a double |
|
DecimalValue(long in)
Constructor supplying a long integer |
Method Summary | |
NumericValue |
arithmetic(int operator,
NumericValue other,
XPathContext context)
Evaluate a binary arithmetic operator. |
static boolean |
castableAsDecimal(java.lang.CharSequence in)
Test whether a string is castable to a decimal value |
NumericValue |
ceiling()
Implement the XPath ceiling() function |
int |
compareTo(long other)
Compare the value to a long |
int |
compareTo(java.lang.Object other)
Compare the value to another numeric value |
AtomicValue |
convertPrimitive(BuiltInAtomicType requiredType,
boolean validate,
XPathContext context)
Convert to target data type |
java.lang.Object |
convertToJava(java.lang.Class target,
XPathContext context)
Convert to Java object (for passing to external functions) |
static java.lang.CharSequence |
decimalToString(java.math.BigDecimal value)
|
boolean |
effectiveBooleanValue(XPathContext context)
Get the effective boolean value of the value |
NumericValue |
floor()
Implement the XPath floor() function |
ItemType |
getItemType(TypeHierarchy th)
Determine the data type of the expression |
java.lang.String |
getStringValue()
Get the value as a String |
java.lang.CharSequence |
getStringValueCS()
Get the value of the item as a CharSequence. |
java.math.BigDecimal |
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 |
static AtomicValue |
makeDecimalValue(java.lang.CharSequence in,
boolean validate)
Factory method to construct a DecimalValue from a string |
NumericValue |
negate()
Negate the value |
NumericValue |
round()
Implement the XPath round() function |
NumericValue |
roundHalfToEven(int scale)
Implement the XPath round-half-to-even() function |
double |
signum()
Determine whether the value is negative, zero, or positive |
Methods inherited from class net.sf.saxon.value.NumericValue |
equals, getDoubleValue, isInteger, isNaN, longValue, parseNumber, promote, toString |
Methods inherited from class net.sf.saxon.value.AtomicValue |
checkPermittedContents, convert, convert, display, evaluateAsString, evaluateItem, getCardinality, getComponent, getImplementationMethod, getLength, getPrimitiveValue, getTypedValue, hasBuiltInType, iterate, process |
Methods inherited from class net.sf.saxon.value.Value |
asItem, asIterator, asValue, convert, convertJavaObjectToXPath, getDependencies, getIterator, getParentExpression, getSpecialProperties, itemAt, iterateSubExpressions, makeQNameValue, optimize, promote, reduce, simplify, stringToNumber, typeCheck |
Methods inherited from class java.lang.Object |
clone, finalize, getClass, notify, notifyAll, wait, wait, wait |
Field Detail |
public static final java.math.BigDecimal BIG_DECIMAL_ONE
public static final java.math.BigInteger BIG_INTEGER_TEN
public static final java.math.BigDecimal BIG_DECIMAL_ONE_MILLION
public static final DecimalValue ZERO
public static final DecimalValue ONE
Constructor Detail |
public DecimalValue(java.math.BigDecimal value)
value
- the value of the DecimalValuepublic DecimalValue(double in) throws ValidationException
in
- the value of the DecimalValuepublic DecimalValue(long in)
in
- the value of the DecimalValueMethod Detail |
public static AtomicValue makeDecimalValue(java.lang.CharSequence in, boolean validate)
in
- the value of the DecimalValuevalidate
- true if validation is required; false if the caller knows that the value is valid
public static boolean castableAsDecimal(java.lang.CharSequence in)
public java.math.BigDecimal getValue()
public int hashCode()
hashCode
in class NumericValue
NumericValue.hashCode()
public boolean effectiveBooleanValue(XPathContext context)
AtomicValue
effectiveBooleanValue
in interface Expression
effectiveBooleanValue
in class AtomicValue
context
- the evaluation context (not used in this implementation)
public AtomicValue convertPrimitive(BuiltInAtomicType requiredType, boolean validate, XPathContext context)
convertPrimitive
in class AtomicValue
requiredType
- type code of the required atomic typevalidate
- true if validation is required. If set to false, the caller guarantees that
the value is valid for the target data type, and that further validation is therefore not required.
Note that a validation failure may be reported even if validation was not requested.context
- The conversion context to be used. This is required at present only when converting to
a date or time: it provides the implicit timezone.
public java.lang.CharSequence getStringValueCS()
getStringValueCS
in interface Item
getStringValueCS
in class AtomicValue
public java.lang.String getStringValue()
getStringValue
in interface Item
getStringValue
in class AtomicValue
public static java.lang.CharSequence decimalToString(java.math.BigDecimal value)
public ItemType getItemType(TypeHierarchy th)
getItemType
in interface Expression
getItemType
in class Value
th
-
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 roundHalfToEven(int scale)
roundHalfToEven
in class NumericValue
scale
- the decimal position for rounding: e.g. 2 rounds to a
multiple of 0.01, while -2 rounds to a multiple of 100
public double signum()
signum
in class NumericValue
public boolean isWholeNumber()
isWholeNumber
in class NumericValue
public NumericValue arithmetic(int operator, NumericValue other, XPathContext context) throws XPathException
arithmetic
in class NumericValue
operator
- the binary arithmetic operation to be performed. Uses
the constants defined in the Tokenizer classother
- the other operand
XPathException
- if an arithmetic error occursTokenizer
public int compareTo(java.lang.Object other)
compareTo
in interface java.lang.Comparable
compareTo
in class NumericValue
other
- The other numeric value
public int compareTo(long other)
compareTo
in class NumericValue
other
- the value to be compared with
public java.lang.Object convertToJava(java.lang.Class target, XPathContext context) throws XPathException
convertToJava
in class Value
XPathException
|
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