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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.DecimalValue
A decimal value
Field Summary |
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 |
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DecimalValue(java.lang.CharSequence in)
Constructor supplying a String |
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DecimalValue(double in)
Constructor supplying a double |
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DecimalValue(long in)
Constructor supplying a long integer |
Method Summary | |
NumericValue |
arithmetic(int operator,
NumericValue other,
XPathContext context)
Evaluate a binary arithmetic operator. |
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)
Get the effective boolean value of the value |
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 |
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 |
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, longValue, 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 |
Constructor Detail |
public DecimalValue(java.math.BigDecimal value)
value
- the value of the DecimalValuepublic DecimalValue(java.lang.CharSequence in) throws XPathException
in
- the value of the DecimalValuepublic DecimalValue(double in) throws XPathException
in
- the value of the DecimalValuepublic DecimalValue(long in)
in
- the value of the DecimalValueMethod Detail |
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 convert(int requiredType, XPathContext context) throws XPathException
convert
in class AtomicValue
requiredType
- type code of 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 conversion is not allowed for this
required type, or if the particular value cannot be convertedpublic java.lang.String getStringValue()
getStringValue
in interface Item
getStringValue
in class AtomicValue
public ItemType getItemType()
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
- the decimal position for rounding: e.g. 2 rounds to a
multiple of 0.01, while -2 rounds 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 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 java.lang.Object convertToJava(java.lang.Class target, Configuration config, XPathContext context) throws XPathException
convertToJava
in class AtomicValue
target
- The class required by the external functionconfig
- The configuration (needed for access to schema information)
XPathException
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