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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.FloatValue
A numeric (single precision floating point) value
| Field Summary | |
static FloatValue |
NaN
|
static FloatValue |
ONE
|
static FloatValue |
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 | |
FloatValue(java.lang.CharSequence val)
Constructor supplying a string |
|
FloatValue(float value)
Constructor supplying a float |
|
| Method Summary | |
NumericValue |
arithmetic(int operator,
NumericValue other,
XPathContext context)
Evaluate a binary arithmetic operator. |
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) |
boolean |
effectiveBooleanValue(XPathContext context)
Get the effective boolean value |
NumericValue |
floor()
Implement the XPath floor() function |
double |
getDoubleValue()
Get the numeric value as a double |
float |
getFloatValue()
Get the value |
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 as a String |
int |
hashCode()
Get the hashCode. |
boolean |
isNaN()
Test whether the value is the double/float value NaN |
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 |
roundHalfToEven(int scale)
Implement the XPath round-to-half-even() function |
double |
signum()
Determine whether the value is negative, zero, or positive |
| Methods inherited from class net.sf.saxon.value.NumericValue |
equals, isInteger, 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 FloatValue ZERO
public static final FloatValue ONE
public static final FloatValue NaN
| Constructor Detail |
public FloatValue(java.lang.CharSequence val)
throws DynamicError
public FloatValue(float value)
value - the value of the float| Method Detail |
public float getFloatValue()
public double getDoubleValue()
NumericValue
getDoubleValue in class NumericValuepublic int hashCode()
hashCode in class NumericValueNumericValue.hashCode()public boolean isNaN()
isNaN in class NumericValuepublic boolean effectiveBooleanValue(XPathContext context)
effectiveBooleanValue in interface ExpressioneffectiveBooleanValue in class AtomicValuecontext -
public AtomicValue convertPrimitive(BuiltInAtomicType requiredType,
boolean validate,
XPathContext context)
convertPrimitive in class AtomicValuerequiredType - an integer identifying the required atomic typecontext - validate - 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.
public java.lang.String getStringValue()
getStringValue in interface ItemgetStringValue in class AtomicValuepublic java.lang.CharSequence getStringValueCS()
getStringValueCS in interface ItemgetStringValueCS in class AtomicValuepublic ItemType getItemType(TypeHierarchy th)
getItemType in interface ExpressiongetItemType in class Valueth -
public NumericValue negate()
negate in class NumericValuepublic NumericValue floor()
floor in class NumericValuepublic NumericValue ceiling()
ceiling in class NumericValuepublic NumericValue round()
round in class NumericValuepublic NumericValue roundHalfToEven(int scale)
roundHalfToEven in class NumericValuescale - 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 NumericValuepublic boolean isWholeNumber()
isWholeNumber in class NumericValue
public NumericValue arithmetic(int operator,
NumericValue other,
XPathContext context)
throws XPathException
arithmetic in class NumericValueoperator - the binary arithmetic operation to be performed. Uses
the constants defined in the Tokenizer classother - the other operand
XPathException - if an arithmetic error occursTokenizerpublic int compareTo(java.lang.Object other)
NumericValue
compareTo in interface java.lang.ComparablecompareTo in class NumericValueother - The other numeric value
public int compareTo(long other)
compareTo in class NumericValueother - the value to be compared with
public java.lang.Object convertToJava(java.lang.Class target,
XPathContext context)
throws XPathException
convertToJava in class ValueXPathException
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