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Java Source Code / Java Documentation » XML » XPath Saxon » net.sf.saxon.value 
Source Cross Reference  Class Diagram Java Document (Java Doc) 


java.lang.Object
   net.sf.saxon.value.Value
      net.sf.saxon.value.AtomicValue
         net.sf.saxon.value.NumericValue
            net.sf.saxon.value.DoubleValue

DoubleValue
final public class DoubleValue extends NumericValue (Code)
A numeric (double precision floating point) value


Field Summary
final public static  DoubleValueNaN
    
final public static  DoubleValueZERO
    
static  java.util.regex.PatternnonExponentialPattern
    

Constructor Summary
public  DoubleValue(CharSequence val)
    
public  DoubleValue(double value)
    

Method Summary
public  NumericValuearithmetic(int operator, NumericValue other, XPathContext context)
     Evaluate a binary arithmetic operator.
public  NumericValueceiling()
    
public  AtomicValueconvertPrimitive(BuiltInAtomicType requiredType, boolean validate, XPathContext context)
    
public  ObjectconvertToJava(Class target, XPathContext context)
    
static  StringdoubleToString(double value, String javaString)
     Internal method used for conversion of a double to a string
Parameters:
  value - the actual value
Parameters:
  javaString - the result of converting the double to a string using the Java conventions.This value is adjusted as necessary to cater for the differences between the Java and XPath rules.
public  booleaneffectiveBooleanValue(XPathContext context)
    
public  NumericValuefloor()
    
public  doublegetDoubleValue()
    
public  ItemTypegetItemType(TypeHierarchy th)
    
public  StringgetStringValue()
    
public  inthashCode()
     Get the hashCode.
public  booleanisNaN()
    
public  booleanisWholeNumber()
    
public  NumericValuenegate()
    
public  NumericValueround()
    
public  NumericValueroundToHalfEven(int scale)
    
public  booleanschemaEquals(Value obj)
     Compare two values for equality.
public  doublesignum()
    
static  Stringzeros(int n)
    

Field Detail
NaN
final public static DoubleValue NaN(Code)



ZERO
final public static DoubleValue ZERO(Code)



nonExponentialPattern
static java.util.regex.Pattern nonExponentialPattern(Code)




Constructor Detail
DoubleValue
public DoubleValue(CharSequence val) throws ValidationException(Code)
Constructor supplying a string
throws:
  ValidationException - if the string does not have the correct lexical form for a double.Note that the error will contain no error code or context information.



DoubleValue
public DoubleValue(double value)(Code)
Constructor supplying a double
Parameters:
  value - the value of the NumericValue




Method Detail
arithmetic
public NumericValue arithmetic(int operator, NumericValue other, XPathContext context) throws XPathException(Code)
Evaluate a binary arithmetic operator.



ceiling
public NumericValue ceiling()(Code)
Implement the XPath ceiling() function



convertPrimitive
public AtomicValue convertPrimitive(BuiltInAtomicType requiredType, boolean validate, XPathContext context)(Code)
Convert to target data type
Parameters:
  requiredType - an integer identifying the required atomic type
Parameters:
  context - an AtomicValue, a value of the required type



convertToJava
public Object convertToJava(Class target, XPathContext context) throws XPathException(Code)
Convert to Java object (for passing to external functions)



doubleToString
static String doubleToString(double value, String javaString)(Code)
Internal method used for conversion of a double to a string
Parameters:
  value - the actual value
Parameters:
  javaString - the result of converting the double to a string using the Java conventions.This value is adjusted as necessary to cater for the differences between the Java and XPath rules. the value converted to a string, according to the XPath casting rules.



effectiveBooleanValue
public boolean effectiveBooleanValue(XPathContext context)(Code)
Get the effective boolean value
Parameters:
  context - the effective boolean value (true unless the value is zero or NaN)



floor
public NumericValue floor()(Code)
Implement the XPath floor() function



getDoubleValue
public double getDoubleValue()(Code)
Return this numeric value as a double the value as a double



getItemType
public ItemType getItemType(TypeHierarchy th)(Code)
Determine the data type of the expression Type.DOUBLE
Parameters:
  th -



getStringValue
public String getStringValue()(Code)
Convert the double to a string according to the XPath 2.0 rules the string value



hashCode
public int hashCode()(Code)
Get the hashCode. This must conform to the rules for other NumericValue hashcodes
See Also:   NumericValue.hashCode



isNaN
public boolean isNaN()(Code)
Test whether the value is the double/float value NaN



isWholeNumber
public boolean isWholeNumber()(Code)
Determine whether the value is a whole number, that is, whether it compares equal to some integer



negate
public NumericValue negate()(Code)
Negate the value



round
public NumericValue round()(Code)
Implement the XPath round() function



roundToHalfEven
public NumericValue roundToHalfEven(int scale)(Code)
Implement the XPath round-to-half-even() function



schemaEquals
public boolean schemaEquals(Value obj)(Code)
Compare two values for equality. This supports identity constraints in XML Schema, which allow list-valued elements and attributes to participate in key and uniqueness constraints. This method returns false if any error occurs during the comparison, or if any of the items in either sequence is a node rather than an atomic value. The default implementation of schemaEquals() is the same as equals(), but subclasses can override this.



signum
public double signum()(Code)
Determine whether the value is negative, zero, or positive -1 if negative, 0 if zero (including negative zero), +1 if positive, NaN if NaN



zeros
static String zeros(int n)(Code)



Methods inherited from net.sf.saxon.value.NumericValue
abstract public NumericValue arithmetic(int operator, NumericValue other, XPathContext context) throws XPathException(Code)(Java Doc)
abstract public NumericValue ceiling()(Code)(Java Doc)
public int compareTo(Object other)(Code)(Java Doc)
final public boolean equals(Object other)(Code)(Java Doc)
abstract public NumericValue floor()(Code)(Java Doc)
public double getDoubleValue()(Code)(Java Doc)
abstract public int hashCode()(Code)(Java Doc)
public static boolean isInteger(AtomicValue value)(Code)(Java Doc)
public boolean isNaN()(Code)(Java Doc)
abstract public boolean isWholeNumber()(Code)(Java Doc)
public long longValue() throws XPathException(Code)(Java Doc)
abstract public NumericValue negate()(Code)(Java Doc)
public static NumericValue parseNumber(String in)(Code)(Java Doc)
public static ItemType promote(ItemType v1, ItemType v2, TypeHierarchy typeHierarchy)(Code)(Java Doc)
abstract public NumericValue round()(Code)(Java Doc)
abstract public NumericValue roundToHalfEven(int scale)(Code)(Java Doc)
abstract public double signum()(Code)(Java Doc)
public String toString()(Code)(Java Doc)

Methods inherited from net.sf.saxon.value.AtomicValue
public void checkPermittedContents(SchemaType parentType, StaticContext env, boolean whole) throws XPathException(Code)(Java Doc)
final public AtomicValue convert(int requiredType, XPathContext context) throws XPathException(Code)(Java Doc)
public AtomicValue convert(AtomicType targetType, XPathContext context, boolean validate)(Code)(Java Doc)
abstract public AtomicValue convertPrimitive(BuiltInAtomicType requiredType, boolean validate, XPathContext context)(Code)(Java Doc)
final public void display(int level, NamePool pool, PrintStream out)(Code)(Java Doc)
public boolean effectiveBooleanValue(XPathContext context) throws XPathException(Code)(Java Doc)
final public String evaluateAsString(XPathContext context)(Code)(Java Doc)
public Item evaluateItem(XPathContext context) throws XPathException(Code)(Java Doc)
final public int getCardinality()(Code)(Java Doc)
public AtomicValue getComponent(int component) throws XPathException(Code)(Java Doc)
public int getImplementationMethod()(Code)(Java Doc)
final public int getLength()(Code)(Java Doc)
public AtomicValue getPrimitiveValue()(Code)(Java Doc)
abstract public String getStringValue()(Code)(Java Doc)
public CharSequence getStringValueCS()(Code)(Java Doc)
final public SequenceIterator getTypedValue()(Code)(Java Doc)
public boolean hasBuiltInType()(Code)(Java Doc)
final public SequenceIterator iterate(XPathContext context)(Code)(Java Doc)
public void process(XPathContext context) throws XPathException(Code)(Java Doc)
public boolean schemaEquals(Value obj)(Code)(Java Doc)
public String toString()(Code)(Java Doc)

Fields inherited from net.sf.saxon.value.Value
final public static Class[] EMPTY_CLASS_ARRAY(Code)(Java Doc)

Methods inherited from net.sf.saxon.value.Value
public static Item asItem(ValueRepresentation value, XPathContext context) throws XPathException(Code)(Java Doc)
public static SequenceIterator asIterator(ValueRepresentation val, XPathContext context) throws XPathException(Code)(Java Doc)
public static Value asValue(ValueRepresentation val)(Code)(Java Doc)
public void checkPermittedContents(SchemaType parentType, StaticContext env, boolean whole) throws XPathException(Code)(Java Doc)
public static CharSequence collapseWhitespace(CharSequence in)(Code)(Java Doc)
public static Object convert(Item item) throws XPathException(Code)(Java Doc)
public static Value convertJavaObjectToXPath(Object object, SequenceType requiredType, Configuration config) throws XPathException(Code)(Java Doc)
public Object convertToJava(Class target, XPathContext context) throws XPathException(Code)(Java Doc)
public void display(int level, NamePool pool, PrintStream out)(Code)(Java Doc)
public boolean effectiveBooleanValue(XPathContext context) throws XPathException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
public String evaluateAsString(XPathContext context) throws XPathException(Code)(Java Doc)
public Item evaluateItem(XPathContext context) throws XPathException(Code)(Java Doc)
public int getCardinality()(Code)(Java Doc)
final public int getDependencies()(Code)(Java Doc)
public ItemType getItemType(TypeHierarchy th)(Code)(Java Doc)
public static SequenceIterator getIterator(ValueRepresentation val) throws XPathException(Code)(Java Doc)
public int getLength() throws XPathException(Code)(Java Doc)
final public Container getParentExpression()(Code)(Java Doc)
public int getSpecialProperties()(Code)(Java Doc)
public String getStringValue() throws XPathException(Code)(Java Doc)
public int hashCode()(Code)(Java Doc)
public Item itemAt(int n) throws XPathException(Code)(Java Doc)
final public Iterator iterateSubExpressions()(Code)(Java Doc)
public static QNameValue makeQNameValue(Object object, Configuration config)(Code)(Java Doc)
public static CharSequence normalizeWhitespace(CharSequence in)(Code)(Java Doc)
final public Expression optimize(Optimizer opt, StaticContext env, ItemType contextItemType)(Code)(Java Doc)
public void process(XPathContext context) throws XPathException(Code)(Java Doc)
final public Expression promote(PromotionOffer offer)(Code)(Java Doc)
public Value reduce() throws XPathException(Code)(Java Doc)
public boolean schemaEquals(Value obj)(Code)(Java Doc)
final public Expression simplify(StaticContext env)(Code)(Java Doc)
public static double stringToNumber(CharSequence s) throws NumberFormatException(Code)(Java Doc)
public String toString()(Code)(Java Doc)
public static CharSequence trimWhitespace(CharSequence in)(Code)(Java Doc)
final public Expression typeCheck(StaticContext env, ItemType contextItemType)(Code)(Java Doc)

Methods inherited from java.lang.Object
native protected Object clone() throws CloneNotSupportedException(Code)(Java Doc)
public boolean equals(Object obj)(Code)(Java Doc)
protected void finalize() throws Throwable(Code)(Java Doc)
final native public Class getClass()(Code)(Java Doc)
native public int hashCode()(Code)(Java Doc)
final native public void notify()(Code)(Java Doc)
final native public void notifyAll()(Code)(Java Doc)
public String toString()(Code)(Java Doc)
final native public void wait(long timeout) throws InterruptedException(Code)(Java Doc)
final public void wait(long timeout, int nanos) throws InterruptedException(Code)(Java Doc)
final public void wait() throws InterruptedException(Code)(Java Doc)

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