com.hp.hpl.jena.sparql.expr.nodevalue
Class XSDFuncOp

java.lang.Object
  com.hp.hpl.jena.sparql.expr.nodevalue.XSDFuncOp

public class XSDFuncOp
extends Object

Implementation of XQuery/XPath functions and operators. http://www.w3.org/TR/xpath-functions/

Field Summary

static String	defaultTimezone
static boolean	strictDateTimeFO Under strict F&O, dateTimes and dates with no timezone have one magically applied.

Method Summary

static NodeValue	abs(NodeValue nv)
static NodeValue	add(NodeValue nv1, NodeValue nv2)
static boolean	booleanEffectiveValue(NodeValue nv)
static NodeValue	booleanEffectiveValueAsNodeValue(NodeValue nv)
static NodeValue	ceiling(NodeValue v)
static com.hp.hpl.jena.sparql.expr.nodevalue.NumericType	classifyNumeric(String fName, NodeValue nv)
static com.hp.hpl.jena.sparql.expr.nodevalue.NumericType	classifyNumeric(String fName, NodeValue nv1, NodeValue nv2)
static int	compareBoolean(NodeValue nv1, NodeValue nv2)
static int	compareDateTime(NodeValue nv1, NodeValue nv2)
static int	compareDuration(NodeValue nv1, NodeValue nv2)
static int	compareGDay(NodeValue nv1, NodeValue nv2)
static int	compareGMonth(NodeValue nv1, NodeValue nv2)
static int	compareGMonthDay(NodeValue nv1, NodeValue nv2)
static int	compareGYear(NodeValue nv1, NodeValue nv2)
static int	compareGYearMonth(NodeValue nv1, NodeValue nv2)
static int	compareNumeric(NodeValue nv1, NodeValue nv2)
static int	compareString(NodeValue nv1, NodeValue nv2)
static NodeValue	dateTimeCast(NodeValue nv, com.hp.hpl.jena.datatypes.RDFDatatype rdfDatatype) Cast a NodeValue to a date/time type (xsd dateTime, date, time, g*) according to F&O 17.1.5 Casting to date and time types Throws an exception on incorrect case.
static NodeValue	dateTimeCast(NodeValue nv, String typeURI) Cast a NodeValue to a date/time type (xsd dateTime, date, time, g*) according to F&O 17.1.5 Casting to date and time types Throws an exception on incorrect case.
static NodeValue	dateTimeCast(NodeValue nv, com.hp.hpl.jena.datatypes.xsd.XSDDatatype xsd) Cast a NodeValue to a date/time type (xsd dateTime, date, time, g*) according to F&O 17.1.5 Casting to date and time types Throws an exception on incorrect case.
static boolean	dateTimeCastCompatible(NodeValue nv, com.hp.hpl.jena.datatypes.xsd.XSDDatatype xsd)
static NodeValue	divide(NodeValue nv1, NodeValue nv2)
static NodeValue	dtGetDay(NodeValue nv)
static NodeValue	dtGetHours(NodeValue nv)
static NodeValue	dtGetMinutes(NodeValue nv)
static NodeValue	dtGetMonth(NodeValue nv)
static NodeValue	dtGetSeconds(NodeValue nv)
static NodeValue	dtGetTimezone(NodeValue nv)
static NodeValue	dtGetYear(NodeValue nv)
static NodeValue	floor(NodeValue v)
static NodeValue	javaSubstring(NodeValue v1, NodeValue v2)
static NodeValue	javaSubstring(NodeValue nvString, NodeValue nvStart, NodeValue nvFinish)
static NodeValue	max(NodeValue nv1, NodeValue nv2)
static NodeValue	min(NodeValue nv1, NodeValue nv2)
static NodeValue	multiply(NodeValue nv1, NodeValue nv2)
static NodeValue	not(NodeValue nv)
static NodeValue	round(NodeValue v)
static NodeValue	sqrt(NodeValue v)
static NodeValue	strConcat(List<NodeValue> args)
static NodeValue	strContains(NodeValue string, NodeValue match)
static NodeValue	strEndsWith(NodeValue string, NodeValue match)
static NodeValue	stringLength(NodeValue str) String operations
static NodeValue	strLowerCase(NodeValue string)
static NodeValue	strStartsWith(NodeValue string, NodeValue match)
static NodeValue	strUpperCase(NodeValue string)
static NodeValue	substring(NodeValue v1, NodeValue v2)
static NodeValue	substring(NodeValue nvString, NodeValue nvStart, NodeValue nvLength)
static NodeValue	subtract(NodeValue nv1, NodeValue nv2)
static NodeValue	unaryMinus(NodeValue nv)
static NodeValue	unaryPlus(NodeValue nv)

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Field Detail

strictDateTimeFO

public static boolean strictDateTimeFO

Under strict F&O, dateTimes and dates with no timezone have one magically applied. This default tiemzoine is implementation dependent and can lead to different answers to queries depending on the timezone. Normally, ARQ uses XMLSchema dateTime comparions, which an yield "indeterminate", which in turn is an evaluation error. F&O insists on true/false so can lead to false positves and negatives.

defaultTimezone

public static final String defaultTimezone

See Also:

Constant Field Values

Method Detail

add

public static NodeValue add(NodeValue nv1,
                            NodeValue nv2)

subtract

public static NodeValue subtract(NodeValue nv1,
                                 NodeValue nv2)

multiply

public static NodeValue multiply(NodeValue nv1,
                                 NodeValue nv2)

divide

public static NodeValue divide(NodeValue nv1,
                               NodeValue nv2)

max

public static NodeValue max(NodeValue nv1,
                            NodeValue nv2)

min

public static NodeValue min(NodeValue nv1,
                            NodeValue nv2)

not

public static NodeValue not(NodeValue nv)

booleanEffectiveValueAsNodeValue

public static NodeValue booleanEffectiveValueAsNodeValue(NodeValue nv)

booleanEffectiveValue

public static boolean booleanEffectiveValue(NodeValue nv)

unaryMinus

public static NodeValue unaryMinus(NodeValue nv)

unaryPlus

public static NodeValue unaryPlus(NodeValue nv)

abs

public static NodeValue abs(NodeValue nv)

ceiling

public static NodeValue ceiling(NodeValue v)

floor

public static NodeValue floor(NodeValue v)

round

public static NodeValue round(NodeValue v)

sqrt

public static NodeValue sqrt(NodeValue v)

stringLength

public static NodeValue stringLength(NodeValue str)

String operations

javaSubstring

public static NodeValue javaSubstring(NodeValue v1,
                                      NodeValue v2)

javaSubstring

public static NodeValue javaSubstring(NodeValue nvString,
                                      NodeValue nvStart,
                                      NodeValue nvFinish)

substring

public static NodeValue substring(NodeValue v1,
                                  NodeValue v2)

substring

public static NodeValue substring(NodeValue nvString,
                                  NodeValue nvStart,
                                  NodeValue nvLength)

strContains

public static NodeValue strContains(NodeValue string,
                                    NodeValue match)

strStartsWith

public static NodeValue strStartsWith(NodeValue string,
                                      NodeValue match)

strEndsWith

public static NodeValue strEndsWith(NodeValue string,
                                    NodeValue match)

strLowerCase

public static NodeValue strLowerCase(NodeValue string)

strUpperCase

public static NodeValue strUpperCase(NodeValue string)

strConcat

public static NodeValue strConcat(List<NodeValue> args)

classifyNumeric

public static com.hp.hpl.jena.sparql.expr.nodevalue.NumericType classifyNumeric(String fName,
                                                                                NodeValue nv1,
                                                                                NodeValue nv2)

classifyNumeric

public static com.hp.hpl.jena.sparql.expr.nodevalue.NumericType classifyNumeric(String fName,
                                                                                NodeValue nv)

compareNumeric

public static int compareNumeric(NodeValue nv1,
                                 NodeValue nv2)

compareString

public static int compareString(NodeValue nv1,
                                NodeValue nv2)

compareDateTime

public static int compareDateTime(NodeValue nv1,
                                  NodeValue nv2)

compareDuration

public static int compareDuration(NodeValue nv1,
                                  NodeValue nv2)

compareGYear

public static int compareGYear(NodeValue nv1,
                               NodeValue nv2)

compareGYearMonth

public static int compareGYearMonth(NodeValue nv1,
                                    NodeValue nv2)

compareGMonth

public static int compareGMonth(NodeValue nv1,
                                NodeValue nv2)

compareGMonthDay

public static int compareGMonthDay(NodeValue nv1,
                                   NodeValue nv2)

compareGDay

public static int compareGDay(NodeValue nv1,
                              NodeValue nv2)

compareBoolean

public static int compareBoolean(NodeValue nv1,
                                 NodeValue nv2)

dateTimeCastCompatible

public static boolean dateTimeCastCompatible(NodeValue nv,
                                             com.hp.hpl.jena.datatypes.xsd.XSDDatatype xsd)

dateTimeCast

public static NodeValue dateTimeCast(NodeValue nv,
                                     String typeURI)

Cast a NodeValue to a date/time type (xsd dateTime, date, time, g*) according to F&O 17.1.5 Casting to date and time types Throws an exception on incorrect case.

Throws:

ExprEvalTypeException

dateTimeCast

public static NodeValue dateTimeCast(NodeValue nv,
                                     com.hp.hpl.jena.datatypes.RDFDatatype rdfDatatype)

Cast a NodeValue to a date/time type (xsd dateTime, date, time, g*) according to F&O 17.1.5 Casting to date and time types Throws an exception on incorrect case.

Throws:

ExprEvalTypeException

dateTimeCast

public static NodeValue dateTimeCast(NodeValue nv,
                                     com.hp.hpl.jena.datatypes.xsd.XSDDatatype xsd)

Cast a NodeValue to a date/time type (xsd dateTime, date, time, g*) according to F&O 17.1.5 Casting to date and time types Throws an exception on incorrect case.

Throws:

ExprEvalTypeException

dtGetYear

public static NodeValue dtGetYear(NodeValue nv)

dtGetMonth

public static NodeValue dtGetMonth(NodeValue nv)

dtGetDay

public static NodeValue dtGetDay(NodeValue nv)

dtGetHours

public static NodeValue dtGetHours(NodeValue nv)

dtGetMinutes

public static NodeValue dtGetMinutes(NodeValue nv)

dtGetSeconds

public static NodeValue dtGetSeconds(NodeValue nv)

dtGetTimezone

public static NodeValue dtGetTimezone(NodeValue nv)