XSDDuration (Apache Jena ARQ)

java.lang.Object

org.apache.jena.sparql.expr.nodevalue.XSDDuration

public class XSDDuration extends Object

Functions relating to XSD durations (F&O 3.1), using javax.xml.datatype.Duration

Constructor Summary

Constructors

Constructor

Description

XSDDuration()
Method Summary

Modifier and Type

Method

Description

static int

durationCompare(Duration duration1, Duration duration2)

Compare durations.

static boolean

durationIsZero(Duration duration)

Test whether a duration is zero

Methods inherited from class java.lang.Object
equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details
- XSDDuration
  
  public XSDDuration()
Method Details
- durationCompare
  
  public static int durationCompare(Duration duration1, Duration duration2)
  
  Compare durations.
  There are two value spaces: year-month and day-time.
  Value spaces are determined dynamically, not from the datatype.
  Comparison across these two spaces is not possible except in the case of zero duration. This function returns Expr.CMP_UNEQUAL for durations in different value spaces which are not both zero.
  If the comparison using the JDK throws "UnsupportedOperationException", this function returns Expr.CMP_INDETERMINATE. (this occurs if field values are too large - larger than Integer.MAX_VALUE.
  Comparison operators on durations
  "With the exception of the zero-length duration, no instance of xs:dayTimeDuration can ever be equal to an instance of xs:yearMonthDuration."
- durationIsZero
  
  public static boolean durationIsZero(Duration duration)
  
  Test whether a duration is zero