com.epimorphics.lda.specs

Class PropertyExpiryTimes

java.lang.Object

com.epimorphics.lda.specs.PropertyExpiryTimes

public class PropertyExpiryTimes
extends Object

PropertyExpiryTimes is a configurable map from resources (represented by Nodes) to their cache expiry time (interval length) in seconds. A PropertyExpiryTimes is configured from a model containing EXTRAS.cacheExpiryTime statements. A PropertyExpiryTimes also records the minimum of all specified cache expiry times it has been given.

Field Summary

Fields

Modifier and Type	Field and Description
protected long	minTimeSeconds
protected Map<com.hp.hpl.jena.graph.Node,Long>	secondsForNode

Method Summary

Methods

Modifier and Type	Method and Description
static PropertyExpiryTimes	assemble(com.hp.hpl.jena.rdf.model.Model model) assemble builds a PropertyExpiryTimes from a given model by looking at all the statements (S EXTRAS.cacheExpiryTime O) where S is a property, that is, has rdf:type rdf:Property, owl:DatatypeProperty, or owl:ObjectProperty.
static PropertyExpiryTimes	buildForTests(Object... args) buildForTests constructs a PropertyExpiryTimes from an array of alternating Node and (seconds) Long values; the node in element N of the array is given the seconds value in element N+1.
boolean	equals(Object other)
static long	getSecondsValue(com.hp.hpl.jena.rdf.model.Resource x, com.hp.hpl.jena.rdf.model.Property p, long ifAbsent)
long	minTimeMillis()
protected void	put(com.hp.hpl.jena.graph.Node n, long seconds)
long	timeInMillisFor(com.hp.hpl.jena.rdf.model.Resource r)
String	toString()

Methods inherited from class java.lang.Object

clone, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Field Detail

secondsForNode

protected final Map<com.hp.hpl.jena.graph.Node,Long> secondsForNode

minTimeSeconds

protected long minTimeSeconds

Method Detail

buildForTests

public static PropertyExpiryTimes buildForTests(Object... args)

buildForTests constructs a PropertyExpiryTimes from an array of alternating Node and (seconds) Long values; the node in element N of the array is given the seconds value in element N+1.

assemble

public static PropertyExpiryTimes assemble(com.hp.hpl.jena.rdf.model.Model model)

assemble builds a PropertyExpiryTimes from a given model by looking at all the statements (S EXTRAS.cacheExpiryTime O) where S is a property, that is, has rdf:type rdf:Property, owl:DatatypeProperty, or owl:ObjectProperty. S is added to the PropertyExpiryTimes with a millisecond value derived from O, which must either be an integer number of seconds or a string d+S where d+ is an integer representation and S specifies the time unit for this time: s(econds), m(inutes), h(ours), d(ays), w(eeks).

put

protected void put(com.hp.hpl.jena.graph.Node n,
       long seconds)

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object other)

Overrides:

equals in class Object

getSecondsValue

public static long getSecondsValue(com.hp.hpl.jena.rdf.model.Resource x,
                   com.hp.hpl.jena.rdf.model.Property p,
                   long ifAbsent)

timeInMillisFor

public long timeInMillisFor(com.hp.hpl.jena.rdf.model.Resource r)

minTimeMillis

public long minTimeMillis()