com.hp.hpl.jena.sparql
Class SystemARQ

java.lang.Object
  com.hp.hpl.jena.sparql.SystemARQ

public class SystemARQ
extends Object

Field Summary

static boolean	EnableRomanNumerals Whether support for roman numerals (datatype http://rome.example.org/Numeral).
static boolean	SameValueAsString Control whether simple literals, string literals without datatype orlanguage tag, are created sameValueAs xsd:string.
static boolean	StrictDateTimeFO Under strict F&O, dateTimes and dates with no timezone have one magically applied.
static boolean	UsePlainGraph Use a plain graph (sameValueAs is term equality)
static boolean	UseSAX Whether to use StAX or SAX XML parsing for result sets (StAX preferred).
static boolean	ValueExtensions Control whether additon datatypes, over and above strict, minimal SPARQL compliance, are handled.

Constructor Summary

SystemARQ()

Method Summary

static Iterator<SystemInfo>	registeredSubsystems()
static void	registerSubSystem(SystemInfo systemInfo)
static void	sync(Dataset dataset) Sync a Dataset, if underlying storage provides sync.
static void	sync(DatasetGraph dataset) Sync carefully for compound objects
static void	sync(Graph graph) Sync if provided.
static void	sync(Model model) Sync a Model if it provides the underlying graph provides sync .
static void	syncObject(Object object) Sync an object if synchronizable (model, graph, dataset).

Methods inherited from class java.lang.Object

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

Field Detail

ValueExtensions

public static boolean ValueExtensions

Control whether additon datatypes, over and above strict, minimal SPARQL compliance, are handled. Examples incldue xsd;date and simple literal/xsd:string.

SameValueAsString

public static boolean SameValueAsString

Control whether simple literals, string literals without datatype orlanguage tag, are created sameValueAs xsd:string. Normally true. Some testing for pre-RDF-1.1 assumes otherwise.

StrictDateTimeFO

public static boolean StrictDateTimeFO

Under strict F&O, dateTimes and dates with no timezone have one magically applied. This default timezone 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 and so can lead to false positves and negatives.

EnableRomanNumerals

public static boolean EnableRomanNumerals

Whether support for roman numerals (datatype http://rome.example.org/Numeral). Mainly a test of datatype extension.

UsePlainGraph

public static boolean UsePlainGraph

Use a plain graph (sameValueAs is term equality)

UseSAX

public static boolean UseSAX

Whether to use StAX or SAX XML parsing for result sets (StAX preferred).

Constructor Detail

SystemARQ

public SystemARQ()

Method Detail

sync

public static void sync(Model model)

Sync a Model if it provides the underlying graph provides sync . Do nothing otherwise.

sync

public static void sync(Graph graph)

Sync if provided. Do nothing if not.

sync

public static void sync(Dataset dataset)

Sync a Dataset, if underlying storage provides sync.

sync

public static void sync(DatasetGraph dataset)

Sync carefully for compound objects

syncObject

public static void syncObject(Object object)

Sync an object if synchronizable (model, graph, dataset). If force is true, synchronize as much as possible (e.g. file metadata) else make a reasonable attenpt at synchronization but does not gauarantee disk state. Do nothing otherwise.

registerSubSystem

public static void registerSubSystem(SystemInfo systemInfo)

registeredSubsystems

public static Iterator<SystemInfo> registeredSubsystems()