Class StatementMatcher.StableRandomVariableProvider

java.lang.Object

org.eclipse.rdf4j.sail.shacl.ast.StatementMatcher.StableRandomVariableProvider

Enclosing class:

StatementMatcher

public static class StatementMatcher.StableRandomVariableProvider
extends Object

Field Summary

Fields

Modifier and Type	Field	Description
private static final String	BASE
private int	counter
private static int	max
private final String	prefix

Constructor Summary

Constructors

Constructor	Description
StableRandomVariableProvider()
StableRandomVariableProvider(String prefix)

Method Summary

Modifier and Type	Method	Description
StatementMatcher.Variable<Value>	current()
StatementMatcher.Variable<Value>	next()
static String	normalize(String inputQuery, List<? extends StatementMatcher.Variable> protectedVars, List<StatementMatcher> union)	Normalize the use of random variables in a SPARQL query so that the numbering of queries starts at 0 in increments of one.
private static String	normalizeRange(String inputQuery, int lowest, int highest, String joinedProtectedVars, List<StatementMatcher> union)
private static void	replaceInStatementMatcher(List<StatementMatcher> statementMatchers, String original, String replacement)

Methods inherited from class Object

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

Field Details

BASE

private static final String BASE

max

private static volatile int max

prefix

private final String prefix

counter

private int counter

Constructor Details

StableRandomVariableProvider

public StableRandomVariableProvider()

StableRandomVariableProvider

public StableRandomVariableProvider(String prefix)

Method Details

normalize

public static String normalize(String inputQuery,
 List<? extends StatementMatcher.Variable> protectedVars,
 List<StatementMatcher> union)

Normalize the use of random variables in a SPARQL query so that the numbering of queries starts at 0 in increments of one.

Parameters:

inputQuery - the query string that should be normalized

union -

Returns:

a normalized query string

normalizeRange

private static String normalizeRange(String inputQuery,
 int lowest,
 int highest,
 String joinedProtectedVars,
 List<StatementMatcher> union)

replaceInStatementMatcher

private static void replaceInStatementMatcher(List<StatementMatcher> statementMatchers,
 String original,
 String replacement)

next

public StatementMatcher.Variable<Value> next()

current

public StatementMatcher.Variable<Value> current()