Package org.eclipse.rdf4j.sail.shacl.ast

Class StatementMatcher.StableRandomVariableProvider

java.lang.Object

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

Enclosing class:

StatementMatcher

public static class StatementMatcher.StableRandomVariableProvider
extends java.lang.Object

Field Summary

Fields

Modifier and Type	Field	Description
private static java.lang.String	BASE
private int	counter
private static int	max
private java.lang.String	prefix

Constructor Summary

Constructors

Constructor	Description
StableRandomVariableProvider()
StableRandomVariableProvider(java.lang.String prefix)

Method Summary

Modifier and Type	Method	Description
StatementMatcher.Variable<Value>	current()
StatementMatcher.Variable<Value>	next()
static java.lang.String	normalize(java.lang.String inputQuery, java.util.List<? extends StatementMatcher.Variable> protectedVars, java.util.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 java.lang.String	normalizeRange(java.lang.String inputQuery, int lowest, int highest, java.lang.String joinedProtectedVars, java.util.List<StatementMatcher> union)
private static void	replaceInStatementMatcher(java.util.List<StatementMatcher> statementMatchers, java.lang.String original, java.lang.String replacement)

Methods inherited from class java.lang.Object

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

Field Detail

BASE

private static final java.lang.String BASE

max

private static volatile int max

prefix

private final java.lang.String prefix

counter

private int counter

Constructor Detail

StableRandomVariableProvider

public StableRandomVariableProvider()

StableRandomVariableProvider

public StableRandomVariableProvider(java.lang.String prefix)

Method Detail

normalize

public static java.lang.String normalize(java.lang.String inputQuery,
                                         java.util.List<? extends StatementMatcher.Variable> protectedVars,
                                         java.util.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 java.lang.String normalizeRange(java.lang.String inputQuery,
                                               int lowest,
                                               int highest,
                                               java.lang.String joinedProtectedVars,
                                               java.util.List<StatementMatcher> union)

replaceInStatementMatcher

private static void replaceInStatementMatcher(java.util.List<StatementMatcher> statementMatchers,
                                              java.lang.String original,
                                              java.lang.String replacement)

next

public StatementMatcher.Variable<Value> next()

current

public StatementMatcher.Variable<Value> current()