com.hp.hpl.jena.sparql.engine
Class VarRename

java.lang.Object
  com.hp.hpl.jena.sparql.engine.VarRename

public class VarRename
extends Object

Constructor Summary

VarRename()

Method Summary

static ExprList	rename(ExprList exprList, Set<Var> constants) Rename all variables in an expression, EXCEPT for those named as constant
static Expr	rename(Expr expr, Set<Var> constants)
static Op	rename(Op op, Collection<Var> constants) Rename all variables in a pattern, EXCEPT for those named as constant
static Op	reverseRename(Op op, boolean repeatedly) Undo the effect of the rename operation, once or repeatedly.

Methods inherited from class java.lang.Object

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

Constructor Detail

VarRename

public VarRename()

Method Detail

rename

public static Op rename(Op op,
                        Collection<Var> constants)

Rename all variables in a pattern, EXCEPT for those named as constant

rename

public static ExprList rename(ExprList exprList,
                              Set<Var> constants)

Rename all variables in an expression, EXCEPT for those named as constant

rename

public static Expr rename(Expr expr,
                          Set<Var> constants)

reverseRename

public static Op reverseRename(Op op,
                               boolean repeatedly)

Undo the effect of the rename operation, once or repeatedly. This assumes the op was renamed by VarRename.rename