private static List<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>> buildDefaultLogicalRewrites() {
List<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>> defaultLogicalRewrites = new ArrayList<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>>();
SequentialFixpointRuleController seqCtrlNoDfs = new SequentialFixpointRuleController(false);
SequentialFixpointRuleController seqCtrlFullDfs = new SequentialFixpointRuleController(true);
SequentialOnceRuleController seqOnceCtrl = new SequentialOnceRuleController(true);
PrioritizedRuleController priorityCtrl = new PrioritizedRuleController();
defaultLogicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(priorityCtrl,
RewriteRuleset.buildPathStepNormalizationRuleCollection()));
defaultLogicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(priorityCtrl,
RewriteRuleset.buildXQueryNormalizationRuleCollection()));
defaultLogicalRewrites.add(new Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>(seqCtrlFullDfs,