Examples of org.jboss.dna.graph.query.model.And

org.jboss.dna.graph.query.model.And
A constraint that evaluates to true when both of the other constraints evaluate to true.


    public static Constraint replaceReferencesToRemovedSource( QueryContext context,
                                                               Constraint constraint,
                                                               Map<SelectorName, SelectorName> rewrittenSelectors ) {
        if (constraint instanceof And) {
            And and = (And)constraint;
            Constraint left = replaceReferencesToRemovedSource(context, and.getLeft(), rewrittenSelectors);
            Constraint right = replaceReferencesToRemovedSource(context, and.getRight(), rewrittenSelectors);
            if (left == and.getLeft() && right == and.getRight()) return and;
            return new And(left, right);
        }
        if (constraint instanceof Or) {
            Or or = (Or)constraint;
            Constraint left = replaceReferencesToRemovedSource(context, or.getLeft(), rewrittenSelectors);
            Constraint right = replaceReferencesToRemovedSource(context, or.getRight(), rewrittenSelectors);

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    public static Constraint replaceReferences( QueryContext context,
                                                Constraint constraint,
                                                ColumnMapping mapping,
                                                PlanNode node ) {
        if (constraint instanceof And) {
            And and = (And)constraint;
            Constraint left = replaceReferences(context, and.getLeft(), mapping, node);
            Constraint right = replaceReferences(context, and.getRight(), mapping, node);
            if (left == and.getLeft() && right == and.getRight()) return and;
            return new And(left, right);
        }
        if (constraint instanceof Or) {
            Or or = (Or)constraint;
            Constraint left = replaceReferences(context, or.getLeft(), mapping, node);
            Constraint right = replaceReferences(context, or.getRight(), mapping, node);

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                    return !original.satisfiesConstraints(tuple);
                }
            };
        }
        if (constraint instanceof And) {
            And andConstraint = (And)constraint;
            final ConstraintChecker left = createChecker(types, schemata, columns, andConstraint.getLeft(), variables, analyzer);
            final ConstraintChecker right = createChecker(types, schemata, columns, andConstraint.getRight(), variables, analyzer);
            return new ConstraintChecker() {
                public boolean satisfiesConstraints( Object[] tuple ) {
                    return left.satisfiesConstraints(tuple) && right.satisfiesConstraints(tuple);
                }
            };

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    protected void separateAndConstraints( Constraint constraint,
                                           List<Constraint> andableConstraints ) {
        if (constraint == null) return;
        assert andableConstraints != null;
        if (constraint instanceof And) {
            And and = (And)constraint;
            separateAndConstraints(and.getLeft(), andableConstraints);
            separateAndConstraints(and.getRight(), andableConstraints);
        } else {
            andableConstraints.add(constraint);
        }
    }

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            if (left != null && constraint != null) {
                if (and) {
                    // If the left constraint is an OR, we need to rearrange things since AND is higher precedence ...
                    if (left instanceof Or) {
                        Or previous = (Or)left;
                        constraint = new Or(previous.getLeft(), new And(previous.getRight(), constraint));
                    } else {
                        constraint = new And(left, constraint);
                    }
                } else {
                    constraint = new Or(left, constraint);
                }
                left = null;

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            String msg = GraphI18n.expectingConstraintCondition.text(tokens.consume(), pos.getLine(), pos.getColumn());
            throw new ParsingException(pos, msg);
        }
        // AND has higher precedence than OR, so we need to evaluate it first ...
        while (tokens.canConsume("AND")) {
            constraint = new And(constraint, parseConstraint(tokens, typeSystem, source));
        }
        while (tokens.canConsume("OR")) {
            constraint = new Or(constraint, parseConstraint(tokens, typeSystem, source));
        }
        return constraint;

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    protected List<Constraint> getAndedConstraint( Constraint constraint,
                                                   List<Constraint> andedConstraints ) {
        if (constraint != null) {
            if (constraint instanceof And) {
                And and = (And)constraint;
                getAndedConstraint(and.getLeft(), andedConstraints);
                getAndedConstraint(and.getRight(), andedConstraints);
            } else {
                andedConstraints.add(constraint);
            }
        }
        return andedConstraints;

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    protected List<Constraint> getAndedConstraint( Constraint constraint,
                                                   List<Constraint> andedConstraints ) {
        if (constraint != null) {
            if (constraint instanceof And) {
                And and = (And)constraint;
                getAndedConstraint(and.getLeft(), andedConstraints);
                getAndedConstraint(and.getRight(), andedConstraints);
            } else {
                andedConstraints.add(constraint);
            }
        }
        return andedConstraints;

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