Examples of org.modeshape.jcr.query.model.SameNodeJoinCondition

org.modeshape.jcr.query.model.SameNodeJoinCondition
A join condition that tests whether two nodes are the same nodes (that is, have the same identifier or have the same relative path from the nearest ancestor with an identifiers).

        // There is only a single source ...
        SelectorName viewName = mapping.getOriginalName();
        SelectorName sourceName = mapping.getSingleMappedSelectorName();


        if (joinCondition instanceof SameNodeJoinCondition) {
            SameNodeJoinCondition condition = (SameNodeJoinCondition)joinCondition;
            SelectorName replacement1 = condition.selector1Name();
            SelectorName replacement2 = condition.selector2Name();
            if (replacement1.equals(viewName)) replacement1 = sourceName;
            if (replacement2.equals(viewName)) replacement2 = sourceName;
            if (replacement1 == condition.selector1Name() && replacement2 == condition.selector2Name()) return condition;
            node.addSelector(replacement1, replacement2);
            if (condition.getSelector2Path() == null) return new SameNodeJoinCondition(replacement1, replacement2);
            return new SameNodeJoinCondition(replacement1, replacement2, condition.getSelector2Path());
        }
        if (joinCondition instanceof ChildNodeJoinCondition) {
            ChildNodeJoinCondition condition = (ChildNodeJoinCondition)joinCondition;
            SelectorName childSelector = condition.childSelectorName();
            SelectorName parentSelector = condition.parentSelectorName();
            if (childSelector.equals(viewName)) childSelector = sourceName;
            if (parentSelector.equals(viewName)) parentSelector = sourceName;
            if (childSelector == condition.childSelectorName() && parentSelector == condition.parentSelectorName()) return condition;
            node.addSelector(childSelector, parentSelector);
            return new ChildNodeJoinCondition(parentSelector, childSelector);
        }
        if (joinCondition instanceof DescendantNodeJoinCondition) {
            DescendantNodeJoinCondition condition = (DescendantNodeJoinCondition)joinCondition;
            SelectorName ancestor = condition.ancestorSelectorName();
            SelectorName descendant = condition.descendantSelectorName();
            if (ancestor.equals(viewName)) ancestor = sourceName;
            if (descendant.equals(viewName)) descendant = sourceName;
            if (ancestor == condition.ancestorSelectorName() && descendant == condition.descendantSelectorName()) return condition;
            node.addSelector(ancestor, descendant);
            return new DescendantNodeJoinCondition(ancestor, descendant);
        }
        return joinCondition;
    }

View Full Code Here

            if ("jcr:path".equals(equiJoin.getProperty1Name())) {
                SelectorName selector1 = equiJoin.selector1Name();
                SelectorName selector2 = equiJoin.selector2Name();
                if ("jcr:path".equals(equiJoin.getProperty2Name())) {
                    // This equijoin should be rewritten as a ISSAMENODE condition ...
                    return new SameNodeJoinCondition(selector1, selector2);
                }
                // Only one side uses "jcr:path", and we cannot handle this ...
                context.getProblems().addError(JcrI18n.equiJoinWithOneJcrPathPseudoColumnIsInvalid, selector1, selector2);
            } else if ("jcr:path".equals(equiJoin.getProperty2Name())) {
                SelectorName selector1 = equiJoin.selector1Name();
                SelectorName selector2 = equiJoin.selector2Name();
                // Only one side uses "jcr:path", and we cannot handle this ...
                context.getProblems().addError(JcrI18n.equiJoinWithOneJcrPathPseudoColumnIsInvalid, selector1, selector2);
            } else if ("mode:id".equals(equiJoin.getProperty1Name())) {
                SelectorName selector1 = equiJoin.selector1Name();
                SelectorName selector2 = equiJoin.selector2Name();
                if ("mode:id".equals(equiJoin.getProperty2Name())) {
                    // This equijoin should be rewritten as a ISSAMENODE condition ...
                    return new SameNodeJoinCondition(selector1, selector2);
                }
                // Only one side uses "jcr:path", and we cannot handle this ...
                context.getProblems().addError(JcrI18n.equiJoinWithOneNodeIdPseudoColumnIsInvalid, selector1, selector2);
            } else if ("mode:id".equals(equiJoin.getProperty2Name())) {
                SelectorName selector1 = equiJoin.selector1Name();

View Full Code Here

                    // context.getProblems().addError(GraphI18n.columnDoesNotExistOnTable, rightColumnName, leftTableName);
                    // continue;
                    // }
                }
            } else if (condition instanceof SameNodeJoinCondition) {
                SameNodeJoinCondition sameNodeCondition = (SameNodeJoinCondition)condition;
                if (sameNodeCondition.getSelector2Path() == null) {
                    // It meets all the criteria, so rewrite this join node ...
                    if (rewrittenSelectors == null) rewrittenSelectors = new HashMap<SelectorName, SelectorName>();
                    rewriteJoinNode(context, joinNode, rewrittenSelectors);
                    ++rewrittenJoins;
                }

View Full Code Here

                parseName(tokens, typeSystem); // jcr:path
                tokens.consume('=');
                SelectorName selector2 = parseSelectorName(tokens, typeSystem);
                tokens.consume('.');
                parseName(tokens, typeSystem); // jcr:path
                joinableSources.add(new SameNodeJoinCondition(selector1, selector2), position);


                // AND has higher precedence than OR, so we need to evaluate it first ...
                while (tokens.canConsume("AND")) {
                    Constraint rhs = parseConstraint(tokens, typeSystem, source);
                    if (rhs != null) constraint = constraint != null ? new And(constraint, rhs) : rhs;

View Full Code Here

        return new ChildNodeJoinCondition(parent, child);
    }


    protected SameNodeJoinCondition sameNodeJoinCondition( SelectorName selector1,
                                                           SelectorName selector2 ) {
        return new SameNodeJoinCondition(selector1, selector2);
    }

View Full Code Here

    }


    protected SameNodeJoinCondition sameNodeJoinCondition( SelectorName selector1,
                                                           SelectorName selector2,
                                                           String path ) {
        return new SameNodeJoinCondition(selector1, selector2, path);
    }

View Full Code Here

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