Package org.modeshape.jcr.query.model

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

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        for (PlanNode join : plan.findAllAtOrBelow(Type.JOIN)) {
            // Get the join condition ...
            JoinCondition joinCondition = join.getProperty(Property.JOIN_CONDITION, JoinCondition.class);
            if (joinCondition instanceof EquiJoinCondition) {
                EquiJoinCondition equiJoinCondition = (EquiJoinCondition)joinCondition;
                SelectorName selector1 = equiJoinCondition.selector1Name();
                SelectorName selector2 = equiJoinCondition.selector2Name();
                String property1 = equiJoinCondition.getProperty1Name();
                String property2 = equiJoinCondition.getProperty2Name();

                // Walk up the tree looking for SELECT nodes that apply to one of the sides ...
                PlanNode node = join.getParent();
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                                                       JoinCondition joinCondition,
                                                       ColumnMapping mapping,
                                                       PlanNode node ) {
        if (joinCondition instanceof EquiJoinCondition) {
            EquiJoinCondition condition = (EquiJoinCondition)joinCondition;
            SelectorName replacement1 = condition.selector1Name();
            SelectorName replacement2 = condition.selector2Name();
            String property1 = condition.getProperty1Name();
            String property2 = condition.getProperty2Name();
            if (replacement1.equals(mapping.getOriginalName())) {
                Column sourceColumn = mapping.getMappedColumn(property1);
                if (sourceColumn != null) {
                    replacement1 = sourceColumn.selectorName();
                    property1 = sourceColumn.getPropertyName();
                }
            }
            if (replacement2.equals(mapping.getOriginalName())) {
                Column sourceColumn = mapping.getMappedColumn(property2);
                if (sourceColumn != null) {
                    replacement2 = sourceColumn.selectorName();
                    property2 = sourceColumn.getPropertyName();
                }
            }
            if (replacement1 == condition.selector1Name() && replacement2 == condition.selector2Name()) return condition;
            node.addSelector(replacement1, replacement2);
            return new EquiJoinCondition(replacement1, property1, replacement2, property2);
        }
        // All the remaining conditions can only be rewritten if there is a single source ...
        if (!mapping.isMappedToSingleSelector()) return joinCondition;

        // 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;
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        for (PlanNode join : plan.findAllAtOrBelow(Type.JOIN)) {
            boolean swapChildren = false;
            JoinCondition joinCondition = join.getProperty(Property.JOIN_CONDITION, JoinCondition.class);
            if (joinCondition instanceof DescendantNodeJoinCondition) {
                DescendantNodeJoinCondition condition = (DescendantNodeJoinCondition)joinCondition;
                SelectorName ancestorSelector = condition.ancestorSelectorName();
                // The ancestor needs to be on the left side of the join ...
                swapChildren = !join.getFirstChild().getSelectors().contains(ancestorSelector);
            } else if (joinCondition instanceof ChildNodeJoinCondition) {
                ChildNodeJoinCondition condition = (ChildNodeJoinCondition)joinCondition;
                SelectorName parentSelector = condition.parentSelectorName();
                // The ancestor needs to be on the left side of the join ...
                swapChildren = !join.getFirstChild().getSelectors().contains(parentSelector);
            }

            JoinType joinType = join.getProperty(Property.JOIN_TYPE, JoinType.class);
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        if (optimizedPlan.getType() == Type.SOURCE) {
            PlanNode source = optimizedPlan;
            List<Schemata.Column> schemataColumns = source.getPropertyAsList(Property.SOURCE_COLUMNS, Schemata.Column.class);
            List<Column> columns = new ArrayList<>(schemataColumns.size());
            List<String> columnTypes = new ArrayList<>(schemataColumns.size());
            SelectorName selector = source.getSelectors().iterator().next();
            for (Schemata.Column schemataColumn : schemataColumns) {
                Column column = new Column(selector, schemataColumn.getName(), schemataColumn.getName());
                columns.add(column);
                columnTypes.add(schemataColumn.getPropertyTypeName());
            }
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                                orderings.add((Ordering)orderBy);
                            }
                            // Determine the alias-to-name mappings for the selectors in the orderings ...
                            Map<SelectorName, SelectorName> sourceNamesByAlias = new HashMap<SelectorName, SelectorName>();
                            for (PlanNode source : plan.findAllAtOrBelow(Type.SOURCE)) {
                                SelectorName name = source.getProperty(Property.SOURCE_NAME, SelectorName.class);
                                SelectorName alias = source.getProperty(Property.SOURCE_ALIAS, SelectorName.class);
                                if (alias != null) sourceNamesByAlias.put(alias, name);
                            }
                            // If there are multiple orderings, then we'll never have nulls. But if there is just one ordering,
                            // we have to handle nulls ...
                            if (orderings.size() == 1) {
                                nullOrder = orderings.get(0).nullOrder();
                            }
                            // Now create the single sorting extractor ...
                            sortExtractor = createSortingExtractor(orderings, sourceNamesByAlias, context, columns, sources);
                        } else {
                            // Order by the location(s) because it's before a merge-join ...
                            final TypeFactory<?> keyType = context.getTypeSystem().getReferenceFactory();
                            List<ExtractFromRow> extractors = new ArrayList<>();
                            for (Object ordering : orderBys) {
                                SelectorName selectorName = (SelectorName)ordering;
                                final int index = columns.getSelectorIndex(selectorName.name());
                                extractors.add(new ExtractFromRow() {
                                    @Override
                                    public TypeFactory<?> getType() {
                                        return keyType;
                                    }
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        // For each of the JOIN nodes ...
        for (PlanNode joinNode : plan.findAllAtOrBelow(Type.JOIN)) {
            JoinCondition condition = joinNode.getProperty(Property.JOIN_CONDITION, JoinCondition.class);
            if (condition instanceof EquiJoinCondition) {
                EquiJoinCondition equiJoinCondition = (EquiJoinCondition)condition;
                SelectorName selector1 = equiJoinCondition.selector1Name();
                Column joinColumn1 = columnFor(equiJoinCondition.selector1Name(),
                                               equiJoinCondition.getProperty1Name(),
                                               includeSourceName);
                Column joinColumn2 = columnFor(equiJoinCondition.selector2Name(),
                                               equiJoinCondition.getProperty2Name(),
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        for (PlanNode join : plan.findAllAtOrBelow(Type.JOIN)) {
            // Get the join condition ...
            JoinCondition joinCondition = join.getProperty(Property.JOIN_CONDITION, JoinCondition.class);
            if (joinCondition instanceof EquiJoinCondition) {
                EquiJoinCondition equiJoinCondition = (EquiJoinCondition)joinCondition;
                SelectorName selector1 = equiJoinCondition.selector1Name();
                SelectorName selector2 = equiJoinCondition.selector2Name();
                String property1 = equiJoinCondition.getProperty1Name();
                String property2 = equiJoinCondition.getProperty2Name();

                // Walk up the tree looking for SELECT nodes that apply to one of the sides ...
                PlanNode node = join.getParent();
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    protected JoinCondition rewrite( QueryContext context,
                                     JoinCondition condition ) {
        if (condition instanceof EquiJoinCondition) {
            EquiJoinCondition equiJoin = (EquiJoinCondition)condition;
            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();
                SelectorName selector2 = equiJoin.selector2Name();
                // Only one side uses "jcr:path", and we cannot handle this ...
                context.getProblems().addError(JcrI18n.equiJoinWithOneNodeIdPseudoColumnIsInvalid, selector1, selector2);
            }
        }
        return condition;
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        // Find the names of the selectors ...
        Set<SelectorName> names = new HashSet<SelectorName>();
        for (PlanNode source : planNode.findAllAtOrBelow(Type.SOURCE)) {
            names.add(source.getProperty(Property.SOURCE_NAME, SelectorName.class));
            SelectorName alias = source.getProperty(Property.SOURCE_ALIAS, SelectorName.class);
            if (alias != null) names.add(alias);
        }

        // Add the PROJECT columns first ...
        RequiredColumnVisitor collectionVisitor = new RequiredColumnVisitor(names);
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        List<String> types = new ArrayList<String>(columns.size());
        List<PlanNode> sources = node.findAllAtOrBelow(Type.SOURCE);
        for (Column column : columns) {
            boolean added = false;
            for (PlanNode source : sources) {
                SelectorName alias = source.getProperty(Property.SOURCE_ALIAS, SelectorName.class);
                SelectorName name = source.getProperty(Property.SOURCE_NAME, SelectorName.class);
                if ((alias != null && alias.equals(column.selectorName())) || name.equals(column.selectorName())) {
                    List<Schemata.Column> sourceColumns = source.getPropertyAsList(Property.SOURCE_COLUMNS, Schemata.Column.class);
                    for (Schemata.Column sourceColumn : sourceColumns) {
                        if (sourceColumn.getName().equals(column.getColumnName())
                            || sourceColumn.getName().equals(column.getPropertyName())) {
                            types.add(sourceColumn.getPropertyTypeName());
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