Package javax.jcr.query.qom

Examples of javax.jcr.query.qom.JoinCondition

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    }

    private JoinCondition parseJoinCondition() throws RepositoryException {
        boolean identifier = currentTokenType == IDENTIFIER;
        String name = readName();
        JoinCondition c;
        if (identifier && readIf("(")) {
            if ("ISSAMENODE".equalsIgnoreCase(name)) {
                String selector1 = readName();
                read(",");
                String selector2 = readName();
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            }
            read("JOIN");
            selector = parseSelector();
            selectors.add(selector);
            read("ON");
            JoinCondition on = parseJoinCondition();
            source = type.join(factory, source, selector, on);
        }
        return source;
    }
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    }

    private JoinCondition parseJoinCondition() throws RepositoryException {
        boolean identifier = currentTokenType == IDENTIFIER;
        String name = readName();
        JoinCondition c;
        if (identifier && readIf("(")) {
            if ("ISSAMENODE".equalsIgnoreCase(name)) {
                String selector1 = readName();
                read(",");
                String selector2 = readName();
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            }
            read("JOIN");
            selector = parseSelector();
            selectors.add(selector);
            read("ON");
            JoinCondition on = parseJoinCondition();
            source = type.join(factory, source, selector, on);
        }
        return source;
    }
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    }

    private JoinCondition parseJoinCondition() throws RepositoryException {
        boolean identifier = currentTokenType == IDENTIFIER;
        String name = readName();
        JoinCondition c;
        if (identifier && readIf("(")) {
            if ("ISSAMENODE".equalsIgnoreCase(name)) {
                String selector1 = readName();
                read(",");
                String selector2 = readName();
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    public PlanNode execute( final QueryContext context,
                             PlanNode plan,
                             LinkedList<OptimizerRule> ruleStack ) {
        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);
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            }
            return node;
        }
        if (source instanceof Join) {
            Join join = (Join)source;
            JoinCondition joinCondition = join.getJoinCondition();
            // Set up new join node corresponding to this join predicate
            PlanNode node = new PlanNode(Type.JOIN);
            node.setProperty(Property.JOIN_TYPE, join.type());
            node.setProperty(Property.JOIN_ALGORITHM, JoinAlgorithm.NESTED_LOOP);
            node.setProperty(Property.JOIN_CONDITION, joinCondition);
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                                }
                            }
                        }
                    } else if (node.getType() == Type.JOIN) {
                        // Also look at the join conditions ...
                        JoinCondition joinCondition = node.getProperty(Property.JOIN_CONDITION, JoinCondition.class);
                        if (joinCondition != null) {
                            joinConditions.add(joinCondition);
                        }
                        // Look for additional constraints pushed down to the join ...
                        List<Constraint> joinConstraints = node.getPropertyAsList(Property.JOIN_CONSTRAINTS, Constraint.class);
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Related Classes of javax.jcr.query.qom.JoinCondition

  • org.apache.jackrabbit.commons.query.sql2.Parser
  • org.apache.jackrabbit.core.query.lucene.join.JoinMerger
  • org.apache.jackrabbit.spi.commons.query.sql2.Parser
  • org.apache.jackrabbit.test.api.query.qom.ChildNodeJoinConditionTest
  • org.apache.jackrabbit.test.api.query.qom.DescendantNodeJoinConditionTest
  • org.apache.jackrabbit.test.api.query.qom.EquiJoinConditionTest
  • org.apache.jackrabbit.test.api.query.qom.OrderingTest
  • org.apache.jackrabbit.test.api.query.qom.QueryObjectModelFactoryTest
  • org.apache.jackrabbit.test.api.query.qom.SameNodeJoinConditionTest
  • org.modeshape.jcr.query.optimize.AddIndexes
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