Package org.modeshape.jcr.query.model

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

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                                TypeSystem typeSystem ) {
        Source source = null;
        tokens.consume("FROM");
        source = parseNamedSelector(tokens, typeSystem);
        while (tokens.hasNext()) {
            JoinType joinType = null;
            if (tokens.canConsume("JOIN") || tokens.canConsume("INNER", "JOIN")) {
                joinType = JoinType.INNER;
            } else if (tokens.canConsume("OUTER", "JOIN") || tokens.canConsume("LEFT", "JOIN")
                       || tokens.canConsume("LEFT", "OUTER", "JOIN")) {
                joinType = JoinType.LEFT_OUTER;
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                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);
            if (swapChildren) {
                PlanNode first = join.getFirstChild();
                first.removeFromParent();
                join.addLastChild(first);
                if (joinType == JoinType.LEFT_OUTER){
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     * @param joinNode the JOIN node; may not be null
     * @return true if the criteria was pushed down, or false otherwise
     */
    protected boolean pushDownJoinCriteria( PlanNode criteriaNode,
                                            PlanNode joinNode ) {
        JoinType joinType = (JoinType)joinNode.getProperty(Property.JOIN_TYPE);

        switch (joinType) {
            case CROSS:
                joinNode.setProperty(Property.JOIN_TYPE, JoinType.INNER);
                moveCriteriaIntoOnClause(criteriaNode, joinNode);
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                NodeSequence left = createNodeSequence(originalQuery, joinQueryContext, leftPlan, leftColumns, sources);
                NodeSequence right = createNodeSequence(originalQuery, joinQueryContext, rightPlan, rightColumns, sources);

                // Figure out the join algorithm ...
                JoinAlgorithm algorithm = plan.getProperty(Property.JOIN_ALGORITHM, JoinAlgorithm.class);
                JoinType joinType = plan.getProperty(Property.JOIN_TYPE, JoinType.class);
                JoinCondition joinCondition = plan.getProperty(Property.JOIN_CONDITION, JoinCondition.class);
                boolean pack = false;
                boolean useHeap = false;
                if (0 >= right.getRowCount() && right.getRowCount() < 100) useHeap = true;
                ExtractFromRow leftExtractor = null;
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Related Classes of org.modeshape.jcr.query.model.JoinType

  • org.modeshape.jcr.query.engine.process.HashJoinSequenceTest
  • org.modeshape.jcr.query.engine.ScanningQueryEngine
  • org.modeshape.jcr.query.optimize.JoinOrder
  • org.modeshape.jcr.query.optimize.PushSelectCriteria
  • org.modeshape.jcr.query.parse.BasicSqlQueryParser
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