Examples of org.apache.jackrabbit.spi.commons.query.jsr283.qom.QueryObjectModel

Package org.apache.jackrabbit.spi.commons.query.jsr283.qom

Examples of org.apache.jackrabbit.spi.commons.query.jsr283.qom.QueryObjectModel

org.apache.jackrabbit.spi.commons.query.jsr283.qom.JoinCondition
A query in the JCR query object model.
The JCR query object model describes the queries that can be evaluated by a JCR repository independent of any particular query language, such as SQL.
A query consists of:
- a source. When the query is evaluated, the source evaluates its selectors and the joins between them to produce a (possibly empty) set of node-tuples. This is a set of 1-tuples if the query has one selector (and therefore no joins), a set of 2-tuples if the query has two selectors (and therefore one join), a set of 3-tuples if the query has three selectors (two joins), and so forth.
- an optional constraint. When the query is evaluated, the constraint filters the set of node-tuples.
- a list of zero or more orderings. The orderings specify the order in which the node-tuples appear in the query results. The relative order of two node-tuples is determined by evaluating the specified orderings, in list order, until encountering an ordering for which one node-tuple precedes the other. If no orderings are specified, or if for none of the specified orderings does one node-tuple precede the other, then the relative order of the node-tuples is implementation determined (and may be arbitrary).
- a list of zero or more columns to include in the tabular view of the query results. If no columns are specified, the columns available in the tabular view are implementation determined, but minimally include, for each selector, a column for each single-valued non-residual property of the selector's node type.
The query object model representation of a query is created by factory methods in the {@link QueryObjectModelFactory}. @since JCR 2.0

        }
    }


    // Page 136
    private Constraint parseConstraint() throws RepositoryException {
        Constraint a = parseAnd();
        while (readIf("OR")) {
            a = factory.or(a, parseAnd());
        }
        return a;
    }

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        }
        return a;
    }


    private Constraint parseAnd() throws RepositoryException {
        Constraint a = parseCondition();
        while (readIf("AND")) {
            a = factory.and(a, parseCondition());
        }
        return a;
    }

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        return a;
    }


    // Page 138
    private Constraint parseCondition() throws RepositoryException {
        Constraint a;
        if (readIf("NOT")) {
            a = parseConstraint();
        } else if (readIf("(")) {
            a = parseConstraint();
            read(")");

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        return a;
    }


    // Page 141
    private Constraint parseCondition(DynamicOperand left) throws RepositoryException {
        Constraint c;
        if (readIf("=")) {
            c = factory.comparison(left,
                    QueryObjectModelConstants.OPERATOR_EQUAL_TO,
                    parseStaticOperand());
        } else if (readIf("<>")) {

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        }
    }


    // Page 144
    private Constraint parseConditionFuntionIf(String functionName) throws RepositoryException {
        Constraint c;
        if ("CONTAINS".equals(functionName)) {
            String name = readName();
            if (readIf(".")) {
                if (readIf("*")) {
                    read(",");

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        } else if (currentTokenType == IDENTIFIER) {
            String identifier = readName();
            if (readIf("(")) {
                a = parseConditionFuntionIf(identifier);
                if (a == null) {
                    DynamicOperand op = parseExpressionFunction(identifier);
                    a = parseCondition(op);
                }
            } else if (readIf(".")) {
                a = parseCondition(factory.propertyValue(identifier, readName()));
            } else {

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            return parsePropertyValue(name);
        }
    }


    private DynamicOperand parseExpressionFunction(String functionName) throws RepositoryException {
        DynamicOperand op;
        if ("LENGTH".equals(functionName)) {
            op = factory.length(parsePropertyValue(readName()));
        } else if ("NAME".equals(functionName)) {
            if (isToken(")")) {
                op = factory.nodeName();

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    // Page 157
    private Ordering[] parseOrder() throws RepositoryException {
        ArrayList orderList = new ArrayList();
        do {
            Ordering ordering;
            DynamicOperand op = parseDynamicOperand();
            if (readIf("DESC")) {
                ordering = factory.descending(op);
            } else {
                readIf("ASC");
                ordering = factory.ascending(op);

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            }
            read("JOIN");
            selector = parseSelector();
            selectors.add(selector);
            read("ON");
            JoinCondition on = parseJoinCondition();
            source = factory.join(source, selector, type, on);
        }
        return source;
    }

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    // Page 130
    private JoinCondition parseJoinCondition() throws RepositoryException {
        boolean identifier = currentTokenType == IDENTIFIER;
        String name = readName();
        JoinCondition c;
        if (identifier && readIf("(")) {
            if ("ISSAMENODE".equals(name)) {
                String selector1 = readName();
                read(",");
                String selector2 = readName();

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org.apache.jackrabbit.api.jsr283.query.qom.AbstractJoinTest

org.apache.jackrabbit.api.jsr283.query.qom.ChildNodeJoinConditionTest

org.apache.jackrabbit.api.jsr283.query.qom.DescendantNodeJoinConditionTest

org.apache.jackrabbit.api.jsr283.query.qom.EquiJoinConditionTest

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