Examples with CollectionMemberExpression org.eclipse.persistence.jpa.jpql.parser.CollectionMemberExpression used on opensource projects

Example 1 with CollectionMemberExpression

use of org.eclipse.persistence.jpa.jpql.parser.CollectionMemberExpression in project eclipselink by eclipse-ee4j.

the class AbstractActualJPQLQueryFormatter method visit.

@Override
public void visit(CollectionMemberExpressionStateObject stateObject) {
    if (stateObject.isDecorated()) {
        toText(stateObject);
    } else {
        CollectionMemberExpression expression = stateObject.getExpression();
        // Entity or value expression
        if (stateObject.hasEntityStateObject()) {
            stateObject.getEntityStateObject().accept(this);
            writer.append(SPACE);
        }
        // 'NOT'
        if (stateObject.hasNot()) {
            appendIdentifier((expression != null) ? expression.getActualNotIdentifier() : NOT, NOT);
            writer.append(SPACE);
        }
        // 'MEMBER'
        appendIdentifier((expression != null) ? expression.getActualMemberIdentifier() : MEMBER, MEMBER);
        if (shouldOutput(expression) || expression.hasSpaceAfterMember()) {
            writer.append(SPACE);
        }
        // 'OF'
        if (stateObject.hasOf()) {
            appendIdentifier((expression != null) ? expression.getActualOfIdentifier() : OF, OF);
            if (shouldOutput(expression) || expression.hasSpaceAfterOf()) {
                writer.append(SPACE);
            }
        }
        // Collection-valued path expression
        stateObject.getCollectionValuedPath().accept(this);
    }
}

Example 2 with CollectionMemberExpression

use of org.eclipse.persistence.jpa.jpql.parser.CollectionMemberExpression in project eclipselink by eclipse-ee4j.

the class AbstractSemanticValidator method validateCollectionMemberExpression.

/**
 * Validates the given {@link CollectionMemberExpression}. Only the collection-valued path
 * expression is validated.
 *
 * @param expression The {@link CollectionMemberExpression} to validate
 * @return A number indicating the validation result. {@link #isValid(int, int)} can be used to
 * determine the validation status of an expression based on its position
 */
protected int validateCollectionMemberExpression(CollectionMemberExpression expression) {
    int result = 0;
    // Validate the entity expression
    if (expression.hasEntityExpression()) {
        Expression entityExpression = expression.getEntityExpression();
        // Special case for state field path expression, association field is allowed
        StateFieldPathExpression pathExpression = getStateFieldPathExpression(entityExpression);
        if (pathExpression != null) {
            boolean valid = validateStateFieldPathExpression(pathExpression, PathType.ASSOCIATION_FIELD_ONLY);
            updateStatus(result, 0, valid);
        } else {
            entityExpression.accept(this);
        }
    }
    // Validate the collection-valued path expression
    boolean valid = validateCollectionValuedPathExpression(expression.getCollectionValuedPathExpression(), true);
    updateStatus(result, 1, valid);
    return result;
}

Example 3 with CollectionMemberExpression

use of org.eclipse.persistence.jpa.jpql.parser.CollectionMemberExpression in project eclipselink by eclipse-ee4j.

the class ExpressionBuilderVisitor method visit.

@Override
public void visit(CollectionMemberExpression expression) {
    // Create the expression for the entity expression
    expression.getEntityExpression().accept(this);
    Expression entityExpression = queryExpression;
    if (expression.hasNot()) {
        CollectionValuedPathExpression pathExpression = (CollectionValuedPathExpression) expression.getCollectionValuedPathExpression();
        // Retrieve the ExpressionBuilder from the collection-valued path expression's
        // identification variable and the variable name
        pathExpression.getIdentificationVariable().accept(this);
        Expression parentExpression = queryExpression;
        // Now create the actual expression
        Expression newBuilder = new ExpressionBuilder();
        Expression collectionBase = newBuilder;
        for (int i = 1; i < pathExpression.pathSize() - 1; i++) {
            // nested paths must be single valued.
            collectionBase = collectionBase.get(pathExpression.getPath(i));
        }
        String lastPath = pathExpression.getPath(pathExpression.pathSize() - 1);
        // The following code is copied from Expression.noneOf and altered a bit
        Expression criteria = newBuilder.equal(parentExpression).and(collectionBase.anyOf(lastPath).equal(entityExpression));
        ReportQuery subQuery = new ReportQuery();
        subQuery.setShouldRetrieveFirstPrimaryKey(true);
        subQuery.setSelectionCriteria(criteria);
        // subQuery has the same reference class as parentExpression (which is an ExpressionBuilder).
        subQuery.setReferenceClass(((ExpressionBuilder) parentExpression).getQueryClass());
        queryExpression = parentExpression.notExists(subQuery);
    } else {
        // Create the expression for the collection-valued path expression
        expression.getCollectionValuedPathExpression().accept(this);
        // Create the MEMBER OF expression
        queryExpression = queryExpression.equal(entityExpression);
    }
}

Example 4 with CollectionMemberExpression

use of org.eclipse.persistence.jpa.jpql.parser.CollectionMemberExpression in project eclipselink by eclipse-ee4j.

the class AbstractGrammarValidator method visit.

@Override
public void visit(CollectionMemberExpression expression) {
    // Missing entity expression
    if (!expression.hasEntityExpression()) {
        int startPosition = position(expression);
        addProblem(expression, startPosition, CollectionMemberExpression_MissingEntityExpression);
    }
    // Missing collection valued path expression
    if (!expression.hasCollectionValuedPathExpression()) {
        int startPosition = position(expression) + length(expression.getEntityExpression()) + (expression.hasEntityExpression() ? 1 : 0) + (expression.hasNot() ? 4 : /* NOT + whitespace */
        0) + 6 + /* MEMBER */
        (expression.hasSpaceAfterMember() ? 1 : 0) + (expression.hasOf() ? 2 : 0) + (expression.hasSpaceAfterOf() ? 1 : 0);
        addProblem(expression, startPosition, CollectionMemberExpression_MissingCollectionValuedPathExpression);
    } else {
        Expression pathExpression = expression.getCollectionValuedPathExpression();
        // The expression is not a path expression
        if (!isValid(pathExpression, CollectionValuedPathExpressionBNF.ID)) {
            int startPosition = position(expression) + length(expression.getEntityExpression()) + (expression.hasEntityExpression() ? 1 : 0) + (expression.hasNot() ? 4 : /* NOT + whitespace */
            0) + 6 + /* MEMBER */
            (expression.hasSpaceAfterMember() ? 1 : 0) + (expression.hasOf() ? 2 : 0) + (expression.hasSpaceAfterOf() ? 1 : 0);
            int endPosition = startPosition + length(pathExpression);
            addProblem(expression, startPosition, endPosition, CollectionValuedPathExpression_NotCollectionType, expression.toParsedText());
        }
    }
    super.visit(expression);
}

Example 5 with CollectionMemberExpression

use of org.eclipse.persistence.jpa.jpql.parser.CollectionMemberExpression in project eclipselink by eclipse-ee4j.

the class DefaultSemanticValidator method validateCollectionMemberExpression.

@Override
protected int validateCollectionMemberExpression(CollectionMemberExpression expression) {
    int result = super.validateCollectionMemberExpression(expression);
    if (isValid(result, 0) && expression.hasEntityExpression()) {
        Expression entityExpression = expression.getEntityExpression();
        // Check for embeddable type
        Object type = helper.getType(entityExpression);
        if (helper.getEmbeddable(type) != null) {
            addProblem(entityExpression, CollectionMemberExpression_Embeddable);
            updateStatus(result, 0, false);
        }
    }
    return result;
}