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

Example 1 with CompoundExpression

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

the class AbstractGrammarValidator method validateCompoundExpression.

protected void validateCompoundExpression(CompoundExpression expression, String identifier, String missingLeftExpression, String invalidLeftExpression, String missingRightExpression, String invalidRightExpression, String leftExpressionQueryBNF, String rightExpressionQueryBNF) {
    // Missing left expression
    if (!expression.hasLeftExpression()) {
        int startPosition = position(expression);
        addProblem(expression, startPosition, missingLeftExpression);
    } else {
        Expression leftExpression = expression.getLeftExpression();
        // Invalid left expression
        if (!isValid(leftExpression, leftExpressionQueryBNF)) {
            int startPosition = position(expression);
            int endPosition = startPosition + length(leftExpression);
            addProblem(expression, startPosition, endPosition, invalidLeftExpression);
        } else {
            leftExpression.accept(this);
        }
    }
    // Missing right expression
    if (!expression.hasRightExpression()) {
        int startPosition = position(expression) + length(expression.getLeftExpression()) + (expression.hasLeftExpression() ? 1 : 0) + identifier.length() + (expression.hasSpaceAfterIdentifier() ? 1 : 0);
        addProblem(expression, startPosition, missingRightExpression);
    } else {
        Expression rightExpression = expression.getRightExpression();
        // Invalid right expression
        if (!isValid(rightExpression, rightExpressionQueryBNF)) {
            int startPosition = position(expression) + length(expression.getLeftExpression()) + (expression.hasLeftExpression() ? 1 : 0) + identifier.length() + (expression.hasSpaceAfterIdentifier() ? 1 : 0);
            int endPosition = startPosition + length(rightExpression);
            addProblem(expression, startPosition, endPosition, invalidRightExpression);
        } else {
            rightExpression.accept(this);
        }
    }
}

Example 2 with CompoundExpression

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

the class AbstractSemanticValidator method validateFunctionPathExpression.

/**
 * Validates the left and right expressions of the given compound expression. The test to perform is:
 * <ul>
 * <li>If the left or the right expression is a path expression, validation makes sure it is a
 * basic mapping, an association field is not allowed.</li>
 * </ul>
 *
 * @param expression The {@link CompoundExpression} to validate by validating its left and right
 * expressions
 * @param pathType The type of field that is allowed
 * @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 validateFunctionPathExpression(CompoundExpression expression, PathType pathType) {
    int result = 0;
    // Left expression
    if (expression.hasLeftExpression()) {
        Expression leftExpression = expression.getLeftExpression();
        StateFieldPathExpression pathExpression = getStateFieldPathExpression(leftExpression);
        if (pathExpression != null) {
            boolean valid = validateStateFieldPathExpression(pathExpression, pathType);
            updateStatus(result, 0, valid);
        } else {
            leftExpression.accept(this);
        }
    }
    // Right expression
    if (expression.hasRightExpression()) {
        Expression rightExpression = expression.getRightExpression();
        StateFieldPathExpression pathExpression = getStateFieldPathExpression(rightExpression);
        if (pathExpression != null) {
            boolean valid = validateStateFieldPathExpression(pathExpression, pathType);
            updateStatus(result, 1, valid);
        } else {
            rightExpression.accept(this);
        }
    }
    return result;
}

Example 3 with CompoundExpression

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

the class AbstractActualJPQLQueryFormatter method toStringCompound.

protected void toStringCompound(CompoundExpressionStateObject stateObject, String identifier) {
    if (stateObject.isDecorated()) {
        toText(stateObject);
    } else {
        CompoundExpression expression = stateObject.getExpression();
        // Left expression
        if (stateObject.hasLeft()) {
            stateObject.getLeft().accept(this);
            writer.append(SPACE);
        }
        // Identifier
        appendIdentifier((expression != null) ? expression.getActualIdentifier() : identifier, identifier);
        if (shouldOutput(expression) || expression.hasSpaceAfterIdentifier()) {
            writer.append(SPACE);
        }
        // Right expression
        if (stateObject.hasRight()) {
            stateObject.getRight().accept(this);
        }
    }
}