Examples of oracle.toplink.essentials.internal.expressions.QueryKeyExpression

     *  Iterate through a list of expressions searching for the given attribute name.
     *  Return true if it is found, false otherwise.
     */
    protected boolean isAttributeNameInJoinedExpressionList(String attributeName, List joinedExpressionList) {
        for (Iterator joinEnum = joinedExpressionList.iterator(); joinEnum.hasNext();) {
            QueryKeyExpression expression = (QueryKeyExpression)joinEnum.next();
            while (!expression.getBaseExpression().isExpressionBuilder()) {
                expression = (QueryKeyExpression)expression.getBaseExpression();
            }
            if (expression.getName().equals(attributeName)) {
                return true;
            }
        }
        return false;
    }

    protected void prepareJoinExpression(Expression expression, AbstractSession session) {
        // Must be query key expression.
        if (!expression.isQueryKeyExpression()) {
            throw QueryException.mappingForExpressionDoesNotSupportJoining(expression);
        }
        QueryKeyExpression objectExpression = (QueryKeyExpression)expression;


        // Expression may not have been initialized.
        objectExpression.getBuilder().setSession(session.getRootSession(null));
        if (objectExpression.getBuilder().getQueryClass() == null){
            objectExpression.getBuilder().setQueryClass(descriptor.getJavaClass());
        }
        // Can only join relationships.
        if ((objectExpression.getMapping() == null) || (!objectExpression.getMapping().isJoiningSupported())) {
            throw QueryException.mappingForExpressionDoesNotSupportJoining(objectExpression);
        }


        // Search if any of the expression traverse a 1-m.
        ObjectExpression baseExpression = objectExpression;

Examples of oracle.toplink.essentials.internal.expressions.QueryKeyExpression

Related Classes of oracle.toplink.essentials.internal.expressions.QueryKeyExpression