| /* |
| * Copyright (c) 2006, 2021 Oracle and/or its affiliates. All rights reserved. |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Public License v. 2.0 which is available at |
| * http://www.eclipse.org/legal/epl-2.0, |
| * or the Eclipse Distribution License v. 1.0 which is available at |
| * http://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: EPL-2.0 OR BSD-3-Clause |
| */ |
| |
| // Contributors: |
| // Oracle - initial API and implementation |
| // |
| package org.eclipse.persistence.jpa.jpql.parser; |
| |
| /** |
| * The query BNF for a function expression returning a string value. |
| * |
| * <div><b>BNF:</b> <code>functions_returning_strings ::= CONCAT(string_primary, string_primary {, string_primary}*) | |
| * SUBSTRING(string_primary, simple_arithmetic_expression [, simple_arithmetic_expression]) | |
| * TRIM([[trim_specification] [trim_character] FROM] string_primary) | |
| * LOWER(string_primary) | UPPER(string_primary)</code><p></p></div> |
| * |
| * @version 2.4 |
| * @since 2.3 |
| * @author Pascal Filion |
| */ |
| @SuppressWarnings("nls") |
| public final class FunctionsReturningStringsBNF extends JPQLQueryBNF { |
| |
| /** |
| * The unique identifier of this BNF rule. |
| */ |
| public static final String ID = "functions_returning_strings"; |
| |
| /** |
| * Creates a new <code>FunctionsReturningStringsBNF</code>. |
| */ |
| public FunctionsReturningStringsBNF() { |
| super(ID); |
| } |
| |
| @Override |
| protected void initialize() { |
| super.initialize(); |
| |
| registerExpressionFactory(ConcatExpressionFactory.ID); |
| registerExpressionFactory(SubstringExpressionFactory.ID); |
| registerExpressionFactory(TrimExpressionFactory.ID); |
| registerExpressionFactory(LowerExpressionFactory.ID); |
| registerExpressionFactory(UpperExpressionFactory.ID); |
| } |
| } |