/******************************************************************************* * Copyright (c) 2006, 2015 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 v1.0 and Eclipse Distribution License v. 1.0 * which accompanies this distribution. * The Eclipse Public License is available at http://www.eclipse.org/legal/epl-v10.html * and the Eclipse Distribution License is available at * http://www.eclipse.org/org/documents/edl-v10.php. * * Contributors: * Oracle - initial API and implementation * ******************************************************************************/ package org.eclipse.persistence.jpa.jpql.parser; /** * The query BNF for a function expression returning a numeric value. * <p> * JPA 1.0: * <div><b>BNF:</b> <code>functions_returning_numerics::= LENGTH(string_primary) | * LOCATE(string_primary, string_primary[, simple_arithmetic_expression]) | * ABS(simple_arithmetic_expression) | SQRT(simple_arithmetic_expression) | * MOD(simple_arithmetic_expression, simple_arithmetic_expression) | * SIZE(collection_valued_path_expression)</code><p></div> * * JPA 2.0: * <div><b>BNF:</b> <code>functions_returning_numerics::= LENGTH(string_primary) | * LOCATE(string_primary, string_primary[, simple_arithmetic_expression]) | * ABS(simple_arithmetic_expression) | SQRT(simple_arithmetic_expression) | * MOD(simple_arithmetic_expression, simple_arithmetic_expression) | * SIZE(collection_valued_path_expression) | * INDEX(identification_variable)</code><p></div> * * @version 2.4 * @since 2.3 * @author Pascal Filion */ @SuppressWarnings("nls") public final class FunctionsReturningNumericsBNF extends JPQLQueryBNF { /** * The unique identifier of this BNF rule. */ public static final String ID = "functions_returning_numerics"; /** * Creates a new <code>FunctionsReturningNumericsBNF</code>. */ public FunctionsReturningNumericsBNF() { super(ID); } /** * {@inheritDoc} */ @Override protected void initialize() { super.initialize(); registerExpressionFactory(LengthExpressionFactory.ID); registerExpressionFactory(LocateExpressionFactory.ID); registerExpressionFactory(AbsExpressionFactory.ID); registerExpressionFactory(SqrtExpressionFactory.ID); registerExpressionFactory(ModExpressionFactory.ID); registerExpressionFactory(SizeExpressionFactory.ID); } }