| /* |
| * Copyright (c) 1998, 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 from Oracle TopLink |
| package org.eclipse.persistence.testing.tests.expressions; |
| |
| import org.eclipse.persistence.expressions.*; |
| |
| public class DefaultingFunctionsExpressionTest extends ReadAllExpressionTest { |
| |
| /** |
| * ReadAllExpressionTest constructor comment. |
| * @param referenceClass java.lang.Class |
| * @param originalObjectsSize int |
| */ |
| public DefaultingFunctionsExpressionTest(Class referenceClass, int originalObjectsSize) { |
| super(referenceClass, originalObjectsSize); |
| } |
| |
| /** |
| * Test that when the user uses getFunction(FOO) we will print it as a function |
| * FOO, even though we've never heard of it before. |
| * This is tricky to test, since we can break the test by including function support, |
| * so use a function we do support, but invoke it by database selector (LOWER)rather than |
| * Java selector (toLowerCase) |
| */ |
| @Override |
| public void setup() { |
| // This is slightly tricky. We use the same function as toLowerCase, |
| // but get the platform's name for it. |
| ExpressionOperator op = getSession().getLogin().getPlatform().getOperator(ExpressionOperator.ToLowerCase); |
| String lowerCaseFunctionName; |
| if (op == null) { |
| lowerCaseFunctionName = "LOWER"; |
| } else { |
| String withBracket = op.getDatabaseStrings()[0]; |
| lowerCaseFunctionName = withBracket.substring(0, withBracket.length() - 1); |
| } |
| |
| ExpressionBuilder emp = new ExpressionBuilder(); |
| expression = emp.get("firstName").getFunction(lowerCaseFunctionName).equal("sarah"); |
| getQuery(true).setSelectionCriteria(expression); |
| |
| super.setup(); |
| } |
| } |