| /* |
| * 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.tools; |
| |
| import java.util.Comparator; |
| import org.eclipse.persistence.jpa.jpql.tools.spi.IType; |
| |
| /** |
| * This {@link Comparator} is used to sort {@link IType ITypes} based on the numerical priority. |
| * |
| * @version 2.5 |
| * @since 2.3 |
| * @author Pascal Filion |
| */ |
| public final class NumericTypeComparator implements Comparator<IType> { |
| |
| /** |
| * The helper that gives access to the most common {@link IType types}. |
| */ |
| private final TypeHelper typeHelper; |
| |
| /** |
| * Creates a new <code>NumericTypeComparator</code>. |
| * |
| * @param typeHelper The helper that gives access to the most common {@link IType types} |
| */ |
| public NumericTypeComparator(TypeHelper typeHelper) { |
| super(); |
| this.typeHelper = typeHelper; |
| } |
| |
| @Override |
| public int compare(IType type1, IType type2) { |
| |
| // Same type |
| if (type1.equals(type2)) { |
| return 0; |
| } |
| |
| // Object type |
| IType type = typeHelper.objectType(); |
| if (type1.equals(type)) return -1; |
| if (type2.equals(type)) return 1; |
| |
| // Double |
| type = typeHelper.doubleType(); |
| if (type1.equals(type)) return -1; |
| if (type2.equals(type)) return 1; |
| |
| // Float |
| type = typeHelper.floatType(); |
| if (type1.equals(type)) return -1; |
| if (type2.equals(type)) return 1; |
| |
| // BigDecimal |
| type = typeHelper.bigDecimal(); |
| if (type1.equals(type)) return -1; |
| if (type2.equals(type)) return 1; |
| |
| // BigInteger |
| type = typeHelper.bigInteger(); |
| if (type1.equals(type)) return -1; |
| if (type2.equals(type)) return 1; |
| |
| // Long |
| type = typeHelper.longType(); |
| if (type1.equals(type)) return -1; |
| if (type2.equals(type)) return 1; |
| |
| // Integer |
| type = typeHelper.integerType(); |
| if (type1.equals(type)) return -1; |
| if (type2.equals(type)) return 1; |
| |
| return 1; |
| } |
| } |