| /* |
| * Copyright (c) 2018, 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 |
| */ |
| |
| package org.eclipse.persistence.internal.jpa.querydef; |
| |
| import java.util.List; |
| import java.util.Vector; |
| |
| import jakarta.persistence.criteria.Selection; |
| |
| import org.eclipse.persistence.internal.sessions.AbstractRecord; |
| import org.eclipse.persistence.queries.ReportQuery; |
| import org.eclipse.persistence.queries.ReportQueryResult; |
| |
| /** |
| * <p> |
| * <b>Purpose</b>: This is a special subclass of the ReportQuery that constructs Tuple results. |
| * <p> |
| * <b>Description</b>: A subclass of ReportQuery this query type combines multiple selections into |
| * |
| * @see jakarta.persistence.criteria CriteriaQuery |
| * |
| * @author gyorke |
| * @since EclipseLink 1.2 |
| */ |
| public class TupleQuery extends ReportQuery { |
| |
| protected List<? super Selection<?>> selections; |
| public TupleQuery(List<? super Selection<?>> selections){ |
| super(); |
| this.selections = selections; |
| } |
| |
| /** |
| * INTERNAL: |
| * Construct a result from a row. Either return a ReportQueryResult or just the attribute. |
| */ |
| @Override |
| public Object buildObject(AbstractRecord row, Vector toManyJoinData) { |
| return new TupleImpl(this.selections, new ReportQueryResult(this, row, toManyJoinData)); |
| } |
| } |