org.eclipse.persistence.internal.jpa.querydef.TupleQuery Maven / Gradle / Ivy
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/*
* Copyright (c) 2018 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 javax.persistence.criteria.Selection;
import org.eclipse.persistence.internal.sessions.AbstractRecord;
import org.eclipse.persistence.queries.ReportQuery;
import org.eclipse.persistence.queries.ReportQueryResult;
/**
*
* Purpose: This is a special subclass of the ReportQuery that constructs Tuple results.
*
* Description: A subclass of ReportQuery this query type combines multiple selections into
*
*
* @see javax.persistence.criteria CriteriaQuery
*
* @author gyorke
* @since EclipseLink 1.2
*/
public class TupleQuery extends ReportQuery {
protected List> selections;
public TupleQuery(List> 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));
}
}