foundation/org.eclipse.persistence.core/src/main/java/org/eclipse/persistence/internal/history/DecoratedDatabaseTable.java

/*
 * Copyright (c) 1998, 2020 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.internal.history;

import org.eclipse.persistence.history.*;
import org.eclipse.persistence.internal.helper.*;

/**
 * INTERNAL:
 * A decorated database table is one that has an as of clause, for Oracle 9R2
 * query flashback.
 * Specifying a table to be read as of a past time is termed 'table decoration'.
 * @since OracleAS TopLink 10<i>g</i> (10.1.3)
 * @author Stephen McRitchie
 */
public class DecoratedDatabaseTable extends DatabaseTable {
    private AsOfClause asOfClause;

    protected DecoratedDatabaseTable() {

    }

    public DecoratedDatabaseTable(String name, AsOfClause asOfClause) {
        super(name);
        this.asOfClause = asOfClause;
    }

    /**
     * INTERNAL:
     * This check is optimized for the case where no AsOfClause is specified.
     */
    @Override
    public boolean isDecorated() {
        return ((getAsOfClause() != AsOfClause.NO_CLAUSE) && (getAsOfClause() != null) && (getAsOfClause().getValue() != null));
    }

    public AsOfClause getAsOfClause() {
        return asOfClause;
    }

    public void setAsOfClause(AsOfClause asOfClause) {
        this.asOfClause = asOfClause;
    }
}