/**
* Copyright (C) 2009-2013 FoundationDB, LLC
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package com.foundationdb.server.api.dml;
public final class ConstantColumnSelector implements ColumnSelector {
public static final ColumnSelector ALL_ON = new ConstantColumnSelector(true);
public static final ColumnSelector ALL_OFF = new ConstantColumnSelector(false);
private final boolean value;
private ConstantColumnSelector(boolean value) {
this.value = value;
}
@Override
public boolean includesColumn(int columnPosition) {
return value;
}
}