EmptyBackendCursor.java

/*
 * ToroDB
 * Copyright © 2014 8Kdata Technology (www.8kdata.com)
 *
 * 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.torodb.core.backend;

import com.torodb.core.cursors.Cursor;
import com.torodb.core.cursors.EmptyCursor;
import com.torodb.core.d2r.DocPartResult;

/**
 *
 */
public class EmptyBackendCursor implements BackendCursor {

  private final Cursor<?> emptyCursor = new EmptyCursor<>();

  @Override
  @SuppressWarnings("unchecked")
  public Cursor<DocPartResult> asDocPartResultCursor() {
    return (Cursor<DocPartResult>) emptyCursor;
  }

  @Override
  @SuppressWarnings("unchecked")
  public Cursor<Integer> asDidCursor() {
    return (Cursor<Integer>) emptyCursor;
  }

}