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/***********************************************************************************************************************
 *
 * blueBill Mobile - Android - open source birding
 * Copyright (C) 2009-2011 by Tidalwave s.a.s. (http://www.tidalwave.it)
 *
 ***********************************************************************************************************************
 *
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with
 * the License. You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on
 * an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations under the License.
 *
 ***********************************************************************************************************************
 *
 * WWW: http://bluebill.tidalwave.it/mobile
 * SCM: https://java.net/hg/bluebill-mobile~android-src
 *
 **********************************************************************************************************************/
package it.tidalwave.observation.bluebill;

import javax.annotation.CheckForNull;
import javax.annotation.Nonnull;
import it.tidalwave.netbeans.util.Locator;
import it.tidalwave.observation.Observation;
import it.tidalwave.observation.Observation.Builder;
import it.tidalwave.observation.ObservationManager;
import it.tidalwave.observation.ObservationSet;

/***********************************************************************************************************************
 *
 * @author  Fabrizio Giudici
 * @version $Id$
 *
 **********************************************************************************************************************/
public class ObservationClipboard
  {
    @CheckForNull
    /* package */ Observation.Builder builder;

    /*******************************************************************************************************************
     *
     *
     ******************************************************************************************************************/
    @Nonnull
    public synchronized Observation.Builder getBuilder()
      {
        if (builder == null)
          {
            final ObservationSet observationSet = Locator.find(ObservationManager.class).findOrCreateObservationSetById(null);
            builder = observationSet.createObservation();
          }

        return builder;
      }

    /*******************************************************************************************************************
     *
     *
     ******************************************************************************************************************/
    public void clear()
      {
        builder = null;
      }

    /*******************************************************************************************************************
     *
     *
     ******************************************************************************************************************/
    public void setBuilder (final @Nonnull Builder builder)
      {
        this.builder = builder;
      }
  }