/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you 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.
 */

package org.apache.uima.caseditor.editor.util;

/**
 * This class is able to transfer a {@link org.apache.uima.cas.FeatureStructure} objects.
 */
public class FeatureStructureTransfer extends ObjectTransfer {

  /** The s feature structure transfer. */
  private static FeatureStructureTransfer sFeatureStructureTransfer;

  /**
   * Initializes a new instance.
   *
   * Note: Use {@link #getInstance() } to get a instance of the FeatureStructureTransfer, singleton
   * pattern.
   */
  private FeatureStructureTransfer() {
    super("FeatureStructureTransfer");
  }

  /**
   * Returns the singleton instance of the FeatureStructureTransfer.
   *
   * @return the only FeatureStructureTransfer object
   */
  public static FeatureStructureTransfer getInstance() {
    if (sFeatureStructureTransfer == null) {
      sFeatureStructureTransfer = new FeatureStructureTransfer();
    }

    return sFeatureStructureTransfer;
  }
}