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Repackaged OData V4 Olingo Library
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/*
 * 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.olingo.server.api.uri.queryoption;

import org.apache.olingo.commons.api.edm.EdmType;
import org.apache.olingo.server.api.uri.UriInfoResource;

/**
 * Represents a single resource path which should be expanded with using the system query option $expand
 * For example: http://.../entitySet?$expand=Products($filter=DiscontinuedDate eq null)
 */
public interface ExpandItem {

  /**
   * @return Information of the option $level when used within $expand
   */
  LevelsExpandOption getLevelsOption();

  /**
   * @return Information of the option $filter when used within $expand
   */
  FilterOption getFilterOption();

  /**
   * @return Information of the option $search when used within $expand
   */
  SearchOption getSearchOption();

  /**
   * @return Information of the option $orderby when used within $expand
   */
  OrderByOption getOrderByOption();

  /**
   * @return Information of the option $skip when used within $expand
   */
  SkipOption getSkipOption();

  /**
   * @return Information of the option $top when used within $expand
   */
  TopOption getTopOption();

  /**
   * @return Information of the option $count when used within $expand
   */
  CountOption getCountOption();

  /**
   * @return Information of the option $select when used within $expand
   */
  SelectOption getSelectOption();

  /**
   * @return Information of the option $expand when used within $expand
   */
  ExpandOption getExpandOption();

  /**
   * @return Information on the option $apply when used within $expand
   */
  ApplyOption getApplyOption();

  /**
   * @return A {@link UriInfoResource} object containing the resource path segments to be expanded
   */
  UriInfoResource getResourcePath();

  /**
   * @return A star is used within $expand.
   * For example: ...?$expand=*
   */
  boolean isStar();

  /**
   * @return A $ref is used within $expand.
   * For example: ...?$expand=navigation/$ref
   */
  boolean isRef();

  /**
   * @return A $count is used within $expand.
   * For example: ...?$expand=navigation/$count
   */  
  boolean hasCountPath();
  
  /**
   * @return Before resource path segments which should be expanded a type filter may be used.
   * For example: ...persons?$expand=namespace.managertype/team
   */
  EdmType getStartTypeFilter();

}