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/* 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.
 */

package org.activiti.engine.identity;

import org.activiti.engine.query.Query;

/**
 * Allows to programmatically query for {@link Group}s.
 * 
 * @author Joram Barrez
 */
public interface GroupQuery extends Query {

  /** Only select {@link Group}s with the given id. */
  GroupQuery groupId(String groupId);

  /** Only select {@link Group}s with the given name. */
  GroupQuery groupName(String groupName);

  /**
   * Only select {@link Group}s where the name matches the given parameter. The syntax to use is that of SQL, eg. %activiti%.
   */
  GroupQuery groupNameLike(String groupNameLike);

  /** Only select {@link Group}s which have the given type. */
  GroupQuery groupType(String groupType);

  /** Only selects {@link Group}s where the given user is a member of. */
  GroupQuery groupMember(String groupMemberUserId);

  /**
   * Only select {@link Group}S that are potential starter for the given process definition.
   */
  GroupQuery potentialStarter(String procDefId);

  // sorting ////////////////////////////////////////////////////////

  /**
   * Order by group id (needs to be followed by {@link #asc()} or {@link #desc()}).
   */
  GroupQuery orderByGroupId();

  /**
   * Order by group name (needs to be followed by {@link #asc()} or {@link #desc()}).
   */
  GroupQuery orderByGroupName();

  /**
   * Order by group type (needs to be followed by {@link #asc()} or {@link #desc()}).
   */
  GroupQuery orderByGroupType();

}