content: /*
   * Copyright 2010-2025 Hyland Software, Inc. and its affiliates.
   *
   * 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.task;
  
  import java.util.List;
  import org.activiti.engine.api.internal.Internal;
  
  /**
   * Allows programmatic querying of {@link Task}s;
   *
   */
  @Internal
  public interface TaskQuery extends TaskInfoQuery<TaskQuery, Task> {
      /** Only select tasks which don't have an assignee. */
      TaskQuery taskUnassigned();
  
      /** Only select tasks with the given {@link DelegationState}. */
      TaskQuery taskDelegationState(DelegationState delegationState);
  
      /**
       * Select tasks that has been claimed or assigned to user or waiting to claim by user (candidate user or groups). You can invoke {@link #taskCandidateGroupIn(List)} to include tasks that can be
       * claimed by a user in the given groups while set property <strong>dbIdentityUsed</strong> to <strong>false</strong> in process engine configuration or using custom session factory of
       * GroupIdentityManager.
       */
      TaskQuery taskCandidateOrAssigned(String userIdForCandidateAndAssignee);
  
      /**
       * Select tasks that has been claimed or assigned to user or waiting to claim by user (candidate user or groups).
       */
      TaskQuery taskCandidateOrAssigned(String userIdForCandidateAndAssignee, List<String> usersGroups);
  
      /** Only select tasks that have no parent (i.e. do not select subtasks). */
      TaskQuery excludeSubtasks();
  
      /**
       * Only selects tasks which are suspended, because its process instance was suspended.
       */
      TaskQuery suspended();
  
      /**
       * Only selects tasks which are active (ie. not suspended)
       */
      TaskQuery active();
  }
  