| /********************************************************************** |
| // @@@ START COPYRIGHT @@@ |
| // |
| // 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. |
| // |
| // @@@ END COPYRIGHT @@@ |
| // |
| **********************************************************************/ |
| #ifndef _RU_LOCK_EQUIV_SET_TASK_H_ |
| #define _RU_LOCK_EQUIV_SET_TASK_H_ |
| |
| /* -*-C++-*- |
| ****************************************************************************** |
| * |
| * File: RuLockEquivSetTask.h |
| * Description: Definition of class CRULockEquivSetTask. |
| * |
| * |
| * Created: 12/06/2000 |
| * Language: C++ |
| * |
| * |
| ****************************************************************************** |
| */ |
| |
| #include "refresh.h" |
| |
| #include "RuTask.h" |
| #include "RuTbl.h" |
| #include "RuException.h" |
| |
| //--------------------------------------------------------------// |
| // CRULockEquivSetTask |
| // |
| // The purpose of the Lock Equivalence Set task is to execute |
| // synchronization between involved base tables by locking all the |
| // tables or the tables' logs that are members of this lock |
| // equivalence set. |
| // |
| //--------------------------------------------------------------// |
| |
| class REFRESH_LIB_CLASS CRULockEquivSetTask : public CRUTask { |
| |
| //---------------------------------------// |
| // PUBLIC AREA |
| //---------------------------------------// |
| public: |
| |
| CRULockEquivSetTask(Lng32 id, const CRUTblList &tblList); |
| virtual ~CRULockEquivSetTask(); |
| |
| //-----------------------------------// |
| // Accessors |
| //-----------------------------------// |
| public: |
| //-- Implementation of pure virtuals |
| virtual CRUTask::Type GetType() const |
| { |
| return CRUTask::LOCK_EQUIV_SET; |
| } |
| |
| virtual BOOL HasObject(TInt64 uid) const; |
| |
| CRUTblList& GetTableList() |
| { |
| return tblList_; |
| } |
| |
| //-----------------------------------// |
| // Mutators |
| //-----------------------------------// |
| |
| //---------------------------------------// |
| // PRIVATE AND PROTECTED AREA |
| //---------------------------------------// |
| protected: |
| virtual CDSString GetTaskName() const; |
| |
| // If my only successor has failed - I am obsolete |
| virtual void HandleSuccessorFailure(CRUTask &task) {} |
| |
| // Create the concrete task executor |
| virtual CRUTaskExecutor *CreateExecutorInstance(); |
| |
| virtual TInt32 GetComputedCost() const |
| { |
| return 0; |
| } |
| |
| virtual BOOL IsImmediate() const |
| { |
| return TRUE; |
| } |
| |
| private: |
| //-- Prevent copying |
| CRULockEquivSetTask(const CRULockEquivSetTask &other); |
| CRULockEquivSetTask& operator= (const CRULockEquivSetTask &other); |
| |
| private: |
| |
| CRUTblList tblList_; |
| }; |
| |
| #endif |
