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DebugListener.hpp

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00001 /*
00002  * Copyright (c) 2001-2008
00003  *     DecisionSoft Limited. All rights reserved.
00004  * Copyright (c) 2004-2008
00005  *     Oracle. All rights reserved.
00006  *
00007  * Licensed under the Apache License, Version 2.0 (the "License");
00008  * you may not use this file except in compliance with the License.
00009  * You may obtain a copy of the License at
00010  *
00011  *     http://www.apache.org/licenses/LICENSE-2.0
00012  *
00013  * Unless required by applicable law or agreed to in writing, software
00014  * distributed under the License is distributed on an "AS IS" BASIS,
00015  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00016  * See the License for the specific language governing permissions and
00017  * limitations under the License.
00018  *
00019  * $Id: MessageListener.hpp 475 2008-01-08 18:47:44Z jpcs $
00020  */
00021 
00022 #ifndef _DEBUGLISTENER_HPP
00023 #define _DEBUGLISTENER_HPP
00024 
00025 #include <xqilla/framework/XQillaExport.hpp>
00026 #include <xqilla/exceptions/XQException.hpp>
00027 #include <xercesc/util/XercesDefs.hpp>
00028 
00029 class StackFrame;
00030 class DynamicContext;
00031 class XQException;
00032 
00036 class XQILLA_API DebugListener {
00037 public:
00038   virtual ~DebugListener() {}
00039 
00040   virtual void start(const StackFrame *stack, const DynamicContext *context) {}
00041   virtual void end(const StackFrame *stack, const DynamicContext *context) {}
00042   virtual void enter(const StackFrame *stack, const DynamicContext *context) {}
00043   virtual void exit(const StackFrame *stack, const DynamicContext *context) {}
00044   virtual void error(const XQException &error, const StackFrame *stack, const DynamicContext *context) { throw error; }
00045 
00046   virtual bool doLazyEvaluation() const { return true; }
00047   virtual bool doFocusOptimizations() const { return true; }
00048 };
00049 
00050 #endif