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24 * $XConsortium: handler.h /main/4 1996/07/18 14:41:47 drk $
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54 #include "dstr/memory_pool.h"
55 #include "storage/page_storage.h"
56 #include "object/root.h"
57 #include "mgrs/template_mgr.h"
59 class handler : public Destructable
64 handler(const oid_t& id, abs_storage* store = 0);
65 handler(c_code_t class_code, abs_storage* store);
66 handler(rootPtr ptr, abs_storage* store);
70 // a light-weight way to resue handler resouce
71 void set(rootPtr ptr, abs_storage* store);
74 virtual void commit();
75 virtual void destroy();
77 void* operator new( size_t );
78 void operator delete( void* );
84 oid_t& its_oid() { return obj_id; } ;
86 const oid_t& its_oid() const { return obj_id; } ;
89 abs_storage* its_store() const { return store; } ;
92 //static memory_pool handler_space_pool;
101 #define HANDLER_SIGNATURES(class_name) \
102 class class_name ## _handler : public handler \
106 class_name ## _handler(const oid_t&, storagePtr = 0); \
107 virtual ~class_name ## _handler(); \
109 class_name * operator ->(); \
112 typedef class_name ## _handler* class_name ## _handlerPtr;
115 #define HANDLER_BODIES(class_name) \
117 class_name ## _handler::class_name ## _handler(const oid_t& v_oid, storagePtr _store): \
118 handler(v_oid, _store) \
122 class_name ## _handler::~class_name ## _handler() \
126 class_name* class_name ## _handler::operator ->() \
128 return (class_name*)handler::operator->(); \