If possible, one SoftReference refer to more than one object?

Hello,
I want design a cache to keep huge number objects.
If create a new SoftReference intance for each object,
will take a lot of space and time.
So, one SoftReference refer to more than one object, if possible?

or arrange your objects into buckets somehow and have
soft references to the bucketsEn, It's a good idea. but I think it doesn't work.
My problem is:
There are many caches(cache1, cache2.......), they may cache a lot of same object instance.
then, I want to keep a object pool, and try to get the equal object from pool before put a object into a cache, if there is an equal object, put the equal object into cache, if there is no equal object, put the target object into pool and cache. the object pool may very huge because there is lot of objects. So it's necessary to release the object in the pool if no cache referes to the object(the caches contain the object may removed). Then SoftReference come into my mind. I try to create a SoftReference for each object in the pool, but soonly, I find there are two problems:
1, A lot SoftReference instances take much memory.
2, Need some time to new and reclaim the SoftReference intances.
I think SoftReference may work fine to cache the object frequently used,
but the object number can't be too large.
Now, I don't use object pool. replace starting a thread to scan those cache s and combine the same objects intervally. It can scan about 2000,000 objects one second in my pc. It's ok for my project. But I am looking for some better way still.

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HI
In 2007 i always got the same problem.
Solution:
1st create all tables
then
2nd create all fields
and do not use any querys to exists the table or field
>If Not UserFieldExists(tablename, fieldName) Then
use lretcode when you add the field / Table, even it is -2035 it is already exists, do not care.
'... your original code
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                Select Case v_RetVal
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                        com.GetLastError(v_ErrCode, v_ErrMsg)
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J.
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* lcl_event_handler
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SET HANDLER g_handler->handle_user_command FOR class_object.
SET HANDLER g_handler->handle_data_changed FOR class_object.
SET HANDLER g_handler->handle_data_changed_finished FOR class_object.
ENDFORM.                    "instantiate_grid
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IF grid_container IS INITIAL.
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        MOVE 'DESELECT ALL' TO ls_toolbar-quickinfo.
        MOVE 'DESELECT ALL' TO ls_toolbar-text.
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     move 'EXCEL' to ls_toolbar-function.
     move space to ls_toolbar-disabled.
     move icon_xxl to ls_toolbar-icon.
     move 'Excel' to ls_toolbar-quickinfo.
     move 'EXCEL' to ls_toolbar-text.
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ENDMETHOD.                    "handle_toolbar
METHOD handle_user_command.
* Entered when a user presses a Grid toolbar
* standard toolbar functions processed
* normally
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      WHEN 'SELE'.
        PERFORM select_all_rows.
      WHEN 'DSEL'.
        PERFORM deselect_all_rows.
      WHEN 'EXCEL'.
          call method me->download_to_excel.
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    ENDCASE.
ENDMETHOD.                    "handle_user_command
METHOD handle_data_changed.
* only entered on data change Not req for ths app.
    PERFORM data_changed USING er_data_changed.
ENDMETHOD.                    "data_changed
METHOD handle_data_changed_finished.
* only entered on data change finished Not req for ths app.
    PERFORM data_changed_finished.
ENDMETHOD.                    "data_changed_finished
* Interactive download to excel
method download_to_excel.
field-symbols:
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   <qs1>   type standard table.
data: G_OUTTAB1 type ref to data,
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        LT_FIELDCAT type KKBLO_T_FIELDCAT,
        LT_FIELDCAT_WA type KKBLO_FIELDCAT,
        L_TABNAME type SLIS_TABNAME.
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when grid1.
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The sender instance is a variable such as g_sender type ref to cl_gui_alv_grid.       "Sender instance.
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If possible, one SoftReference refer to more than one object?

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