cwp4322.htm
来自「Perst开源实时数据库」· HTM 代码 · 共 42 行
HTM
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<HTML><HEAD><META http-equiv="Content-Type" content="text/html; charset=UTF-8"><TITLE>Perst.TransactionMode.Serializable</TITLE><LINK REL=STYLESHEET HREF="../CommentReport.css" TYPE="text/css"></HEAD><BODY topmargin=0 rightmargin=0 leftmargin=0 style="background-image: url(../titletile.jpg); background-repeat:repeat-x; background-position: 0 0;" ><DIV CLASS="PageHeading">Perst.TransactionMode.Serializable Perst.TransactionMode Serializable</DIV><DIV CLASS="Description">
Serializable per-thread transaction. Unlike exclusive mode, threads can concurrently access database,
but effect will be the same as them work exclusively.
To provide such behavior, programmer should lock all access objects (or use hierarchical locking).
When object is updated, exclusive lock should be set, otherwise shared lock is enough.
Lock should be preserved until the end of transaction.
<P></DIV><IMG src="../GradLeft.jpg" width=7 height=378 alt="" border="0" style="position:absolute; left:10; top:18;z-Index:2"><IMG src="../GradTop.jpg" width=352 height=7 alt="" border="0" align="top" style="position:absolute; left:10; top:18; z-index:1"><DIV CLASS="Remarks"><SPAN CLASS="RemarkHdrX">Access: </SPAN>Public</DIV><TABLE CLASS="InfoTable" cellpadding=0 cellspacing=0><TR height=20><TD width=20> </TD><TD valign=top align=left width=9 bgcolor="#cccc66"><IMG SRC="../graycorner.jpg" align=top></TD><TD CLASS="TableLightLabel" WIDTH=206>Type</TD><TD CLASS="TableLightLabel" >Description</TD><TD width=20> </TD></TR><TR height=20><TD width=20> </TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"><A HREF="CWP2371.HTM">TransactionMode</A></TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"> </TD><TD width=20> </TD></TR></TABLE></BODY></HTML>⌨️ 快捷键说明
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