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<HTML><HEAD><META http-equiv="Content-Type" content="text/html; charset=UTF-8"><TITLE>Perst.FieldIndex</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.FieldIndex Interface</DIV><DIV CLASS="Description"> Interface of indexed field.
Index is used to provide fast access to the object by the value of indexed field.
Objects in the index are stored ordered by the value of indexed field.
It is possible to select object using exact value of the key or
select set of objects which key belongs to the specified interval
(each boundary can be specified or unspecified and can be inclusive or exclusive)
Key should be of scalar, String, DateTime or peristent object type.
<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>Members</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="CWP71.HTM" TARGET="CNTFRAME">Contains</A></TD><TD CLASS="TableLightDesc">
Check if index contains specified object
<P></TD><TD width=20> </TD></TR><TR height=20><TD width=20> </TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"><A HREF="CWP72.HTM" TARGET="CNTFRAME">Put</A></TD><TD CLASS="TableLightDesc"> Put new object in the index.
<P></TD><TD width=20> </TD></TR><TR height=20><TD width=20> </TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"><A HREF="CWP73.HTM" TARGET="CNTFRAME">Set</A></TD><TD CLASS="TableLightDesc">
Associate new object with the key specified by object field value.
If there is already object with such key in the index,
then it will be removed from the index and new value associated with this key.
<P></TD><TD width=20> </TD></TR><TR height=20><TD width=20> </TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"><A HREF="CWP74.HTM" TARGET="CNTFRAME">Append</A></TD><TD CLASS="TableLightDesc">
Assign to the integer indexed field unique autoicremented value and
insert object in the index.
<P></TD><TD width=20> </TD></TR><TR height=20><TD width=20> </TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"><A HREF="CWP75.HTM" TARGET="CNTFRAME">Remove</A></TD><TD CLASS="TableLightDesc"> Remove object from the index
<P></TD><TD width=20> </TD></TR><TR height=20><TD width=20> </TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"><A HREF="CWP76.HTM" TARGET="CNTFRAME">Remove</A></TD><TD CLASS="TableLightDesc"> Remove object with specified key from the unique index.
<P></TD><TD width=20> </TD></TR><TR height=20><TD width=20> </TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"><A HREF="CWP78.HTM" TARGET="CNTFRAME">Remove</A></TD><TD CLASS="TableLightDesc"> Remove object with specified key from the unique index.
<P></TD><TD width=20> </TD></TR><TR height=20><TD width=20> </TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"><A HREF="CWP79.HTM" TARGET="CNTFRAME">IndexedClass</A></TD><TD CLASS="TableLightDesc">
Get class obejct objects which can be inserted in this index
<P></TD><TD width=20> </TD></TR><TR height=20><TD width=20> </TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"><A HREF="CWP81.HTM" TARGET="CNTFRAME">KeyField</A></TD><TD CLASS="TableLightDesc">
Get key field
<P></TD><TD width=20> </TD></TR><TR height=20><TD width=20> </TD><TD CLASS="TableLightDesc"> </TD><TD CLASS="TableLightDesc"><A HREF="CWP83.HTM" TARGET="CNTFRAME">Select</A></TD><TD CLASS="TableLightDesc"> </TD><TD width=20> </TD></TR></TABLE></BODY></HTML>?? 快捷鍵說明
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