Author: asmuts
Date: Sat Aug 26 09:13:13 2006
New Revision: 437176
URL: http://svn.apache.org/viewvc?rev=437176&view=rev
Log:
added faq entry on multiple removes
Modified:
jakarta/jcs/trunk/xdocs/faq.fml
Modified: jakarta/jcs/trunk/xdocs/faq.fml
URL:
http://svn.apache.org/viewvc/jakarta/jcs/trunk/xdocs/faq.fml?rev=437176&r1=437175&r2=437176&view=diff
==============================================================================
--- jakarta/jcs/trunk/xdocs/faq.fml (original)
+++ jakarta/jcs/trunk/xdocs/faq.fml Sat Aug 26 09:13:13 2006
@@ -149,7 +149,7 @@
</a>
or get the source code from subversion
with svn co
http://svn.apache.org/repos/asf/jakarta/jcs/trunk.
- The tagged releases are available with
svn co. ex.
+ The tagged releases are available with
svn co. ex.
http://svn.apache.org/repos/asf/jakarta/jcs/tags/jcs_1_2_7_0
</p>
</answer>
@@ -203,6 +203,38 @@
for more information on how to handle
element
events.
</p>
+ </answer>
+ </faq>
+
+ <faq id="hierarchical-removal">
+ <question>
+ Can I remove all items begging with part of a
key?
+ </question>
+ <answer>
+ <p>
+ Yes, but it is somewhat expensive,
since some of the
+ auxiliaries will have to iterate over
their keysets.
+ Although all the auxiliaries honor
this, it is not
+ part of the auxiliary API. There is no
method along
+ the lins of "removeStartingWith", but
all the remove
+ methods can do it.
+ </p>
+ <p>
+ By default, the hierarchical key
delimiter used in
+ JCS is a colon. You cannot add a String
key that
+ ends with a colon. If you call remove
with a String
+ key that ends in a colon, everything
that has a key
+ that starts with the argument will be
removed.
+ </p>
+ <p>If your keys are in this format</p>
+ <p>TYPE:SOURCE:OBJECT</p>
+ <p>
+ And you put n objects int he cache with
keys like
+ this
+ </p>
+ <p>"ABC:123:0" to "ABC:123:n"</p>
+ <p>then you could remove all the obejcts by
calling</p>
+ <p>jcs.remove( "ABC:123:" );</p>
</answer>
</faq>
</part>
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