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From "agharta (JIRA)" <ibatis-...@incubator.apache.org>
Subject [jira] Created: (IBATIS-182) Add global cache declaration
Date Fri, 12 Aug 2005 21:13:54 GMT
Add global cache declaration

         Key: IBATIS-182
         URL: http://issues.apache.org/jira/browse/IBATIS-182
     Project: iBatis for Java
        Type: New Feature
  Components: SQL Maps  
    Versions: 2.2.0, 2.2.5    
 Environment: All
    Reporter: agharta

Can i suggest a new feature??
I suggest a global cache declaration, available for many sqlmap files.

Now,  into a sqlMap file:
<cacheModel id="cache" readOnly="true" serialize="true" type="LRU">
        <flushOnExecute statement="Author.insertAuthor"/>
        <flushOnExecute statement="Author.updateAuthorById"/>
        <flushOnExecute statement="Author.deleteAuthorById"/>
        <property name="size" value="100000"/>
        <flushInterval hours="24"/>
Ok? This cache is valid only into this sqlmap file.

So, following Spring's idea, if i have many sqlmap files and i want to extend the same cache

//into sqlMapConfig file or another dedicated file
<cacheMap namespace="GlobalCache"> //new definition
    <cacheModel id="cache" readOnly="true" serialize="true" type="LRU">
        <flushOnExecute statement="insert*"/>
        <flushOnExecute statement="update*"/>
        <flushOnExecute statement="delete*"/>
        <property name="size" value="100000"/>
        <flushInterval hours="24"/>

So, the sqlMap call the global cache model with the  useStatementNamespaces="true" setted
into sqlmapconfig file (therefore many global cache are availables)

<statement id="getAuthorById" parameterClass="java.lang.Integer"
        resultMap="get-author-result" cacheModel="GlobalCache.cache" >
        <include refid="select"/>
        WHERE ID = #value#

With this feature we'll save a lot of redundant code.

I suggest a cache definition also into insert/update/delete statements, to allow the internal
or "global" cache selection.

Is it possible??

Thanks a lot for reply!


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