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From Christopher Oliver <res1c...@verizon.net>
Subject Re: Hibernat2 block
Date Sat, 19 Apr 2003 20:48:01 GMT
Sorry, I don't understand your answer. Can you explain what you mean?

Giacomo Pati wrote:

>On Sat, 19 Apr 2003, Christopher Oliver wrote:
>
>  
>
>>Why not use a flowscript to call Hibernate? Then you wouldn't need a
>>special logicsheet. Jpath would be enough.
>>    
>>
>
>Siply because I don't want to use a flow script any times I'd like
>to use Hibernate.
>
>Giacomo
>
>  
>
>>Regards,
>>
>>Chris
>>
>>Giacomo Pati wrote:
>>
>>    
>>
>>>Hi team
>>>
>>>We've recently started a project that uses the Hibernat2 package from
>>>http://hibernate.sf.net as a object to relational mapping tool. We considered
>>>other packages and end up with Hibernate2 because of:
>>>
>>> - has good performance
>>> - has quite a good community
>>> - has many project using it (http://hibernate.bluemars.net/27.html)
>>> - has XDoclet support
>>>   (http://xdoclet.sourceforge.net/tags/hibernate-tags.html)
>>>
>>>and some other aspects.
>>>
>>>We have developped a logicsheet that is a mixture out of the esql and jpath
>>>logicsheets that let you develop easily XSP pages with hibernated content.
>>>
>>>Consider the following object model:
>>>
>>> Project
>>>  !
>>>  +--<>* Task                Staff
>>>          !                   !
>>>          +--<>* Mandate *<>--+
>>>                  !
>>>                  +--<>* Expenditure <!--+
>>>                                         !
>>>                               +---------+---------+
>>>                               !                   !
>>>                             Activity            Expense
>>>
>>>Where
>>> - Project     : Defines a project
>>> - Task        : Defines a task of a project
>>> - Mandate     : Defines a task worked on by a staff
>>> - Expendituere: Defines work activities as either
>>>   - Activity  : Duration activity worked on a mandate
>>>   - Expense   : Costs raised for a mandate
>>>
>>>Now using the logicsheet one can build a XSP page like:
>>>
>>> <xsp:page language="java"
>>>           xmlns:xsp="http://apache.org/xsp"
>>>           xmlns:hbn="http://otego.com/xsp/hibernate/2.0" >
>>>  <document>
>>>   <hbn:execute-query>
>>>   <hbn:query>from project in class Project</hbn:query>
>>>    <hbn:results>
>>>     <project>
>>>      <name><hbn:value-of select="result/name"/></name>
>>>      <hbn:for-each select="result/tasks">
>>>       <task>
>>>        <name><hbn:value-of select="name"/></name>
>>>         <hbn:for-each select="mandates">
>>>          <mandate>
>>>           <staff>
>>>            <name><hbn:value-of select="staff/name"/></name>
>>>           </staff>
>>>           <hbn:for-each select="expenditures">
>>>            <expenditure>
>>>             <date><hbn:value-of select="date"/></date>
>>>             <description><hbn:value-of select="description"/></description>
>>>             <hbn:choose>
>>>              <hbn:when test="type='Activity'">
>>>               <activity>
>>>                <duration><hbn:value-of select="duration"/></duration>
>>>               </activity>
>>>              </hbn:when>
>>>              <hbn:when test="type='Expense'">
>>>               <expense>
>>>                <amount><hbn:value-of select="amount"/></amount>
>>>               </expense>
>>>              </hbn:when>
>>>             </hbn:choose>
>>>            </expenditure>
>>>           </hbn:for-each>
>>>          <sum><hbn:value-of select="sumAmountOfAllExpenditure"/></sum>
>>>          </mandate>
>>>         </hbn:for-each>
>>>         <sum><hbn:value-of select="sumAmountOfAllExpenditure"/></sum>
>>>        </task>
>>>       </hbn:for-each>
>>>      <sum><hbn:value-of select="sumAmountOfAllExpenditure"/></sum>
>>>     </project>
>>>    </hbn:results>
>>>    <hbn:no-results>
>>>     <project/>
>>>    </hbn:no-results>
>>>    <hbn:error-results>
>>>     <trace>
>>>      <hbn:get-stacktrace/>
>>>     </trace>
>>>    </hbn:error-results>
>>>   </hbn:execute-query>
>>>  </document>
>>> </xsp:page>
>>>
>>>Anybody intressted in this? Can I donnate and add a block for it?
>>>
>>>Giacomo
>>>
>>>
>>>
>>>      
>>>
>>
>>
>>
>>    
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>
>  
>



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