[displaytag-user] Problem with making a dynamic no. of tables with header

Bard A. Evjen Thu, 10 Jul 2003 03:36:05 -0700

Hi all,

I have a problem with displaying a dynamic number of tables based on the number types (from an int variable called loadProfile) in the vector that holds the data.

The vector that holds the data (InitialMarginHolder.java):

package com.om.condico.margin.client.web.bo.initial;

import com.om.condico.util.interfaces.Searchable;
import com.om.condico.util.GenericFactory;
import com.om.condico.util.exception.CondicoException;
import com.om.condico.margin.client.web.adaptor.initial.IControlProvider;

import java.util.Vector;

public class InitialMarginHolder {
   Vector initialmargins;
   Searchable searchCriteria = null;
   IControlProvider provider = getProvider();

   /**
    * Constructor for InitialMarginHolder
    */
   public InitialMarginHolder() {
       initialmargins = new Vector();
   }

/** * Returns all initial margins * @return initialmargins * @throws CondicoException */ public Vector getInitialMargins() throws CondicoException { if (provider == null) { throw new CondicoException("Unable to create a class instance that implements interface " + IControlProvider.class.getName()); }

       initialmargins = provider.fetchInitialMargins(searchCriteria);
       return initialmargins;
   }

   /**
    * Set the initial margins
    * @param initialmargins the vector that holds the initial margins
    */
   public void setInitialMargins(Vector initialmargins) {
       this.initialmargins = initialmargins;
   }

   public Searchable getSearchCriteria() {
       return searchCriteria;
   }

   public void setSearchCriteria(Searchable searchCriteria) {
       this.searchCriteria = searchCriteria;
   }

/** * Get the data object from the properties file * @return the class name of the data object */ private IControlProvider getProvider() { GenericFactory factory = new GenericFactory("condico.web.properties"); return (IControlProvider) factory.create(IControlProvider.class); } } ---------

The LocalInitialMargin is the object with the data within it. It is just a constructor and setters plus getters on each field/column value (LocalInitialMargin.java):

public LocalInitialMargin(String companyName, String accountName, java.util.Date reportDate, int eod, String deliveryPeriod, int loadProfile, String loadProfileName, String hours, long boughtVolume, long soldVolume, long netPosition, Quantity settlementPrice, String valuationParameter, Quantity marginRequirement)

----------------

The mockup-data I use (before the service-bean is done) consist of (ControlProviderMockup.java):

package com.om.condico.margin.client.web.adaptor.initial;

import com.om.condico.util.interfaces.Searchable;
import com.om.condico.util.quantity.Quantity;
import com.om.condico.margin.client.web.bo.MarginInput;
import com.om.condico.margin.client.web.bo.initial.LocalInitialMargin;
import com.om.condico.margin.client.web.adaptor.initial.IControlProvider;

import java.util.Vector;

/**
* Mockup implementation for the IControlProvider interface.
* Only for test purposes.
*
* @author  bardae
*/

public class ControlProviderMockup implements IControlProvider {
   /** Creates a new instance of ControlProviderMockup */
   public ControlProviderMockup() {
   }

/** Gets initial margins matching a specific set of search criteria * * @param companyName the name of the company * date getting initial margin done on this date * eod getting initial margins done either end-of-day or intra-day * * @return an vector that holds objects of type LocalTrade; trades that * matches the search criteria. If the object has no Trades, no data * matched the search criteria */ public Vector fetchInitialMargins(Searchable searchCriteria) {

MarginInput mi = (MarginInput) searchCriteria;

       Vector initialmargins = new Vector();
       Quantity quant1 = new Quantity("16.50");
       Quantity quant2 = new Quantity("623.12");

for (int i = 0; i < 20; i++) { LocalInitialMargin myInitialMargin = new LocalInitialMargin( mi.getCompanyName(), mi.getAccountName(), mi.getReportDate(), mi.getEod(), "June - " + i, 1, "POWER1 - Base Load", "24", 12, 10, 7, quant1, "25%", quant2); initialmargins.add(myInitialMargin); LocalInitialMargin myInitialMargin2 = new LocalInitialMargin( mi.getCompanyName(), mi.getAccountName(), mi.getReportDate(), mi.getEod(), "June - " + i, 2, "POWER2 - Peak Load", "12", 12, 10, 7, quant1, "25%", quant2); initialmargins.add(myInitialMargin2); } return initialmargins; } } -----------------

I initialize the data using an action-file (InitializeInitialMarginAction.java):

package com.om.condico.margin.client.web.servlet.initial;

import org.apache.struts.action.Action;
import org.apache.struts.action.ActionForward;
import org.apache.struts.action.ActionMapping;
import org.apache.struts.action.ActionForm;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import com.om.condico.margin.client.web.bo.initial.InitialMarginHolder;

public class InitializeInitialMarginAction extends Action {
   /**
    * Contructor for InitializeInitialMarginAction
    */
   public InitializeInitialMarginAction() {
   }

public InitialMarginHolder imh = new InitialMarginHolder();

   public ActionForward execute(ActionMapping mapping,
                                ActionForm form,
                                HttpServletRequest request,
                                HttpServletResponse response)
           throws Exception {
       request.getSession().putValue("initialmargins", imh);
       // Forward control to the specified success URI
       return (mapping.findForward("InitializeInitialMargin"));
   }
}
---------------

The jsp-file that displays the result from the query should produce a number of tables based on the loadProfile-variable (value 1 and 2 in the mockup data) (result.jsp):

<table border="0" cellpadding="0" cellspacing="0" width="100%"> <tr> <td> <bean:write name="initialmargins" property="accountName"/> <display:table name="initialmargins" property="initialMarginsBase" scope="session" width="100%" pagesize="100" requestURI="result.jsp" decorator="org.apache.taglibs.display.test.ColumnsWrapper"> <display:column title="<%=ldeliveryPeriod%>" property="deliveryPeriod" sort="true" nulls="true" width="10%"/> <display:column title="<%=lhours%>" property="hours" sort="true" nulls="true" width="10%"/> <display:column title="<%=lboughtVol%>" property="boughtVolume" sort="true" nulls="true" nulls="true" width="10%"/> <display:column title="<%=lsoldVol%>" property="soldVolume" sort="true" nulls="true" width="10%"/> <display:column title="<%=lnetPosition%>" property="netPosition" sort="true" nulls="true" width="10%"/> <display:column title="<%=lsettlementPrice%>" property="settlementPrice" sort="true" nulls="true" width="10%"/> <display:column title="<%=lvaluationParameter%>" property="valuationParameter" sort="true" nulls="true" width="10%"/> <display:column title="<%=lmarginRequirement%>" property="marginRequirement" sort="true" nulls="true" width="10%"/>

<display:setProperty name="paging.banner.one_item_found" value="" /> <display:setProperty name="paging.banner.all_items_found" value="" /> <display:setProperty name="paging.banner.some_items_found" value="" /> <display:setProperty name="paging.banner.include_first_last" value="false" /> <display:setProperty name="export.amount" value="page" /> <display:setProperty name="export.excel.include_header" value="true" /> <display:setProperty name="paging.banner.group_size" value="6" /> <display:setProperty name="paging.banner.prev_label" value="<%=lback%>" /> <display:setProperty name="paging.banner.next_label" value="<%=lforward%>" /> <display:setProperty name="sort.behavior" value="page" /> </display:table> </td> <td> <bean:write name="initialmargins" property="accountName"/> <display:table name="initialmargins" property="initialMarginsPeak" scope="session" width="100%" pagesize="100" requestURI="result.jsp" decorator="org.apache.taglibs.display.test.ColumnsWrapper"> <display:column title="<%=lhours%>" property="hours" sort="true" nulls="true" width="10%"/> <display:column title="<%=lboughtVol%>" property="boughtVolume" sort="true" nulls="true" width="10%"/> <display:column title="<%=lsoldVol%>" property="soldVolume" sort="true" nulls="true" width="10%"/> <display:column title="<%=lnetPosition%>" property="netPosition" sort="true" nulls="true" width="10%"/> <display:column title="<%=lsettlementPrice%>" property="settlementPrice" sort="true" nulls="true" width="10%"/> <display:column title="<%=lvaluationParameter%>" property="valuationParameter" sort="true" nulls="true" width="10%"/> <display:column title="<%=lmarginRequirement%>" property="marginRequirement" sort="true" nulls="true" width="10%"/>

<display:setProperty name="paging.banner.one_item_found" value="" /> <display:setProperty name="paging.banner.all_items_found" value="" /> <display:setProperty name="paging.banner.some_items_found" value="" /> <display:setProperty name="paging.banner.include_first_last" value="false" /> <display:setProperty name="export.amount" value="page" /> <display:setProperty name="export.excel.include_header" value="true" /> <display:setProperty name="paging.banner.group_size" value="6" /> <display:setProperty name="paging.banner.prev_label" value="<%=lback%>" /> <display:setProperty name="paging.banner.next_label" value="<%=lforward%>" /> <display:setProperty name="sort.behavior" value="page" /> </display:table> </td> </tr> </table>

-------------

I also use two files (SearchInitialMarginForm.java and SearchInitialMarginAction.java) that has the form and the action from the search).

The problem is:

1. The header on each table should be <bean:write name="initialmargins" property="accountName"/> but I cannot output it (an error occur).

2. I need to output the tables dynamically based on the number of loadProfile there is (in the example it is just two of them (1 and 2)).

I realize this is a fairly complex request, but I would be extremly grateful if anyone could help me solving this.

Thanks a lot,
Bard A.


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[displaytag-user] Problem with making a dynamic no. of tables with header

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