DataModelBean.java

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package standard;


import javax.faces.component.UISelectOne;
import javax.faces.model.DataModel;
import javax.faces.model.ListDataModel;
import javax.faces.model.SelectItem;

import java.util.ArrayList;
import java.util.List;


/** <p>Backing file class for <code>DataModel.jsp</code>.</p> */

public class DataModelBean {

    // ------------------------------------------------------------ Constructors


    /**
     * <p>Initialize the select component's value so that the first customer
     * is marked as selected the very first time we execute.</p>
     */
    public DataModelBean() {

        // System.err.println("DataModelBean:  precreating select component");
        accountId = new UISelectOne();
        accountId.setId("accountId");
        accountId.setValue("0");

    }

    // -------------------------------------------------------- Bound Components


    /** <p>The <code>accountId</code> field for the current row.</p> */
    private UISelectOne accountId = null;


    public UISelectOne getAccountId() {
        // System.err.println("getAccountId(): returning " + accountId);
        return accountId;
    }


    public void setAccountId(UISelectOne accountId) {
        // System.err.println("setAccountId(): setting " + accountId);
        this.accountId = accountId;
    }

    // -------------------------------------------------------------- Properties


    private List accountIds = null;


    /**
     * <p>Return an array of <code>SelectItem</code>s representing the
     * account identifiers of all our customers.</p>
     */
    public List getAccountIds() {
        if (accountIds == null) {
            // System.err.println("getAccountIds(): creating list");
            getCustomers();
            accountIds = new ArrayList();
            int n = list.size();
            for (int i = 0; i < n; i++) {
                accountIds.add(new SelectItem
                      ("" + i,
                       ((CustomerBean) list.get(i)).getAccountId(),
                       null));
            }
        }
        // System.err.println("getAccountIds(): returning list");
        return (accountIds);
    }


    private DataModel customers = null;
    private List list = null;


    /** <p>Return a <code>DataModel</code> containing our customer list.</p> */
    public DataModel getCustomers() {
        if (list == null) {
            // System.err.println("getCustomers(): creating list");
            list = new ArrayList();
            list.add(new CustomerBean
                  ("123456", "Alpha Beta Company", "ABC", 1234.56));
            list.add(new CustomerBean
                  ("445566", "General Services, Ltd.", "GS", 33.33));
            list.add(new CustomerBean
                  ("654321", "Summa Cum Laude, Inc.", "SCL", 76543.21));
            list.add(new CustomerBean
                  ("333333", "Yabba Dabba Doo", "YDD", 333.33));
            for (int i = 10; i < 20; i++) {
                list.add(new CustomerBean("8888" + i,
                                          "Customer " + i,
                                          "CU" + i,
                                          ((double) i) * 10.0));
            }
        }
        if (customers == null) {
            // System.err.println("getCustomers(): creating DataModel");
            customers = new ListDataModel(list);
        }
        // System.err.println("getCustomers(): returning DataModel");
        return (customers);
    }

    // --------------------------------------------------------- Action Handlers


    /** <p>Select the customer whose account id was specified.</p> */
    public String select() {

        String value = (String) getAccountId().getValue();
        // System.err.println("select(" + value + ")");
        int rowIndex = Integer.parseInt(value);
        // System.err.println("setting rowIndex to " + rowIndex);
        getCustomers().setRowIndex(rowIndex);
        return (null); // Stay on the same page

    }

    // --------------------------------------------------------- Private Methods


}