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git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2005 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261
302 lines
9.7 KiB
Java
302 lines
9.7 KiB
Java
/*
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* Copyright (C) 2005 Alfresco, Inc.
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*
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* Licensed under the Mozilla Public License version 1.1
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* with a permitted attribution clause. You may obtain a
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* copy of the License at
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*
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* http://www.alfresco.org/legal/license.txt
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*
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* Unless required by applicable law or agreed to in writing,
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* software distributed under the License is distributed on an
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* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
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* either express or implied. See the License for the specific
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* language governing permissions and limitations under the
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* License.
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*/
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package jsftest;
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import java.util.ArrayList;
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import java.util.Calendar;
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import java.util.GregorianCalendar;
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import java.util.Iterator;
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import java.util.List;
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import javax.faces.application.FacesMessage;
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import javax.faces.component.UIComponent;
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import javax.faces.component.UIParameter;
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import javax.faces.component.html.HtmlOutputText;
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import javax.faces.context.FacesContext;
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import javax.faces.event.ActionEvent;
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import javax.faces.event.ValueChangeEvent;
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import javax.faces.model.DataModel;
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import javax.faces.model.ListDataModel;
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import javax.faces.validator.ValidatorException;
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import org.apache.log4j.Logger;
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/**
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* JSF Managed Bean. Provides the backing for the userlist.jsp view. The view uses
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* the datatable control to bind to the List of User bean objects. Implements the
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* action events called by the view when the user clicks the Edit link or Add button.
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*
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* @author kevinr
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*/
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public class UserListBean
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{
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// ===========================================================================
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// Construction
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public UserListBean()
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{
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Calendar date = new GregorianCalendar(2002, 5, 10);
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m_users.add(new User("admin", "admin", "Administrator", new String[] {"admin","superuser"}, date.getTime()));
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date = new GregorianCalendar(2001, 7, 10);
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m_users.add(new User("kevinr", "kevinr", "Kevin Roast", new String[] {"admin","superuser","dev"}, date.getTime()));
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date = new GregorianCalendar(2003, 8, 15);
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m_users.add(new User("gavinc", "gavinc", "Gavin Cornwell", new String[] {"superuser","dev"}, date.getTime()));
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date = new GregorianCalendar(2003, 1, 1);
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m_users.add(new User("stever", "stever", "Steve Rigby", new String[] {"superuser","qa"}, date.getTime()));
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}
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// ===========================================================================
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// Bean methods
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public List getUsers()
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{
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return m_users;
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}
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public void setUsers(List<User> users)
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{
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m_users = users;
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}
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/**
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* Get the users list as a wrapped DataModel object
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*
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* @return DataModel for use by the data-table components
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*/
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public DataModel getUsersModel()
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{
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if (m_usersModel == null)
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{
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m_usersModel = new ListDataModel();
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m_usersModel.setWrappedData(m_users);
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}
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return m_usersModel;
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}
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public User getUser()
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{
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return m_currentUser;
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}
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public void setUser(User user)
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{
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m_currentUser = user;
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}
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/**
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* Get the isNewUser
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*
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* @return the isNewUser
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*/
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public boolean getIsNewUser()
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{
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return m_isNewUser;
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}
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/**
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* Set the isNewUser
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*
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* @param isNewUser the isNewUser
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*/
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public void setIsNewUser(boolean isNewUser)
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{
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m_isNewUser = isNewUser;
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}
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/**
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* Get the rolesOutputText
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*
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* @return the rolesOutputText
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*/
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public HtmlOutputText getRolesOutputText()
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{
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return m_rolesOutputText;
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}
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/**
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* Set the rolesOutputText
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*
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* @param rolesOutputText the rolesOutputText component
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*/
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public void setRolesOutputText(HtmlOutputText rolesOutputText)
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{
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m_rolesOutputText = rolesOutputText;
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}
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// ===========================================================================
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// Action event methods
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/**
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* Edit user action event listener
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*
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* Specified directly on the appropriate tag such as commandLink or commandButton
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* e.g. actionListener="#{UserListBean.editUser}"
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*
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* This listener cannot directly affect the navigation of the page - the command
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* tag has an "action" attribute of which the default handler will use the outcome
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* from the faces-config.xml by default or call a specifid controller method
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* returning the String outcome as usual.
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*/
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public void editUser(ActionEvent event)
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{
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s_logger.debug("*****USERLIST: " + ((UIParameter)event.getComponent().findComponent("userId")).getValue().toString());
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// Get the username from the "param" tag component we added as a nested tag
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// to the command tag that fired this event.
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// So we can have a key to work out which item was clicked in the data table
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String usernameId = ((UIParameter)event.getComponent().findComponent("userId")).getValue().toString();
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// It is also possible to get the relevent row from the DataModel we created
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// wrapping our users list. But this is a weak solution as models which then
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// potentially sort or page data may not provide the correct row index.
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// e.g.
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// m_usersModel.getWrappedData().get(m_usersModel.getRowIndex());
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for (Iterator i=m_users.iterator(); i.hasNext(); /**/)
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{
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User user = (User)i.next();
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if (user.getUsername().equals(usernameId))
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{
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// set the user as current so we know which one to edit etc.
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try
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{
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setUser((User)user.clone());
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setIsNewUser(false);
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}
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catch (CloneNotSupportedException e)
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{
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// will not happen - clone is supported for our own types
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}
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}
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}
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}
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/**
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* OK button action handler
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*
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* @return outcome view name
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*/
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public void editUserOK(ActionEvent event)
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{
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s_logger.debug("*****USERLIST: persisting user: " + getUser().getUsername());
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for (int i=0; i<m_users.size(); i++)
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{
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User user = (User)m_users.get(i);
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if (user.getUsername().equals(getUser().getUsername()))
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{
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// found modified user - persist changes
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m_users.set(i, getUser());
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m_usersModel = null;
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break;
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}
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}
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}
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/**
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* Add user action event listener
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*/
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public void addUser(ActionEvent event)
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{
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// create a blank user template
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setUser(new User());
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setIsNewUser(true);
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}
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/**
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* OK button action handler
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*
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* @return outcome view name
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*/
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public void addUserOK(ActionEvent event)
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{
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// persist new user details
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s_logger.debug("*****USERLIST: creating user: " + getUser().getUsername());
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m_users.add(getUser());
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m_usersModel = null;
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}
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/**
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* Example of a value changed event handler
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* NOTE: Value changed events do not submit the form directly, either a command
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* button or link submits the form or can be done manually with Javascript
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*/
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public void roleValueChanged(ValueChangeEvent event)
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{
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s_logger.debug("*****USERLIST: Value change from: " + event.getOldValue() + " to: " + event.getNewValue());
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// example of the use of a direct component binding
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// in the JSP page, a outputText tag has used binding='beanmethod' so we
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// can now programatically modify the component as required
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if (m_rolesOutputText != null)
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{
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m_rolesOutputText.setValue(getUser().getRoles().toString());
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}
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// An alternative to using the component binding would be to lookup the
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// component via it's component Id:
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// HtmlOutputText comp = (HtmlOutputText)event.getComponent().findComponent("roles-text");
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// comp.setValue(...);
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// The attributes of a component are all stored in a Map, the Map features
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// attribute-property transparency which means typed attributes can be get/set
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// directly without using casts as the appropriate getters/setters will be
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// called for you by the framework.
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// comp.getAttributes().put("style", "color:red");
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}
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// ===========================================================================
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// Validator methods
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/**
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* Example of a specific validation method. Required as the basic validator
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* child tags are not sufficient for anything beyond very simple length checks etc.
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*/
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public void validateUsername(FacesContext context, UIComponent component, Object value)
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throws ValidatorException
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{
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String username = (String)value;
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if (username.length() < 5 || username.length() > 12)
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{
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String err = "Username must be between 5 and 12 characters in length.";
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throw new ValidatorException(new FacesMessage(err));
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}
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else if (username.indexOf(' ') != -1 || username.indexOf('\t') != -1)
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{
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String err = "Username cannot contain space or whitespace characters.";
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throw new ValidatorException(new FacesMessage(err));
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}
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}
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// ===========================================================================
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// Private data
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private List<User> m_users = new ArrayList<User>();
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private DataModel m_usersModel = null;
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private User m_currentUser = null;
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private boolean m_isNewUser = false;
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/** the HTMLOutputText component */
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private HtmlOutputText m_rolesOutputText = null;
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protected final static Logger s_logger = Logger.getLogger(UserListBean.class);
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} |