com.silverpeas.form.displayers
Class CheckBoxDisplayer

java.lang.Object
  extended by com.silverpeas.form.displayers.AbstractFieldDisplayer<TextField>
      extended by com.silverpeas.form.displayers.CheckBoxDisplayer
All Implemented Interfaces:
FieldDisplayer<TextField>

public class CheckBoxDisplayer
extends AbstractFieldDisplayer<TextField>

A CheckBoxDisplayer is an object which can display a checkbox in HTML the content of a checkbox to a end user and can retrieve via HTTP any updated value.

See Also:
Field, FieldTemplate, Form, FieldDisplayer

Constructor Summary
CheckBoxDisplayer()
          Constructeur
 
Method Summary
 void display(PrintWriter out, TextField field, FieldTemplate template, PagesContext PagesContext)
          Prints the HTML value of the field.
 void displayScripts(PrintWriter out, FieldTemplate template, PagesContext pagesContext)
          Prints the javascripts which will be used to control the new value given to the named field.
 String[] getManagedTypes()
          Returns the name of the managed types.
 int getNbHtmlObjectsDisplayed(FieldTemplate template, PagesContext pagesContext)
          Return the number of HTML Objects displayed by the displayer.
 boolean isDisplayedMandatory()
           
 List<String> update(List<org.apache.commons.fileupload.FileItem> items, TextField field, FieldTemplate template, PagesContext pageContext)
          Updates the value of the field.
 List<String> update(String values, TextField field, FieldTemplate template, PagesContext PagesContext)
          Updates the value of the field.
 
Methods inherited from class com.silverpeas.form.displayers.AbstractFieldDisplayer
index
 
Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait
 

Constructor Detail

CheckBoxDisplayer

public CheckBoxDisplayer()
Constructeur

Method Detail

getManagedTypes

public String[] getManagedTypes()
Returns the name of the managed types.

Returns:

displayScripts

public void displayScripts(PrintWriter out,
                           FieldTemplate template,
                           PagesContext pagesContext)
                    throws IOException
Prints the javascripts which will be used to control the new value given to the named field. The error messages may be adapted to a local language. The FieldTemplate gives the field type and constraints. The FieldTemplate gives the local labeld too. Never throws an Exception but log a silvertrace and writes an empty string when :

Parameters:
out -
template -
pagesContext -
Throws:
IOException

display

public void display(PrintWriter out,
                    TextField field,
                    FieldTemplate template,
                    PagesContext PagesContext)
             throws FormException
Prints the HTML value of the field. The displayed value must be updatable by the end user. The value format may be adapted to a local language. The fieldName must be used to name the html form input. Never throws an Exception but log a silvertrace and writes an empty string when :

Parameters:
out -
field -
template -
PagesContext -
Throws:
FormException

update

public List<String> update(List<org.apache.commons.fileupload.FileItem> items,
                           TextField field,
                           FieldTemplate template,
                           PagesContext pageContext)
                    throws FormException
Description copied from interface: FieldDisplayer
Updates the value of the field. The fieldName must be used to retrieve the HTTP parameter from the request. @throw FormException if the field type is not a managed type. @throw FormException if the field doesn't accept the new value.

Specified by:
update in interface FieldDisplayer<TextField>
Overrides:
update in class AbstractFieldDisplayer<TextField>
Returns:
Throws:
FormException

update

public List<String> update(String values,
                           TextField field,
                           FieldTemplate template,
                           PagesContext PagesContext)
                    throws FormException
Description copied from interface: FieldDisplayer
Updates the value of the field. The fieldName must be used to retrieve the HTTP parameter from the request. @throw FormException if the field type is not a managed type. @throw FormException if the field doesn't accept the new value.

Returns:
Throws:
FormException

isDisplayedMandatory

public boolean isDisplayedMandatory()

getNbHtmlObjectsDisplayed

public int getNbHtmlObjectsDisplayed(FieldTemplate template,
                                     PagesContext pagesContext)
Description copied from interface: FieldDisplayer
Return the number of HTML Objects displayed by the displayer.

Returns:
the number of HTML Objects displayed by the displayer.


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