Package org.silverpeas.core.contribution.content.form.displayers

Class JdbcFieldDisplayer

java.lang.Object

org.silverpeas.core.contribution.content.form.displayers.AbstractFieldDisplayer<JdbcField>

org.silverpeas.core.contribution.content.form.displayers.JdbcFieldDisplayer

All Implemented Interfaces:

FieldDisplayer<JdbcField>

public class JdbcFieldDisplayer
extends AbstractFieldDisplayer<JdbcField>

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

See Also:

Field, FieldTemplate, Form, FieldDisplayer

Constructor Summary

Constructors

Constructor	Description
JdbcFieldDisplayer()	Constructor

Method Summary

Modifier and Type	Method	Description
void	display(PrintWriter out, JdbcField 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(String newValue, JdbcField field, FieldTemplate template, PagesContext pagesContext)	Updates the value of the field.

Methods inherited from class org.silverpeas.core.contribution.content.form.displayers.AbstractFieldDisplayer

getDefaultValue, index, update

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Detail

JdbcFieldDisplayer

public JdbcFieldDisplayer()

Constructor

Method Detail

getManagedTypes

public String[] getManagedTypes()

Returns the name of the managed types.

displayScripts

public 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. 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 :

• the fieldName is unknown by the template.
• the field type is not a managed type.

display

public void display(PrintWriter out,
                    JdbcField 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 :

• the field type is not a managed type.

Throws:

FormException

update

public List<String> update(String newValue,
                           JdbcField field,
                           FieldTemplate template,
                           PagesContext pagesContext)
                    throws FormException

Updates the value of the field. The fieldName must be used to retrieve the HTTP parameter from the request.

Throws:

FormException - if the field type is not a managed type or if the field doesn't accept the new value.

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.