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This page (revision-8) was last changed on 19-Sep-2018 13:22 by Dieter Käppel

This page was created on 22-Oct-2010 13:36 by Dieter Käppel

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Version Date Modified Size Author Changes ... Change note
8 19-Sep-2018 13:22 8 KB Dieter Käppel to previous
7 19-Sep-2018 13:22 8 KB Dieter Käppel to previous | to last
6 19-Sep-2018 13:21 8 KB Dieter Käppel to previous | to last
5 09-Jan-2014 11:03 8 KB Dieter Käppel to previous | to last
4 04-Nov-2010 15:47 6 KB Dieter Käppel to previous | to last
3 03-Nov-2010 14:20 4 KB Dieter Käppel to previous | to last
2 29-Oct-2010 17:16 2 KB Dieter Käppel to previous | to last
1 22-Oct-2010 13:36 2 KB Dieter Käppel to last

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Difference between version and

At line 1 changed one line
!Parameterisierter Validator Tag
!!!Parameterisierter Validator Tag
At line 108 changed one line
!ViewHandler
!!!ViewHandler
At line 162 changed one line
!Einfache Komponente
!!!Einfache Komponente
At line 232 added 97 lines
!!!ClearValuesActionListener
ClearValuesActionListenerHandler:
{{{
public class ClearValuesActionListenerHandler extends TagHandler {
public static class ClearValuesActionListener implements ActionListener, Serializable {
private ValueExpression forValue;
public ClearValuesActionListener() {
}
public ClearValuesActionListener(ValueExpression forValue) {
this.forValue = forValue;
}
public ValueExpression getFor() {
return forValue;
}
public void setFor(ValueExpression forValue) {
this.forValue = forValue;
}
@Override
public void processAction(ActionEvent actionEvent) {
String id = (String)forValue.getValue(FacesContext.getCurrentInstance().getELContext());
UIComponent component =
RendererUtils.getInstance().findComponentFor(actionEvent.getComponent(), id);
clearValues(component);
}
private void clearValues(UIComponent component) {
if (component instanceof UIInput) {
UIInput input = (UIInput)component;
input.setSubmittedValue(null);
}
for (UIComponent child : component.getChildren()) {
clearValues(child);
}
}
}
private TagAttribute forAttribute;
public ClearValuesActionListenerHandler(TagConfig config) {
super(config);
forAttribute = getRequiredAttribute("for");
}
@Override
public void apply(FaceletContext context, UIComponent parent) {
if (!(parent instanceof ActionSource))
throw new TagException(tag, "Parent component must be action source");
ActionSource actionSource = (ActionSource)parent;
ValueExpression forValue = forAttribute.getValueExpression(context, String.class);
actionSource.addActionListener(new ClearValuesActionListener(forValue));
}
}
}}}
Taglib:
{{{
<tag>
<tag-name>clearValuesActionListener</tag-name>
<handler-class>com.intersult.ClearValuesActionListenerHandler</handler-class>
</tag>
}}}
!!!RES_NOT_FOUND finden
Wenn im HTML-Code Stylesheets, Javascripts oder andere Resourcen als
{{{
<link type="text/css" rel="stylesheet" href="RES_NOT_FOUND"/>
}}}
gerendert werden, ist die Quelle des Fehlers oft schwer zu finden. Dazu kann ein Breakpoint in
{{{ com.sun.faces.renderkit.html_basic.HtmlResponseWriter.writeURIAttributeIgnoringPassThroughAttributes(String, Object, String, boolean)
}}}
gesetzt werden mit der Condition
{{{
"RES_NOT_FOUND".equals(value)
}}}
und dann entsprechend im Stack zur Ursache zurückgegangen werden, etwa zu
{{{
com.sun.faces.renderkit.html_basic.ScriptStyleBaseRenderer.encodeEnd(FacesContext, UIComponent) line: 249
}}}
dort findet man
{{{
Resource resource = resourceHandler.createResource(name, library);
}}}
den Name und Library der angeforderten Resources.
This page (revision-8) was last changed on 19-Sep-2018 13:22 by Dieter Käppel Top
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