com.sun.faces.renderkit.html_basic.HiddenRenderer Maven / Gradle / Ivy
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// HiddenRenderer.java
package com.sun.faces.renderkit.html_basic;
import java.io.IOException;
import javax.faces.component.UIComponent;
import javax.faces.context.FacesContext;
import javax.faces.context.ResponseWriter;
/**
* HiddenRenderer is a class that renders the current value of
* UIInput component as a HTML hidden variable.
*/
public class HiddenRenderer extends HtmlBasicInputRenderer {
// ---------------------------------------------------------- Public Methods
@Override
public void encodeBegin(FacesContext context, UIComponent component)
throws IOException {
rendererParamsNotNull(context, component);
}
// ------------------------------------------------------- Protected Methods
@Override
protected void getEndTextToRender(FacesContext context,
UIComponent component,
String currentValue)
throws IOException {
ResponseWriter writer = context.getResponseWriter();
assert(writer != null);
writer.startElement("input", component);
writeIdAttributeIfNecessary(context, writer, component);
writer.writeAttribute("type", "hidden", "type");
String clientId = component.getClientId(context);
writer.writeAttribute("name", clientId, "clientId");
// render default text specified
if (currentValue != null) {
writer.writeAttribute("value", currentValue, "value");
}
writer.endElement("input");
}
// The testcase for this class is TestRenderers_3.java
} // end of class HiddenRenderer