jakarta.faces.component.UIMessage Maven / Gradle / Ivy
/*
* Copyright (c) 1997, 2020 Oracle and/or its affiliates. All rights reserved.
*
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0, which is available at
* http://www.eclipse.org/legal/epl-2.0.
*
* This Source Code may also be made available under the following Secondary
* Licenses when the conditions for such availability set forth in the
* Eclipse Public License v. 2.0 are satisfied: GNU General Public License,
* version 2 with the GNU Classpath Exception, which is available at
* https://www.gnu.org/software/classpath/license.html.
*
* SPDX-License-Identifier: EPL-2.0 OR GPL-2.0 WITH Classpath-exception-2.0
*/
package jakarta.faces.component;
import jakarta.faces.context.FacesContext;
/**
*
* This component is responsible for displaying messages for a specific
* {@link UIComponent}, identified by a clientId or component id
* relative to the closest ancestor NamingContainer. The component obtains the messages from the
* {@link FacesContext}.
*
*
*
* By default, the rendererType property must be set to "jakarta.faces.Message". This value
* can be changed by calling the setRendererType() method.
*
*
*
*/
public class UIMessage extends UIComponentBase {
// ------------------------------------------------------ Manifest Constants
/**
*
* The standard component type for this component.
*
*/
public static final String COMPONENT_TYPE = "jakarta.faces.Message";
/**
*
* The standard component family for this component.
*
*/
public static final String COMPONENT_FAMILY = "jakarta.faces.Message";
enum PropertyKeys {
forValue("for"), showDetail, showSummary, redisplay;
String toString;
PropertyKeys(String toString) {
this.toString = toString;
}
PropertyKeys() {
}
@Override
public String toString() {
return toString != null ? toString : super.toString();
}
}
// ------------------------------------------------------------ Constructors
/**
*
* Create a new {@link UIMessage} instance with default property values.
*
*/
public UIMessage() {
super();
setRendererType("jakarta.faces.Message");
}
// -------------------------------------------------------------- Properties
@Override
public String getFamily() {
return COMPONENT_FAMILY;
}
/**
*
* Return the Identifier of the component for which to render error messages.
* If this component is within the same NamingContainer as the target component, this must be the component identifier.
* Otherwise, it must be an absolute component identifier (starting with ":"). See the {@link UIComponent#findComponent}
* for more information.
*
*
* @return the for client identifier.
*/
public String getFor() {
return (String) getStateHelper().eval(PropertyKeys.forValue);
}
/**
*
* Set the identifier of the component for which this component
* represents associated message(s) (if any). This property must be set before the message is displayed.
*
*
* @param newFor The new client id
*/
public void setFor(String newFor) {
getStateHelper().put(PropertyKeys.forValue, newFor);
}
/**
*
* Return the flag indicating whether the detail property of the associated message(s) should be displayed.
* Defaults to true.
*
*
* @return true if detail is to be shown, false otherwise.
*/
public boolean isShowDetail() {
return (Boolean) getStateHelper().eval(PropertyKeys.showDetail, true);
}
/**
*
* Set the flag indicating whether the detail property of the associated message(s) should be displayed.
*
*
* @param showDetail The new flag
*/
public void setShowDetail(boolean showDetail) {
getStateHelper().put(PropertyKeys.showDetail, showDetail);
}
/**
*
* Return the flag indicating whether the summary property of the associated message(s) should be
* displayed. Defaults to false.
*
*
* @return true if the summary is to be shown, false otherwise.
*/
public boolean isShowSummary() {
return (Boolean) getStateHelper().eval(PropertyKeys.showSummary, false);
}
/**
*
* Set the flag indicating whether the summary property of the associated message(s) should be displayed.
*
*
* @param showSummary The new flag value
*/
public void setShowSummary(boolean showSummary) {
getStateHelper().put(PropertyKeys.showSummary, showSummary);
}
/**
* @return true if this UIMessage instance should redisplay
* {@link jakarta.faces.application.FacesMessage}s that have already been handled, otherwise returns false.
* By default this method will always return true if {@link #setRedisplay(boolean)} has not been called.
*
* @since 2.0
*/
public boolean isRedisplay() {
return (Boolean) getStateHelper().eval(PropertyKeys.redisplay, true);
}
/**
*
* Set the flag indicating whether the detail property of the associated message(s) should be displayed.
*
*
* @param redisplay flag indicating whether previously handled messages are redisplayed or not
*
* @since 2.0
*/
public void setRedisplay(boolean redisplay) {
getStateHelper().put(PropertyKeys.redisplay, redisplay);
}
}