javax.faces.component.UIMessage Maven / Gradle / Ivy
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/*
* Copyright (c) 1997, 2018 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 javax.faces.component;
import javax.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
* "javax.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 = "javax.faces.Message";
/**
* The standard component family for this component.
*/
public static final String COMPONENT_FAMILY = "javax.faces.Message";
enum PropertyKeys {
forValue("for"),
showDetail,
showSummary,
redisplay;
String toString;
PropertyKeys(String toString) {
this.toString = toString;
}
PropertyKeys() {
}
@Override
public String toString() {
return ((this.toString != null) ? this.toString : super.toString());
}
}
// ------------------------------------------------------------ Constructors
/**
* Create a new {@link UIMessage} instance with default property
* values.
*/
public UIMessage() {
super();
setRendererType("javax.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 javax.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);
}
}