jakarta.faces.component.UISelectBoolean 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.el.ValueExpression;
/**
*
* UISelectBoolean is a {@link UIComponent} that represents a single boolean (true or
* false) value. It is most commonly rendered as a checkbox.
*
*
*
* By default, the rendererType property must be set to "jakarta.faces.Checkbox". This value
* can be changed by calling the setRendererType() method.
*
*/
public class UISelectBoolean extends UIInput {
// ------------------------------------------------------ Manifest Constants
/**
*
* The standard component type for this component.
*
*/
public static final String COMPONENT_TYPE = "jakarta.faces.SelectBoolean";
/**
*
* The standard component family for this component.
*
*/
public static final String COMPONENT_FAMILY = "jakarta.faces.SelectBoolean";
// ------------------------------------------------------------ Constructors
/**
*
* Create a new {@link UISelectBoolean} instance with default property values.
*
*/
public UISelectBoolean() {
super();
setRendererType("jakarta.faces.Checkbox");
}
// -------------------------------------------------------------- Properties
@Override
public String getFamily() {
return COMPONENT_FAMILY;
}
/**
*
* Return the local value of the selected state of this component. This method is a typesafe alias for
* getValue().
*
*
* @return true if selected, false otherwise.
*/
public boolean isSelected() {
Boolean value = (Boolean) getValue();
if (value != null) {
return value.booleanValue();
}
return false;
}
/**
*
* Set the local value of the selected state of this component. This method is a typesafe alias for
* setValue().
*
*
* @param selected The new selected state
*/
public void setSelected(boolean selected) {
setValue(selected);
}
// ---------------------------------------------------------------- Bindings
/**
*
* Return any {@link ValueExpression} set for value if a {@link ValueExpression} for selected
* is requested; otherwise, perform the default superclass processing for this method.
*
*
* @param name Name of the attribute or property for which to retrieve a {@link ValueExpression}
*
* @throws NullPointerException if name is null
* @since 1.2
*/
@Override
public ValueExpression getValueExpression(String name) {
if ("selected".equals(name)) {
return super.getValueExpression("value");
}
return super.getValueExpression(name);
}
/**
*
* Store any {@link ValueExpression} specified for selected under value instead; otherwise,
* perform the default superclass processing for this method.
*
*
* @param name Name of the attribute or property for which to set a {@link ValueExpression}
* @param binding The {@link ValueExpression} to set, or null to remove any currently set
* {@link ValueExpression}
*
* @throws NullPointerException if name is null
* @since 1.2
*/
@Override
public void setValueExpression(String name, ValueExpression binding) {
if ("selected".equals(name)) {
super.setValueExpression("value", binding);
} else {
super.setValueExpression(name, binding);
}
}
}