jakarta.faces.component.UISelectItems 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;
import jakarta.faces.model.SelectItem;
/**
*
* UISelectItems is a component that may be nested inside a {@link UISelectMany} or {@link UISelectOne}
* component, and causes the addition of one or more {@link SelectItem} instances to the list of available options in
* the parent component. The value of this component (set either directly, or acquired indirectly a
* {@link jakarta.el.ValueExpression}, can be of any of the following types:
*
*
* - Single instance of {@link SelectItem} - This instance is added to the set of available options for the
* parent tag.
* - Array of {@link SelectItem} - This set of instances is added to the set of available options for the
* parent component, in ascending subscript order.
* - Collection of {@link SelectItem} - This set of instances is added to the set of available options for
* the parent component, in the order provided by an iterator over them.
* - Map - The keys of this object (once converted to Strings) are assumed to be labels, and the values of
* this object (once converted to Strings) are assumed to be values, of {@link SelectItem} instances that will be
* constructed dynamically and added to the set of available options for the parent component, in the order provided by
* an iterator over the keys.
*
*/
public class UISelectItems extends UIComponentBase {
// ------------------------------------------------------ Manifest Constants
/**
*
* The standard component type for this component.
*
*/
public static final String COMPONENT_TYPE = "jakarta.faces.SelectItems";
/**
*
* The standard component family for this component.
*
*/
public static final String COMPONENT_FAMILY = "jakarta.faces.SelectItems";
enum PropertyKeys {
value
}
// ------------------------------------------------------------ Constructors
/**
*
* Create a new {@link UISelectItems} instance with default property values.
*
*/
public UISelectItems() {
super();
setRendererType(null);
}
// ---------------------------------------------------------------- Bindings
/**
*
* Set the {@link ValueExpression} used to calculate the value for the specified attribute or property name, if any.
* In addition, if a {@link ValueExpression} is set for the var property, regardless of the value, throw an illegal argument exception.
*
*
* @throws IllegalArgumentException If name is one of id, parent, or var.
* @throws NullPointerException {@inheritDoc}
*/
@Override
public void setValueExpression(String name, ValueExpression binding) {
if ("var".equals(name)) {
throw new IllegalArgumentException();
}
super.setValueExpression(name, binding);
}
// -------------------------------------------------------------- Properties
@Override
public String getFamily() {
return COMPONENT_FAMILY;
}
// -------------------------------------------------- ValueHolder Properties
/**
*
* Returns the value property of the UISelectItems.
*
*
* @return the value.
*/
public Object getValue() {
return getStateHelper().eval(PropertyKeys.value);
}
/**
*
* Sets the value property of the UISelectItems.
*
*
* @param value the new value
*/
public void setValue(Object value) {
getStateHelper().put(PropertyKeys.value, value);
}
}