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package javax.faces.component;
/**
* <p><strong>UIParameter</strong> is a {@link UIComponent} that represents
* an optionally named configuration parameter for a parent component.</p>
*
* <p>Parent components should retrieve the value of a parameter by calling
* <code>getValue()</code>. In this way, the parameter value can be set
* directly on the component (via <code>setValue()</code>), or retrieved
* indirectly via the value binding expression.</p>
*
* <p>In some scenarios, it is necessary to provide a parameter name, in
* addition to the parameter value that is accessible via the
* <code>getValue()</code> method.
* {@link javax.faces.render.Renderer}s that support parameter names on their
* nested {@link UIParameter} child components should document
* their use of this property.</p>
*
*/
public class
UIParameter extends
UIComponentBase {
// ------------------------------------------------------ Manifest Constants
/**
* <p>The standard component type for this component.</p>
*/
public static final
String COMPONENT_TYPE = "javax.faces.Parameter";
/**
* <p>The standard component family for this component.</p>
*/
public static final
String COMPONENT_FAMILY = "javax.faces.Parameter";
enum
PropertyKeys {
name,
value,
disable
}
// ------------------------------------------------------------ Constructors
/**
* <p>Create a new {@link UIParameter} instance with default property
* values.</p>
*/
public
UIParameter() {
super();
setRendererType(null);
}
// -------------------------------------------------------------- Properties
public
String getFamily() {
return (
COMPONENT_FAMILY);
}
/**
* <p>Return the optional parameter name for this parameter.</p>
*/
public
String getName() {
return (
String)
getStateHelper().
eval(
PropertyKeys.
name);
}
/**
* <p>Set the optional parameter name for this parameter.</p>
*
* @param name The new parameter name,
* or <code>null</code> for no name
*/
public void
setName(
String name) {
getStateHelper().
put(
PropertyKeys.
name,
name);
}
/**
* <p>Returns the <code>value</code> property of the
* <code>UIParameter</code>.</p>
*/
public
Object getValue() {
return
getStateHelper().
eval(
PropertyKeys.
value);
}
/**
* <p>Sets the <code>value</code> property of the\
* <code>UIParameter</code>.</p>
*
* @param value the new value
*/
public void
setValue(
Object value) {
getStateHelper().
put(
PropertyKeys.
value,
value);
}
/**
* <p class="changed_added_2_0">Return the value of the <code>disable</code>
* directive for this component. This directive determines whether the
* parameter value should be disabled by assigning it a null value.
* If true, the <code>value</code> set on this component is ignored.</p>
* @since 2.0
*/
public boolean
isDisable() {
return (
Boolean)
getStateHelper().
eval(
PropertyKeys.
disable, false);
}
/**
* <p>Sets the <code>disable</code> property of the <code>UIParameter</code>.</p>
* @param disable
* @since 2.0
*/
public void
setDisable(boolean
disable) {
getStateHelper().
put(
PropertyKeys.
disable,
disable);
}
}