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