javax.faces.component.UISelectBoolean Maven / Gradle / Ivy
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package javax.faces.component;
import javax.el.ValueExpression;
import javax.faces.el.ValueBinding;
/**
*
* 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
* "javax.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 = "javax.faces.SelectBoolean";
/**
*
* The standard component family for this component.
*
*/
public static final String COMPONENT_FAMILY = "javax.faces.SelectBoolean";
// ------------------------------------------------------------ Constructors
/**
*
* Create a new {@link UISelectBoolean} instance with default property values.
*
*/
public UISelectBoolean() {
super();
setRendererType("javax.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);
}
}
// ------------------------------------------------------------ Deprecated methods
/**
*
* Return any {@link ValueBinding} set for value if a {@link ValueBinding} for
* selected is requested; otherwise, perform the default superclass processing for
* this method.
*
*
*
* Rely on the superclass implementation to wrap the returned ValueExpression in a
* ValueBinding.
*
*
* @param name Name of the attribute or property for which to retrieve a {@link ValueBinding}
*
* @throws NullPointerException if name is null
*
* @deprecated This has been replaced by {@link #getValueExpression}.
*/
@Override
public ValueBinding getValueBinding(String name) {
if ("selected".equals(name)) {
return super.getValueBinding("value");
}
return super.getValueBinding(name);
}
/**
*
* Store any {@link ValueBinding} specified for selected under value
* instead; otherwise, perform the default superclass processing for this method.
*
*
*
* Rely on the superclass implementation to wrap the argument ValueBinding in a
* ValueExpression.
*
*
* @param name Name of the attribute or property for which to set a {@link ValueBinding}
* @param binding The {@link ValueBinding} to set, or null to remove any currently
* set {@link ValueBinding}
*
* @throws NullPointerException if name is null
*
* @deprecated This has been replaced by {@link #setValueExpression}.
*/
@Override
public void setValueBinding(String name, ValueBinding binding) {
if ("selected".equals(name)) {
super.setValueBinding("value", binding);
} else {
super.setValueBinding(name, binding);
}
}
}