ViewIdBean (formcycle: bom 8.1.0-RC.1 API)

java.lang.Object
- de.xima.fc.gui.common.bean.ViewIdBean

All Implemented Interfaces:

Serializable
```
@ViewScoped
@Named
public class ViewIdBean
extends Object
implements Serializable
```
Bean that associates a UUID with each view. This is better that relying on the internal java.faces.ViewState, which may not contain an ID in case of client-side state saving etc.

Since:

7.0.0

Author:

XIMA MEDIA GmbH

See Also:

Serialized Form

Constructor Summary

Constructors
Constructor Description

ViewIdBean()

Method Summary

All Methods Static Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`static Optional<UUID>`	`getCurrentViewId()`
`UUID`	`getViewId()`
`static boolean`	`isDifferentView(UUID viewId)`
`static boolean`	`isSameView(UUID viewId)`

Methods inherited from class java.lang.Object
clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

- Constructor Detail
  - ViewIdBean
```
public ViewIdBean()
```
- Method Detail
  - getViewId
```
public UUID getViewId()
```
    Returns:
    
    The ID of the current view.
  - getCurrentViewId
```
public static Optional<UUID> getCurrentViewId()
```
    Returns:
    
    The ID of the current view, if this method is called within a JSF context. Otherwise,returns an empty optional.
  - isSameView
```
public static boolean isSameView(UUID viewId)
```
    Parameters:
    
    viewId - A view ID against which to check.
    
    Returns:
    
    true when called within a JSF context and the current view equals the given view ID, false otherwise.
  - isDifferentView
```
public static boolean isDifferentView(UUID viewId)
```
    Parameters:
    
    viewId - A view ID against which to check.
    
    Returns:
    
    When the given view ID is not null: true when either not within a JSF context or the current view is different from the given view ID, false otherwise. When the given view ID is null: true when there is a an active view ID, false otherwise.