CmsAppHierarchyBuilder (OpenCms Core API, version 17.0)

java.lang.Object
- org.opencms.ui.apps.CmsAppHierarchyBuilder

```
public class CmsAppHierarchyBuilder
extends java.lang.Object
```
Helper class for building a tree of categories/apps which should be displayed from the list of available apps and categories.

Constructor Summary

Constructors
Constructor Description

CmsAppHierarchyBuilder()

Method Summary

All Methods Instance Methods Concrete Methods
Modifier and Type	Method	Description
`protected void`	`addAppConfigToCategory(I_CmsWorkplaceAppConfiguration appConfig)`	Adds an app configuration to the node belonging to its parent category id.
`void`	`addAppConfiguration(I_CmsWorkplaceAppConfiguration appConfig)`	Adds an app configuration.
`void`	`addCategory(I_CmsAppCategory category)`	Adds an app category.
`protected void`	`addNodeToItsParent(CmsAppCategoryNode node)`	Adds a category node to the category node belonging to its parent id.
`CmsAppCategoryNode`	`buildHierarchy()`	Builds the tree of categories and apps.
`CmsAppCategoryNode`	`getRootNode()`	Gets the root node.

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

- Constructor Detail
  - CmsAppHierarchyBuilder
```
public CmsAppHierarchyBuilder()
```
- Method Detail
  - addAppConfiguration
```
public void addAppConfiguration(I_CmsWorkplaceAppConfiguration appConfig)
```
    Adds an app configuration.
    
    Parameters:
    
    appConfig - the app configuration to add
  - addCategory
```
public void addCategory(I_CmsAppCategory category)
```
    Adds an app category.
    
    Parameters:
    
    category - the app category to add
  - buildHierarchy
```
public CmsAppCategoryNode buildHierarchy()
```
    Builds the tree of categories and apps.
    This tree will only include those categories which are reachable by following the parent chain of an available app configuration up to the root category (null).
    
    Returns:
    
    the root node of the tree
  - getRootNode
```
public CmsAppCategoryNode getRootNode()
```
    Gets the root node.
    
    Returns:
    
    the root node
  - addAppConfigToCategory
```
protected void addAppConfigToCategory(I_CmsWorkplaceAppConfiguration appConfig)
```
    Adds an app configuration to the node belonging to its parent category id.
    
    Parameters:
    
    appConfig - the app configuration to add to its parent node
  - addNodeToItsParent
```
protected void addNodeToItsParent(CmsAppCategoryNode node)
```
    Adds a category node to the category node belonging to its parent id.
    
    Parameters:
    
    node - the node which should be attached to its parent