Example usage for com.liferay.portal.kernel.util ListTree ListTree

Introduction

In this page you can find the example usage for com.liferay.portal.kernel.util ListTree ListTree.

Prototype

public ListTree(T value) 

Source Link

Usage

From source file:com.liferay.portlet.messageboards.model.impl.MBCategoryDisplayImpl.java

License:Open Source License

protected void init(long scopeGroupId, long categoryId) throws Exception {
    _allCategories = MBCategoryServiceUtil.getCategories(scopeGroupId);

    _rootCategory = new MBCategoryImpl();

    _rootCategory.setCategoryId(categoryId);

    _categoryTree = new ListTree<MBCategory>(_rootCategory);

    _categoryNodesMap = new HashMap<Long, TreeNode<MBCategory>>();

    Map<Long, List<MBCategory>> categoriesMap = new HashMap<Long, List<MBCategory>>();

    for (MBCategory category : _allCategories) {
        Long parentCategoryId = category.getParentCategoryId();

        List<MBCategory> curCategories = categoriesMap.get(parentCategoryId);

        if (curCategories == null) {
            curCategories = new ArrayList<MBCategory>();

            categoriesMap.put(parentCategoryId, curCategories);
        }//from  w ww . j a v a  2 s .com

        curCategories.add(category);
    }

    populateCategoryNodesMap(_categoryTree.getRootNode(), categoriesMap);
}

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