83 lines
2.6 KiB
Java
Executable File
83 lines
2.6 KiB
Java
Executable File
/*
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* Copyright (C) 2001-2004 Red Hat Inc. All Rights Reserved.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public License
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* as published by the Free Software Foundation; either version 2.1 of
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* the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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package com.arsdigita.navigation;
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import com.arsdigita.categorization.Category;
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import com.arsdigita.kernel.ACSObject;
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import com.arsdigita.london.util.TransactionLocal;
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public abstract class AbstractNavigationModel implements NavigationModel {
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private TransactionLocal m_object = new TransactionLocal() {
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public Object initialValue() {
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return loadObject();
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}
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};
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private TransactionLocal m_category = new TransactionLocal() {
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public Object initialValue() {
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return loadCategory();
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}
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};
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private TransactionLocal m_categoryPath = new TransactionLocal() {
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public Object initialValue() {
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return loadCategoryPath();
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}
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};
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private TransactionLocal m_rootCategory = new TransactionLocal() {
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public Object initialValue() {
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return loadRootCategory();
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}
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};
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protected abstract ACSObject loadObject();
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protected abstract Category loadCategory();
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protected abstract Category[] loadCategoryPath();
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protected abstract Category loadRootCategory();
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/**
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* Returns the currently selected display object
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*/
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public final ACSObject getObject() {
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return (ACSObject)m_object.get();
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}
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/**
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* Returns the currently selected category
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*/
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public final Category getCategory() {
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return (Category)m_category.get();
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}
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/**
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* Returns the ancestors for the currently selected
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* category.
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*/
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public final Category[] getCategoryPath() {
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return (Category[])m_categoryPath.get();
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}
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/**
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* Returns the root category
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*/
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public final Category getRootCategory() {
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return (Category)m_rootCategory.get();
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}
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}
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