/**
* ***************************************************************************
* Copyright (c) 2010 Qcadoo Limited
* Project: Qcadoo Framework
* Version: 1.4
*
* This file is part of Qcadoo.
*
* Qcadoo is free software; you can redistribute it and/or modify
* it under the terms of the GNU Affero General Public License as published
* by the Free Software Foundation; either version 3 of the License,
* or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty
* of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
* See the GNU Affero General Public License for more details.
*
* You should have received a copy of the GNU Affero General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
* ***************************************************************************
*/
package com.qcadoo.plugin.api;
import java.util.Collection;
/**
* Service to accessing plugins registered in the system.
*
* @since 0.4.0
*/
public interface PluginAccessor {
/**
* Returns plugin with given identifier and status {@link PluginState#ENABLED}.
*
* @param identifier
* plugin's identifier
* @return enabled plugin or null if not found
*/
Plugin getEnabledPlugin(String identifier);
/**
* Returns all registered plugins with status {@link PluginState#ENABLED}.
*
* @return enabled plugins
*/
Collection<Plugin> getEnabledPlugins();
/**
* Returns plugin with given identifier.
*
* @param identifier
* plugin's identifier
* @return plugin or null if not found
*/
Plugin getPlugin(String identifier);
/**
* Returns all registered plugins.
*
* @return plugins
*/
Collection<Plugin> getPlugins();
/**
* Returns all system plugins.
*
* @return system plugins
*/
Collection<Plugin> getSystemPlugins();
}