org.apache.sling.installer.api.tasks.InstallTaskFactory Maven / Gradle / Ivy
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* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
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* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.sling.installer.api.tasks;
import org.osgi.annotation.versioning.ConsumerType;
/**
* The install task factory creates a task for a given
* resource.
* An install task factory is a plugin service that
* checks a resource if it is installable by this plugin
* and creates an appropriate task.
*/
@ConsumerType
public interface InstallTaskFactory {
/**
* Optional service registration property setting a unique name
* for the task factory.
* The value of this property must be of type String.
* @since 1.4.0
*/
String NAME = "installtaskfactory.name";
/**
* Creates an {@link InstallTask} for the resource or
* null
if the factory does not support the resource.
*
* The factory should not alter the state of the resources,
* therefore it's not allowed to call one of the setState methods
* on the task resource group!
*
* @param group The group containing the resource to activate.
* @return An install task or {@code null}.
*/
InstallTask createTask(TaskResourceGroup group);
}