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/*
 * Fabric3
 * Copyright (c) 2009-2015 Metaform Systems
 *
 * Licensed 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 "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 * Portions originally based on Apache Tuscany 2007
 * licensed under the Apache 2.0 license.
 */
package org.fabric3.spi.domain;

import java.net.URI;

import org.fabric3.spi.model.instance.LogicalComponent;
import org.fabric3.spi.model.instance.LogicalCompositeComponent;

/**
 * Manages logical components in a domain. There is one LogicalComponentManager per domain.
 */
public interface LogicalComponentManager {

    /**
     * Returns the root component in the domain.
     *
     * @return the root component in the domain.
     */
    LogicalCompositeComponent getRootComponent();

    /**
     * Replaces the root component in the domain. This is used during deployment to update the domain with a modified copy of the logical model.
     *
     * @param component the replacement
     */
    void replaceRootComponent(LogicalCompositeComponent component);

    /**
     * Returns the component uniquely identified by an id.
     *
     * @param uri the unique id of the component
     * @return the component uniquely identified by an id, or null
     */
    LogicalComponent getComponent(URI uri);

}