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/*******************************************************************************
* Copyright (c) 2008, 2010 IBM Corporation and others.
*
* This program and the accompanying materials
* are made available under the terms of the Eclipse Public License 2.0
* which accompanies this distribution, and is available at
* https://www.eclipse.org/legal/epl-2.0/
*
* SPDX-License-Identifier: EPL-2.0
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.p2.repository;
import java.net.URI;
import java.util.List;
import org.eclipse.equinox.p2.metadata.IArtifactKey;
import org.eclipse.equinox.p2.metadata.IInstallableUnit;
/**
* A composite repository doesn't directly contain any contents, but rather contains
* only a list of child repositories. The composite repository aggregates content
* from the children and acts as a single repository containing the union of all
* child contents. When a composite repository is queried programmatically,
* it will appear to contain all elements that currently exist in one or more
* of its children.
* @param <T> The type of repository content. Typically this is either {@link IInstallableUnit}
* or {@link IArtifactKey}.
* @noextend This interface is not intended to be extended by clients.
* @noimplement This interface is not intended to be implemented by clients.
* @since 2.0
*/
public interface ICompositeRepository<T> extends IRepository<T> {
/**
* Adds a specified URI to list of child repositories.
* Does nothing if URI is a duplicate of an existing child repository.
* @param child
*/
public void addChild(URI child);
/**
* Returns a list of URIs containing the locations of the children repositories
*
* @return a list of URIs containing the locations of the children repositories
*/
public List<URI> getChildren();
/**
* Removes all child repositories
*/
public void removeAllChildren();
/**
* Removes the specified URI from the list of child repositories.
* This method has no effect if the specified URI is not a child repository
* @param child The child to remove
*/
public void removeChild(URI child);
}
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