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/*******************************************************************************
* Copyright (c) 2007 IBM Corporation and others.
* All rights reserved. This program and the accompanying materials
* are made available under the terms of the Eclipse Public License v1.0
* which accompanies this distribution, and is available at
* http://www.eclipse.org/legal/epl-v10.html
*
* Contributors:
* IBM Corporation - initial API and implementation
*******************************************************************************/
package org.eclipse.equinox.p2.artifact.repository;
import java.util.Map;
import org.eclipse.equinox.p2.artifact.repository.processing.ProcessingStepDescriptor;
import org.eclipse.equinox.p2.metadata.IArtifactKey;
public interface IArtifactDescriptor {
public static final String DOWNLOAD_SIZE = "download.size"; //$NON-NLS-1$
public static final String ARTIFACT_SIZE = "artifact.size"; //$NON-NLS-1$
public static final String DOWNLOAD_MD5 = "download.md5"; //$NON-NLS-1$
public static final String ARTIFACT_MD5 = "artifact.md5"; //$NON-NLS-1$
public static final String FORMAT = "format"; //$NON-NLS-1$
/**
* Return the key for the artifact described by this descriptor.
* @return the key associated with this descriptor
*/
public abstract IArtifactKey getArtifactKey();
/**
* Return the value of the given property in this descriptor <code>null</code>
* is returned if no such property exists
* @param key the property key to look for
* @return the value of the given property or <code>null</code>
*/
public abstract String getProperty(String key);
/**
* Returns a read-only collection of the properties of the artifact descriptor.
* @return the properties of this artifact descriptor.
*/
public Map getProperties();
/**
* Return the list of processing steps associated with this descriptor.
* An empty set of steps implies that this descriptor describes a complete
* copy of the artifact in its native form.
* @return the list of processing steps for this descriptor
*/
public abstract ProcessingStepDescriptor[] getProcessingSteps();
/**
* Return the artifact repository that holds the artifact described by this descriptor.
* <code>null</code> is returned if this descriptor is not held in a repository.
*
* @return the repository holding this artifact or <code>null</code> if none.
*/
public abstract IArtifactRepository getRepository();
}
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