org.eclipse.core.resources.IStorage.java Source code

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Here is the source code for org.eclipse.core.resources.IStorage.java

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/*******************************************************************************
 *  Copyright (c) 2000, 2009 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.core.resources;

import java.io.InputStream;
import org.eclipse.core.runtime.*;

/**
 * A storage object represents a set of bytes which can be accessed.
 * These may be in the form of an <code>IFile</code> or <code>IFileState</code>
 * or any other object supplied by user code.  The main role of an <code>IStorage</code>
 * is to provide a uniform API for access to, and presentation of, its content.
 * <p>
 * Storage objects implement the <code>IAdaptable</code> interface;
 * extensions are managed by the platform's adapter manager.
 * <p>
 * Clients may implement this interface.
 * </p>
 * </p>
 */
public interface IStorage extends IAdaptable {
    /**
     * Returns an open input stream on the contents of this storage.
     * The caller is responsible for closing the stream when finished.
     *
     * @return an input stream containing the contents of this storage
     * @exception CoreException if the contents of this storage could 
     *      not be accessed.   See any refinements for more information.
     */
    public InputStream getContents() throws CoreException;

    /**
     * Returns the full path of this storage.  The returned value
     * depends on the implementor/extender.  A storage need not
     * have a path.
     *
     * @return the path related to the data represented by this storage or 
     *      <code>null</code> if none.
     */
    public IPath getFullPath();

    /**
     * Returns the name of this storage. 
     * The name of a storage is synonymous with the last segment
     * of its full path though if the storage does not have a path,
     * it may still have a name.
     *
     * @return the name of the data represented by this storage,
     *      or <code>null</code> if this storage has no name
     * @see #getFullPath()
     */
    public String getName();

    /**
     * Returns whether this storage is read-only.
     *
     * @return <code>true</code> if this storage is read-only
     */
    public boolean isReadOnly();
}