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- /*
- * Copyright (C) 2010, Google Inc.
- * and other copyright owners as documented in the project's IP log.
- *
- * This program and the accompanying materials are made available
- * under the terms of the Eclipse Distribution License v1.0 which
- * accompanies this distribution, is reproduced below, and is
- * available at http://www.eclipse.org/org/documents/edl-v10.php
- *
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or
- * without modification, are permitted provided that the following
- * conditions are met:
- *
- * - Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * - Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following
- * disclaimer in the documentation and/or other materials provided
- * with the distribution.
- *
- * - Neither the name of the Eclipse Foundation, Inc. nor the
- * names of its contributors may be used to endorse or promote
- * products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND
- * CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES,
- * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
- * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
- * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
- * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
- * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- */
-
- package org.eclipse.jgit.storage.pack;
-
- import org.eclipse.jgit.lib.ObjectId;
-
- /**
- * An object representation {@link PackWriter} can consider for packing.
- */
- public class StoredObjectRepresentation {
- /** Special unknown value for {@link #getWeight()}. */
- public static final int WEIGHT_UNKNOWN = Integer.MAX_VALUE;
-
- /** Stored in pack format, as a delta to another object. */
- public static final int PACK_DELTA = 0;
-
- /** Stored in pack format, without delta. */
- public static final int PACK_WHOLE = 1;
-
- /** Only available after inflating to canonical format. */
- public static final int FORMAT_OTHER = 2;
-
- /**
- * @return relative size of this object's packed form. The special value
- * {@link #WEIGHT_UNKNOWN} can be returned to indicate the
- * implementation doesn't know, or cannot supply the weight up
- * front.
- */
- public int getWeight() {
- return WEIGHT_UNKNOWN;
- }
-
- /**
- * @return the storage format type, which must be one of
- * {@link #PACK_DELTA}, {@link #PACK_WHOLE}, or
- * {@link #FORMAT_OTHER}.
- */
- public int getFormat() {
- return FORMAT_OTHER;
- }
-
- /**
- * @return identity of the object this delta applies to in order to recover
- * the original object content. This method should only be called if
- * {@link #getFormat()} returned {@link #PACK_DELTA}.
- */
- public ObjectId getDeltaBase() {
- return null;
- }
-
- /**
- * @return whether the current representation of the object has had delta
- * compression attempted on it.
- */
- public boolean wasDeltaAttempted() {
- int fmt = getFormat();
- return fmt == PACK_DELTA || fmt == PACK_WHOLE;
- }
- }
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