| /* |
| * Copyright (C) 2010, Google Inc. and others |
| * |
| * This program and the accompanying materials are made available under the |
| * terms of the Eclipse Distribution License v. 1.0 which is available at |
| * https://www.eclipse.org/org/documents/edl-v10.php. |
| * |
| * SPDX-License-Identifier: BSD-3-Clause |
| */ |
| |
| package org.eclipse.jgit.internal.storage.pack; |
| |
| import org.eclipse.jgit.lib.ObjectId; |
| |
| /** |
| * An object representation |
| * {@link org.eclipse.jgit.internal.storage.pack.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; |
| |
| /** |
| * Get relative size of this object's packed form. |
| * |
| * @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; |
| } |
| |
| /** |
| * Get the storage format type |
| * |
| * @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; |
| } |
| |
| /** |
| * Get identity of the object this delta applies to in order to recover the |
| * original object content. |
| * |
| * @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; |
| } |
| |
| /** |
| * Whether the current representation of the object has had delta |
| * compression attempted on it. |
| * |
| * @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; |
| } |
| } |