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comparison src/org/tmatesoft/hg/core/SessionContext.java @ 571:e4ee4bf4c7d0

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Let session context control creation of Path instances
author Artem Tikhomirov <tikhomirov.artem@gmail.com>
date Thu, 11 Apr 2013 16:27:06 +0200
parents b3c16d1aede0
children fba85bc1dfb8
comparison
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570:36853bb80a35 571:e4ee4bf4c7d0
1 /* 1 /*
2 * Copyright (c) 2011-2012 TMate Software Ltd 2 * Copyright (c) 2011-2013 TMate Software Ltd
3 * 3 *
4 * This program is free software; you can redistribute it and/or modify 4 * This program is free software; you can redistribute it and/or modify
5 * it under the terms of the GNU General Public License as published by 5 * it under the terms of the GNU General Public License as published by
6 * the Free Software Foundation; version 2 of the License. 6 * the Free Software Foundation; version 2 of the License.
7 * 7 *
15 * contact TMate Software at support@hg4j.com 15 * contact TMate Software at support@hg4j.com
16 */ 16 */
17 package org.tmatesoft.hg.core; 17 package org.tmatesoft.hg.core;
18 18
19 import org.tmatesoft.hg.util.LogFacility; 19 import org.tmatesoft.hg.util.LogFacility;
20 import org.tmatesoft.hg.util.Path;
20 21
21 /** 22 /**
22 * Access to objects that might need to be shared between various distinct operations ran during the same working session 23 * Access to objects that might need to be shared between various distinct operations ran during the same working session
23 * (i.e. caches, log, etc.). It's unspecified whether session context is per repository or can span multiple repositories 24 * (i.e. caches, log, etc.). It's unspecified whether session context is per repository or can span multiple repositories
24 * 25 *
45 public abstract Object getConfigurationProperty(String name, Object defaultValue); 46 public abstract Object getConfigurationProperty(String name, Object defaultValue);
46 // perhaps, later may add Configuration object, with PropertyMarshal's helpers 47 // perhaps, later may add Configuration object, with PropertyMarshal's helpers
47 // e.g. when there's standalone Caches and WritableSessionProperties objects 48 // e.g. when there's standalone Caches and WritableSessionProperties objects
48 49
49 /** 50 /**
51 * Provide a factory to create {@link Path} objects.
52 *
53 * Occasionally, there's a need to construct a {@link Path} object from a string/byte data
54 * kept in mercurial control files. Generally, default implementation (with {@link Path#create(CharSequence)}
55 * is enough, however, if there's a need to control number of string objects in memory (i.e. prevent duplicates),
56 * default implementation might need to be replaced with more sophisticated (e.g. using weak references or
57 * just a huge hash set).
58 *
59 * @return factory to construct Path objects, never <code>null</code>
60 */
61 public Path.Source getPathFactory() {
62 return new Path.Source() {
63 public Path path(CharSequence p) {
64 return Path.create(p);
65 }
66 };
67 }
68
69 /**
50 * Providers of the context may implement 70 * Providers of the context may implement
51 */ 71 */
52 public interface Source { 72 public interface Source {
53 SessionContext getSessionContext(); 73 SessionContext getSessionContext();
54 } 74 }