| author | cli |
| Fri Aug 21 17:33:15 2009 +0200 (2009-08-21) | |
| changeset 18 | 7e527fdf0fa8 |
| parent 3 | 2fdc9cc89502 |
| child 31 | 087ef6fe6a1a |
| permissions | -rw-r--r-- |
| chris@3 | 1 |
/* |
| chris@3 | 2 |
* SONEWS News Server |
| chris@3 | 3 |
* see AUTHORS for the list of contributors |
| chris@3 | 4 |
* |
| chris@3 | 5 |
* This program is free software: you can redistribute it and/or modify |
| chris@3 | 6 |
* it under the terms of the GNU General Public License as published by |
| chris@3 | 7 |
* the Free Software Foundation, either version 3 of the License, or |
| chris@3 | 8 |
* (at your option) any later version. |
| chris@3 | 9 |
* |
| chris@3 | 10 |
* This program is distributed in the hope that it will be useful, |
| chris@3 | 11 |
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
| chris@3 | 12 |
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| chris@3 | 13 |
* GNU General Public License for more details. |
| chris@3 | 14 |
* |
| chris@3 | 15 |
* You should have received a copy of the GNU General Public License |
| chris@3 | 16 |
* along with this program. If not, see <http://www.gnu.org/licenses/>. |
| chris@3 | 17 |
*/ |
| chris@3 | 18 |
|
| chris@3 | 19 |
package org.sonews.storage; |
| chris@3 | 20 |
|
| chris@3 | 21 |
import java.util.ArrayList; |
| chris@3 | 22 |
import java.util.List; |
| chris@3 | 23 |
import org.sonews.util.Pair; |
| chris@3 | 24 |
|
| chris@3 | 25 |
/** |
| chris@3 | 26 |
* A logical communication Channel is the a generic structural element for sets |
| chris@3 | 27 |
* of messages; e.g. a Newsgroup for a set of Articles. |
| chris@3 | 28 |
* A Channel can either be a real set of messages or an aggregated set of |
| chris@3 | 29 |
* several subsets. |
| chris@3 | 30 |
* @author Christian Lins |
| chris@3 | 31 |
* @since sonews/1.0 |
| chris@3 | 32 |
*/ |
| chris@3 | 33 |
public abstract class Channel |
| chris@3 | 34 |
{
|
| chris@3 | 35 |
|
| chris@3 | 36 |
/** |
| chris@3 | 37 |
* If this flag is set the Group is no real newsgroup but a mailing list |
| chris@3 | 38 |
* mirror. In that case every posting and receiving mails must go through |
| chris@3 | 39 |
* the mailing list gateway. |
| chris@3 | 40 |
*/ |
| chris@3 | 41 |
public static final int MAILINGLIST = 0x1; |
| chris@3 | 42 |
|
| chris@3 | 43 |
/** |
| chris@3 | 44 |
* If this flag is set the Group is marked as readonly and the posting |
| chris@3 | 45 |
* is prohibited. This can be useful for groups that are synced only in |
| chris@3 | 46 |
* one direction. |
| chris@3 | 47 |
*/ |
| chris@3 | 48 |
public static final int READONLY = 0x2; |
| chris@3 | 49 |
|
| chris@3 | 50 |
/** |
| chris@3 | 51 |
* If this flag is set the Group is marked as deleted and must not occur |
| chris@3 | 52 |
* in any output. The deletion is done lazily by a low priority daemon. |
| chris@3 | 53 |
*/ |
| chris@3 | 54 |
public static final int DELETED = 0x80; |
| chris@3 | 55 |
|
| chris@3 | 56 |
public static List<Channel> getAll() |
| chris@3 | 57 |
{
|
| chris@3 | 58 |
List<Channel> all = new ArrayList<Channel>(); |
| chris@3 | 59 |
|
| chris@3 | 60 |
/*List<Channel> agroups = AggregatedGroup.getAll(); |
| chris@3 | 61 |
if(agroups != null) |
| chris@3 | 62 |
{
|
| chris@3 | 63 |
all.addAll(agroups); |
| chris@3 | 64 |
}*/ |
| chris@3 | 65 |
|
| chris@3 | 66 |
List<Channel> groups = Group.getAll(); |
| chris@3 | 67 |
if(groups != null) |
| chris@3 | 68 |
{
|
| chris@3 | 69 |
all.addAll(groups); |
| chris@3 | 70 |
} |
| chris@3 | 71 |
|
| chris@3 | 72 |
return all; |
| chris@3 | 73 |
} |
| chris@3 | 74 |
|
| chris@3 | 75 |
public static Channel getByName(String name) |
| chris@3 | 76 |
{
|
| cli@13 | 77 |
return Group.getByName(name); |
| chris@3 | 78 |
} |
| chris@3 | 79 |
|
| chris@3 | 80 |
public abstract Article getArticle(long idx) |
| chris@3 | 81 |
throws StorageBackendException; |
| chris@3 | 82 |
|
| chris@3 | 83 |
public abstract List<Pair<Long, ArticleHead>> getArticleHeads( |
| chris@3 | 84 |
final long first, final long last) |
| chris@3 | 85 |
throws StorageBackendException; |
| chris@3 | 86 |
|
| chris@3 | 87 |
public abstract List<Long> getArticleNumbers() |
| chris@3 | 88 |
throws StorageBackendException; |
| chris@3 | 89 |
|
| chris@3 | 90 |
public abstract long getFirstArticleNumber() |
| chris@3 | 91 |
throws StorageBackendException; |
| chris@3 | 92 |
|
| chris@3 | 93 |
public abstract long getIndexOf(Article art) |
| chris@3 | 94 |
throws StorageBackendException; |
| chris@3 | 95 |
|
| chris@3 | 96 |
public abstract long getInternalID(); |
| chris@3 | 97 |
|
| chris@3 | 98 |
public abstract long getLastArticleNumber() |
| chris@3 | 99 |
throws StorageBackendException; |
| chris@3 | 100 |
|
| chris@3 | 101 |
public abstract String getName(); |
| chris@3 | 102 |
|
| chris@3 | 103 |
public abstract long getPostingsCount() |
| chris@3 | 104 |
throws StorageBackendException; |
| chris@3 | 105 |
|
| chris@3 | 106 |
public abstract boolean isDeleted(); |
| chris@3 | 107 |
|
| chris@3 | 108 |
public abstract boolean isWriteable(); |
| chris@3 | 109 |
|
| chris@3 | 110 |
} |