From 59485fe39229b961e2e9fd9acf18e5f3383d5c2a Mon Sep 17 00:00:00 2001
From: akwizgran <akwizgran@users.sourceforge.net>
Date: Wed, 26 Oct 2011 18:05:49 +0100
Subject: [PATCH] Added comments for columns that may be null.
---
components/net/sf/briar/db/JdbcDatabase.java | 14 +++++++-------
1 file changed, 7 insertions(+), 7 deletions(-)
diff --git a/components/net/sf/briar/db/JdbcDatabase.java b/components/net/sf/briar/db/JdbcDatabase.java
index 1a4b57ca3e..cafa95ec9f 100644
--- a/components/net/sf/briar/db/JdbcDatabase.java
+++ b/components/net/sf/briar/db/JdbcDatabase.java
@@ -46,7 +46,7 @@ abstract class JdbcDatabase implements Database<Connection> {
"CREATE TABLE subscriptions"
+ " (groupId HASH NOT NULL,"
+ " groupName VARCHAR NOT NULL,"
- + " groupKey BINARY,"
+ + " groupKey BINARY," // Null for unrestricted groups
+ " start BIGINT NOT NULL,"
+ " PRIMARY KEY (groupId))";
@@ -59,17 +59,17 @@ abstract class JdbcDatabase implements Database<Connection> {
private static final String CREATE_MESSAGES =
"CREATE TABLE messages"
+ " (messageId HASH NOT NULL,"
- + " parentId HASH,"
- + " groupId HASH,"
- + " authorId HASH,"
+ + " parentId HASH," // Null for the first message in a thread
+ + " groupId HASH," // Null for private messages
+ + " authorId HASH," // Null for private or anonymous messages
+ " subject VARCHAR NOT NULL,"
+ " timestamp BIGINT NOT NULL,"
+ " length INT NOT NULL,"
+ " bodyStart INT NOT NULL,"
+ " bodyLength INT NOT NULL,"
+ " raw BLOB NOT NULL,"
- + " sendability INT,"
- + " contactId INT,"
+ + " sendability INT," // Null for private messages
+ + " contactId INT," // Null for group messages
+ " PRIMARY KEY (messageId),"
+ " FOREIGN KEY (groupId) REFERENCES subscriptions (groupId)"
+ " ON DELETE CASCADE,"
@@ -114,7 +114,7 @@ abstract class JdbcDatabase implements Database<Connection> {
+ " (contactId INT NOT NULL,"
+ " groupId HASH NOT NULL,"
+ " groupName VARCHAR NOT NULL,"
- + " groupKey BINARY,"
+ + " groupKey BINARY," // Null for unrestricted groups
+ " start BIGINT NOT NULL,"
+ " PRIMARY KEY (contactId, groupId),"
+ " FOREIGN KEY (contactId) REFERENCES contacts (contactId)"
--
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