-
Notifications
You must be signed in to change notification settings - Fork 2.3k
/
CommandStream.java
39 lines (36 loc) · 1.43 KB
/
CommandStream.java
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
/*
* Copyright (c) 2002-2018 "Neo4j,"
* Neo4j Sweden AB [http://neo4j.com]
*
* This file is part of Neo4j.
*
* Neo4j is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
package org.neo4j.storageengine.api;
import java.io.IOException;
import org.neo4j.helpers.collection.Visitor;
/**
* A stream of commands from one or more transactions, that can be serialized to a transaction log or applied to a
* store.
*/
public interface CommandStream
{
/**
* Accepts a visitor into the commands making up this transaction.
* @param visitor {@link Visitor} which will see the commands.
* @return {@code true} if any {@link StorageCommand} visited returned {@code true}, otherwise {@code false}.
* @throws IOException if there were any problem reading the commands.
*/
boolean accept( Visitor<StorageCommand,IOException> visitor ) throws IOException;
}