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Diffstat (limited to 'subprojects/viatra-runtime-rete/src/main/java/tools/refinery/viatra/runtime/rete/index/MemoryNullIndexer.java')
-rw-r--r-- | subprojects/viatra-runtime-rete/src/main/java/tools/refinery/viatra/runtime/rete/index/MemoryNullIndexer.java | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/subprojects/viatra-runtime-rete/src/main/java/tools/refinery/viatra/runtime/rete/index/MemoryNullIndexer.java b/subprojects/viatra-runtime-rete/src/main/java/tools/refinery/viatra/runtime/rete/index/MemoryNullIndexer.java new file mode 100644 index 00000000..204fe433 --- /dev/null +++ b/subprojects/viatra-runtime-rete/src/main/java/tools/refinery/viatra/runtime/rete/index/MemoryNullIndexer.java | |||
@@ -0,0 +1,54 @@ | |||
1 | /******************************************************************************* | ||
2 | * Copyright (c) 2004-2008 Gabor Bergmann and Daniel Varro | ||
3 | * This program and the accompanying materials are made available under the | ||
4 | * terms of the Eclipse Public License v. 2.0 which is available at | ||
5 | * http://www.eclipse.org/legal/epl-v20.html. | ||
6 | * | ||
7 | * SPDX-License-Identifier: EPL-2.0 | ||
8 | *******************************************************************************/ | ||
9 | |||
10 | package tools.refinery.viatra.runtime.rete.index; | ||
11 | |||
12 | import java.util.Collection; | ||
13 | import java.util.List; | ||
14 | |||
15 | import tools.refinery.viatra.runtime.matchers.tuple.Tuple; | ||
16 | import tools.refinery.viatra.runtime.rete.network.Receiver; | ||
17 | import tools.refinery.viatra.runtime.rete.network.ReteContainer; | ||
18 | import tools.refinery.viatra.runtime.rete.network.Supplier; | ||
19 | |||
20 | /** | ||
21 | * Defines a trivial indexer that projects the contents of a memory-equipped node to the empty tuple, and can therefore | ||
22 | * save space. Can only exist in connection with a memory, and must be operated by another node. Do not attach parents | ||
23 | * directly! | ||
24 | * | ||
25 | * @author Gabor Bergmann | ||
26 | * @noimplement Rely on the provided implementations | ||
27 | * @noreference Use only via standard Node and Indexer interfaces | ||
28 | * @noinstantiate This class is not intended to be instantiated by clients. | ||
29 | */ | ||
30 | public class MemoryNullIndexer extends NullIndexer { | ||
31 | |||
32 | Collection<Tuple> memory; | ||
33 | |||
34 | /** | ||
35 | * @param reteContainer | ||
36 | * @param tupleWidth | ||
37 | * the width of the tuples of memoryNode | ||
38 | * @param memory | ||
39 | * the memory whose contents are to be null-indexed | ||
40 | * @param parent | ||
41 | * the parent node that owns the memory | ||
42 | */ | ||
43 | public MemoryNullIndexer(ReteContainer reteContainer, int tupleWidth, Collection<Tuple> memory, | ||
44 | Supplier parent, Receiver activeNode, List<ListenerSubscription> sharedSubscriptionList) { | ||
45 | super(reteContainer, tupleWidth, parent, activeNode, sharedSubscriptionList); | ||
46 | this.memory = memory; | ||
47 | } | ||
48 | |||
49 | @Override | ||
50 | protected Collection<Tuple> getTuples() { | ||
51 | return this.memory; | ||
52 | } | ||
53 | |||
54 | } | ||