diff options
Diffstat (limited to 'subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/psystem/aggregations/BoundAggregator.java')
-rw-r--r-- | subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/psystem/aggregations/BoundAggregator.java | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/psystem/aggregations/BoundAggregator.java b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/psystem/aggregations/BoundAggregator.java new file mode 100644 index 00000000..e6972544 --- /dev/null +++ b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/psystem/aggregations/BoundAggregator.java | |||
@@ -0,0 +1,61 @@ | |||
1 | /******************************************************************************* | ||
2 | * Copyright (c) 2010-2016, Gabor Bergmann, IncQueryLabs Ltd. | ||
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 | package tools.refinery.viatra.runtime.matchers.psystem.aggregations; | ||
10 | |||
11 | import tools.refinery.viatra.runtime.matchers.context.IInputKey; | ||
12 | import tools.refinery.viatra.runtime.matchers.context.common.JavaTransitiveInstancesKey; | ||
13 | |||
14 | /** | ||
15 | * Augments an aggregator operator with type bindings for the type of values being aggregated and the aggregate result. | ||
16 | * <p> In case of <em>count</em>, the operator should be null. | ||
17 | * @author Gabor Bergmann | ||
18 | * @since 1.4 | ||
19 | */ | ||
20 | public class BoundAggregator { | ||
21 | private final IMultisetAggregationOperator<?, ?, ?> operator; | ||
22 | private final Class<?> domainType; | ||
23 | private final Class<?> aggregateResultType; | ||
24 | |||
25 | public BoundAggregator(IMultisetAggregationOperator<?, ?, ?> operator, | ||
26 | Class<?> domainType, | ||
27 | Class<?> aggregateResultType) { | ||
28 | super(); | ||
29 | this.operator = operator; | ||
30 | this.domainType = domainType; | ||
31 | this.aggregateResultType = aggregateResultType; | ||
32 | } | ||
33 | |||
34 | public IMultisetAggregationOperator<?, ?, ?> getOperator() { | ||
35 | return operator; | ||
36 | } | ||
37 | |||
38 | public Class<?> getDomainType() { | ||
39 | return domainType; | ||
40 | } | ||
41 | |||
42 | public Class<?> getAggregateResultType() { | ||
43 | return aggregateResultType; | ||
44 | } | ||
45 | |||
46 | public IInputKey getDomainTypeAsInputKey() { | ||
47 | return toJavaInputKey(domainType); | ||
48 | } | ||
49 | |||
50 | public IInputKey getAggregateResultTypeAsInputKey() { | ||
51 | return toJavaInputKey(aggregateResultType); | ||
52 | } | ||
53 | |||
54 | private static IInputKey toJavaInputKey(Class<?> type) { | ||
55 | if (type==null) { | ||
56 | return null; | ||
57 | } else { | ||
58 | return new JavaTransitiveInstancesKey(type); | ||
59 | } | ||
60 | } | ||
61 | } | ||