blob: e2d5bcee8e818f70b20be17aea391fe1e54b6658 (
plain) (
blame)
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
|
/*******************************************************************************
* Copyright (c) 2010-2016, Tamas Szabo, Istvan Rath and Daniel Varro
* This program and the accompanying materials are made available under the
* terms of the Eclipse Public License v. 2.0 which is available at
* http://www.eclipse.org/legal/epl-v20.html.
*
* SPDX-License-Identifier: EPL-2.0
*******************************************************************************/
package tools.refinery.viatra.runtime.matchers.context;
import tools.refinery.viatra.runtime.matchers.tuple.Tuple;
/**
* Implementations of this interface aid the query engine with the ordering of poset elements. This information is
* particularly important in the delete and re-derive evaluation mode because they let the engine identify monotone
* change pairs.
*
* @author Tamas Szabo
* @since 1.6
*/
public interface IPosetComparator {
/**
* Returns true if the 'left' tuple of poset elements is smaller or equal than the 'right' tuple of poset elements according to
* the partial order that this poset comparator employs.
*
* @param left
* the left tuple of poset elements
* @param right
* the right tuple of poset elements
* @return true if left is smaller or equal to right, false otherwise
*/
public boolean isLessOrEqual(final Tuple left, final Tuple right);
}
|
