diff options
Diffstat (limited to 'store/src/main/java/org/eclipse/viatra/solver/data/query/building/DNFAtom.java')
-rw-r--r-- | store/src/main/java/org/eclipse/viatra/solver/data/query/building/DNFAtom.java | 33 |
1 files changed, 33 insertions, 0 deletions
diff --git a/store/src/main/java/org/eclipse/viatra/solver/data/query/building/DNFAtom.java b/store/src/main/java/org/eclipse/viatra/solver/data/query/building/DNFAtom.java new file mode 100644 index 00000000..05a3e3f8 --- /dev/null +++ b/store/src/main/java/org/eclipse/viatra/solver/data/query/building/DNFAtom.java | |||
@@ -0,0 +1,33 @@ | |||
1 | package org.eclipse.viatra.solver.data.query.building; | ||
2 | |||
3 | import java.util.Collection; | ||
4 | import java.util.Iterator; | ||
5 | import java.util.Map; | ||
6 | import java.util.Set; | ||
7 | |||
8 | public interface DNFAtom { | ||
9 | void unifyVariables(Map<String,Variable> variables); | ||
10 | static Variable unifyVariables(Map<String,Variable> unifiedVariables, Variable variable) { | ||
11 | if(variable != null) { | ||
12 | if(variable.isNamed() && unifiedVariables.containsKey(variable.getName())) { | ||
13 | return unifiedVariables.get(variable.getName()); | ||
14 | } | ||
15 | return variable; | ||
16 | } else { | ||
17 | return null; | ||
18 | } | ||
19 | } | ||
20 | void collectAllVariables(Set<Variable> variables); | ||
21 | static void addToCollection(Set<Variable> variables, Variable variable) { | ||
22 | if(variable != null) { | ||
23 | variables.add(variable); | ||
24 | } | ||
25 | } | ||
26 | static void addToCollection(Set<Variable> variables, Collection<Variable> variableCollection) { | ||
27 | Iterator<Variable> iterator = variableCollection.iterator(); | ||
28 | while(iterator.hasNext()) { | ||
29 | Variable variable = iterator.next(); | ||
30 | addToCollection(variables, variable); | ||
31 | } | ||
32 | } | ||
33 | } | ||