Merge pull request #39 from kris7t/partial-interpretation

Implement partial interpretation based model generation

1 files changed, 52 insertions, 0 deletions

diff --git a/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/planning/operations/POperation.java b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/planning/operations/POperation.java
new file mode 100644
index 00000000..e71cf217
--- /dev/null
+++ b/subprojects/viatra-runtime/src/main/java/tools/refinery/viatra/runtime/matchers/planning/operations/POperation.java
@@ -0,0 +1,52 @@
+/*******************************************************************************
+ * Copyright (c) 2010-2014, Bergmann Gabor, 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.planning.operations;
+
+import java.util.Set;
+
+import tools.refinery.viatra.runtime.matchers.planning.SubPlan;
+import tools.refinery.viatra.runtime.matchers.psystem.PConstraint;
+import tools.refinery.viatra.runtime.matchers.util.Preconditions;
+
+/**
+ * Abstract superclass for representing a high-level query evaluation operation.
+ * 
+ *  <p> Subclasses correspond to various POperations modeled after relational algebra.  
+ * 
+ * @author Bergmann Gabor
+ *
+ */
+public abstract class POperation {
+
+    /**
+     * Newly enforced constraints
+     */
+    public abstract Set<? extends PConstraint> getDeltaConstraints();
+    
+    public abstract String getShortName();
+    
+    /**
+     * @return the number of SubPlans that must be specified as parents
+     */
+    public abstract int numParentSubPlans();
+    
+    /**
+     * Checks whether this constraint can be properly applied at the given SubPlan.
+     */
+    public void checkConsistency(SubPlan subPlan) {
+        Preconditions.checkArgument(this == subPlan.getOperation(), "POperation misalignment");
+        Preconditions.checkArgument(subPlan.getParentPlans().size() == numParentSubPlans(), "Incorrect number of parent SubPlans");
+    }
+        
+    @Override
+    public String toString() {
+        return getShortName();
+    }
+
+}