X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.scl.compiler%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Felaboration%2Fquery%2Fcompilation%2FQueryConstraint.java;fp=bundles%2Forg.simantics.scl.compiler%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fcompiler%2Felaboration%2Fquery%2Fcompilation%2FQueryConstraint.java;h=32c4cd5475ed4dea0a81870faa7a6be6e85006cf;hb=969bd23cab98a79ca9101af33334000879fb60c5;hp=0000000000000000000000000000000000000000;hpb=866dba5cd5a3929bbeae85991796acb212338a08;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/query/compilation/QueryConstraint.java b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/query/compilation/QueryConstraint.java
new file mode 100644
index 000000000..32c4cd547
--- /dev/null
+++ b/bundles/org.simantics.scl.compiler/src/org/simantics/scl/compiler/elaboration/query/compilation/QueryConstraint.java
@@ -0,0 +1,31 @@
+package org.simantics.scl.compiler.elaboration.query.compilation;
+
+
+public abstract class QueryConstraint {
+    public int[] variables;
+    public long finalBoundVariables;
+    
+    public QueryConstraint(int[] variables) {
+        this.variables = variables;
+    }
+    
+    public QueryConstraint() {
+    }
+    
+    public long getVariableMask() {
+        long result = 0L;
+        for(int v : variables)
+            result |= 1 << v;
+        return result;
+    }
+    
+    public abstract boolean canBeSolvedFrom(long boundVariables);
+    public abstract double getSolutionCost(long boundVariables);
+    public abstract double getSolutionBranching(long boundVariables);
+    public abstract void generate(QueryCompilationContext context);
+    
+    public void generateAndUpdateCost(QueryCompilationContext context) {
+        generate(context);
+        context.updateCost(getSolutionBranching(finalBoundVariables), getSolutionCost(finalBoundVariables));
+    }
+}