X-Git-Url: https://gerrit.simantics.org/r/gitweb?a=blobdiff_plain;f=bundles%2Forg.simantics.scl.runtime%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fruntime%2Fchr%2FFact.java;fp=bundles%2Forg.simantics.scl.runtime%2Fsrc%2Forg%2Fsimantics%2Fscl%2Fruntime%2Fchr%2FFact.java;h=f61d3079dd85d0d1198eb1048bb291c0204a3fde;hb=a8758de5bc19e5adb3f618d3038743a164f09912;hp=0000000000000000000000000000000000000000;hpb=12d9af17384d960b75d58c3935d2b7b46d93e87b;p=simantics%2Fplatform.git

diff --git a/bundles/org.simantics.scl.runtime/src/org/simantics/scl/runtime/chr/Fact.java b/bundles/org.simantics.scl.runtime/src/org/simantics/scl/runtime/chr/Fact.java
new file mode 100644
index 000000000..f61d3079d
--- /dev/null
+++ b/bundles/org.simantics.scl.runtime/src/org/simantics/scl/runtime/chr/Fact.java
@@ -0,0 +1,11 @@
+package org.simantics.scl.runtime.chr;
+
+public interface Fact {
+    /**
+     * Activates the fact with the given priority. The method returns
+     * the new priority of the fact or a negative number if the fact
+     * is deactivated.
+     */
+    int activate(Object context, int priority);
+    boolean isAlive();
+}