X-Git-Url: https://gerrit.simantics.org/r/gitweb?p=simantics%2Fplatform.git;a=blobdiff_plain;f=bundles%2Forg.simantics.db.layer0%2Fsrc%2Forg%2Fsimantics%2Fdb%2Flayer0%2Fchangeset%2FChangeVisitor.java;fp=bundles%2Forg.simantics.db.layer0%2Fsrc%2Forg%2Fsimantics%2Fdb%2Flayer0%2Fchangeset%2FChangeVisitor.java;h=282378b054e1132da67b6078de3af1564b8c3858;hp=0000000000000000000000000000000000000000;hb=969bd23cab98a79ca9101af33334000879fb60c5;hpb=866dba5cd5a3929bbeae85991796acb212338a08

diff --git a/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/changeset/ChangeVisitor.java b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/changeset/ChangeVisitor.java
new file mode 100644
index 000000000..282378b05
--- /dev/null
+++ b/bundles/org.simantics.db.layer0/src/org/simantics/db/layer0/changeset/ChangeVisitor.java
@@ -0,0 +1,15 @@
+package org.simantics.db.layer0.changeset;
+
+import org.simantics.db.ReadGraph;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.db.layer0.genericrelation.DependencyChanges.Change;
+
+public interface ChangeVisitor {
+    /**
+     * {@link MetadataUtils#visitDependencyChangesBetween}
+     * calls this method for every change found between given range.
+     * The flag {@code inverted} tells whether the change is actually
+     * undone instead of done.
+     */
+    void visit(ReadGraph graph, Change change, boolean inverted) throws DatabaseException;
+}