Preliminary support for purely Variable based dynamic issue sources

[simantics/platform.git] / bundles / org.simantics.issues.ui / src / org / simantics / issues / ui / DynamicIssueSourceRule.java

diff --git a/bundles/org.simantics.issues.ui/src/org/simantics/issues/ui/DynamicIssueSourceRule.java b/bundles/org.simantics.issues.ui/src/org/simantics/issues/ui/DynamicIssueSourceRule.java
new file mode 100644 (file)
index 0000000..3a62551
--- /dev/null
+++ b/bundles/org.simantics.issues.ui/src/org/simantics/issues/ui/DynamicIssueSourceRule.java
@@ -0,0 +1,33 @@
+package org.simantics.issues.ui;
+
+import java.util.Collection;
+import java.util.Collections;
+
+import org.simantics.browsing.ui.model.children.ChildRule;
+import org.simantics.db.ReadGraph;
+import org.simantics.db.Resource;
+import org.simantics.db.exception.DatabaseException;
+import org.simantics.issues.common.DynamicIssueSources;
+
+/**
+ * @author Tuukka Lehtonen
+ * @since 1.27
+ */
+public class DynamicIssueSourceRule implements ChildRule {
+
+    @Override
+    public boolean isCompatible(Class<?> contentType) {
+        return contentType.equals(Resource.class);
+    }
+
+    @Override
+    public Collection<?> getChildren(ReadGraph graph, Object parent) throws DatabaseException {
+        return graph.syncRequest(new DynamicIssueSources((Resource) parent));
+    }
+
+    @Override
+    public Collection<?> getParents(ReadGraph graph, Object child) throws DatabaseException {
+        return Collections.singleton(child);
+    }
+
+}