SingletonRead base class

refs #7196

Change-Id: Ib7751212d5cad181c74a1680962e4c84a43e4ebb

diff --git a/bundles/org.simantics.db.common/src/org/simantics/db/common/request/SingletonRead.java b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/SingletonRead.java
new file mode 100644 (file)
index 0000000..b24e856
--- /dev/null
+++ b/bundles/org.simantics.db.common/src/org/simantics/db/common/request/SingletonRead.java
@@ -0,0 +1,16 @@
+package org.simantics.db.common.request;
+
+public abstract class SingletonRead<R> extends GenericReadBase2<R> {
+
+       @Override
+       public boolean equals(Object arg0) {
+               if(arg0 == this) return true;
+               return getClass().equals(arg0.getClass());
+       }
+       
+       @Override
+       public int hashCode() {
+               return getClass().hashCode();
+       }
+       
+}