X-Git-Url: http://source.jalview.org/gitweb/?a=blobdiff_plain;f=src%2Forg%2Fvamsas%2Fclient%2FVobjhash.java;fp=src%2Forg%2Fvamsas%2Fclient%2FVobjhash.java;h=116e2ff4c9f67fcb1b49a733d2afc0b70400c709;hb=f046d0f3bf72a74896cd6a3cbda4bab6b077ef57;hp=0000000000000000000000000000000000000000;hpb=4dc56e102f8959071f009385d75a89967e68a4f6;p=vamsas.git

diff --git a/src/org/vamsas/client/Vobjhash.java b/src/org/vamsas/client/Vobjhash.java
new file mode 100644
index 0000000..116e2ff
--- /dev/null
+++ b/src/org/vamsas/client/Vobjhash.java
@@ -0,0 +1,25 @@
+package org.vamsas.client;
+
+/**
+ * Holds information about Vobj instances that is held over between different writes to the document.
+ * @author JimP
+ *
+ */
+public class Vobjhash {
+  int hashvalue;
+  /**
+   * creates a record of the hash value for a vamsas document object
+   * @param tobemarshalled
+   */
+  public Vobjhash(Vobject tobemarshalled) {
+    hashvalue = tobemarshalled.get__last_hash();
+  }
+  /**
+   * compares the old hash value with the unmarshalled object's most recently computed hash value.
+   * @param unmarshalled
+   * @return true if the hash values differ
+   */
+  public boolean isUpdated(Vobject unmarshalled) {
+    return hashvalue==unmarshalled.get__last_hash();
+  }
+}