Added support for result set meta data

Added size limits for result sets
Updated/improved comments

git-svn-id: https://svn.alfresco.com/repos/alfresco-enterprise/alfresco/HEAD/root@2573 c4b6b30b-aa2e-2d43-bbcb-ca4b014f7261

source/java/org/alfresco/service/cmr/search/LimitBy.java

@@ -0,0 +1,11 @@
+package org.alfresco.service.cmr.search;
+
+/**
+ * Enum to describe how the maximum size of the returned result set should be determined.
+ * 
+ * @author Andy Hind
+ */
+public enum LimitBy
+{
+    UNLIMITED, FINAL_SIZE; // NUMBER_OF_PERMISSION_EVALUATIONS
+}