diff --git a/asterix-transactions/pom.xml b/asterix-transactions/pom.xml
index 13a01a6..bb3647e 100644
--- a/asterix-transactions/pom.xml
+++ b/asterix-transactions/pom.xml
@@ -41,12 +41,12 @@
                     <debug>false</debug>
                     <arenaManagerTemplate>ArenaManager.java</arenaManagerTemplate>
                     <recordManagerTemplate>RecordManager.java</recordManagerTemplate>
-                    <recordTypes>
-                        <param>Job</param>
-                        <param>Request</param>
-                        <param>Resource</param>
-                    </recordTypes>
-                    <outputDir>${project.build.directory}/generated-sources/java/edu/uci/ics/asterix/transaction/management/service/locking</outputDir>
+                    <inputFiles>
+                        <param>src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/Job.json</param>
+                        <param>src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/Resource.json</param>
+                        <param>src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/Request.json</param>
+                    </inputFiles>
+                    <outputDir>generated-sources/java/edu/uci/ics/asterix/transaction/management/service/locking</outputDir>
                 </configuration>
                 <executions>
                     <execution>
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/Job.json b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/Job.json
new file mode 100644
index 0000000..a649b7c
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/Job.json
@@ -0,0 +1,24 @@
+{ 
+    "name" : "Job",
+    "fields" : [
+        {
+            "name" : "last holder",
+            "type" : "GLOBAL",
+            "initial" : "-1"
+        },
+        {
+            "name" : "last waiter",
+            "type" : "GLOBAL",
+            "initial" : "-1"
+        },
+        {
+            "name" : "last upgrader",
+            "type" : "GLOBAL",
+            "initial" : "-1"
+        },
+        {
+            "name" : "job id",
+            "type" : "INT"
+        }
+    ]
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/Request.json b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/Request.json
new file mode 100644
index 0000000..0c4fa71
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/Request.json
@@ -0,0 +1,29 @@
+{
+    "name" : "Request",
+    "fields" : [
+        {
+            "name" : "resource id",
+            "type" : "GLOBAL"
+        },
+        {
+            "name" : "job slot",
+            "type" : "GLOBAL"
+        },
+        {
+            "name" : "prev job request",
+            "type" : "GLOBAL"
+        },
+        {
+            "name" : "next job request",
+            "type" : "GLOBAL"
+        },
+        {
+            "name" : "next request",
+            "type" : "GLOBAL"
+        },
+        {
+            "name" : "lock mode",
+            "type" : "INT"
+        }
+    ]
+}
diff --git a/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/Resource.json b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/Resource.json
new file mode 100644
index 0000000..cceca3c
--- /dev/null
+++ b/asterix-transactions/src/main/java/edu/uci/ics/asterix/transaction/management/service/locking/Resource.json
@@ -0,0 +1,37 @@
+{
+    "name" : "Resource",
+    "fields" : [
+        {
+            "name" : "last holder",
+            "type" : "GLOBAL",
+            "initial" : "-1"
+        },
+        {
+            "name" : "first waiter",
+            "type" : "GLOBAL",
+            "initial" : "-1"
+        },
+        {
+            "name" : "first upgrader",
+            "type" : "GLOBAL",
+            "initial" : "-1"
+        },
+        {
+            "name" : "next",
+            "type" : "GLOBAL"
+        },
+        {
+            "name" : "max mode",
+            "type" : "INT",
+            "initial" : "LockMode.NL"
+        },
+        {
+            "name" : "dataset id",
+            "type" : "INT"
+        },
+        {
+            "name" : "pk hash val",
+            "type" : "INT"
+        }
+    ]
+}