Refactored launching to allow exit codes to be returned to the launcher.

execution/src/main/resources/schema-db2.sql

@@ -26,7 +26,7 @@ CREATE TABLE BATCH_JOB_EXECUTION  (
 	START_TIME TIMESTAMP NOT NULL , 
 	END_TIME TIMESTAMP ,
 	STATUS VARCHAR(10),
-	EXIT_CODE BIGINT);
+	EXIT_CODE VARCHAR(250));
 
 CREATE TABLE BATCH_STEP  (
 	ID BIGINT  PRIMARY KEY ,
@@ -47,7 +47,7 @@ CREATE TABLE BATCH_STEP_EXECUTION  (
 	COMMIT_COUNT BIGINT , 
 	TASK_COUNT BIGINT , 
 	TASK_STATISTICS VARCHAR(250),
-	EXIT_CODE BIGINT,
+	EXIT_CODE VARCHAR(250),
 	EXIT_MESSAGE VARCHAR(250));
 
 CREATE SEQUENCE BATCH_STEP_EXECUTION_SEQ;