Spring Batch With Schedular - spring-batch

Question

enter image description hereI am new to Spring Batch with Scheduler. Here my task is to read the data from one table and write it into another table.
I am randomly going through the blogs and different tutorials.
I don't know whether there is any direct approach read from database and write into database. I took this approach like
Job 1 : Reads the data from the db using JdbcCursorItemReader, writing the data into a txt file using FlatFileItemWriter.
Job 2: Read the data from the txt file using FlatFileItemReader, multiResourceItemReader and writing the data into another table using HibernateItemWriter.
I am using a scheduler and it is going to run the batch for every 20 sec.
In this approach for the first run it is working fine. For the second run(after 20 sec), I am updating the data in the database(base table) but it is not writing updated data into the file and database.
Here is my configuration & code`package com.cg.schedulers;
public class UserScheduler {
#Autowired
private JobLauncher launcher;
#Autowired
private Job userJob;
#Autowired
private Job userJob2;
private JobExecution execution1,execution2;
public void run() {
try {
execution1 = launcher.run(userJob, new JobParameters());
execution2 = launcher.run(userJob2, new JobParameters());
System.out.println("Execution status: " + execution1.getStatus());
System.out.println("Execution status: " + execution2.getStatus());
} catch (JobExecutionAlreadyRunningException e) {
e.printStackTrace();
} catch (JobRestartException e) {
e.printStackTrace();
} catch (JobInstanceAlreadyCompleteException e) {
e.printStackTrace();
} catch (JobParametersInvalidException e) {
e.printStackTrace();
}
}
}
Xml Configuration
<import resource="spring-batch1.xml" />
<import resource="springbatch-database.xml" />
<context:annotation-config/>
<context:component-scan base-package="com.cg"/>
<!-- Reading data from -->
<bean id="itemReader"
class="org.springframework.batch.item.database.JdbcCursorItemReader"
scope="step">
<property name="dataSource" ref="dataSource" />
<property name="sql" value="select UserId, UserName, Password from USER" />
<property name="rowMapper">
<bean class="com.cg.mapper.UserRowMapper" />
</property>
</bean>
<!-- ItemWriter writes a line into output flat file -->
<bean id="flatFileItemWriter" class="org.springframework.batch.item.file.FlatFileItemWriter"
scope="step">
<property name="resource" value="file:csv/User.txt" />
<property name="lineAggregator">
<!-- An Aggregator which converts an object into delimited list of strings -->
<bean
class="org.springframework.batch.item.file.transform.DelimitedLineAggregator">
<property name="delimiter" value="," />
<property name="fieldExtractor">
<!-- Extractor which returns the value of beans property through reflection -->
<bean
class="org.springframework.batch.item.file.transform.BeanWrapperFieldExtractor">
<property name="names" value="userId, username, password" />
</bean>
</property>
</bean>
</property>
</bean>
<!-- ItemReader reads a complete line one by one from input file -->
<bean id="flatFileItemReader" class="org.springframework.batch.item.file.FlatFileItemReader"
scope="step">
<property name="lineMapper">
<bean class="org.springframework.batch.item.file.mapping.DefaultLineMapper">
<property name="fieldSetMapper">
<!-- Mapper which maps each individual items in a record to properties
in POJO -->
<bean class="com.cg.mapper.UserFieldSetMapper" />
</property>
<property name="lineTokenizer">
<!-- A tokenizer class to be used when items in input record are separated
by specific characters -->
<bean
class="org.springframework.batch.item.file.transform.DelimitedLineTokenizer">
<property name="delimiter" value="," />
</bean>
</property>
</bean>
</property>
</bean>
<bean id="multiResourceItemReader"
class="org.springframework.batch.item.file.MultiResourceItemReader">
<property name="resources" value="classpath:csv/User.txt" />
<property name="delegate" ref="flatFileItemReader" />
</bean>
<!-- Optional JobExecutionListener to perform business logic before and
after the job -->
<bean id="jobListener" class="com.cg.support.UserItemListener" />
<!-- Optional ItemProcessor to perform business logic/filtering on the input
records -->
<bean id="itemProcessor1" class="com.cg.support.UserItemProcessor" />
<bean id="itemProcessor2" class="com.cg.support.UserItemProcessor2" />
<!-- ItemWriter which writes data to database -->
<bean id="databaseItemWriter"
class="org.springframework.batch.item.database.HibernateItemWriter">
<property name="sessionFactory" ref="sessionFactory" />
</bean>
<!-- Actual Job -->
<batch:job id="userJob">
<batch:step id="step1">
<batch:tasklet transaction-manager="transactionManager">
<batch:chunk reader="itemReader" writer="flatFileItemWriter"
processor="itemProcessor1" commit-interval="10" />
</batch:tasklet>
</batch:step>
<batch:listeners>
<batch:listener ref="jobListener" />
</batch:listeners>
</batch:job>
<batch:job id="userJob2">
<batch:step id="step2">
<batch:tasklet transaction-manager="transactionManager">
<batch:chunk reader="multiResourceItemReader" writer="databaseItemWriter"
processor="itemProcessor2" commit-interval="10" />
</batch:tasklet>
</batch:step>
</batch:job>
<bean id="myScheduler" class="com.cg.schedulers.UserScheduler"/>
<task:scheduled-tasks>
<task:scheduled ref="myScheduler" method="run" cron="*/20 * * * * *" />
</task:scheduled-tasks>
Please provide the direct approach if possible using hibernate.
[enter image description here][2]
Execution status: COMPLETED
Thanks,
Vamshi.