BATCH-1728: Initial commit of Spring Data ItemReader/ItemWriter implementations

spring-batch-samples/src/main/java/org/springframework/batch/sample/data/CustomerCreditRepository.java

@@ -0,0 +1,12 @@
+package org.springframework.batch.sample.data;
+
+import java.math.BigDecimal;
+
+import org.springframework.batch.sample.domain.trade.CustomerCredit;
+import org.springframework.data.domain.Page;
+import org.springframework.data.domain.Pageable;
+import org.springframework.data.repository.PagingAndSortingRepository;
+
+public interface CustomerCreditRepository extends PagingAndSortingRepository<CustomerCredit, Long>{
+	Page<CustomerCredit> findByCreditGreaterThan(BigDecimal credit, Pageable request);
+}

spring-batch-samples/src/main/resources/jobs/iosample/repository.xml

@@ -0,0 +1,61 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<beans xmlns="http://www.springframework.org/schema/beans"
+	xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+    xmlns:jpa="http://www.springframework.org/schema/data/jpa"
+	xsi:schemaLocation="http://www.springframework.org/schema/beans http://www.springframework.org/schema/beans/spring-beans.xsd
+	 					http://www.springframework.org/schema/data/jpa http://www.springframework.org/schema/data/jpa/spring-jpa.xsd">
+
+	<jpa:repositories base-package="org.springframework.batch.sample.data"/>
+
+	<bean id="itemReader"
+		class="org.springframework.batch.item.data.RepositoryItemReader" scope="step">
+		<property name="pageSize" value="2"/>
+		<property name="methodName" value="findByCreditGreaterThan"/>
+		<property name="repository" ref="customerCreditRepository"/>
+		<property name="arguments">
+			<list>
+				<value>#{new java.math.BigDecimal(jobParameters[credit])}</value>
+			</list>
+		</property>
+ 		<property name="sort">
+			<map>
+				<entry key="id" value="ASC"/>
+			</map>
+ 		</property>
+	</bean>
+
+	<bean id="itemWriter"
+		class="org.springframework.batch.item.data.RepositoryItemWriter">
+		<property name="methodName" value="save"/>
+		<property name="repository" ref="customerCreditRepository"/>
+	</bean>
+	
+	<bean id="transactionManager" class="org.springframework.orm.jpa.JpaTransactionManager">
+		<property name="entityManagerFactory" ref="entityManagerFactory" />
+	</bean>
+
+	<bean id="entityManagerFactory"
+		class="org.springframework.orm.jpa.LocalContainerEntityManagerFactoryBean">
+		<property name="dataSource" ref="dataSource" />
+		<property name="persistenceUnitName" value="customerCredit" />
+		<property name="jpaVendorAdapter">
+			<bean class="org.springframework.orm.jpa.vendor.HibernateJpaVendorAdapter">
+				<property name="showSql" value="false" />
+			</bean>
+		</property>
+		<property name="jpaDialect">
+			<bean class="org.springframework.orm.jpa.vendor.HibernateJpaDialect" />
+		</property>
+	</bean>
+
+	<!--
+		Hibernate JPA dialect does not support custom tx isolation levels =>
+		overwrite with ISOLATION_DEFAULT
+	-->
+	<bean id="jobRepository"
+		class="org.springframework.batch.core.repository.support.JobRepositoryFactoryBean">
+		<property name="isolationLevelForCreate" value="ISOLATION_DEFAULT" />
+		<property name="dataSource" ref="dataSource" />
+		<property name="transactionManager" ref="transactionManager" />
+	</bean>
+</beans>

spring-batch-samples/src/test/java/org/springframework/batch/sample/iosample/RepositoryFunctionalTests.java

@@ -0,0 +1,31 @@
+package org.springframework.batch.sample.iosample;
+
+import org.junit.runner.RunWith;
+import org.springframework.batch.core.JobParameters;
+import org.springframework.batch.core.JobParametersBuilder;
+import org.springframework.batch.core.StepExecution;
+import org.springframework.batch.core.scope.context.StepSynchronizationManager;
+import org.springframework.batch.item.ItemReader;
+import org.springframework.batch.sample.domain.trade.CustomerCredit;
+import org.springframework.batch.test.MetaDataInstanceFactory;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(locations = "/jobs/iosample/repository.xml")
+public class RepositoryFunctionalTests extends AbstractIoSampleTests {
+
+	@Override
+	protected void pointReaderToOutput(ItemReader<CustomerCredit> reader) {
+		JobParameters jobParameters = new JobParametersBuilder(super.getUniqueJobParameters()).addDouble("credit", 0.)
+				.toJobParameters();
+		StepExecution stepExecution = MetaDataInstanceFactory.createStepExecution(jobParameters);
+		StepSynchronizationManager.close();
+		StepSynchronizationManager.register(stepExecution);
+	}
+
+	@Override
+	protected JobParameters getUniqueJobParameters() {
+		return new JobParametersBuilder(super.getUniqueJobParameters()).addString("credit", "10000").toJobParameters();
+	}
+}