RESOLVED - issue BATCH-788: Remove flush/clear from ItemWriter

Done

spring-batch-samples/src/main/java/org/springframework/batch/sample/domain/football/internal/PlayerItemWriter.java

@@ -2,11 +2,11 @@ package org.springframework.batch.sample.domain.football.internal;
 
 import java.util.List;
 
-import org.springframework.batch.item.support.AbstractItemWriter;
+import org.springframework.batch.item.ItemWriter;
 import org.springframework.batch.sample.domain.football.Player;
 import org.springframework.batch.sample.domain.football.PlayerDao;
 
-public class PlayerItemWriter extends AbstractItemWriter<Player> {
+public class PlayerItemWriter implements ItemWriter<Player> {
 
 	private PlayerDao playerDao;
 

spring-batch-samples/src/main/java/org/springframework/batch/sample/domain/person/internal/PersonWriter.java

@@ -20,12 +20,12 @@ import java.util.List;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.springframework.batch.item.support.AbstractItemWriter;
+import org.springframework.batch.item.ItemWriter;
 import org.springframework.batch.sample.domain.person.Person;
 
 
 
-public class PersonWriter extends AbstractItemWriter<Person> {
+public class PersonWriter implements ItemWriter<Person> {
     private static Log log = LogFactory.getLog(PersonWriter.class);
  
     public void write(List<? extends Person> data) {

spring-batch-samples/src/main/java/org/springframework/batch/sample/domain/trade/internal/CustomerCreditIncreaseWriter.java

@@ -3,7 +3,7 @@ package org.springframework.batch.sample.domain.trade.internal;
 import java.math.BigDecimal;
 import java.util.List;
 
-import org.springframework.batch.item.support.AbstractItemWriter;
+import org.springframework.batch.item.ItemWriter;
 import org.springframework.batch.sample.domain.trade.CustomerCredit;
 import org.springframework.batch.sample.domain.trade.CustomerCreditDao;
 
@@ -12,7 +12,7 @@ import org.springframework.batch.sample.domain.trade.CustomerCreditDao;
  * 
  * @author Robert Kasanicky
  */
-public class CustomerCreditIncreaseWriter extends AbstractItemWriter<CustomerCredit> {
+public class CustomerCreditIncreaseWriter implements ItemWriter<CustomerCredit> {
 
 	public static final BigDecimal FIXED_AMOUNT = new BigDecimal("1000");
 

spring-batch-samples/src/main/java/org/springframework/batch/sample/domain/trade/internal/CustomerCreditUpdateWriter.java

@@ -18,11 +18,11 @@ package org.springframework.batch.sample.domain.trade.internal;
 
 import java.util.List;
 
-import org.springframework.batch.item.support.AbstractItemWriter;
+import org.springframework.batch.item.ItemWriter;
 import org.springframework.batch.sample.domain.trade.CustomerCredit;
 import org.springframework.batch.sample.domain.trade.CustomerCreditDao;
 
-public class CustomerCreditUpdateWriter extends AbstractItemWriter<CustomerCredit> {
+public class CustomerCreditUpdateWriter implements ItemWriter<CustomerCredit> {
 	private double creditFilter = 800;
 
 	private CustomerCreditDao dao;

spring-batch-samples/src/main/java/org/springframework/batch/sample/domain/trade/internal/CustomerUpdateWriter.java

@@ -18,7 +18,7 @@ package org.springframework.batch.sample.domain.trade.internal;
 
 import java.util.List;
 
-import org.springframework.batch.item.support.AbstractItemWriter;
+import org.springframework.batch.item.ItemWriter;
 import org.springframework.batch.sample.domain.trade.CustomerDebit;
 import org.springframework.batch.sample.domain.trade.CustomerDebitDao;
 import org.springframework.batch.sample.domain.trade.Trade;
@@ -29,7 +29,7 @@ import org.springframework.batch.sample.domain.trade.Trade;
  * 
  * @author Robert Kasanicky
  */
-public class CustomerUpdateWriter extends AbstractItemWriter<Trade> {
+public class CustomerUpdateWriter implements ItemWriter<Trade> {
 
 	private CustomerDebitDao dao;
 

spring-batch-samples/src/main/java/org/springframework/batch/sample/domain/trade/internal/TradeWriter.java

@@ -20,7 +20,7 @@ import java.util.List;
 
 import org.apache.commons.logging.Log;
 import org.apache.commons.logging.LogFactory;
-import org.springframework.batch.item.support.AbstractItemWriter;
+import org.springframework.batch.item.ItemWriter;
 import org.springframework.batch.sample.domain.trade.Trade;
 import org.springframework.batch.sample.domain.trade.TradeDao;
 
@@ -28,7 +28,7 @@ import org.springframework.batch.sample.domain.trade.TradeDao;
  * Delegates the actual writing to custom DAO delegate. Allows configurable
  * exception raising for testing skip and restart.
  */
-public class TradeWriter extends AbstractItemWriter<Trade> {
+public class TradeWriter implements ItemWriter<Trade> {
 	private static Log log = LogFactory.getLog(TradeWriter.class);
 
 	private TradeDao dao;

spring-batch-samples/src/main/java/org/springframework/batch/sample/support/DummyItemWriter.java

@@ -17,13 +17,13 @@ package org.springframework.batch.sample.support;
 
 import java.util.List;
 
-import org.springframework.batch.item.support.AbstractItemWriter;
+import org.springframework.batch.item.ItemWriter;
 
 /**
  * @author Dave Syer
  *
  */
-public class DummyItemWriter extends AbstractItemWriter<Object> {
+public class DummyItemWriter implements ItemWriter<Object> {
 
 	public void write(List<? extends Object> item) throws Exception {
 		// NO-OP

spring-batch-samples/src/main/java/org/springframework/batch/sample/support/ItemTrackingItemWriter.java

@@ -3,13 +3,13 @@ package org.springframework.batch.sample.support;
 import java.util.ArrayList;
 import java.util.List;
 
-import org.springframework.batch.item.support.AbstractItemWriter;
+import org.springframework.batch.item.ItemWriter;
 import org.springframework.batch.item.validator.ValidationException;
 
 /**
  * Remembers all items written - useful for testing.
  */
-public class ItemTrackingItemWriter<T> extends AbstractItemWriter<T> {
+public class ItemTrackingItemWriter<T> implements ItemWriter<T> {
 
 	private List<T> items = new ArrayList<T>();
 

spring-batch-samples/src/main/java/org/springframework/batch/sample/support/RetrySampleItemWriter.java

@@ -2,7 +2,7 @@ package org.springframework.batch.sample.support;
 
 import java.util.List;
 
-import org.springframework.batch.item.support.AbstractItemWriter;
+import org.springframework.batch.item.ItemWriter;
 
 /**
  * Simulates temporary output trouble - requires to retry 3 times to pass
@@ -10,7 +10,7 @@ import org.springframework.batch.item.support.AbstractItemWriter;
  * 
  * @author Robert Kasanicky
  */
-public class RetrySampleItemWriter<T> extends AbstractItemWriter<T> {
+public class RetrySampleItemWriter<T> implements ItemWriter<T> {
 
 	private int counter = 0;