How to use

setDelete

method

in

org.springframework.batch.item.data.MongoItemWriter

/**
 * Validates and builds a {@link MongoItemWriter}.
 *
 * @return a {@link MongoItemWriter}
 */
public MongoItemWriter<T> build() {
  Assert.notNull(this.template, "template is required.");
  MongoItemWriter<T> writer = new MongoItemWriter<>();
  writer.setTemplate(this.template);
  writer.setDelete(this.delete);
  writer.setCollection(this.collection);
  return writer;
}

@Test
public void testRemoveNoTransactionNoCollection() throws Exception {
  writer.setDelete(true);
  List<Object> items = new ArrayList<Object>() {{
    add(new Object());
    add(new Object());
  }};
  writer.write(items);
  verify(template).remove(items.get(0));
  verify(template).remove(items.get(1));
}

@Test
public void testRemoveNoTransactionWithCollection() throws Exception {
  writer.setDelete(true);
  List<Object> items = new ArrayList<Object>() {{
    add(new Object());
    add(new Object());
  }};
  writer.setCollection("collection");
  writer.write(items);
  verify(template).remove(items.get(0), "collection");
  verify(template).remove(items.get(1), "collection");
}

/**
 * Validates and builds a {@link MongoItemWriter}.
 *
 * @return a {@link MongoItemWriter}
 */
public MongoItemWriter<T> build() {
  Assert.notNull(this.template, "template is required.");
  MongoItemWriter<T> writer = new MongoItemWriter<>();
  writer.setTemplate(this.template);
  writer.setDelete(this.delete);
  writer.setCollection(this.collection);
  return writer;
}