/*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
package org.jdbi.v3.sqlobject;
import static java.util.Arrays.asList;
import static org.assertj.core.api.Assertions.assertThat;
import java.util.List;
import com.google.common.collect.ImmutableList;
import org.jdbi.v3.core.rule.H2DatabaseRule;
import org.jdbi.v3.core.Handle;
import org.jdbi.v3.core.Something;
import org.jdbi.v3.core.mapper.SomethingMapper;
import org.jdbi.v3.guava.GuavaCollectors;
import org.jdbi.v3.sqlobject.config.RegisterCollectorFactory;
import org.jdbi.v3.sqlobject.config.RegisterRowMapper;
import org.jdbi.v3.sqlobject.customizer.Bind;
import org.jdbi.v3.sqlobject.statement.SqlBatch;
import org.jdbi.v3.sqlobject.statement.SqlQuery;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
public class TestPaging
{
@Rule
public H2DatabaseRule dbRule = new H2DatabaseRule().withPlugin(new SqlObjectPlugin());
private Handle handle;
@Before
public void setUp() throws Exception
{
handle = dbRule.getSharedHandle();
}
@Test
public void pagingExample() throws Exception
{
Sql sql = handle.attach(Sql.class);
int[] rs = sql.insert(asList(1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13),
asList("Ami", "Brian", "Cora", "David", "Eric",
"Fernando", "Greta", "Holly", "Inigo", "Joy",
"Keith", "Lisa", "Molly"));
assertThat(rs).hasSize(13).containsOnly(1);
List<Something> page_one = sql.loadPage(-1, 5);
assertThat(page_one).containsExactly(new Something(1, "Ami"),
new Something(2, "Brian"),
new Something(3, "Cora"),
new Something(4, "David"),
new Something(5, "Eric"));
List<Something> page_two = sql.loadPage(page_one.get(page_one.size() - 1).getId(), 5);
assertThat(page_two).containsExactly(new Something(6, "Fernando"),
new Something(7, "Greta"),
new Something(8, "Holly"),
new Something(9, "Inigo"),
new Something(10, "Joy"));
}
@RegisterRowMapper(SomethingMapper.class)
@RegisterCollectorFactory(GuavaCollectors.Factory.class)
public interface Sql
{
@SqlBatch("insert into something (id, name) values (:id, :name)")
int[] insert(@Bind("id") Iterable<Integer> ids, @Bind("name") Iterable<String> names);
@SqlQuery("select id, name from something where id > :end_of_last_page order by id limit :size")
ImmutableList<Something> loadPage(@Bind("end_of_last_page") int last, @Bind("size") int size);
}
}