/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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.apache.tajo.storage;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.apache.tajo.catalog.Schema;
import org.apache.tajo.catalog.SortSpec;
import org.apache.tajo.common.TajoDataTypes.Type;
import org.apache.tajo.datum.Datum;
import org.apache.tajo.datum.DatumFactory;
import static org.junit.Assert.assertEquals;
public class TestTupleComparator {
@Before
public void setUp() throws Exception {
}
@After
public void tearDown() throws Exception {
}
@Test
public final void testCompare() {
Schema schema = new Schema();
schema.addColumn("col1", Type.INT4);
schema.addColumn("col2", Type.INT4);
schema.addColumn("col3", Type.INT4);
schema.addColumn("col4", Type.INT4);
schema.addColumn("col5", Type.TEXT);
Tuple tuple1 = new VTuple(5);
Tuple tuple2 = new VTuple(5);
tuple1.put(
new Datum[] {
DatumFactory.createInt4(9),
DatumFactory.createInt4(3),
DatumFactory.createInt4(33),
DatumFactory.createInt4(4),
DatumFactory.createText("abc")});
tuple2.put(
new Datum[] {
DatumFactory.createInt4(1),
DatumFactory.createInt4(25),
DatumFactory.createInt4(109),
DatumFactory.createInt4(4),
DatumFactory.createText("abd")});
SortSpec sortKey1 = new SortSpec(schema.getColumnByFQN("col4"), true, false);
SortSpec sortKey2 = new SortSpec(schema.getColumnByFQN("col5"), true, false);
TupleComparator tc = new TupleComparator(schema,
new SortSpec[] {sortKey1, sortKey2});
assertEquals(-1, tc.compare(tuple1, tuple2));
assertEquals(1, tc.compare(tuple2, tuple1));
}
}