/*
* Copyright 2015, The Querydsl Team (http://www.querydsl.com/team)
*
* 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 com.querydsl.sql;
import static com.querydsl.sql.SQLExpressions.select;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import org.junit.Test;
import com.querydsl.core.types.*;
import com.querydsl.core.types.dsl.Expressions;
import com.querydsl.core.types.dsl.NumberExpression;
public class SQLServer2005TemplatesTest extends AbstractSQLTemplatesTest {
@Override
@Test
public void noFrom() {
query.getMetadata().setProjection(Expressions.ONE);
assertEquals("select 1", query.toString());
}
@Override
protected SQLTemplates createTemplates() {
return new SQLServer2005Templates();
}
@SuppressWarnings("unchecked")
@Test
@Override
public void union() {
NumberExpression<Integer> one = Expressions.ONE;
NumberExpression<Integer> two = Expressions.TWO;
NumberExpression<Integer> three = Expressions.THREE;
Path<Integer> col1 = Expressions.path(Integer.class, "col1");
Union union = query.union(
select(one.as(col1)),
select(two),
select(three));
assertEquals(
"(select 1 as col1)\n" +
"union\n" +
"(select 2)\n" +
"union\n" +
"(select 3)", union.toString());
}
@Test
public void limit() {
query.from(survey1).limit(5);
query.getMetadata().setProjection(survey1.id);
assertEquals("select top (?) survey1.ID from SURVEY survey1", query.toString());
}
@Test
public void modifiers() {
query.from(survey1).limit(5).offset(3);
query.orderBy(survey1.id.asc());
query.getMetadata().setProjection(survey1.id);
assertEquals("select * from (" +
" select survey1.ID, row_number() over (order by survey1.ID asc) as rn from SURVEY survey1) a " +
"where rn > ? and rn <= ? order by rn", query.toString());
}
@Test
public void modifiers_noOrder() {
query.from(survey1).limit(5).offset(3);
query.getMetadata().setProjection(survey1.id);
assertEquals("select * from (" +
" select survey1.ID, row_number() over (order by current_timestamp asc) as rn from SURVEY survey1) a " +
"where rn > ? and rn <= ? order by rn", query.toString());
}
@Test
public void nextVal() {
Operation<String> nextval = ExpressionUtils.operation(String.class, SQLOps.NEXTVAL, ConstantImpl.create("myseq"));
assertEquals("myseq.nextval", new SQLSerializer(new Configuration(new SQLServerTemplates())).handle(nextval).toString());
}
@Test
public void precedence() {
// 1 ~ (Bitwise NOT)
// 2 (Multiply), / (Division), % (Modulo)
int p2 = getPrecedence(Ops.MULT, Ops.DIV, Ops.MOD);
// 3 + (Positive), - (Negative), + (Add), (+ Concatenate), - (Subtract), & (Bitwise AND), ^ (Bitwise Exclusive OR), | (Bitwise OR)
int p3 = getPrecedence(Ops.NEGATE, Ops.ADD, Ops.SUB, Ops.CONCAT);
// 4 =, >, <, >=, <=, <>, !=, !>, !< (Comparison operators)
int p4 = getPrecedence(Ops.EQ, Ops.GT, Ops.LT, Ops.GOE, Ops.LOE, Ops.NE);
// 5 NOT
int p5 = getPrecedence(Ops.NOT);
// 6 AND
int p6 = getPrecedence(Ops.AND);
// 7 ALL, ANY, BETWEEN, IN, LIKE, OR, SOME
int p7 = getPrecedence(Ops.BETWEEN, Ops.IN, Ops.LIKE, Ops.LIKE_ESCAPE, Ops.OR);
// 8 = (Assignment)
assertTrue(p2 < p3);
assertTrue(p3 < p4);
assertTrue(p4 < p5);
assertTrue(p5 < p6);
assertTrue(p6 < p7);
}
}