/*
* 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
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*/
package org.apache.empire.db;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import java.sql.Connection;
import org.apache.empire.DBResource;
import org.apache.empire.DBResource.DB;
import org.apache.empire.db.DBCmdParam;
import org.junit.Rule;
import org.junit.Test;
public class PreparedStatementTest{
@Rule
public DBResource dbResource = new DBResource(DB.HSQL);
@Test
public void testPreparedStatement()
{
Connection conn = dbResource.getConnection();
DBDatabaseDriver driver = dbResource.newDriver();
CompanyDB db = new CompanyDB();
db.open(driver, conn);
DBSQLScript script = new DBSQLScript();
db.getCreateDDLScript(db.getDriver(), script);
script.run(db.getDriver(), conn, false);
DBRecord department = new DBRecord();
department.create(db.DEPARTMENT);
department.setValue(db.DEPARTMENT.NAME, "junit");
department.setValue(db.DEPARTMENT.BUSINESS_UNIT, "test");
department.update(conn);
int id = department.getInt(db.DEPARTMENT.ID);
assertTrue("Department add failed", id > 0);
// Define shortcuts for tables used - not necessary but convenient
CompanyDB.Departments DEP = db.DEPARTMENT;
// Define the query
DBCommand cmd = db.createCommand();
// Create parameters
DBCmdParam empIdParam = cmd.addParam(null);
// the previous line could be shorter
// DBCommandParam empIdParam = cmd.addCmdParam(id);
// create statement
cmd.select(DEP.getColumns());
cmd.where(DEP.ID.is(empIdParam));
// set param value
empIdParam.setValue(id);
// check command
assertNotNull(cmd.getParamValues());
assertTrue(cmd.getSelect().indexOf('?') > 0);
DBReader r = new DBReader();
try {
r.open(cmd, conn);
// must have one record
assertEquals(true, r.moveNext());
// Department Id must be correct
assertEquals(id, r.getInt(DEP.ID));
} finally {
r.close();
}
}
}