querydsl/querydsl-sql/src/test/java/com/mysema/query/Connections.java
2012-12-16 23:03:20 +02:00

756 lines
26 KiB
Java

/*
* Copyright 2011, Mysema Ltd
*
* 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.mysema.query;
import java.sql.Connection;
import java.sql.Date;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Time;
import org.hsqldb.types.Types;
import com.mysema.query.ddl.CreateTableClause;
import com.mysema.query.ddl.DropTableClause;
import com.mysema.query.sql.DerbyTemplates;
import com.mysema.query.sql.H2Templates;
import com.mysema.query.sql.HSQLDBTemplates;
import com.mysema.query.sql.OracleTemplates;
import com.mysema.query.sql.PostgresTemplates;
import com.mysema.query.sql.SQLServerTemplates;
import com.mysema.query.sql.SQLTemplates;
/**
* @author tiwe
*
*/
public final class Connections {
public static final int TEST_ROW_COUNT = 100;
private static ThreadLocal<Connection> connHolder = new ThreadLocal<Connection>();
private static ThreadLocal<Target> targetHolder = new ThreadLocal<Target>();
private static ThreadLocal<SQLTemplates> templatesHolder = new ThreadLocal<SQLTemplates>();
// datetest
private static final String CREATE_TABLE_DATETEST = "create table DATE_TEST(DATE_TEST date)";
// survey
private static final String CREATE_TABLE_SURVEY =
"create table SURVEY(ID int auto_increment, NAME varchar(30), NAME2 varchar(30))";
// test
private static final String CREATE_TABLE_TEST = "create table TEST(NAME varchar(255))";
// timetest
private static final String CREATE_TABLE_TIMETEST = "create table TIME_TEST(TIME_TEST time)";
// employee
private static final String INSERT_INTO_EMPLOYEE = "insert into EMPLOYEE " +
"(ID, FIRSTNAME, LASTNAME, SALARY, DATEFIELD, TIMEFIELD, SUPERIOR_ID) " +
"values (?,?,?,?,?,?,?)";
private static final String INSERT_INTO_TEST_VALUES = "insert into TEST values(?)";
private static ThreadLocal<Statement> stmtHolder = new ThreadLocal<Statement>();
private static boolean derbyInited, sqlServerInited, h2Inited, hsqlInited, mysqlInited, cubridInited, oracleInited, postgresInited, sqliteInited;
public static void close() throws SQLException{
if (stmtHolder.get() != null){
stmtHolder.get().close();
}
if (connHolder.get() != null){
connHolder.get().close();
}
}
public static Connection getConnection(){
return connHolder.get();
}
public static Target getTarget() {
return targetHolder.get();
}
public static SQLTemplates getTemplates() {
return templatesHolder.get();
}
public static void setTemplates(SQLTemplates templates) {
templatesHolder.set(templates);
}
private static Connection getDerby() throws SQLException, ClassNotFoundException {
Class.forName("org.apache.derby.jdbc.EmbeddedDriver");
String url = "jdbc:derby:target/demoDB;create=true";
return DriverManager.getConnection(url, "", "");
}
private static Connection getHSQL() throws SQLException, ClassNotFoundException {
Class.forName("org.hsqldb.jdbcDriver");
String url = "jdbc:hsqldb:target/tutorial";
return DriverManager.getConnection(url, "sa", "");
}
private static Connection getH2() throws SQLException, ClassNotFoundException{
Class.forName("org.h2.Driver");
String url = "jdbc:h2:target/h2";
return DriverManager.getConnection(url, "sa", "");
}
private static Connection getMySQL() throws SQLException, ClassNotFoundException {
Class.forName("com.mysql.jdbc.Driver");
String url = "jdbc:mysql://localhost:3306/querydsl";
return DriverManager.getConnection(url, "querydsl", "querydsl");
}
private static Connection getOracle() throws SQLException, ClassNotFoundException{
Class.forName("oracle.jdbc.driver.OracleDriver");
String url = "jdbc:oracle:thin:@localhost:1521:xe";
return DriverManager.getConnection(url, "querydsl", "querydsl");
}
private static Connection getPostgres() throws ClassNotFoundException, SQLException{
Class.forName("org.postgresql.Driver");
String url = "jdbc:postgresql://localhost:5432/querydsl";
return DriverManager.getConnection(url, "querydsl","querydsl");
}
private static Connection getSQLServer() throws ClassNotFoundException, SQLException{
Class.forName("net.sourceforge.jtds.jdbc.Driver");
String url = "jdbc:jtds:sqlserver://localhost:1433/querydsl";
return DriverManager.getConnection(url, "querydsl","querydsl");
}
private static Connection getCubrid() throws ClassNotFoundException, SQLException {
Class.forName("cubrid.jdbc.driver.CUBRIDDriver");
String url = "jdbc:cubrid:localhost:30000:demodb:public::";
return DriverManager.getConnection(url);
}
private static Connection getSQLite() throws SQLException, ClassNotFoundException {
//System.setProperty("sqlite.purejava", "true");
Class.forName("org.sqlite.JDBC");
return DriverManager.getConnection("jdbc:sqlite:target/sample.db");
}
private static CreateTableClause createTable(SQLTemplates templates, String table){
return new CreateTableClause(connHolder.get(), templates, table);
}
public static void dropTable(SQLTemplates templates, String table) throws SQLException{
new DropTableClause(connHolder.get(), templates, table).execute();
}
public static void dropType(Statement stmt, String type) throws SQLException {
try {
stmt.execute("drop type " + type);
} catch (SQLException e) {
if (!e.getMessage().contains("does not exist")) {
throw e;
}
}
}
public static Statement getStatement(){
return stmtHolder.get();
}
private static void createEmployeeTable(SQLTemplates templates) {
createTable(templates, "EMPLOYEE")
.column("ID", Integer.class)
.column("FIRSTNAME", String.class).size(50)
.column("LASTNAME", String.class).size(50)
.column("SALARY",Double.class)
.column("DATEFIELD",Date.class)
.column("TIMEFIELD",Time.class)
.column("SUPERIOR_ID",Integer.class)
.primaryKey("PK_EMPLOYEE", "ID")
.foreignKey("FK_SUPERIOR","SUPERIOR_ID").references("EMPLOYEE","ID")
.execute();
}
public static void initDerby() throws SQLException, ClassNotFoundException {
targetHolder.set(Target.DERBY);
SQLTemplates templates = new DerbyTemplates();
Connection c = getDerby();
connHolder.set(c);
Statement stmt = c.createStatement();
stmtHolder.set(stmt);
if (derbyInited){
return;
}
// types
dropType(stmt, "price restrict");
stmt.execute("create type price external name 'com.example.Price' language java");
// survey
dropTable(templates, "SURVEY");
stmt.execute("create table SURVEY(" +
"ID int generated by default as identity(start with 1, increment by 1), " +
"NAME varchar(30)," +
"NAME2 varchar(30))");
stmt.execute("insert into SURVEY values (1,'Hello World','Hello')");
// test
dropTable(templates, "TEST");
stmt.execute(CREATE_TABLE_TEST);
stmt.execute("create index test_name on test(name)");
PreparedStatement pstmt = c.prepareStatement(INSERT_INTO_TEST_VALUES);
try{
for (int i = 0; i < TEST_ROW_COUNT; i++) {
pstmt.setString(1, "name" + i);
pstmt.addBatch();
}
pstmt.executeBatch();
}finally{
pstmt.close();
}
// employee
dropTable(templates, "EMPLOYEE");
createEmployeeTable(templates);
addEmployees(INSERT_INTO_EMPLOYEE);
// date_test and time_test
dropTable(templates, "TIME_TEST");
stmt.execute(CREATE_TABLE_TIMETEST);
dropTable(templates, "DATE_TEST");
stmt.execute(CREATE_TABLE_DATETEST);
derbyInited = true;
}
public static void initSQLServer() throws SQLException, ClassNotFoundException {
targetHolder.set(Target.SQLSERVER);
SQLTemplates templates = new SQLServerTemplates();
Connection c = getSQLServer();
connHolder.set(c);
Statement stmt = c.createStatement();
stmtHolder.set(stmt);
if (sqlServerInited){
return;
}
// survey
dropTable(templates, "SURVEY");
stmt.execute(CREATE_TABLE_SURVEY);
stmt.execute("insert into SURVEY values (1, 'Hello World')");
// test
dropTable(templates, "TEST");
stmt.execute(CREATE_TABLE_TEST);
PreparedStatement pstmt = c.prepareStatement(INSERT_INTO_TEST_VALUES);
try{
for (int i = 0; i < TEST_ROW_COUNT; i++) {
pstmt.setString(1, "name" + i);
pstmt.addBatch();
}
pstmt.executeBatch();
}finally{
pstmt.close();
}
// employee
dropTable(templates, "EMPLOYEE");
createEmployeeTable(templates);
addEmployees(INSERT_INTO_EMPLOYEE);
// date_test and time_test
dropTable(templates, "TIME_TEST");
dropTable(templates, "DATE_TEST");
stmt.execute(CREATE_TABLE_TIMETEST);
stmt.execute(CREATE_TABLE_DATETEST);
sqlServerInited = true;
}
public static void initH2() throws SQLException, ClassNotFoundException{
targetHolder.set(Target.H2);
SQLTemplates templates = new H2Templates();
Connection c = getH2();
connHolder.set(c);
Statement stmt = c.createStatement();
stmtHolder.set(stmt);
if (h2Inited){
return;
}
// qtest
stmt.execute("drop table QTEST if exists");
stmt.execute("create table QTEST (ID int IDENTITY(1,1) NOT NULL, C1 int NULL)");
// survey
stmt.execute("drop table SURVEY if exists");
stmt.execute(CREATE_TABLE_SURVEY);
stmt.execute("insert into SURVEY values (1, 'Hello World','Hello');");
stmt.execute("alter table SURVEY alter column id int auto_increment");
// test
stmt.execute("drop table TEST if exists");
stmt.execute(CREATE_TABLE_TEST);
PreparedStatement pstmt = c.prepareStatement(INSERT_INTO_TEST_VALUES);
try{
for (int i = 0; i < TEST_ROW_COUNT; i++) {
pstmt.setString(1, "name" + i);
pstmt.addBatch();
}
pstmt.executeBatch();
}finally{
pstmt.close();
}
// employee
stmt.execute("drop table EMPLOYEE if exists");
createEmployeeTable(templates);
stmt.execute("alter table EMPLOYEE alter column id int auto_increment");
addEmployees(INSERT_INTO_EMPLOYEE);
// date_test and time_test
stmt.execute("drop table TIME_TEST if exists");
stmt.execute("drop table DATE_TEST if exists");
stmt.execute(CREATE_TABLE_TIMETEST);
stmt.execute(CREATE_TABLE_DATETEST);
h2Inited = true;
}
public static void initSQLite() throws SQLException, ClassNotFoundException{
targetHolder.set(Target.SQLITE);
// SQLTemplates templates = new SQLiteTemplates();
Connection c = getSQLite();
connHolder.set(c);
Statement stmt = c.createStatement();
stmtHolder.set(stmt);
if (sqliteInited){
return;
}
// qtest
stmt.execute("drop table if exists QTEST");
stmt.execute("create table QTEST (ID int IDENTITY(1,1) NOT NULL, C1 int NULL)");
// survey
stmt.execute("drop table if exists SURVEY");
stmt.execute("create table SURVEY(ID int auto_increment, " +
"NAME varchar(30)," +
"NAME2 varchar(30)," +
"constraint suryey_pk primary key(ID))");
stmt.execute("insert into SURVEY values (1,'Hello World','Hello');");
// test
stmt.execute("drop table if exists TEST");
stmt.execute(CREATE_TABLE_TEST);
PreparedStatement pstmt = c.prepareStatement(INSERT_INTO_TEST_VALUES);
try{
for (int i = 0; i < TEST_ROW_COUNT; i++) {
pstmt.setString(1, "name" + i);
pstmt.addBatch();
}
pstmt.executeBatch();
}finally{
pstmt.close();
}
// employee
stmt.execute("drop table if exists EMPLOYEE");
stmt.execute("create table EMPLOYEE ( " +
"ID INT AUTO_INCREMENT, " +
"FIRSTNAME VARCHAR(50), " +
"LASTNAME VARCHAR(50), " +
"SALARY DECIMAL, " +
"DATEFIELD DATE, " +
"TIMEFIELD TIME, " +
"SUPERIOR_ID INT, " +
"CONSTRAINT PK_EMPLOYEE PRIMARY KEY(ID),"+
"CONSTRAINT FK_SUPERIOR FOREIGN KEY(SUPERIOR_ID) REFERENCES EMPLOYEE(ID) " +
")");
addEmployees(INSERT_INTO_EMPLOYEE);
// date_test and time_test
stmt.execute("drop table if exists TIME_TEST");
stmt.execute("drop table if exists DATE_TEST");
stmt.execute(CREATE_TABLE_TIMETEST);
stmt.execute(CREATE_TABLE_DATETEST);
sqliteInited = true;
}
public static void initHSQL() throws SQLException, ClassNotFoundException{
targetHolder.set(Target.HSQLDB);
SQLTemplates templates = new HSQLDBTemplates();
Connection c = getHSQL();
connHolder.set(c);
Statement stmt = c.createStatement();
stmtHolder.set(stmt);
if (hsqlInited){
return;
}
// dual
stmt.execute("drop table DUAL if exists");
stmt.execute("create table DUAL ( DUMMY varchar(1) )");
stmt.execute("insert into DUAL (DUMMY) values ('X')");
// survey
stmt.execute("drop table SURVEY if exists");
//stmt.execute(CREATE_TABLE_SURVEY);
stmt.execute("create table SURVEY(" +
"ID int generated by default as identity, " +
"NAME varchar(30)," +
"NAME2 varchar(30))");
stmt.execute("insert into SURVEY values (1, 'Hello World', 'Hello')");
// test
stmt.execute("drop table TEST if exists");
stmt.execute(CREATE_TABLE_TEST);
PreparedStatement pstmt = c.prepareStatement(INSERT_INTO_TEST_VALUES);
try{
for (int i = 0; i < TEST_ROW_COUNT; i++) {
pstmt.setString(1, "name" + i);
pstmt.addBatch();
}
pstmt.executeBatch();
}finally{
pstmt.close();
}
// employee
stmt.execute("drop table EMPLOYEE if exists");
createEmployeeTable(templates);
stmt.execute("alter table EMPLOYEE alter column id int generated by default as identity");
addEmployees(INSERT_INTO_EMPLOYEE);
// date_test and time_test
stmt.execute("drop table TIME_TEST if exists");
stmt.execute("drop table DATE_TEST if exists");
stmt.execute(CREATE_TABLE_TIMETEST);
stmt.execute(CREATE_TABLE_DATETEST);
hsqlInited = true;
}
public static void initCubrid() throws SQLException, ClassNotFoundException{
targetHolder.set(Target.CUBRID);
//SQLTemplates templates = new MySQLTemplates();
Connection c = getCubrid();
connHolder.set(c);
Statement stmt = c.createStatement();
stmtHolder.set(stmt);
if (cubridInited){
return;
}
// survey
stmt.execute("drop table if exists SURVEY");
stmt.execute("create table SURVEY(ID int auto_increment(16693,2), " +
"NAME varchar(30)," +
"NAME2 varchar(30)," +
"constraint suryey_pk primary key(ID))");
stmt.execute("insert into SURVEY values (1,'Hello World','Hello');");
// test
stmt.execute("drop table if exists \"TEST\"");
stmt.execute("create table \"TEST\"(NAME varchar(255))");
PreparedStatement pstmt = c.prepareStatement("insert into \"TEST\" values(?)");
try{
for (int i = 0; i < TEST_ROW_COUNT; i++) {
pstmt.setString(1, "name" + i);
pstmt.addBatch();
}
pstmt.executeBatch();
}finally{
pstmt.close();
}
// employee
stmt.execute("drop table if exists EMPLOYEE");
//createEmployeeTable(templates);
stmt.execute("create table EMPLOYEE ( " +
"ID INT PRIMARY KEY AUTO_INCREMENT, " +
"FIRSTNAME VARCHAR(50), " +
"LASTNAME VARCHAR(50), " +
"SALARY DECIMAL, " +
"DATEFIELD DATE, " +
"TIMEFIELD TIME, " +
"SUPERIOR_ID INT, " +
"CONSTRAINT FK_SUPERIOR FOREIGN KEY(SUPERIOR_ID) REFERENCES EMPLOYEE(ID) " +
")");
addEmployees(INSERT_INTO_EMPLOYEE);
// date_test and time_test
stmt.execute("drop table if exists TIME_TEST");
stmt.execute("drop table if exists DATE_TEST");
stmt.execute(CREATE_TABLE_TIMETEST);
stmt.execute(CREATE_TABLE_DATETEST);
cubridInited = true;
}
public static void initMySQL() throws SQLException, ClassNotFoundException{
targetHolder.set(Target.MYSQL);
//SQLTemplates templates = new MySQLTemplates();
Connection c = getMySQL();
connHolder.set(c);
Statement stmt = c.createStatement();
stmtHolder.set(stmt);
if (mysqlInited){
return;
}
// survey
stmt.execute("drop table if exists SURVEY");
stmt.execute("create table SURVEY(ID int primary key auto_increment, " +
"NAME varchar(30)," +
"NAME2 varchar(30))");
stmt.execute("insert into SURVEY values (1,'Hello World','Hello');");
// test
stmt.execute("drop table if exists TEST");
stmt.execute(CREATE_TABLE_TEST);
PreparedStatement pstmt = c.prepareStatement(INSERT_INTO_TEST_VALUES);
try{
for (int i = 0; i < TEST_ROW_COUNT; i++) {
pstmt.setString(1, "name" + i);
pstmt.addBatch();
}
pstmt.executeBatch();
}finally{
pstmt.close();
}
// employee
stmt.execute("drop table if exists EMPLOYEE");
//createEmployeeTable(templates);
stmt.execute("create table EMPLOYEE ( " +
"ID INT PRIMARY KEY AUTO_INCREMENT, " +
"FIRSTNAME VARCHAR(50), " +
"LASTNAME VARCHAR(50), " +
"SALARY DECIMAL, " +
"DATEFIELD DATE, " +
"TIMEFIELD TIME, " +
"SUPERIOR_ID INT, " +
"CONSTRAINT FK_SUPERIOR FOREIGN KEY(SUPERIOR_ID) REFERENCES EMPLOYEE(ID) " +
")");
addEmployees(INSERT_INTO_EMPLOYEE);
// date_test and time_test
stmt.execute("drop table if exists TIME_TEST");
stmt.execute("drop table if exists DATE_TEST");
stmt.execute(CREATE_TABLE_TIMETEST);
stmt.execute(CREATE_TABLE_DATETEST);
mysqlInited = true;
}
public static void initOracle() throws SQLException, ClassNotFoundException{
targetHolder.set(Target.ORACLE);
SQLTemplates templates = new OracleTemplates();
Connection c = getOracle();
connHolder.set(c);
Statement stmt = c.createStatement();
stmtHolder.set(stmt);
if (oracleInited){
return;
}
// types
stmt.execute("create or replace type ssn_t as object (ssn_type char(11))");
// survey
dropTable(templates, "SURVEY");
stmt.execute("create table SURVEY (ID number(10,0), " +
"NAME varchar(30 char)," +
"NAME2 varchar(30 char))");
try {
stmt.execute("drop sequence survey_seq");
} catch(SQLException e) {
if (!e.getMessage().contains("sequence does not exist")){
throw e;
}
}
stmt.execute("create sequence survey_seq");
stmt.execute("create or replace trigger survey_trigger\n"+
"before insert on survey\n"+
"for each row\n" +
"when (new.id is null)\n"+
"begin\n"+
" select survey_seq.nextval into :new.id from dual;\n"+
"end;\n");
stmt.execute("insert into SURVEY values (1,'Hello World','Hello')");
// test
dropTable(templates, "TEST");
stmt.execute("create table TEST(name varchar(255))");
String sql = "insert into TEST values(?)";
PreparedStatement pstmt = c.prepareStatement(sql);
for (int i = 0; i < TEST_ROW_COUNT; i++) {
pstmt.setString(1, "name" + i);
pstmt.addBatch();
}
pstmt.executeBatch();
// employee
dropTable(templates, "EMPLOYEE");
stmt.execute("create table EMPLOYEE ( " +
"ID NUMBER(10,0), " +
"FIRSTNAME VARCHAR2(50 CHAR), " +
"LASTNAME VARCHAR2(50 CHAR), " +
"SALARY DOUBLE PRECISION, " +
"DATEFIELD DATE, " +
"TIMEFIELD TIMESTAMP, " +
"SUPERIOR_ID NUMBER(10,0), " +
"CONSTRAINT PK_EMPLOYEE PRIMARY KEY(ID), " +
"CONSTRAINT FK_SUPERIOR FOREIGN KEY(SUPERIOR_ID) REFERENCES EMPLOYEE(ID)" +
")");
addEmployees(INSERT_INTO_EMPLOYEE);
// date_test and time_test
dropTable(templates, "DATE_TEST");
stmt.execute("create table date_test(date_test date)");
oracleInited = true;
}
public static void initPostgres() throws SQLException, ClassNotFoundException{
targetHolder.set(Target.POSTGRES);
SQLTemplates templates = new PostgresTemplates(true);
// NOTE : unquoted identifiers are converted to lower case in Postgres
Connection c = getPostgres();
connHolder.set(c);
Statement stmt = c.createStatement();
stmtHolder.set(stmt);
if (postgresInited){
return;
}
// types
dropType(stmt, "u_country");
stmt.execute("create type u_country as enum ('Brazil', 'England', 'Germany')");
dropType(stmt, "u_street_type");
stmt.execute("create type u_street_type as (street VARCHAR(100), number VARCHAR(30))");
// survey
dropTable(templates, "SURVEY");
try {
stmt.execute("drop sequence SURVEY_SEQ");
} catch(SQLException e) {
if (!e.getMessage().contains("does not exist")) {
throw e;
}
}
stmt.execute("create sequence SURVEY_SEQ");
stmt.execute("create table \"SURVEY\"(" +
"\"ID\" int DEFAULT NEXTVAL('SURVEY_SEQ'), " +
"\"NAME\" varchar(30), \"NAME2\" varchar(30))");
stmt.execute("insert into \"SURVEY\" values (1, 'Hello World')");
// test
dropTable(templates, "TEST");
stmt.execute(quote(CREATE_TABLE_TEST,"TEST","NAME"));
String sql = quote(INSERT_INTO_TEST_VALUES,"TEST");
PreparedStatement pstmt = c.prepareStatement(sql);
try{
for (int i = 0; i < TEST_ROW_COUNT; i++) {
pstmt.setString(1, "name" + i);
pstmt.addBatch();
}
pstmt.executeBatch();
}finally{
pstmt.close();
}
// employee
// stmt.execute("drop table employee if exists");
dropTable(templates, "EMPLOYEE");
createEmployeeTable(templates);
addEmployees("insert into \"EMPLOYEE\" " +
"(\"ID\", \"FIRSTNAME\", \"LASTNAME\", \"SALARY\", \"DATEFIELD\", \"TIMEFIELD\", \"SUPERIOR_ID\") " +
"values (?,?,?,?,?,?,?)");
// date_test and time_test
dropTable(templates, "TIME_TEST");
dropTable(templates, "DATE_TEST");
stmt.execute(quote(CREATE_TABLE_TIMETEST, "TIME_TEST"));
stmt.execute(quote(CREATE_TABLE_DATETEST, "DATE_TEST"));
postgresInited = true;
}
static void addEmployee(String sql, int id, String firstName, String lastName,
double salary, int superiorId) throws SQLException {
PreparedStatement stmt = connHolder.get().prepareStatement(sql);
stmt.setInt(1, id);
stmt.setString(2, firstName);
stmt.setString(3,lastName);
stmt.setDouble(4, salary);
stmt.setDate(5, Constants.date);
stmt.setTime(6, Constants.time);
if (superiorId <= 0){
stmt.setNull(7, Types.INTEGER);
}else{
stmt.setInt(7, superiorId);
}
stmt.execute();
stmt.close();
}
private static void addEmployees(String sql) throws SQLException {
addEmployee(sql, 1, "Mike", "Smith", 160000, -1);
addEmployee(sql, 2, "Mary", "Smith", 140000, -1);
// Employee under Mike
addEmployee(sql, 10, "Joe", "Divis", 50000, 1);
addEmployee(sql, 11, "Peter", "Mason", 45000, 1);
addEmployee(sql, 12, "Steve", "Johnson", 40000, 1);
addEmployee(sql, 13, "Jim", "Hood", 35000, 1);
// Employee under Mike
addEmployee(sql, 20, "Jennifer", "Divis", 60000, 2);
addEmployee(sql, 21, "Helen", "Mason", 50000, 2);
addEmployee(sql, 22, "Daisy", "Johnson", 40000, 2);
addEmployee(sql, 23, "Barbara", "Hood", 30000, 2);
}
private static String quote(String sql, String... identifiers) {
String rv = sql;
for (String id : identifiers){
rv = rv.replace(id, "\"" + id + "\"");
}
return rv;
}
private Connections(){}
}