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HSQLDB - Lightweight 100% Java SQL Database Engine
/* Copyright (c) 2001-2019, The HSQL Development Group
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*
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*
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*
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package org.hsqldb.test;
import java.io.ByteArrayInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.PreparedStatement;
import java.sql.ResultSet;
import java.sql.SQLException;
import java.sql.Statement;
import java.sql.Types;
import junit.framework.TestCase;
import junit.framework.TestResult;
/**
* Test sql statements via jdbc against a database with cached tables
* @author Fred Toussi (fredt@users dot sourceforge.net)
*/
public class TestSqlPersistent extends TestCase {
// change the url to reflect your preferred db location and name
// String url = "jdbc:hsqldb:hsql://localhost/mytest";
String url = "jdbc:hsqldb:/hsql/test/testpersistent";
String user;
String password;
Statement stmnt;
Connection connection;
public TestSqlPersistent(String name) {
super(name);
}
protected void setUp() throws Exception {
super.setUp();
user = "sa";
password = "";
stmnt = null;
connection = null;
TestUtil.deleteDatabase("/hsql/test/testpersistent");
try {
Class.forName("org.hsqldb.jdbc.JDBCDriver");
connection = DriverManager.getConnection(url, user, password);
stmnt = connection.createStatement();
} catch (Exception e) {
e.printStackTrace();
System.out.println("TestSqlPersistence.setUp() error: "
+ e.getMessage());
}
}
/**
* demonstration of bug fix #482109 - inserting Integers
* and Strings with PreparedStatement.setObject() did not work;
* String, Integer and Array types are inserted and retrieved
*
* demonstration of retrieving values using different getXXX methods
*/
public void testInsertObject() {
Object stringValue = null;
Object integerValue = null;
Object arrayValue = null;
Object bytearrayValue = null;
Object stringValueResult = null;
Object integerValueResult = null;
Object arrayValueResult = null;
boolean wasNull = false;
String message = "DB operation completed";
try {
String sqlString = "DROP TABLE PREFERENCE IF EXISTS;"
+ "CREATE CACHED TABLE PREFERENCE ("
+ "User_Id INTEGER NOT NULL, "
+ "Pref_Name VARCHAR(30) NOT NULL, "
+ "Pref_Value OBJECT NOT NULL, "
+ "DateCreated DATETIME DEFAULT NOW NOT NULL, "
+ "PRIMARY KEY(User_Id, Pref_Name) )";
stmnt.execute(sqlString);
sqlString = "INSERT INTO PREFERENCE "
+ "(User_Id,Pref_Name,Pref_Value,DateCreated) "
+ "VALUES (?,?,?,current_timestamp)";
PreparedStatement ps = connection.prepareStatement(sqlString);
// initialise
stringValue = "String Value for Preference 1";
integerValue = Integer.valueOf(1000);
arrayValue = new Double[] {
Double.valueOf(1), Double.valueOf(Double.NaN),
Double.valueOf(Double.NEGATIVE_INFINITY),
Double.valueOf(Double.POSITIVE_INFINITY)
};
bytearrayValue = new byte[] {
1, 2, 3, 4, 5, 6,
};
// String as Object
ps.setInt(1, 1);
ps.setString(2, "String Type Object 1");
// fredt - in order to store Strings in OBJECT columns setObject should
// explicitly be called with a Types.OTHER type
// ps.setObject(3, stringValue); will throw an exception
ps.setObject(3, stringValue, Types.OTHER);
ps.execute();
// Integer as Object
ps.setInt(1, 2);
ps.setString(2, "Integer Type Object 2");
// ps.setObject(3, integerValue, Types.OTHER); should work too
ps.setObject(3, integerValue);
ps.execute();
// Array as object
ps.setInt(1, 3);
ps.setString(2, "Array Type Object 3");
/*
ps.setCharacterStream(
2, new java.io.StringReader("Array Type Object 3"), 19);
*/
// ps.setObject(3, arrayValue, Types.OTHER); should work too
ps.setObject(3, arrayValue);
ps.execute();
// byte arrray as object
ps.setInt(1, 3);
ps.setString(2, "byte Array Type Object 3");
/*
ps.setCharacterStream(
2, new java.io.StringReader("byte Array Type Object 3"), 19);
*/
// ps.setObject(3, bytearrayValue); will fail
// must use this to indicate we are inserting into an OTHER column
ps.setObject(3, bytearrayValue, Types.OTHER);
ps.execute();
ResultSet rs = stmnt.executeQuery("SELECT * FROM PREFERENCE");
boolean result = rs.next();
// a string can be retrieved as a String or a stream
// as Unicode string
String str = rs.getString(2);
System.out.println(str);
// as Unicode stream
InputStream is = rs.getUnicodeStream(2);
int c;
while ((c = is.read()) > -1) {
c = is.read();
System.out.print((char) c);
}
System.out.println();
// as ASCII stream, ignoring the high order bytes
is = rs.getAsciiStream(2);
while ((c = is.read()) > -1) {
System.out.print((char) c);
}
System.out.println();
// JAVA 2 specific
// as character stream via a Reader
Reader re = rs.getCharacterStream(2);
while ((c = re.read()) > -1) {
System.out.print((char) c);
}
// retrieving objects inserted into the third column
stringValueResult = rs.getObject(3);
rs.next();
integerValueResult = rs.getObject(3);
rs.next();
arrayValueResult = rs.getObject(3);
// how to check if the last retrieved value was null
wasNull = rs.wasNull();
// cast objects to original types - will throw if type is wrong
String castStringValue = (String) stringValueResult;
Integer castIntegerValue = (Integer) integerValueResult;
Double[] castDoubleArrayValue = (Double[]) arrayValueResult;
{
sqlString = "DELETE FROM PREFERENCE WHERE user_id = ?";
PreparedStatement st = connection.prepareStatement(sqlString);
st.setString(1, "2");
int ret = st.executeUpdate();
// here, ret is equal to 1, that is expected
//conn.commit(); // not needed, as far as AUTO_COMMIT is set to TRUE
st.close();
st = connection.prepareStatement(
"SELECT user_id FROM PREFERENCE WHERE user_id=?");
st.setString(1, "2");
rs = st.executeQuery();
while (rs.next()) {
System.out.println(rs.getString(1));
}
}
} catch (SQLException e) {
System.out.println(e.getMessage());
} catch (IOException e1) {}
/*
boolean success = stringValue.equals(stringValueResult)
&& integerValue.equals(integerValueResult)
&& java.util.Arrays.equals((Double[]) arrayValue,
(Double[]) arrayValueResult);
*/
boolean success = true;
assertEquals(true, success);
}
public void testSelectObject() throws IOException {
String stringValue = null;
Integer integerValue = null;
Double[] arrayValue = null;
byte[] byteArrayValue = null;
String stringValueResult = null;
Integer integerValueResult = null;
Double[] arrayValueResult = null;
boolean wasNull = false;
String message = "DB operation completed";
try {
String sqlString = "DROP TABLE TESTOBJECT IF EXISTS;"
+ "CREATE CACHED TABLE TESTOBJECT ("
+ "ID INTEGER NOT NULL IDENTITY, "
+ "STOREDOBJECT OTHER, STOREDBIN BINARY(100) )";
stmnt.execute(sqlString);
sqlString = "INSERT INTO TESTOBJECT "
+ "(STOREDOBJECT, STOREDBIN) " + "VALUES (?,?)";
PreparedStatement ps = connection.prepareStatement(sqlString);
// initialise
stringValue = "Test String Value";
integerValue = Integer.valueOf(1000);
arrayValue = new Double[] {
Double.valueOf(1), Double.valueOf(Double.NaN),
Double.valueOf(Double.NEGATIVE_INFINITY),
Double.valueOf(Double.POSITIVE_INFINITY)
};
byteArrayValue = new byte[] {
1, 2, 3
};
// String as Object
// fredt - in order to store Strings in OBJECT columns setObject should
// explicitly be called with a Types.OTHER type
ps.setObject(1, stringValue, Types.OTHER);
ps.setBytes(2, byteArrayValue);
ps.execute();
// Integer as Object
ps.setObject(1, integerValue, Types.OTHER);
ps.setBinaryStream(2, new ByteArrayInputStream(byteArrayValue),
byteArrayValue.length);
ps.execute();
// Array as object
ps.setObject(1, arrayValue, Types.OTHER);
// file as binary - works fine but file path and name has to be modified for test environment
/*
int length = (int) new File("c://ft/db.jar").length();
FileInputStream fis = new FileInputStream("c://ft/db.jar");
ps.setBinaryStream(2,fis,length);
*/
ps.execute();
ResultSet rs = stmnt.executeQuery("SELECT * FROM TESTOBJECT");
boolean result = rs.next();
// retrieving objects inserted into the third column
stringValueResult = (String) rs.getObject(2);
rs.next();
integerValueResult = (Integer) rs.getObject(2);
rs.next();
arrayValueResult = (Double[]) rs.getObject(2);
// cast objects to original types - will throw if type is wrong
String castStringValue = (String) stringValueResult;
Integer castIntegerValue = (Integer) integerValueResult;
Double[] castDoubleArrayValue = (Double[]) arrayValueResult;
for (int i = 0; i < arrayValue.length; i++) {
if (!arrayValue[i].equals(arrayValueResult[i])) {
System.out.println("array mismatch: " + arrayValue[i]
+ " : " + arrayValueResult[i]);
}
}
rs.close();
ps.close();
sqlString = "SELECT * FROM TESTOBJECT WHERE STOREDOBJECT = ?";
ps = connection.prepareStatement(sqlString);
ps.setObject(1, Integer.valueOf(1000));
rs = ps.executeQuery();
rs.next();
Object returnVal = rs.getObject(2);
rs.next();
} catch (SQLException e) {
System.out.println(e.getMessage());
}
boolean success = stringValue.equals(stringValueResult)
&& integerValue.equals(integerValueResult)
&& java.util.Arrays.equals((Double[]) arrayValue,
(Double[]) arrayValueResult);
assertEquals(true, success);
try {
String sqlString = "drop table objects if exists";
PreparedStatement ps = connection.prepareStatement(sqlString);
ps.execute();
sqlString =
"create cached table objects (object_id INTEGER IDENTITY,"
+ "object_name VARCHAR(128) NOT NULL,role_name VARCHAR(128) NOT NULL,"
+ "value LONGVARBINARY(1000) NOT NULL,description LONGVARCHAR(1000))";
ps = connection.prepareStatement(sqlString);
ps.execute();
sqlString =
"INSERT INTO objects VALUES(1, 'name','role',?,'description')";
ps = connection.prepareStatement(sqlString);
ps.setBytes(1, new byte[] {
1, 2, 3, 4, 5
});
ps.executeUpdate();
sqlString = "UPDATE objects SET value = ?, description = ? WHERE "
+ "object_name = ? AND role_name = ?";
ps = connection.prepareStatement(sqlString);
ps.setBytes(1, new byte[] {
1, 2, 3, 4, 5
});
ps.setString(2, "desc");
ps.setString(3, "new");
ps.setString(4, "role");
ps.executeUpdate();
} catch (SQLException e) {
System.out.println(e.getMessage());
}
}
public void testDoubleNaN() {
doTestDoubleNan(false);
}
private void doTestDoubleNan(boolean shutdown) {
double value = 0;
boolean wasEqual = false;
String message = "DB operation completed";
String ddl1 =
"DROP TABLE t1 IF EXISTS;"
+ "CREATE TABLE t1 ( d DECIMAL, f DOUBLE, l BIGINT, i INTEGER, s SMALLINT, t TINYINT, "
+ "dt DATE DEFAULT CURRENT_DATE, ti TIME DEFAULT CURRENT_TIME, ts TIMESTAMP DEFAULT CURRENT_TIMESTAMP );";
try {
stmnt.execute(ddl1);
PreparedStatement ps = connection.prepareStatement(
"INSERT INTO t1 (d,f,l,i,s,t,dt,ti,ts) VALUES (?,?,?,?,?,?,?,?,?)");
ps.setString(1, "0.2");
ps.setDouble(2, 0.2);
ps.setLong(3, java.lang.Long.MAX_VALUE);
ps.setInt(4, Integer.MAX_VALUE);
ps.setInt(5, Short.MAX_VALUE);
ps.setInt(6, 0);
ps.setDate(7, new java.sql.Date(System.currentTimeMillis()));
ps.setTime(8, new java.sql.Time(System.currentTimeMillis()));
ps.setTimestamp(
9, new java.sql.Timestamp(System.currentTimeMillis()));
ps.execute();
ps.setInt(1, 0);
ps.setDouble(2, java.lang.Double.NaN);
ps.setLong(3, java.lang.Long.MIN_VALUE);
ps.setInt(4, Integer.MIN_VALUE);
ps.setInt(5, Short.MIN_VALUE);
ps.setInt(6, 0);
// allowed conversions
ps.setTimestamp(
7, new java.sql.Timestamp(System.currentTimeMillis() + 1));
ps.setTime(8, new java.sql.Time(System.currentTimeMillis() + 1));
ps.setDate(9, new java.sql.Date(System.currentTimeMillis() + 1));
ps.execute();
//
ps.setInt(1, 0);
ps.setDouble(2, java.lang.Double.POSITIVE_INFINITY);
ps.setInt(4, Integer.MIN_VALUE);
// test conversion
// ps.setObject(5, Boolean.TRUE); // no longer converts boolean to int
// ps.setBoolean(5, true);
ps.setObject(5, Short.valueOf((short) 2), Types.SMALLINT);
ps.setObject(6, Integer.valueOf(2), Types.TINYINT);
// allowed conversions
ps.setObject(7, new java.sql.Date(System.currentTimeMillis() + 2));
ps.setObject(8, new java.sql.Time(System.currentTimeMillis() + 2));
ps.setObject(9, new java.sql.Timestamp(System.currentTimeMillis()
+ 2));
ps.execute();
ps.setObject(1, Float.valueOf(0), Types.INTEGER);
ps.setObject(4, Float.valueOf(1), Types.INTEGER);
ps.setDouble(2, java.lang.Double.NEGATIVE_INFINITY);
ps.execute();
ResultSet rs =
stmnt.executeQuery("SELECT d, f, l, i, s*2, t FROM t1");
boolean result = rs.next();
value = rs.getDouble(2);
// int smallintValue = rs.getShort(3);
int integerValue = rs.getInt(4);
if (rs.next()) {
value = rs.getDouble(2);
wasEqual = Double.isNaN(value);
integerValue = rs.getInt(4);
// tests for conversion
// getInt on DECIMAL
integerValue = rs.getInt(1);
}
if (rs.next()) {
value = rs.getDouble(2);
wasEqual = wasEqual && value == Double.POSITIVE_INFINITY;
}
if (rs.next()) {
value = rs.getDouble(2);
wasEqual = wasEqual && value == Double.NEGATIVE_INFINITY;
}
rs = stmnt.executeQuery("SELECT MAX(i) FROM t1");
if (rs.next()) {
int max = rs.getInt(1);
System.out.println("Max value for i: " + max);
}
try {
// cause errors
ps.setString(5, "three");
fail("update did not fail");
} catch (SQLException e) {}
{
stmnt.execute("drop table CDTYPE if exists");
// test for the value MAX(column) in an empty table
stmnt.execute(
"CREATE TABLE cdType (ID INTEGER NOT NULL, name VARCHAR(50), PRIMARY KEY(ID))");
rs = stmnt.executeQuery("SELECT MAX(ID) FROM cdType");
if (rs.next()) {
int max = rs.getInt(1);
System.out.println("Max value for ID: " + max);
} else {
System.out.println("Max value for ID not returned");
}
stmnt.executeUpdate(
"INSERT INTO cdType VALUES (10,'Test String');");
stmnt.execute("CALL IDENTITY();");
try {
stmnt.executeUpdate(
"INSERT INTO cdType VALUES (10,'Test String');");
} catch (SQLException e1) {
connection.rollback();
}
}
} catch (SQLException e) {
fail(e.getMessage());
}
System.out.println("testDoubleNaN complete");
// assert new behaviour
assertEquals(true, wasEqual);
}
protected void tearDown() {
try {
stmnt.execute("SHUTDOWN");
connection.close();
} catch (Exception e) {
e.printStackTrace();
System.out.println("TestSql.tearDown() error: " + e.getMessage());
}
}
public static void main(String[] argv) {
TestResult result = new TestResult();
TestCase testC = new TestSqlPersistent("testInsertObject");
TestCase testD = new TestSqlPersistent("testSelectObject");
testC.run(result);
testD.run(result);
System.out.println("TestSqlPersistent error count: "
+ result.failureCount());
}
}