/**
* Create table in database. <br>
*
* @throws ProvMonitorException If table could not be created. <br>
* @throws DatabaseException <code>Database related problems.</code><br>
* <ul>
* <li>ConnectionException - Connection problems related.
* <li>DatabaseException - Problems with the table creation itself.
* </ul>
*/
@Override
public void createTable() throws ProvMonitorException {
Connection conn = ConnectionManager.getInstance().getConnection();
Statement s = null;
try {
try {
// Preparing statement
s = conn.createStatement();
// Transaction control
conn.setAutoCommit(false);
} catch (SQLException e) {
throw new ConnectionException(e.getMessage(), e.getCause(), e.getSQLState());
}
if (s != null) {
String createTableSQL =
"CREATE TABLE PROCESS_INSTANCE (INSTANCE_ID VARCHAR(255) NOT NULL"
+ ", PROCESS_ID VARCHAR(255) NOT NULL"
+ ", NAME VARCHAR(255)"
+ ", SWFMS_ID INT"
+ ")";
s.executeUpdate(createTableSQL);
conn.commit();
}
} catch (SQLException e) {
try {
conn.rollback();
} catch (SQLException ex) {
}
throw new DatabaseException(e.getMessage(), e.getCause());
}
}
/**
* Verify table existence in database. <br>
*
* @return <code><b>true</b></code> - If table exists. <br>
* <code><b>false</b></code> - If table does not exist.
* @throws ProvMonitorException If table could not be created. <br>
*/
@Override
public boolean isTableCreated() throws ProvMonitorException {
Connection conn = ConnectionManager.getInstance().getConnection();
try {
try {
// Transaction control
conn.setAutoCommit(false);
} catch (SQLException e) {
throw new ConnectionException(e.getMessage(), e.getCause(), e.getSQLState());
}
// Verifying schema
PreparedStatement psInsert =
conn.prepareStatement(
"INSERT INTO PROCESS_INSTANCE (INSTANCE_ID, PROCESS_ID) values (?,?)");
psInsert.setString(1, "TesteParam1");
psInsert.setString(2, "TesteParam2");
psInsert.executeUpdate();
conn.rollback();
return true;
} catch (SQLException e) {
// Schema object does not exist
try {
conn.rollback();
} catch (SQLException ex) {
}
return false;
}
}
