/*
* Copyright (c) 2010 StockPlay development team
* All rights reserved.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
package com.kapti.data.persistence.oracle;
import com.kapti.exceptions.*;
import com.kapti.data.*;
import com.kapti.data.persistence.GenericDAO;
import com.kapti.filter.Filter;
import java.sql.*;
import java.util.ArrayList;
import java.util.Collection;
public class IndexDAO implements GenericDAO<Index, String> {
//
// Member data
//
private static final String SELECT_INDEX = "SELECT name, exchange, symbol FROM indexes WHERE isin = ?";
private static final String SELECT_INDEXES = "SELECT name, exchange, isin, symbol FROM indexes";
private static final String INSERT_INDEX = "INSERT INTO indexes(name, exchange, isin, symbol) VALUES(?, ?, ?, ?)";
private static final String UPDATE_INDEX = "UPDATE indexes SET name = ?, exchange = ?, symbol = ? WHERE isin = ?";
private static final String DELETE_INDEX = "DELETE FROM indexes WHERE isin = ?";
//
// Construction
//
private static IndexDAO instance = new IndexDAO();
private IndexDAO(){}
public static IndexDAO getInstance() {
return instance;
}
//
// Methods
//
public Index findById(String isin) throws StockPlayException {
Connection conn = null;
PreparedStatement stmt = null;
ResultSet rs = null;
try {
try {
conn = OracleConnection.getConnection();
stmt = conn.prepareStatement(SELECT_INDEX);
stmt.setString(1, isin);
rs = stmt.executeQuery();
if (rs.next()) {
Index tIndex = new Index(isin, rs.getString("symbol"), rs.getString("exchange"));
tIndex.setName(rs.getString("name"));
return tIndex;
} else {
throw new InvocationException(InvocationException.Type.NON_EXISTING_ENTITY, "There is no index with isin '" + isin + "'");
}
} finally {
if (rs != null) {
rs.close();
}
if (stmt != null) {
stmt.close();
}
if (conn != null) {
conn.close();
}
}
} catch (SQLException ex) {
throw new SubsystemException(SubsystemException.Type.DATABASE_FAILURE, ex.getCause());
}
}
public Collection<Index> findByFilter(Filter iFilter) throws StockPlayException, FilterException {
Connection conn = null;
PreparedStatement stmt = null;
ResultSet rs = null;
try {
try {
conn = OracleConnection.getConnection();
StringBuilder tQuery = new StringBuilder(SELECT_INDEXES);
if (!iFilter.empty())
tQuery.append(" WHERE " + (String)iFilter.compile("sql"));
stmt = conn.prepareStatement(tQuery.toString());
rs = stmt.executeQuery();
ArrayList<Index> list = new ArrayList<Index>();
while (rs.next()) {
Index tIndex = new Index(rs.getString("isin"), rs.getString("symbol"), rs.getString("exchange"));
tIndex.setName(rs.getString("name"));
list.add(tIndex);
}
return list;
} finally {
if (rs != null) {
rs.close();
}
if (stmt != null) {
stmt.close();
}
if (conn != null) {
conn.close();
}
}
} catch (SQLException ex) {
throw new SubsystemException(SubsystemException.Type.DATABASE_FAILURE, ex.getCause());
}
}
public Collection<Index> findAll() throws StockPlayException {
return findByFilter(new Filter());
}
/**
* Maakt de opgegeven index aan in de database. De id van het object wordt genegeerd, en er wordt door de database mbv. een sequence een uniek nummer gecreërd.
* @param entity Het object dat moet worden aangemaakt in de database
* @return
* @throws StockPlayException
*/
public int create(Index entity) throws StockPlayException {
Connection conn = null;
PreparedStatement stmt = null;
PreparedStatement stmtID = null;
ResultSet rs = null;
try {
try {
conn = OracleConnection.getConnection();
stmt = conn.prepareStatement(INSERT_INDEX);
stmt.setString(1, entity.getName());
stmt.setString(2, entity.getExchange());
stmt.setString(3, entity.getIsin());
stmt.setString(4, entity.getSymbol());
return stmt.executeUpdate();
} finally {
if (rs != null) {
rs.close();
}
if (stmt != null) {
stmt.close();
}
if(stmtID != null){
stmtID.close();
}
if (conn != null) {
conn.close();
}
}
} catch (SQLException ex) {
throw new SubsystemException(SubsystemException.Type.DATABASE_FAILURE, ex.getCause());
}
}
/**
* Past de Index met de opgegeven id aan in de database.
* @param entity Het object dat moet worden aangemaakt in de database
* @return
* @throws StockPlayException
*/
public boolean update(Index entity) throws StockPlayException {
Connection conn = null;
PreparedStatement stmt = null;
ResultSet rs = null;
try {
try {
conn = OracleConnection.getConnection();
stmt = conn.prepareStatement(UPDATE_INDEX);
stmt.setString(1, entity.getName());
stmt.setString(2, entity.getExchange());
stmt.setString(3, entity.getSymbol());
stmt.setString(4, entity.getIsin());
return stmt.executeUpdate() == 1;
} finally {
if (rs != null) {
rs.close();
}
if (stmt != null) {
stmt.close();
}
if (conn != null) {
conn.close();
}
}
} catch (SQLException ex) {
throw new SubsystemException(SubsystemException.Type.DATABASE_FAILURE, ex.getCause());
}
}
/**
* Verwijdert de index met de id van het object uit de database.
* @param entity Enkel de Id van het object is van belang
* @return True als het verwijderen van de index gelukt is.
* @throws StockPlayException
*/
public boolean delete(Index entity) throws StockPlayException {
Connection conn = null;
PreparedStatement stmt = null;
ResultSet rs = null;
try {
try {
conn = OracleConnection.getConnection();
stmt = conn.prepareStatement(DELETE_INDEX);
stmt.setString(1, entity.getIsin());
return stmt.executeUpdate() == 1;
} finally {
if (rs != null) {
rs.close();
}
if (stmt != null) {
stmt.close();
}
if (conn != null) {
conn.close();
}
}
} catch (SQLException ex) {
throw new SubsystemException(SubsystemException.Type.DATABASE_FAILURE, ex.getCause());
}
}
}