public static void delete(DBInfo info, Connection conn) throws Exception {
PreparedStatement pstmt = null;
try {
StringBuffer sql = new StringBuffer();
sql.append("delete from " + info.getTable() + " where ");
int i = 0;
for (DBField f : info.getPKeys()) {
sql.append(f.getDBName() + " = ?");
if (i < (info.getPKeys().size() - 1)) {
sql.append(" and ");
}
i++;
}
pstmt = conn.prepareStatement(sql.toString());
i = 0;
for (DBField f : info.getPKeys()) {
DBHelper.setPreparedStatement(pstmt, (i + 1), f.getValue());
i++;
}
pstmt.execute();
} catch (Exception e) {
throw e;
} finally {
DBUtil.closePreparedStatement(pstmt);
}
}
public static void getObject(Object obj, DBInfo info, Connection conn) throws Exception {
PreparedStatement pstmt = null;
ResultSet rs = null;
try {
StringBuffer sql = new StringBuffer();
sql.append("select ");
int i = 0;
for (DBField f : info.getAllFields()) {
sql.append(f.getDBName());
if (i < (info.getAllFields().size() - 1)) {
sql.append(", ");
}
i++;
}
sql.append(" from " + info.getTable() + " where ");
i = 0;
for (DBField f : info.getPKeys()) {
sql.append(f.getDBName() + " = ?");
if (i < (info.getPKeys().size() - 1)) {
sql.append(" and ");
}
i++;
}
pstmt = conn.prepareStatement(sql.toString());
i = 0;
for (DBField f : info.getPKeys()) {
DBHelper.setPreparedStatement(obj, pstmt, (i + 1), f);
i++;
}
rs = pstmt.executeQuery();
if (rs.next()) {
for (DBField f : info.getAllFields()) {
ObjectHelper.setObjectField(obj, f, rs);
}
} else {
throw new Exception("Binder -> Sorry can not find object");
}
} catch (Exception e) {
throw e;
} finally {
DBUtil.closePreparedStatement(pstmt, rs);
}
}
public static String getPasswordField(Object obj, DBInfo info, String field_name, Connection conn)
throws Exception {
String s;
PreparedStatement pstmt = null;
ResultSet rs = null;
try {
StringBuffer sql = new StringBuffer();
sql.append("select " + field_name + " from " + info.getTable() + " where ");
int i = 0;
for (Iterator it = info.getPKeys().iterator(); it.hasNext(); i++) {
DBField f = (DBField) it.next();
sql.append(f.getDBName() + " = ?");
if (i < (info.getPKeys().size() - 1)) {
sql.append(" and ");
}
}
pstmt = conn.prepareStatement(sql.toString());
i = 0;
for (Iterator it = info.getPKeys().iterator(); it.hasNext(); i++) {
DBField f = (DBField) it.next();
DBHelper.setPreparedStatement(obj, pstmt, (i + 1), f);
}
rs = pstmt.executeQuery();
if (rs.next()) {
s = rs.getString(1);
} else {
throw new Exception("Binder -> Error in retriving password field");
}
} catch (Exception e) {
throw e;
} finally {
DBUtil.closePreparedStatement(pstmt, rs);
}
return s;
}
public static boolean exists(Object obj, DBInfo info, Connection conn) throws Exception {
boolean flag = false;
PreparedStatement pstmt = null;
ResultSet rs = null;
try {
StringBuffer sql = new StringBuffer();
sql.append("select ");
int i = 0;
for (DBField f : info.getAllFields()) {
sql.append(f.getDBName());
break;
}
sql.append(" from " + info.getTable() + " where ");
i = 0;
for (DBField f : info.getPKeys()) {
sql.append(f.getDBName() + " = ?");
if (i < (info.getPKeys().size() - 1)) {
sql.append(" and ");
}
i++;
}
pstmt = conn.prepareStatement(sql.toString());
i = 0;
for (DBField f : info.getPKeys()) {
DBHelper.setPreparedStatement(obj, pstmt, (i + 1), f);
i++;
}
rs = pstmt.executeQuery();
if (rs.next()) {
flag = true;
}
} catch (Exception e) {
throw e;
} finally {
DBUtil.closePreparedStatement(pstmt, rs);
}
return flag;
}
public static void setBinaryField(DBInfo info, String field_name, InputStream in, Connection conn)
throws Exception {
PreparedStatement pstmt = null;
try {
StringBuffer sql = new StringBuffer();
sql.append("update " + info.getTable());
sql.append(" set ");
sql.append(field_name);
sql.append(" = ?");
sql.append(" where ");
int i = 0;
for (DBField f : info.getPKeys()) {
sql.append(f.getDBName());
sql.append(" = ?");
if (i < (info.getPKeys().size() - 1)) {
sql.append(" and ");
}
i++;
}
pstmt = conn.prepareStatement(sql.toString());
pstmt.setBinaryStream(1, in, in.available());
i = 1;
for (DBField f : info.getPKeys()) {
DBHelper.setPreparedStatement(pstmt, (i + 1), f.getValue());
i++;
}
pstmt.execute();
} catch (Exception e) {
throw e;
} finally {
DBUtil.closePreparedStatement(pstmt);
}
}