1.1 --- /dev/null	Thu Jan 01 00:00:00 1970 +0000
     1.2 +++ b/java/jdbc-loopback-driver/src/main/java/info/globalcode/jdbc/loopback/PreparedStatement.java	Mon Mar 04 17:06:42 2019 +0100
     1.3 @@ -0,0 +1,107 @@
     1.4 +/**
     1.5 + * SQL-DK
     1.6 + * Copyright © 2014 František Kučera (frantovo.cz)
     1.7 + *
     1.8 + * This program is free software: you can redistribute it and/or modify
     1.9 + * it under the terms of the GNU General Public License as published by
    1.10 + * the Free Software Foundation, either version 3 of the License, or
    1.11 + * (at your option) any later version.
    1.12 + *
    1.13 + * This program is distributed in the hope that it will be useful,
    1.14 + * but WITHOUT ANY WARRANTY; without even the implied warranty of
    1.15 + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
    1.16 + * GNU General Public License for more details.
    1.17 + *
    1.18 + * You should have received a copy of the GNU General Public License
    1.19 + * along with this program. If not, see <http://www.gnu.org/licenses/>.
    1.20 + */
    1.21 +package info.globalcode.jdbc.loopback;
    1.22 +
    1.23 +import java.sql.SQLException;
    1.24 +import java.sql.SQLWarning;
    1.25 +import java.sql.Types;
    1.26 +import java.util.ArrayList;
    1.27 +import java.util.HashMap;
    1.28 +import java.util.List;
    1.29 +import java.util.Map;
    1.30 +
    1.31 +/**
    1.32 + *
    1.33 + * @author Ing. František Kučera (frantovo.cz)
    1.34 + */
    1.35 +public class PreparedStatement extends AbstractPreparedStatement {
    1.36 +
    1.37 +	private final Map<Integer, ObjectParameter> parameters = new HashMap<>();
    1.38 +	private List<Object[]> table;
    1.39 +	private final ResultSetMetaData metadata = new ResultSetMetaData();
    1.40 +
    1.41 +	@Override
    1.42 +	public void setObject(int parameterNumber, Object data, int targetSqlType) throws SQLException {
    1.43 +		parameters.put(parameterNumber, new ObjectParameter(data, targetSqlType));
    1.44 +	}
    1.45 +
    1.46 +	@Override
    1.47 +	public boolean execute() throws SQLException {
    1.48 +
    1.49 +		if (parameters.size() < 1) {
    1.50 +			throw new SQLException("Missing first parameter (column count)");
    1.51 +		} else {
    1.52 +			int columnCount = Integer.valueOf(String.valueOf(parameters.get(1).getData()));
    1.53 +
    1.54 +			for (int i = 0; i < columnCount; i++) {
    1.55 +				String label = parameters.get(1 + i + 1).getData().toString();
    1.56 +				metadata.addColumn(new ResultSetMetaData.ColumnDescriptor(Types.VARCHAR, "VARCHAR", label, label));
    1.57 +			}
    1.58 +
    1.59 +			int cellIndex = 0;
    1.60 +
    1.61 +			table = new ArrayList<>();
    1.62 +			Object[] currentRow = null;
    1.63 +
    1.64 +			for (int parameterNumber = (1 + columnCount + 1); true; parameterNumber++) {
    1.65 +				ObjectParameter data = parameters.get(parameterNumber);
    1.66 +				if (data == null) {
    1.67 +					break;
    1.68 +				} else {
    1.69 +					int columnIndex = cellIndex % columnCount;
    1.70 +					cellIndex++;
    1.71 +					if (columnIndex == 0) {
    1.72 +						currentRow = new Object[columnCount];
    1.73 +						table.add(currentRow);
    1.74 +					}
    1.75 +					currentRow[columnIndex] = data.getData();
    1.76 +				}
    1.77 +			}
    1.78 +
    1.79 +			return true;
    1.80 +		}
    1.81 +	}
    1.82 +
    1.83 +	@Override
    1.84 +	public java.sql.ResultSet getResultSet() throws SQLException {
    1.85 +		return new ResultSet(metadata, table);
    1.86 +	}
    1.87 +
    1.88 +	@Override
    1.89 +	public int getUpdateCount() throws SQLException {
    1.90 +		return -1;
    1.91 +	}
    1.92 +
    1.93 +	@Override
    1.94 +	public boolean getMoreResults() throws SQLException {
    1.95 +		return false;
    1.96 +	}
    1.97 +
    1.98 +	@Override
    1.99 +	public void close() throws SQLException {
   1.100 +	}
   1.101 +
   1.102 +	@Override
   1.103 +	public SQLWarning getWarnings() throws SQLException {
   1.104 +		return null;
   1.105 +	}
   1.106 +
   1.107 +	@Override
   1.108 +	public void clearWarnings() throws SQLException {
   1.109 +	}
   1.110 +}