Example usage for java.sql CallableStatement isClosed

Introduction

In this page you can find the example usage for java.sql CallableStatement isClosed.

Prototype

boolean isClosed() throws SQLException;

Source Link

Document

Retrieves whether this Statement object has been closed.

Usage

From source file:jongo.jdbc.JDBCExecutor.java

/**
 * Executes the given stored procedure or function in the RDBMS using the given List 
 * of {@link jongo.jdbc.StoredProcedureParam}.
 * @param database database name or schema where to execute the stored procedure or function
 * @param queryName the name of the stored procedure or function. This gets converted to a {call foo()} statement.
 * @param params a List of {@link jongo.jdbc.StoredProcedureParam} used by the stored procedure or function.
 * @return a List of {@link jongo.rest.xstream.Row} with the results of the stored procedure (if out parameters are given)
 * or the results of the function.//ww w .j  a v a2  s .  c o  m
 * @throws SQLException
 */
public static List<Row> executeQuery(final String database, final String queryName,
        final List<StoredProcedureParam> params) throws SQLException {
    l.debug("Executing stored procedure " + database + "." + queryName);

    DatabaseConfiguration dbconf = conf.getDatabaseConfiguration(database);
    QueryRunner run = JDBCConnectionFactory.getQueryRunner(dbconf);
    final String call = JongoUtils.getCallableStatementCallString(queryName, params.size());
    List<Row> rows = new ArrayList<Row>();

    Connection conn = null;
    CallableStatement cs = null;
    try {
        l.debug("Obtain connection from datasource");
        conn = run.getDataSource().getConnection();

        l.debug("Create callable statement for " + call);
        cs = conn.prepareCall(call);

        l.debug("Add parameters to callable statement");
        final List<StoredProcedureParam> outParams = addParameters(cs, params);

        l.debug("Execute callable statement");
        if (cs.execute()) {
            l.debug("Got a result set " + queryName);
            ResultSet rs = cs.getResultSet();
            JongoResultSetHandler handler = new JongoResultSetHandler(true);
            rows = handler.handle(rs);
        } else if (!outParams.isEmpty()) {
            l.debug("No result set, but we are expecting OUT values from " + queryName);
            Map<String, String> results = new HashMap<String, String>();
            for (StoredProcedureParam p : outParams) {
                results.put(p.getName(), cs.getString(p.getIndex())); // thank $deity we only return strings
            }
            rows.add(new Row(0, results));
        }
    } catch (SQLException ex) {
        l.debug(ex.getMessage());
        throw ex;
    } finally {
        try {
            if (cs != null && !cs.isClosed())
                cs.close();
        } catch (SQLException ex) {
            l.debug(ex.getMessage());
        }
        try {
            if (conn != null && !conn.isClosed())
                conn.close();
        } catch (SQLException ex) {
            l.debug(ex.getMessage());
        }
    }
    l.debug("Received " + rows.size() + " results.");
    return rows;
}

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