How to manage a large dataset using Spring MySQL and RowCallbackHandler
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by rmarimon
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Published on 2010-01-19T17:25:46Z
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2010/05/14
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I'm trying to go over each row of a table in MySQL using Spring and a JdbcTemplate. If I'm not mistaken this should be as simple as:
JdbcTemplate template = new JdbcTemplate(datasource);
template.setFetchSize(1);
// template.setFetchSize(Integer.MIN_VALUE) does not work either
template.query("SELECT * FROM cdr", new RowCallbackHandler() {
public void processRow(ResultSet rs) throws SQLException {
System.out.println(rs.getString("src"));
}
});
I get an OutOfMemoryError because it is trying to read the whole thing. Any ideas?
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