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Service for generating DB access logic in simple way via interfaces and annotations

There is a newer version: 2.0

package org.xblackcat.sjpu.storage.converter;

import java.sql.ResultSet;
import java.sql.SQLException;

/**
 * The class to convert a single-column result to Boolean object.
 * 
 * Valid values are threaded as true: boolean true, non-zero number value.
 * All other values are threaded as false. NULL threaded as null.
 */

public class ToBooleanConverter implements IToObjectConverter {
    public Boolean convert(ResultSet rs) throws SQLException {
        Object value = rs.getObject(1);
        if (value instanceof Boolean) {
            return (Boolean) value;
        }

        return value instanceof Number && ((Number) value).intValue() != 0;
    }
}