copy rows with myBatis - mybatis

Question

I'm trying to copy rows with Oracle and myBatis with this statement:
<?xml version="1.0" encoding="UTF-8" ?>
<!DOCTYPE mapper PUBLIC "-//mybatis.org//DTD Mapper 3.0//EN" "http://mybatis.org/dtd/mybatis-3-mapper.dtd" >
<mapper
...
<insert id="copy" >
INSERT INTO ${table}
<foreach item="key" collection="keys" index="index" open="(" separator="," close=")">
${key}
</foreach>
VALUES
<foreach item="key" collection="map" index="index" open="(" separator="," close=")">
${key}
</foreach>
</insert>
</mapper>
--
for ( Map.Entry<Object, Object> entry2 : map.entrySet()) {
String key2 = (String) entry2.getKey();
Object value = null;
if (entry2.getValue() == null)
value = "NULL";
else if (entry2.getValue() instanceof java.sql.Timestamp)
{
//...
}
else if (entry2.getValue() instanceof Integer || entry2.getValue() instanceof Long ||
entry2.getValue() instanceof Short || entry2.getValue() instanceof java.math.BigDecimal
){
value = entry2.getValue();
}
else if (entry2.getValue().getClass().getName().equals("oracle.sql.CLOB"))
{
Clob clob=(Clob)entry2.getValue();
value= (String)clob.getSubString((long)1, (int)clob.length());
}
else{
value = "'" + entry2.getValue() + "'";
}
map.put(key2, value);
columans_valores.add("'" + key2 + "'");
}
copyService(map, map.keySet(), "table");
--
It works with most types, but CLOB and BLOB get their address copied instead or gets shrunk to 4000 bytes depending on the code i use to copy them, how do i deal with them?

Answer 1

Finally got it working with some tweaks:
To inform myBatis about the type used, switch $ for #
Avoid quotes
To prevent Oracle errors when inserting nulls, remove them from the map instead of
trying to insert null values