I am trying to use Binarylizable interface in apache ignite for reducing
memory utilization(for compact representation of data). Following is data
class that I have made binarylizable.
class order_line implements Binarylizable{
@QuerySqlField(index = true)
int ol_o_id;
@QuerySqlField(index = true)
int ol_d_id;
@QuerySqlField(index = true)
int ol_w_id;
@QuerySqlField(index = true)
int ol_number;
@QuerySqlField
int ol_i_id;
@QuerySqlField
int ol_supply_w_id;
@QuerySqlField
String ol_delivery_d;
@QuerySqlField
int ol_quantity;
@QuerySqlField
double ol_amount;
@QuerySqlField
String ol_dist_info;
private order_lineKey key;
public order_lineKey key()
{
if(key == null)
key = new order_lineKey(ol_w_id, ol_d_id, ol_o_id,
ol_number);
return key;
}
@Override
public void readBinary(BinaryReader reader) throws
BinaryObjectException {
// TODO Auto-generated method stub
ol_o_id = reader.readInt("ol_o_id");
ol_d_id = reader.readInt("ol_d_id");
ol_w_id = reader.readInt("ol_w_id");
ol_number = reader.readInt("ol_number");
ol_i_id = reader.readInt("ol_i_id");
ol_supply_w_id = reader.readInt("ol_supply_w_id");
ol_delivery_d = reader.readString("ol_delivery_d");
ol_quantity = reader.readInt("ol_quantity");
ol_amount = reader.readDouble("ol_amount");
ol_dist_info = reader.readString("ol_dist_info");
}
@Override
public void writeBinary(BinaryWriter writer) throws
BinaryObjectException {
// TODO Auto-generated method stub
writer.writeInt("ol_o_id",ol_o_id);
writer.writeInt("ol_d_id",ol_d_id);
writer.writeInt("ol_w_id",ol_w_id);
writer.writeInt("ol_number",ol_number);
writer.writeInt("ol_i_id",ol_i_id);
writer.writeInt("ol_supply_w_id",ol_supply_w_id);
writer.writeString("ol_delivery_d",ol_delivery_d);
writer.writeInt("ol_quantity",ol_quantity);
writer.writeDouble("ol_amount", ol_amount);
writer.writeString("ol_dist_info",ol_dist_info);
}
}
Is this the correct way for compact binary representation of data? Because I
am not getting any improvement in memory consumption after using this
interface. Also, in readBinary() and writeBinary() methods do we have to
write writer.writeInt/String/Double and reader.readInt/String/Double methods
for every field or only fields participating in SQL queries(Does this have
any effect on memory consumption)?
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