Package com.clickhouse.client

Interface ClickHouseDataUpdater

Functional Interface:

This is a functional interface and can therefore be used as the assignment target for a lambda expression or method reference.

@FunctionalInterface
public interface ClickHouseDataUpdater

This class defines custom reading/writing logic, which can be used in ClickHouseInputStream.readCustom(ClickHouseDataUpdater) and ClickHouseOutputStream.writeCustom(ClickHouseDataUpdater).

Method Summary

Modifier and Type	Method	Description
int	update(byte[] bytes, int position, int limit)	Byte array(from position to limit) to update, usually read or write.

Method Detail

update

int update(byte[] bytes,
           int position,
           int limit)
    throws IOException

Byte array(from position to limit) to update, usually read or write.

Parameters:

bytes - non-null byte array to update

position - zero-based index indicating start position of the byte array

limit - zero-based index indicating end position of the byte array, it should always greater than or equal to position

Returns:

negative number, usually -1, indicates to more to update, or other number for bytes being updated

Throws:

IOException - when it failed to update