com.mysql.cj.protocol.a.result

Class AbstractBufferRow

java.lang.Object

com.mysql.cj.protocol.result.AbstractResultsetRow

com.mysql.cj.protocol.a.result.AbstractBufferRow

All Implemented Interfaces:

ProtocolEntity, ResultsetRow, Row

Direct Known Subclasses:

BinaryBufferRow, TextBufferRow

public abstract class AbstractBufferRow
extends AbstractResultsetRow

A ResultSetRow implementation that holds one row packet (which is re-used by the driver, and thus saves memory allocations), and tries when possible to avoid allocations to break out the results as individual byte[]s. (this isn't possible when doing things like reading floating point values).

Field Summary

Fields

Modifier and Type	Field and Description
protected int	homePosition The beginning of the row packet
protected int	lastRequestedIndex The last-requested index, used as an optimization, if you ask for the same index, we won't seek to find it.
protected int	lastRequestedPos The position of the last-requested index, optimization in concert with lastRequestedIndex.
protected NativePacketPayload	rowFromServer

Fields inherited from class com.mysql.cj.protocol.result.AbstractResultsetRow

exceptionInterceptor, metadata, valueDecoder, wasNull

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractBufferRow(ExceptionInterceptor exceptionInterceptor)

Method Summary

Methods inherited from class com.mysql.cj.protocol.result.AbstractResultsetRow

getValueFromBytes, setMetadata, wasNull

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Methods inherited from interface com.mysql.cj.protocol.ResultsetRow

isBinaryEncoded

Methods inherited from interface com.mysql.cj.result.Row

getBytes, getNull, getValue, setBytes

Field Detail

rowFromServer

protected NativePacketPayload rowFromServer

homePosition

protected int homePosition

The beginning of the row packet

lastRequestedIndex

protected int lastRequestedIndex

The last-requested index, used as an optimization, if you ask for the same index, we won't seek to find it. If you ask for an index that is greater than the last one requested, we start seeking from the last requested index.

lastRequestedPos

protected int lastRequestedPos

The position of the last-requested index, optimization in concert with lastRequestedIndex.

Constructor Detail

AbstractBufferRow

protected AbstractBufferRow(ExceptionInterceptor exceptionInterceptor)