com.mysql.cj.protocol.result

Class AbstractResultsetRow

java.lang.Object

com.mysql.cj.protocol.result.AbstractResultsetRow

All Implemented Interfaces:

ProtocolEntity, ResultsetRow, Row

Direct Known Subclasses:

AbstractBufferRow, ByteArrayRow

public abstract class AbstractResultsetRow
extends java.lang.Object
implements ResultsetRow

Field Summary

Fields

Modifier and Type	Field and Description
protected ExceptionInterceptor	exceptionInterceptor
protected ColumnDefinition	metadata The metadata of the fields of this result set.
protected ValueDecoder	valueDecoder
protected boolean	wasNull Did the previous value retrieval find a NULL?

Constructor Summary

Constructors

Modifier	Constructor and Description
protected	AbstractResultsetRow(ExceptionInterceptor exceptionInterceptor)

Method Summary

Modifier and Type	Method and Description
protected <T> T	getValueFromBytes(int columnIndex, byte[] bytes, int offset, int length, ValueFactory<T> vf) Get a value from a byte array.
Row	setMetadata(ColumnDefinition f) Set metadata to enable getValue functionality.
boolean	wasNull() Was the last value retrieved a NULL value?

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

exceptionInterceptor

protected ExceptionInterceptor exceptionInterceptor

metadata

protected ColumnDefinition metadata

The metadata of the fields of this result set.

valueDecoder

protected ValueDecoder valueDecoder

wasNull

protected boolean wasNull

Did the previous value retrieval find a NULL?

Constructor Detail

AbstractResultsetRow

protected AbstractResultsetRow(ExceptionInterceptor exceptionInterceptor)

Method Detail

getValueFromBytes

protected <T> T getValueFromBytes(int columnIndex,
                                  byte[] bytes,
                                  int offset,
                                  int length,
                                  ValueFactory<T> vf)

Get a value from a byte array. The byte array is interpreted by the ValueDecoder which uses the value factory create the return value.

Type Parameters:

T - value type

Parameters:

columnIndex - The (internal) index of the column

bytes - byte array

offset - offset into byte array

length - length of value in byte array

vf - value factory

Returns:

value

setMetadata

public Row setMetadata(ColumnDefinition f)

Description copied from interface: Row

Set metadata to enable getValue functionality.

Specified by:

setMetadata in interface Row

Parameters:

f - ColumnDefinition

Returns:

Row

wasNull

public boolean wasNull()

Description copied from interface: Row

Was the last value retrieved a NULL value?

Specified by:

wasNull in interface Row

Returns:

true if the last retrieved value was NULL.