Class JsonColumn

java.lang.Object

org.mariadb.jdbc.message.server.ColumnDefinitionPacket

org.mariadb.jdbc.client.column.StringColumn

org.mariadb.jdbc.client.column.JsonColumn

All Implemented Interfaces:

Column, ColumnDecoder, ServerMessage

public class JsonColumn
extends StringColumn
implements ColumnDecoder

Column metadata definition

Field Summary

Fields inherited from class ColumnDefinitionPacket

charset, columnLength, dataType, decimals, extTypeFormat, extTypeName

Constructor Summary

Constructors

Modifier	Constructor	Description
protected	JsonColumn(JsonColumn prev)	Recreate new column using alias as name.
	JsonColumn(ReadableByteBuf buf, int charset, long length, DataType dataType, byte decimals, int flags, int[] stringPos, String extTypeName, String extTypeFormat)	JSON metadata type decoder

Method Summary

Modifier and Type	Method	Description
String	defaultClassname(Configuration conf)	Returns default class name depending on server column datatype
int	getColumnType(Configuration conf)	Returns default java.sql.Types depending on server column datatype
String	getColumnTypeName(Configuration conf)	Returns server column datatype
int	getDisplaySize()	get display size
JsonColumn	useAliasAsName()

Methods inherited from class StringColumn

decodeBooleanBinary, decodeBooleanText, decodeByteBinary, decodeByteText, decodeDateBinary, decodeDateText, decodeDoubleBinary, decodeDoubleText, decodeFloatBinary, decodeFloatText, decodeIntBinary, decodeIntText, decodeLongBinary, decodeLongText, decodeShortBinary, decodeShortText, decodeStringBinary, decodeStringText, decodeTimeBinary, decodeTimestampBinary, decodeTimestampText, decodeTimeText, getDefaultBinary, getDefaultText, getPrecision

Methods inherited from class ColumnDefinitionPacket

equals, getCatalog, getColumnAlias, getColumnLength, getColumnName, getDecimals, getExtTypeName, getFlags, getSchema, getTable, getTableAlias, getType, hasDefault, hashCode, isAutoIncrement, isBinary, isPrimaryKey, isSigned

Methods inherited from class Object

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

Methods inherited from interface Column

getCatalog, getColumnAlias, getColumnLength, getColumnName, getDecimals, getExtTypeName, getFlags, getSchema, getTable, getTableAlias, getType, hasDefault, isAutoIncrement, isBinary, isPrimaryKey, isSigned

Methods inherited from interface ColumnDecoder

decodeBooleanBinary, decodeBooleanText, decodeByteBinary, decodeByteText, decodeDateBinary, decodeDateText, decodeDoubleBinary, decodeDoubleText, decodeFloatBinary, decodeFloatText, decodeIntBinary, decodeIntText, decodeLongBinary, decodeLongText, decodeShortBinary, decodeShortText, decodeStringBinary, decodeStringText, decodeTimeBinary, decodeTimestampBinary, decodeTimestampText, decodeTimeText, getDefaultBinary, getDefaultText, getPrecision

Constructor Details

JsonColumn

public JsonColumn(ReadableByteBuf buf,
 int charset,
 long length,
 DataType dataType,
 byte decimals,
 int flags,
 int[] stringPos,
 String extTypeName,
 String extTypeFormat)

JSON metadata type decoder

Parameters:

buf - buffer

charset - charset

length - maximum data length

dataType - data type. see https://mariadb.com/kb/en/result-set-packets/#field-types

decimals - decimal length

flags - flags. see https://mariadb.com/kb/en/result-set-packets/#field-details-flag

stringPos - string offset position in buffer

extTypeName - extended type name

extTypeFormat - extended type format

JsonColumn

protected JsonColumn(JsonColumn prev)

Recreate new column using alias as name.

Parameters:

prev - current column

Method Details

getDisplaySize

public int getDisplaySize()

Description copied from interface: Column

get display size

Specified by:

getDisplaySize in interface Column

Overrides:

getDisplaySize in class StringColumn

Returns:

display sier

useAliasAsName

public JsonColumn useAliasAsName()

Specified by:

useAliasAsName in interface ColumnDecoder

Overrides:

useAliasAsName in class StringColumn

defaultClassname

public String defaultClassname(Configuration conf)

Description copied from interface: ColumnDecoder

Returns default class name depending on server column datatype

Specified by:

defaultClassname in interface ColumnDecoder

Overrides:

defaultClassname in class StringColumn

Parameters:

conf - configuration

Returns:

default class name

getColumnType

public int getColumnType(Configuration conf)

Description copied from interface: ColumnDecoder

Returns default java.sql.Types depending on server column datatype

Specified by:

getColumnType in interface ColumnDecoder

Overrides:

getColumnType in class StringColumn

Parameters:

conf - configuration

Returns:

default java.sql.Types

getColumnTypeName

public String getColumnTypeName(Configuration conf)

Description copied from interface: ColumnDecoder

Returns server column datatype

Specified by:

getColumnTypeName in interface ColumnDecoder

Overrides:

getColumnTypeName in class StringColumn

Parameters:

conf - configuration

Returns:

default server column datatype