org.apache.seatunnel.api.table.catalog

类 Column

java.lang.Object

org.apache.seatunnel.api.table.catalog.Column

所有已实现的接口:

Serializable

直接已知子类:

MetadataColumn, PhysicalColumn

public abstract class Column
extends Object
implements Serializable

Represent the column of TableSchema.

另请参阅:

PhysicalColumn, MetadataColumn, 序列化表格

字段概要

字段

限定符和类型	字段和说明
protected Long	bitLen Bit length *
protected Integer	columnLength
protected String	comment
protected SeaTunnelDataType<?>	dataType Data type of the column.
protected Object	defaultValue The default value of the column.
protected boolean	isUnsigned Unsigned bit *
protected boolean	isZeroFill Whether to use the 0 bit *
protected Long	longColumnLength integer may be cross the border *
protected String	name column name.
protected boolean	nullable Does the column can be null
protected Map<String,Object>	options your options *
protected String	sourceType Field type in the database *

构造器概要

构造器

限定符	构造器和说明
protected	Column(String name, SeaTunnelDataType<?> dataType, Integer columnLength, boolean nullable, Object defaultValue, String comment)
protected	Column(String name, SeaTunnelDataType<?> dataType, Integer columnLength, boolean nullable, Object defaultValue, String comment, String sourceType, boolean isUnsigned, boolean isZeroFill, Long bitLen, Long longColumnLength, Map<String,Object> options)

方法概要

限定符和类型	方法和说明
abstract Column	copy() Returns a copy of the column.
abstract Column	copy(SeaTunnelDataType<?> newType) Returns a copy of the column with a replaced SeaTunnelDataType.
abstract boolean	isPhysical() Returns whether the given column is a physical column of a table; neither computed nor metadata.
abstract Column	rename(String newColumnName) Returns a copy of the column with a replaced name.

从类继承的方法 java.lang.Object

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

字段详细资料

name

protected final String name

column name.

dataType

protected final SeaTunnelDataType<?> dataType

Data type of the column.

columnLength

protected final Integer columnLength

nullable

protected final boolean nullable

Does the column can be null

defaultValue

protected final Object defaultValue

The default value of the column.

comment

protected final String comment

sourceType

protected final String sourceType

Field type in the database *

isUnsigned

protected final boolean isUnsigned

Unsigned bit *

isZeroFill

protected final boolean isZeroFill

Whether to use the 0 bit *

bitLen

protected final Long bitLen

Bit length *

longColumnLength

protected final Long longColumnLength

integer may be cross the border *

options

protected final Map<String,Object> options

your options *

构造器详细资料

Column

protected Column(String name,
                 SeaTunnelDataType<?> dataType,
                 Integer columnLength,
                 boolean nullable,
                 Object defaultValue,
                 String comment)

Column

protected Column(String name,
                 SeaTunnelDataType<?> dataType,
                 Integer columnLength,
                 boolean nullable,
                 Object defaultValue,
                 String comment,
                 String sourceType,
                 boolean isUnsigned,
                 boolean isZeroFill,
                 Long bitLen,
                 Long longColumnLength,
                 Map<String,Object> options)

方法详细资料

isPhysical

public abstract boolean isPhysical()

Returns whether the given column is a physical column of a table; neither computed nor metadata.

copy

public abstract Column copy(SeaTunnelDataType<?> newType)

Returns a copy of the column with a replaced SeaTunnelDataType.

copy

public abstract Column copy()

Returns a copy of the column.

rename

public abstract Column rename(String newColumnName)

Returns a copy of the column with a replaced name.