org.apache.gravitino.rel

Class Column.ColumnImpl

java.lang.Object

org.apache.gravitino.rel.Column.ColumnImpl

All Implemented Interfaces:

Column

Enclosing interface:

Column

public static class Column.ColumnImpl
extends java.lang.Object
implements Column

The implementation of Column for users to use API.

Nested Class Summary

Nested classes/interfaces inherited from interface org.apache.gravitino.rel.Column

Column.ColumnImpl

Field Summary

Fields inherited from interface org.apache.gravitino.rel.Column

DEFAULT_VALUE_NOT_SET, DEFAULT_VALUE_OF_CURRENT_TIMESTAMP

Method Summary

Modifier and Type	Method and Description
boolean	autoIncrement()
java.lang.String	comment()
Type	dataType()
Expression	defaultValue()
boolean	equals(java.lang.Object o)
int	hashCode()
java.lang.String	name()
boolean	nullable()

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.apache.gravitino.rel.Column

of, of, of, of, supportsTags

Method Detail

name

public java.lang.String name()

Specified by:

name in interface Column

Returns:

The name of this column.

dataType

public Type dataType()

Specified by:

dataType in interface Column

Returns:

The data type of this column.

comment

public java.lang.String comment()

Specified by:

comment in interface Column

Returns:

The comment of this column, null if not specified.

nullable

public boolean nullable()

Specified by:

nullable in interface Column

Returns:

True if this column may produce null values. Default is true.

autoIncrement

public boolean autoIncrement()

Specified by:

autoIncrement in interface Column

Returns:

True if this column is an auto-increment column. Default is false.

defaultValue

public Expression defaultValue()

Specified by:

defaultValue in interface Column

Returns:

The default value of this column, Column.DEFAULT_VALUE_NOT_SET if not specified

equals

public boolean equals(java.lang.Object o)

Overrides:

equals in class java.lang.Object

hashCode

public int hashCode()

Overrides:

hashCode in class java.lang.Object