org.axiondb

Class Column

public class Column extends Object implements Serializable

Describes a column within a Table.

Version: $Revision: 1.34 $ $Date: 2005/12/20 18:32:40 $

Author: Chuck Burdick Rodney Waldhoff Ahimanikya Satapathy

Field Summary
static String	COLUMN_SQL_TYPE_CONFIG_KEY Key for setting and retrieving the sqlType in this column's configuration
static String	DATA_TYPE_CONFIG_KEY Key for setting and retrieving the DataTypein this column's configuration
static String	DEFAULT_VALUE_CONFIG_KEY Key for setting and retrieving the `default value`in this column's configuration
static String	GENERATED_ALWAYS
static String	GENERATED_BY_DEFAULT
static String	GENERATED_COLUMN_TYPE Key for setting and retrieving generated column expression
static String	IDENTITY_GENERATION_TYPE Key for setting and retrieving the Identity column generation type
static String	NAME_CONFIG_KEY Key for setting and retrieving the name in this column's configuration

Constructor Summary
	Column(String name, DataType type) Create column with the given name and type .
	Column(String name, DataType type, Selectable defaultValue) Create column with the given name and type .

Method Summary
boolean	equals(Object that) Two Columns are equal if they have the same name.
Map	getConfiguration()
DataType	getDataType() Get the DataTypeof this column.
Selectable	getDefault()
String	getGeneratedColType()
String	getIdentityType()
String	getName() Get the name of this column.
int	getScale()
int	getSize()
String	getSqlType()
boolean	hasDefault()
int	hashCode()
boolean	isDerivedColumn()
boolean	isGeneratedAlways()
boolean	isGeneratedByDefault()
boolean	isIdentityColumn()
void	setGeneratedColType(String type)
void	setIdentityType(String type)
void	setSqlType(String type)
String	toString()

Field Detail

COLUMN_SQL_TYPE_CONFIG_KEY

public static final String COLUMN_SQL_TYPE_CONFIG_KEY

Key for setting and retrieving the sqlType in this column's configuration

DATA_TYPE_CONFIG_KEY

public static final String DATA_TYPE_CONFIG_KEY

Key for setting and retrieving the DataTypein this column's configuration

DEFAULT_VALUE_CONFIG_KEY

public static final String DEFAULT_VALUE_CONFIG_KEY

Key for setting and retrieving the default valuein this column's configuration

GENERATED_ALWAYS

public static final String GENERATED_ALWAYS

GENERATED_BY_DEFAULT

public static final String GENERATED_BY_DEFAULT

GENERATED_COLUMN_TYPE

public static final String GENERATED_COLUMN_TYPE

Key for setting and retrieving generated column expression

IDENTITY_GENERATION_TYPE

public static final String IDENTITY_GENERATION_TYPE

Key for setting and retrieving the Identity column generation type

NAME_CONFIG_KEY

public static final String NAME_CONFIG_KEY

Key for setting and retrieving the name in this column's configuration

Constructor Detail

Column

public Column(String name, DataType type)

Create column with the given name and type .

Parameters: name the name of this column, which MUST NOT be null type the DataTypeof this column, which MUST NOT be null

Throws: NullPointerException if either parameter is null

Column

public Column(String name, DataType type, Selectable defaultValue)

Create column with the given name and type .

Parameters: name the name of this column, which MUST NOT be null type the DataTypeof this column, which MUST NOT be null config name-value pairs that configure this column defaultValue the default valuefor this column, which may be null

Throws: NullPointerException if either name or type is null