org.axiondb
Class Column

java.lang.Object
  org.axiondb.Column

All Implemented Interfaces:

Serializable

public class Column

extends Object

implements Serializable

Describes a column within a Table.

Version:

$Revision: 1.27 $ $Date: 2004/09/09 23:47:45 $

See Also:

Serialized Form

Field Summary

static String	COLUMN_PRECISION_CONFIG_KEY Key for setting and retrieving the Precision in this column's configuration
static String	COLUMN_SCALE_CONFIG_KEY Key for setting and retrieving the Scale in this column's configuration
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 valuein this column's configuration
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	getName() Get the name of this column.
int	getScale()
int	getSize()
String	getSqlType()
boolean	hasDefault()
int	hashCode()
void	setScale(Integer size)
void	setSize(Integer size)
void	setSqlType(String type)
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

COLUMN_PRECISION_CONFIG_KEY

public static final String COLUMN_PRECISION_CONFIG_KEY

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

See Also:

Constant Field Values

COLUMN_SCALE_CONFIG_KEY

public static final String COLUMN_SCALE_CONFIG_KEY

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

See Also:

Constant Field Values

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

See Also:

Constant Field Values

DATA_TYPE_CONFIG_KEY

public static final String DATA_TYPE_CONFIG_KEY

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

See Also:

Constant Field Values

DEFAULT_VALUE_CONFIG_KEY

public static final String DEFAULT_VALUE_CONFIG_KEY

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

See Also:

Constant Field Values

NAME_CONFIG_KEY

public static final String NAME_CONFIG_KEY

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

See Also:

Constant Field Values

Constructor Detail

Column

public Column(String name,
              DataType type)
       throws NullPointerException

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)
       throws NullPointerException

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

defaultValue - the default valuefor this column, which may be null

Throws:

NullPointerException - if either name or type is null

Method Detail

equals

public boolean equals(Object that)

Two Columns are equal if they have the same name.

getConfiguration

public Map getConfiguration()

getDataType

public DataType getDataType()

Get the DataTypeof this column.

getDefault

public Selectable getDefault()

getName

public String getName()

Get the name of this column.

getScale

public int getScale()

getSize

public int getSize()

getSqlType

public String getSqlType()

hasDefault

public boolean hasDefault()

hashCode

public int hashCode()

setScale

public void setScale(Integer size)

setSize

public void setSize(Integer size)

setSqlType

public void setSqlType(String type)

toString

public String toString()