org.virtualrepository.tabular

Class Column

java.lang.Object

org.virtualrepository.impl.PropertyHolder

org.virtualrepository.tabular.Column

All Implemented Interfaces:

Described

public class Column
extends PropertyHolder

A column in a Table.

Columns have qualified names, qualified kinds (categorical/role-based description), a data type, and zero and more properties.

Author:

Fabio Simeoni

Constructor Summary

Constructors

Constructor and Description
Column(QName name) Creates an instance with a given name.
Column(QName name, Class<?> type) Creates an instance with a given name and a given type.
Column(QName name, QName kind) Creates an instance with a given name and a given kind.
Column(QName name, QName kind, Class<?> type) Creates an instance with a given name, kind, and type.
Column(String name) Creates an instance with a given name.

Method Summary

Modifier and Type	Method and Description
boolean	equals(Object obj)
QName	getKind() Returns the kind of this column (null by default).
int	hashCode()
QName	name() Returns the name of this column.
static QName	q(String string) Adapts a String to a QName
void	setKind(QName kind) Sets the kind of this column (null by default)
void	setType(Class<?> type) Sets the type of this column, overriding the default (String by default)
String	toString()
Class<?>	type() Returns the type of this column ( String by default)

Methods inherited from class org.virtualrepository.impl.PropertyHolder

properties, properties

Methods inherited from class java.lang.Object

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

Constructor Detail

Column

public Column(QName name)

Creates an instance with a given name.

Parameters:

name - the name.

Column

public Column(String name)

Creates an instance with a given name.

Parameters:

name - the name.

Column

public Column(QName name,
              Class<?> type)

Creates an instance with a given name and a given type.

Parameters:

name - the name

type - the type

Column

public Column(QName name,
              QName kind)

Creates an instance with a given name and a given kind.

Parameters:

name -

kind -

Column

public Column(QName name,
              QName kind,
              Class<?> type)

Creates an instance with a given name, kind, and type.

Parameters:

name - the name

kind - the kind

type - the type

Method Detail

q

public static QName q(String string)

Adapts a String to a QName

Parameters:

string -

Returns:

the qualified name

name

public QName name()

Returns the name of this column.

Returns:

the name

getKind

public QName getKind()

Returns the kind of this column (null by default).

Returns:

the kind

setKind

public void setKind(QName kind)

Sets the kind of this column (null by default)

Parameters:

kind - the kind

type

public Class<?> type()

Returns the type of this column ( String by default)

Returns:

the type

setType

public void setType(Class<?> type)

Sets the type of this column, overriding the default (String by default)

Parameters:

type - the type

hashCode

public int hashCode()

Overrides:

hashCode in class PropertyHolder

equals

public boolean equals(Object obj)

Overrides:

equals in class PropertyHolder

toString

public String toString()

Overrides:

toString in class Object