org.mycore.datamodel.classifications2.impl
Class MCRAbstractCategoryImpl

java.lang.Object
  org.mycore.datamodel.classifications2.impl.MCRAbstractCategoryImpl

All Implemented Interfaces:

MCRCategory

Direct Known Subclasses:

MCRCategoryImpl

public abstract class MCRAbstractCategoryImpl
extends Object
implements MCRCategory

Since:

2.0

Version:

$Revision: 14980 $ $Date: 2009-03-20 14:02:28 +0100 (Fri, 20 Mar 2009) $

Author:

Thomas Scheffler (yagee)

Field Summary

protected List<MCRCategory>	children
protected ReentrantReadWriteLock	childrenLock
protected Collection<MCRLabel>	labels
protected MCRCategory	parent
protected MCRCategory	root

Constructor Summary

MCRAbstractCategoryImpl()

Method Summary

(package private) void	detachFromParent()
List<MCRCategory>	getChildren() Returns a list of subcategories.
MCRLabel	getCurrentLabel()
MCRCategoryID	getId()
MCRLabel	getLabel(String lang)
Collection<MCRLabel>	getLabels()
MCRCategory	getParent() Returns the parent element
MCRCategory	getRoot() Returns root category (the classification).
URI	getURI() Returns the URI associated with this category.
boolean	hasChildren() Tells if this category has subcategories.
boolean	isCategory()
boolean	isClassification()
protected abstract void	setChildren(List<MCRCategory> children)
void	setId(MCRCategoryID id)
void	setParent(MCRCategory parent)
void	setURI(URI uri)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.mycore.datamodel.classifications2.MCRCategory

getLevel

Field Detail

root

protected MCRCategory root

parent

protected MCRCategory parent

labels

protected Collection<MCRLabel> labels

children

protected List<MCRCategory> children

childrenLock

protected final ReentrantReadWriteLock childrenLock

Constructor Detail

MCRAbstractCategoryImpl

public MCRAbstractCategoryImpl()

Method Detail

getChildren

public List<MCRCategory> getChildren()

Description copied from interface: MCRCategory

Returns a list of subcategories. Implementors must never return null if no children are present. As this method may need a new call the underlaying persistence layer use hasChildren() if you just want to know if subcategories are present. Changes to the list may not affect the underlaying persistence layer.

Specified by:

getChildren in interface MCRCategory

Returns:

subcategories

See Also:

MCRCategory.hasChildren()

setChildren

protected abstract void setChildren(List<MCRCategory> children)

getId

public MCRCategoryID getId()

Specified by:

getId in interface MCRCategory

Returns:

the id

getLabels

public Collection<MCRLabel> getLabels()

Specified by:

getLabels in interface MCRCategory

Returns:

the labels

getRoot

public MCRCategory getRoot()

Description copied from interface: MCRCategory

Returns root category (the classification).

Specified by:

getRoot in interface MCRCategory

Returns:

the root category

getURI

public URI getURI()

Description copied from interface: MCRCategory

Returns the URI associated with this category.

Specified by:

getURI in interface MCRCategory

Returns:

the URI

hasChildren

public boolean hasChildren()

Description copied from interface: MCRCategory

Tells if this category has subcategories.

Specified by:

hasChildren in interface MCRCategory

Returns:

true if this category has subcategories

See Also:

MCRCategory.getChildren()

isCategory

public final boolean isCategory()

Specified by:

isCategory in interface MCRCategory

Returns:

true if this is not a root category

See Also:

MCRCategory.isClassification()

isClassification

public final boolean isClassification()

Specified by:

isClassification in interface MCRCategory

Returns:

true if this is a root category

setId

public void setId(MCRCategoryID id)

Specified by:

setId in interface MCRCategory

Parameters:

id - the id to set

setURI

public void setURI(URI uri)

Specified by:

setURI in interface MCRCategory

Parameters:

uri - the URI to set

getParent

public MCRCategory getParent()

Description copied from interface: MCRCategory

Returns the parent element

Specified by:

getParent in interface MCRCategory

Returns:

the categories parent or null if isClassification()==true or category currently not attached

setParent

public void setParent(MCRCategory parent)

detachFromParent

void detachFromParent()

getCurrentLabel

public MCRLabel getCurrentLabel()

Specified by:

getCurrentLabel in interface MCRCategory

Returns:

the label in the current language (if available), default language (if available) or any other language

getLabel

public MCRLabel getLabel(String lang)

Specified by:

getLabel in interface MCRCategory

Returns:

the label in the specified language (if available) or null