com.antelmann.db
Class Keyword

java.lang.Object
  com.antelmann.db.AbstractDBEntry
      com.antelmann.db.Keyword

All Implemented Interfaces:

DBEntry, Tag, Serializable, Comparable<Keyword>

Direct Known Subclasses:

GTag

public class Keyword
extends AbstractDBEntry
implements Tag, Comparable<Keyword>

implements a Group/Tag solely based on a String that also represents the ID for the DBEntry it is. To easily be able to handle subclasses (as there may be multiple groups in an application), a convenience method is provided (createNewTag(Class, Object)) that assumes that subclasses also have a constructor that takes a single String or a single Object.

Since:

07.11.2008, 12:02:14

Author:

Holger Antelmann

See Also:

TaggableMapping, Serialized Form

Field Summary

Fields inherited from interface com.antelmann.db.DBEntry

ENTRY_FLAVOR, ENTRY_LIST_FLAVOR

Constructor Summary

Keyword(Object name)

Keyword(String name)

Method Summary

int	compareTo(Keyword kw)
static <T extends Keyword> T	createNewTag(Class<T> type, Object idAndName) allows to easily construct subclasses of Keyword assuming that these classes have a constructor taking a single Object argument - just as Keyword itself.
String	getTagName()
static <T extends Keyword> void	removeAllTags(Taggable<T> entry)
String	toString()

Methods inherited from class com.antelmann.db.AbstractDBEntry

equals, getID, hashCode, hashEntry, sameEntry

Methods inherited from class java.lang.Object

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

Constructor Detail

Keyword

public Keyword(Object name)

Keyword

public Keyword(String name)

Method Detail

getTagName

public String getTagName()

Specified by:

getTagName in interface Tag

compareTo

public int compareTo(Keyword kw)

Specified by:

compareTo in interface Comparable<Keyword>

toString

public String toString()

Overrides:

toString in class AbstractDBEntry

removeAllTags

public static <T extends Keyword> void removeAllTags(Taggable<T> entry)

createNewTag

public static <T extends Keyword> T createNewTag(Class<T> type,
                                                 Object idAndName)

allows to easily construct subclasses of Keyword assuming that these classes have a constructor taking a single Object argument - just as Keyword itself.

Type Parameters:

T - the type that is to be created

Parameters:

type - specifies the class used to construct the new instance

idAndName - the String that is passed to the constructor

Returns:

a new instance of type T based on reflection