org.crosswire.jsword.passage
Class DefaultLeafKeyList

java.lang.Object
  org.crosswire.jsword.passage.DefaultLeafKeyList

All Implemented Interfaces:

Cloneable, Comparable, Iterable, Key

Direct Known Subclasses:

RawLDBackend.IndexKey, ReadingsKey

public class DefaultLeafKeyList
extends Object
implements Key

A simple default implementation of the Key interface.

Author:

Joe Walker [joe at eireneh dot com]

See Also:

for license details. The copyright to this program is held by it's authors.

Field Summary

private String	name The human readable string that this key represents
private String	osisName The OSIS version of this Key
private Key	parent The parent of this key

Constructor Summary

DefaultLeafKeyList(String name, String osisName)
Default ctor

DefaultLeafKeyList(String name, String osisName, Key parent)
Default ctor

Method Summary

void	addAll(Key key) Adds the specified element to this set if it is not already present.
void	blur(int by, RestrictionType restrict) Widen the range of the verses/keys in this list.
boolean	canHaveChildren() Returns true if the receiver is a leaf node and can not have children.
void	clear() Removes all of the elements from this set (optional operation).
Object	clone() This needs to be declared here so that it is visible as a method on a derived Key.
int	compareTo(Object obj)
boolean	contains(Key key) Returns true if this set contains the specified element.
boolean	equals(Object obj)
Key	get(int index) Gets a key from a specific point in this list.
int	getChildCount() Returns the number of elements in this set (its cardinality).
String	getName() A Human readable version of the Key.
String	getName(Key base) Translate the Key into a human readable string, with the assumption that the specified Key has just been output, so if we are in the same region, we do not need to display the region name, and so on.
String	getOsisID() The OSIS defined id specification for this Key.
String	getOsisRef() The OSIS defined reference specification for this Key.
Key	getParent() All keys have parents unless they are the root of a Key.
int	hashCode()
int	indexOf(Key that) Reverse a Key into the position the key holds in the list
boolean	isEmpty() Does this Passage have 0 members
Iterator	iterator()
void	removeAll(Key key) Removes the specified elements from this set if it is present.
void	retainAll(Key key) Removes all but the specified element from this set.
String	toString()

Methods inherited from class java.lang.Object

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

Field Detail

parent

private Key parent

The parent of this key

name

private String name

The human readable string that this key represents

osisName

private String osisName

The OSIS version of this Key

Constructor Detail

DefaultLeafKeyList

public DefaultLeafKeyList(String name,
                          String osisName)

Default ctor

DefaultLeafKeyList

public DefaultLeafKeyList(String name,
                          String osisName,
                          Key parent)

Default ctor

Method Detail

canHaveChildren

public boolean canHaveChildren()

Description copied from interface: Key

Returns true if the receiver is a leaf node and can not have children. Any attempt to add()/remove() wlll throw

Specified by:

canHaveChildren in interface Key

getName

public String getName()

Description copied from interface: Key

A Human readable version of the Key. For Biblical passages this uses short books names, and the shortest sensible rendering eg "Mat 3:1-4" and "Mar 1:1, 3, 5" and "3Jo, Jude"

Specified by:

getName in interface Key

Returns:

a String containing a description of the Key

getName

public String getName(Key base)

Description copied from interface: Key

Translate the Key into a human readable string, with the assumption that the specified Key has just been output, so if we are in the same region, we do not need to display the region name, and so on.

Specified by:

getName in interface Key

Parameters:

base - The key to use to cut down unnecessary output.

Returns:

The string representation

getOsisRef

public String getOsisRef()

Description copied from interface: Key

The OSIS defined reference specification for this Key. When the key is a single element, it is an OSIS book name with '.' separating the parts. When the key is multiple elements, it uses a range notation. Note, this will create a comma separated list of ranges, which is improper OSIS.

Specified by:

getOsisRef in interface Key

Returns:

a String containing the OSIS description of the verses

getOsisID

public String getOsisID()

Description copied from interface: Key

The OSIS defined id specification for this Key. When the key is a single element, it is an OSIS book name with '.' separating the parts. When the key is multiple elements, it uses a space to separate each.

Specified by:

getOsisID in interface Key

Returns:

a String containing the OSIS description of the verses

getParent

public Key getParent()

Description copied from interface: Key

All keys have parents unless they are the root of a Key.

Specified by:

getParent in interface Key

Returns:

The parent of this tree, or null if this Key is the root.

getChildCount

public int getChildCount()

Description copied from interface: Key

Returns the number of elements in this set (its cardinality). If this set contains more than Integer.MAX_VALUE elements, returns Integer.MAX_VALUE.

Specified by:

getChildCount in interface Key

Returns:

the number of elements in this set (its cardinality).

isEmpty

public boolean isEmpty()

Description copied from interface: Key

Does this Passage have 0 members

Specified by:

isEmpty in interface Key

Returns:

true if this set contains no elements.

contains

public boolean contains(Key key)

Description copied from interface: Key

Returns true if this set contains the specified element.

Specified by:

contains in interface Key

Parameters:

key - element whose presence in this set is to be tested.

Returns:

true if this set contains the specified element.

iterator

public Iterator iterator()

Specified by:

iterator in interface Iterable

addAll

public void addAll(Key key)

Description copied from interface: Key

Adds the specified element to this set if it is not already present.

Specified by:

addAll in interface Key

Parameters:

key - element to be added to this set.

removeAll

public void removeAll(Key key)

Description copied from interface: Key

Removes the specified elements from this set if it is present.

Specified by:

removeAll in interface Key

Parameters:

key - object to be removed from this set, if present.

retainAll

public void retainAll(Key key)

Description copied from interface: Key

Removes all but the specified element from this set.

Specified by:

retainAll in interface Key

Parameters:

key - object to be left in this set.

clear

public void clear()

Description copied from interface: Key

Removes all of the elements from this set (optional operation). This set will be empty after this call returns (unless it throws an exception).

Specified by:

clear in interface Key

get

public Key get(int index)

Description copied from interface: Key

Gets a key from a specific point in this list.

Specified by:

get in interface Key

Parameters:

index - The index of the Key to retrieve

Returns:

The specified key

indexOf

public int indexOf(Key that)

Description copied from interface: Key

Reverse a Key into the position the key holds in the list

Specified by:

indexOf in interface Key

Parameters:

that - The Key to find

Returns:

The index of the key or -1 if the key is not in the list

blur

public void blur(int by,
                 RestrictionType restrict)

Description copied from interface: Key

Widen the range of the verses/keys in this list. This is primarily for "find x within n verses of y" type applications.

Specified by:

blur in interface Key

Parameters:

by - The number of verses/keys to widen by

restrict - How should we restrict the blurring?

See Also:

Passage

toString

public String toString()

Overrides:

toString in class Object

equals

public boolean equals(Object obj)

Overrides:

equals in class Object

hashCode

public int hashCode()

Overrides:

hashCode in class Object

compareTo

public int compareTo(Object obj)

Specified by:

compareTo in interface Comparable

clone

public Object clone()

Description copied from interface: Key

This needs to be declared here so that it is visible as a method on a derived Key.

Specified by:

clone in interface Key

Overrides:

clone in class Object

Returns:

A complete copy of ourselves