org.crosswire.jsword.passage
Class DefaultKeyList

java.lang.Object
  org.crosswire.jsword.passage.AbstractKeyList
      org.crosswire.jsword.passage.DefaultKeyList

All Implemented Interfaces:

Serializable, Cloneable, Comparable, Iterable, Key

public class DefaultKeyList
extends AbstractKeyList

A default implementation of Key.

This implementation uses java.util.TreeSet to store keys.

Author:

Joe Walker [joe at eireneh dot com]

See Also:

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

Nested Class Summary

Nested classes/interfaces inherited from class org.crosswire.jsword.passage.AbstractKeyList

AbstractKeyList.NameVisitor, AbstractKeyList.OsisIDVisitor, AbstractKeyList.OsisRefVisitor

Field Summary

private List	keys The store of Keys
private static Logger	log The log stream
private Key	parent The parent of this key
private static long	serialVersionUID Serialization ID

Constructor Summary

DefaultKeyList()
Simple ctor

DefaultKeyList(Key parent, String name)
Simple 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).
boolean	contains(Key key) Returns true if this set contains the specified element.
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).
Key	getParent() All keys have parents unless they are the root of a Key.
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.

Methods inherited from class org.crosswire.jsword.passage.AbstractKeyList

clone, compareTo, getName, getName, getOsisID, getOsisRef, retain, retainAll, setName, toString

Methods inherited from class java.lang.Object

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

Field Detail

parent

private Key parent

The parent of this key

keys

private List keys

The store of Keys

serialVersionUID

private static final long serialVersionUID

Serialization ID

See Also:

Constant Field Values

log

private static final Logger log

The log stream

Constructor Detail

DefaultKeyList

public DefaultKeyList()

Simple ctor

DefaultKeyList

public DefaultKeyList(Key parent,
                      String name)

Simple 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

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.

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

Overrides:

isEmpty in class AbstractKeyList

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

Overrides:

contains in class AbstractKeyList

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()

addAll

public void addAll(Key key)

Description copied from interface: Key

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

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.

Parameters:

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

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).

get

public Key get(int index)

Description copied from interface: Key

Gets a key from a specific point in this list.

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

Parameters:

that - The Key to find

Returns:

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

getParent

public Key getParent()

Description copied from interface: Key

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

Returns:

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

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.

Parameters:

by - The number of verses/keys to widen by

restrict - How should we restrict the blurring?

See Also:

Passage