org.crosswire.jsword.passage
Class ReadOnlyKeyList

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

All Implemented Interfaces:

Serializable, Cloneable, Comparable<Key>, Iterable<Key>, Key

public class ReadOnlyKeyList
extends Object
implements Key

A read-only wrapper around any writable implementation of Key.

Author:

Joe Walker

See Also:

The GNU Lesser General Public License for details., Serialized Form

Field Summary

private boolean	ignore Do we ignore write requests or throw?
private Key	keys The Key to which we proxy
private static long	serialVersionUID Serialization ID

Constructor Summary

ReadOnlyKeyList(Key keys, boolean ignore)
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 false if the receiver is a leaf node and can not have children.
void	clear() Removes all of the elements from this set (optional operation).
ReadOnlyKeyList	clone() This needs to be declared here so that it is visible as a method on a derived Key.
int	compareTo(Key o)
boolean	contains(Key key) Returns true if this set contains the specified element.
boolean	equals(Object obj) This needs to be declared here so that it is visible as a method on a derived Key.
Key	get(int index) Gets a key from a specific point in this list of children.
int	getCardinality() Returns the number of elements in this set (its cardinality).
int	getChildCount() Returns the number of children that this node has.
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.
String	getRootName() A Human readable version of the Key's top level name.
int	hashCode() This needs to be declared here so that it is visible as a method on a derived Key.
int	indexOf(Key that) Reverse a Key into the position the key holds in the list of children
boolean	isEmpty() Does this Key have 0 members
Iterator<Key>	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.

Methods inherited from class java.lang.Object

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

Field Detail

ignore

private boolean ignore

Do we ignore write requests or throw?

keys

private Key keys

The Key to which we proxy

serialVersionUID

private static final long serialVersionUID

Serialization ID

See Also:

Constant Field Values

Constructor Detail

ReadOnlyKeyList

public ReadOnlyKeyList(Key keys,
                       boolean ignore)

Simple ctor

Parameters:

keys - the keys

ignore -

Method Detail

getCardinality

public int getCardinality()

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.

This method is potentially expensive, as it often requires cycling through all the keys in the set.

Specified by:

getCardinality in interface Key

Returns:

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

canHaveChildren

public boolean canHaveChildren()

Description copied from interface: Key

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

Specified by:

canHaveChildren in interface Key

Returns:

true if the key can have children

getChildCount

public int getChildCount()

Description copied from interface: Key

Returns the number of children that this node has. Leaf nodes return 0.

Specified by:

getChildCount in interface Key

Returns:

the number of children for the node

isEmpty

public boolean isEmpty()

Description copied from interface: Key

Does this Key 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<Key> iterator()

Specified by:

iterator in interface Iterable<Key>

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

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, for example "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

getRootName

public String getRootName()

Description copied from interface: Key

A Human readable version of the Key's top level name. For Biblical passages this uses short books names. For a dictionary it might return A-Z.

Specified by:

getRootName 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

hashCode

public int hashCode()

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:

hashCode in interface Key

Overrides:

hashCode in class Object

Returns:

the hashcode

equals

public boolean equals(Object obj)

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:

equals in interface Key

Overrides:

equals in class Object

Returns:

true if equal

compareTo

public int compareTo(Key o)

Specified by:

compareTo in interface Comparable<Key>

get

public Key get(int index)

Description copied from interface: Key

Gets a key from a specific point in this list of children.

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 of children

Specified by:

indexOf in interface Key

Parameters:

that - The Key to find

Returns:

The index of the key or < 0 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.

Specified by:

getParent in interface 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.

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

clone

public ReadOnlyKeyList 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