java.text
Class PatternEntry

java.lang.Object
  java.text.PatternEntry

class PatternEntry

extends Object

Utility class for normalizing and merging patterns for collation. This is to be used with MergeCollation for adding patterns to an existing rule table.

Author:

Mark Davis, Helena Shih

See Also:

MergeCollation

Nested Class Summary

(package private) static class

PatternEntry.Parser

Field Summary

(package private) String	chars
(package private) String	extension
(package private) static int	RESET
(package private) int	strength
(package private) static int	UNSET

Constructor Summary

(package private)

PatternEntry(int strength, StringBuffer chars, StringBuffer extension)

Method Summary

(package private) void	addToBuffer(StringBuffer toAddTo, boolean showExtension, boolean showWhiteSpace, PatternEntry lastEntry)
(package private) static void	appendQuoted(String chars, StringBuffer toAddTo)
void	appendQuotedChars(StringBuffer toAddTo) Gets the current chars, quoted
void	appendQuotedExtension(StringBuffer toAddTo) Gets the current extension, quoted
boolean	equals(Object obj) WARNING this is used for searching in a Vector.
(package private) String	getChars() Gets the core characters of the entry.
(package private) String	getExtension() Gets the expanding characters of the entry.
(package private) int	getStrength() Gets the strength of the entry.
int	hashCode() Returns a hash code value for the object.
(package private) static boolean	isSpecialChar(char ch)
String	toString() For debugging.

Methods inherited from class java.lang.Object

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

Field Detail

RESET

static final int RESET

See Also:

Constant Field Values

UNSET

static final int UNSET

See Also:

Constant Field Values

strength

int strength

chars

String chars

extension

String extension

Constructor Detail

PatternEntry

PatternEntry(int strength,
             StringBuffer chars,
             StringBuffer extension)

Method Detail

appendQuotedExtension

public void appendQuotedExtension(StringBuffer toAddTo)

Gets the current extension, quoted

appendQuotedChars

public void appendQuotedChars(StringBuffer toAddTo)

Gets the current chars, quoted

equals

public boolean equals(Object obj)

WARNING this is used for searching in a Vector. Because Vector.indexOf doesn't take a comparator, this method is ill-defined and ignores strength.

Overrides:

equals in class Object

Parameters:

obj - the reference object with which to compare.

Returns:

true if this object is the same as the obj argument; false otherwise.

See Also:

Object.hashCode(), Hashtable

hashCode

public int hashCode()

Description copied from class: Object

Returns a hash code value for the object. This method is supported for the benefit of hashtables such as those provided by java.util.Hashtable.

The general contract of hashCode is:

• Whenever it is invoked on the same object more than once during an execution of a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
• If two objects are equal according to the equals(Object) method, then calling the hashCode method on each of the two objects must produce the same integer result.
• It is not required that if two objects are unequal according to the Object.equals(java.lang.Object) method, then calling the hashCode method on each of the two objects must produce distinct integer results. However, the programmer should be aware that producing distinct integer results for unequal objects may improve the performance of hashtables.

As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the Java^TM programming language.)

Overrides:

hashCode in class Object

Returns:

a hash code value for this object.

See Also:

Object.equals(java.lang.Object), Hashtable

toString

public String toString()

For debugging.

Overrides:

toString in class Object

Returns:

a string representation of the object.

getStrength

final int getStrength()

Gets the strength of the entry.

getExtension

final String getExtension()

Gets the expanding characters of the entry.

getChars

final String getChars()

Gets the core characters of the entry.

addToBuffer

void addToBuffer(StringBuffer toAddTo,
                 boolean showExtension,
                 boolean showWhiteSpace,
                 PatternEntry lastEntry)

appendQuoted

static void appendQuoted(String chars,
                         StringBuffer toAddTo)

isSpecialChar

static boolean isSpecialChar(char ch)