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JDK 1.1 Source Code Directory
JDK 1.1 source code directory contains Java source code for JDK 1.1 core classes: "C:\fyicenter\jdk-1.1.8\src".
Here is the list of Java classes of the JDK 1.1 source code:
✍: FYIcenter
⏎ java/text/Collator.java
/* * @(#)Collator.java 1.15 01/12/10 * * (C) Copyright Taligent, Inc. 1996 - All Rights Reserved * (C) Copyright IBM Corp. 1996 - All Rights Reserved * * Portions copyright (c) 2002 Sun Microsystems, Inc. All Rights Reserved. * * The original version of this source code and documentation is copyrighted * and owned by Taligent, Inc., a wholly-owned subsidiary of IBM. These * materials are provided under terms of a License Agreement between Taligent * and Sun. This technology is protected by multiple US and International * patents. This notice and attribution to Taligent may not be removed. * Taligent is a registered trademark of Taligent, Inc. * * Permission to use, copy, modify, and distribute this software * and its documentation for NON-COMMERCIAL purposes and without * fee is hereby granted provided that this copyright notice * appears in all copies. Please refer to the file "copyright.html" * for further important copyright and licensing information. * * SUN MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY OF * THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED * TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A * PARTICULAR PURPOSE, OR NON-INFRINGEMENT. SUN SHALL NOT BE LIABLE FOR * ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR * DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES. * */ package java.text; import java.io.Serializable; import java.util.Locale; import java.util.MissingResourceException; import java.util.ResourceBundle; import java.text.resources.*; import java.util.Hashtable; /** * The <code>Collator</code> class performs locale-sensitive * <code>String</code> comparison. You use this class to build * searching and sorting routines for natural language text. * * <p> * <code>Collator</code> is an abstract base class. Subclasses * implement specific collation strategies. One subclass, * <code>RuleBasedCollator</code>, is currently provided with * the JDK and is applicable to a wide set of languages. Other * subclasses may be created to handle more specialized needs. * * <p> * Like other locale-sensitive classes, you can use the static * factory method, <code>getInstance</code>, to obtain the appropriate * <code>Collator</code> object for a given locale. You will only need * to look at the subclasses of <code>Collator</code> if you need * to understand the details of a particular collation strategy or * if you need to modify that strategy. * * <p> * The following example shows how to compare two strings using * the <code>Collator</code> for the default locale. * <blockquote> * <pre> * // Compare two strings in the default locale * Collator myCollator = Collator.getInstance(); * if( myCollator.compare("abc", "ABC") < 0 ) * System.out.println("abc is less than ABC"); * else * System.out.println("abc is greater than or equal to ABC"); * </pre> * </blockquote> * * <p> * You can set a <code>Collator</code>'s <em>strength</em> property * to determine the level of difference considered significant in * comparisons. Four strengths are provided: <code>PRIMARY</code>, * <code>SECONDARY</code>, <code>TERTIARY</code>, and <code>IDENTICAL</code>. * The exact assignment of strengths to language features is * locale dependant. For example, in Czech, "e" and "f" are considered * primary differences, while "e" and "\u00EA" are secondary differences, * "e" and "E" are tertiary differences and "e" and "e" are identical. * The following shows how both case and accents could be ignored for * US English. * <blockquote> * <pre> * //Get the Collator for US English and set its strength to PRIMARY * Collator usCollator = Collator.getInstance(Locale.US); * usCollator.setStrength(Collator.PRIMARY); * if( usCollator.compare("abc", "ABC") == 0 ) { * System.out.println("Strings are equivalent"); * } * </pre> * </blockquote> * <p> * For comparing <code>String</code>s exactly once, the <code>compare</code> * method provides the best performance. When sorting a list of * <code>String</code>s however, it is generally necessary to compare each * <code>String</code> multiple times. In this case, <code>CollationKey</code>s * provide better performance. The <code>CollationKey</code> class converts * a <code>String</code> to a series of bits that can be compared bitwise * against other <code>CollationKey</code>s. A <code>CollationKey</code> is * created by a <code>Collator</code> object for a given <code>String</code>. * <br> * <strong>Note:</strong> <code>CollationKey</code>s from different * <code>Collator</code>s can not be compared. See the class description * for <a href="java.text.CollationKey.html"><code>CollationKey</code></a> * for an example using <code>CollationKey</code>s. * * @see RuleBasedCollator * @see CollationKey * @see CollationElementIterator * @see Locale * @version 1.15 12/10/01 * @author Helena Shih */ public abstract class Collator implements Cloneable, Serializable { /** * Collator strength value. When set, only PRIMARY differences are * considered significant during comparison. The assignment of strengths * to language features is locale dependant. A common example is for * different base letters ("a" vs "b") to be considered a PRIMARY difference. * @see java.text.Collator#setStrength * @see java.text.Collator#getStrength */ public final static int PRIMARY = 0; /** * Collator strength value. When set, only SECONDARY and above differences are * considered significant during comparison. The assignment of strengths * to language features is locale dependant. A common example is for * different accented forms of the same base letter ("a" vs "\u00E4") to be * considered a SECONDARY difference. * @see java.text.Collator#setStrength * @see java.text.Collator#getStrength */ public final static int SECONDARY = 1; /** * Collator strength value. When set, only TERTIARY and above differences are * considered significant during comparison. The assignment of strengths * to language features is locale dependant. A common example is for * case differences ("a" vs "A") to be considered a TERTIARY difference. * @see java.text.Collator#setStrength * @see java.text.Collator#getStrength */ public final static int TERTIARY = 2; /** * Collator strength value. When set, all differences are * considered significant during comparison. The assignment of strengths * to language features is locale dependant. A common example is for control * characters ("\u0001" vs "\u0002") to be considered equal at the * PRIMARY, SECONDARY, and TERTIARY levels but different at the IDENTICAL * level. Additionally, differences between pre-composed accents such as * "\u00C0" (A-grave) and combining accents such as "A\u0300" * (A, combining-grave) will be considered significant at the tertiary * level if decomposition is set to NO_DECOMPOSITION. */ public final static int IDENTICAL = 3; /** * Decomposition mode value. With NO_DECOMPOSITION * set, accented characters will not be decomposed for collation. This * provides the fastest collation but will only produce correct results * for languages that do not use accents. * @see java.text.Collator#getDecomposition * @see java.text.Collator#setDecomposition */ public final static int NO_DECOMPOSITION = 0; /** * Decomposition mode value. With CANONICAL_DECOMPOSITION * set, characters that are canonical variants according to Unicode 2.0 * will be decomposed for collation. This is the default setting and * should be used to get correct collation of accented characters. * @see java.text.Collator#getDecomposition * @see java.text.Collator#setDecomposition */ public final static int CANONICAL_DECOMPOSITION = 1; /** * Decomposition mode value. With FULL_DECOMPOSITION * set, both Unicode canonical variants and Unicode compatibility variants * will be decomposed for collation. This causes not only accented * characters to be collated, but also characters that have special formats * to be collated with their norminal form. For example, the half-width and * full-width ASCII and Katakana characters are then collated together. * FULL_DECOMPOSITION is the most complete and therefore the slowest * decomposition mode. * @see java.text.Collator#getDecomposition * @see java.text.Collator#setDecomposition */ public final static int FULL_DECOMPOSITION = 2; /** * Gets the Collator for the current default locale. * The default locale is determined by java.util.Locale.getDefault. * @return the Collator for the default locale.(for example, en_US) * @see java.util.Locale#getDefault */ public static synchronized Collator getInstance() { return getInstance(Locale.getDefault()); } /** * Gets the Collator for the desired locale. * @param desiredLocale the desired locale. * @return the Collator for the desired locale. * @see java.util.Locale * @see java.util.ResourceBundle */ public static synchronized Collator getInstance(Locale desiredLocale) { RuleBasedCollator result = null; result = (RuleBasedCollator) cache.get(desiredLocale); if (result != null) { return (Collator)result.clone(); // make the world safe } // Load the resource of the desired locale from resource // manager. String colString; try { ResourceBundle resource = ResourceBundle.getBundle ("java.text.resources.LocaleElements", desiredLocale); colString = resource.getString("CollationElements"); } catch (MissingResourceException e) { // return default US collation colString = ""; } try { result = new RuleBasedCollator( CollationRules.DEFAULTRULES + colString ); } catch(ParseException foo) { // predefined tables should contain correct grammar try { result = new RuleBasedCollator( CollationRules.DEFAULTRULES ); } catch (ParseException bar) { // do nothing } } cache.put(desiredLocale,result); return result; } /** * Compares the source string to the target string according to the * collation rules for this Collator. Returns an integer less than, * equal to or greater than zero depending on whether the source String is * less than, equal to or greater than the target string. See the Collator * class description for an example of use. * <p> * For a one time comparison, this method has the best performance. If a * given String will be involved in multiple comparisons, CollationKey.compareTo * has the best performance. See the Collator class description for an example * using CollationKeys. * @param source the source string. * @param target the target string. * @return Returns an integer value. Value is less than zero if source is less than * target, value is zero if source and target are equal, value is greater than zero * if source is greater than target. * @see java.text.CollationKey * @see java.text.Collator#getCollationKey */ public abstract int compare(String source, String target); /** * Transforms the String into a series of bits that can be compared bitwise * to other CollationKeys. CollationKeys provide better performance than * Collator.compare when Strings are involved in multiple comparisons. * See the Collator class description for an example using CollationKeys. * @param source the string to be transformed into a collation key. * @return the CollationKey for the given String based on this Collator's collation * rules. If the source String is null, a null CollationKey is returned. * @see java.text.CollationKey * @see java.text.Collator#compare */ public abstract CollationKey getCollationKey(String source); /** * Convenience method for comparing the equality of two strings based on * this Collator's collation rules. * @param source the source string to be compared with. * @param target the target string to be compared with. * @return true if the strings are equal according to the collation * rules. false, otherwise. * @see java.text.Collator#compare */ public boolean equals(String source, String target) { return (compare(source, target) == Collator.EQUAL); } /** * Returns this Collator's strength property. The strength property determines * the minimum level of difference considered significant during comparison. * See the Collator class description for an example of use. * @return this Collator's current strength property. * @see java.text.Collator#setStrength * @see java.text.Collator#PRIMARY * @see java.text.Collator#SECONDARY * @see java.text.Collator#TERTIARY * @see java.text.Collator#IDENTICAL */ public synchronized int getStrength() { return strength; } /** * Sets this Collator's strength property. The strength property determines * the minimum level of difference considered significant during comparison. * See the Collator class description for an example of use. * @param the new strength value. * @see java.text.Collator#getStrength * @see java.text.Collator#PRIMARY * @see java.text.Collator#SECONDARY * @see java.text.Collator#TERTIARY * @see java.text.Collator#IDENTICAL * @exception IllegalArgumentException If the new strength value is not one of * PRIMARY, SECONDARY, TERTIARY or IDENTICAL. */ public synchronized void setStrength(int newStrength) { if ((newStrength != PRIMARY) && (newStrength != SECONDARY) && (newStrength != TERTIARY) && (newStrength != IDENTICAL)) throw new IllegalArgumentException("Incorrect comparison level."); strength = newStrength; } /** * Get the decomposition mode of this Collator. Decomposition mode * determines how Unicode composed characters are handled. Adjusting * decomposition mode allows the user to select between faster and more * complete collation behavior. * <p>The three values for decomposition mode are: * <UL> * <LI>NO_DECOMPOSITION, * <LI>CANONICAL_DECOMPOSITION * <LI>FULL_DECOMPOSITION. * </UL> * See the documentation for these three constants for a description * of their meaning. * @return the decomposition mode * @see java.text.Collator#setDecomposition * @see java.text.Collator#NO_DECOMPOSITION * @see java.text.Collator#CANONICAL_DECOMPOSITION * @see java.text.Collator#FULL_DECOMPOSITION */ public synchronized int getDecomposition() { return decmp; } /** * Set the decomposition mode of this Collator. See getDecomposition * for a description of decomposition mode. * @param the new decomposition mode * @see java.text.Collator#getDecomposition * @see java.text.Collator#NO_DECOMPOSITION * @see java.text.Collator#CANONICAL_DECOMPOSITION * @see java.text.Collator#FULL_DECOMPOSITION * @exception IllegalArgumentException If the given value is not a valid decomposition * mode. */ public synchronized void setDecomposition(int decompositionMode) { if ((decompositionMode != NO_DECOMPOSITION) && (decompositionMode != CANONICAL_DECOMPOSITION) && (decompositionMode != FULL_DECOMPOSITION)) throw new IllegalArgumentException("Wrong decomposition mode."); decmp = decompositionMode; } /** * Get the set of Locales for which Collators are installed. * @return the list of available locales which collators are installed. */ public static synchronized Locale[] getAvailableLocales() { return LocaleData.getAvailableLocales("CollationElements"); } /** * Overrides Cloneable */ public Object clone() { try { return (Collator)super.clone(); } catch (CloneNotSupportedException e) { throw new InternalError(); } } /** * Compares the equality of two Collators. * @param that the Collator to be compared with this. * @return true if this Collator is the same as that Collator; * false otherwise. */ public boolean equals(Object that) { if (this == that) return true; if (that == null) return false; if (getClass() != that.getClass()) return false; Collator other = (Collator) that; return ((strength == other.strength) && (decmp == other.decmp)); } /** * Generates the hash code for this Collator. */ abstract public int hashCode(); /** * Default constructor. This constructor is * protected so subclasses can get access to it. Users typically create * a Collator sub-class by calling the factory method getInstance. * @see java.text.Collator#getInstance */ protected Collator() { strength = TERTIARY; decmp = CANONICAL_DECOMPOSITION; } private int strength = 0; private int decmp = 0; private static Hashtable cache = new Hashtable(); // // FIXME: These three constants should be removed. // /** * LESS is returned if source string is compared to be less than target * string in the compare() method. * @see java.text.Collator#compare */ final static int LESS = -1; /** * EQUAL is returned if source string is compared to be equal to target * string in the compare() method. * @see java.text.Collator#compare */ final static int EQUAL = 0; /** * GREATER is returned if source string is compared to be greater than * target string in the compare() method. * @see java.text.Collator#compare */ final static int GREATER = 1; // Proclaims serialization compatibility to 1.1. static final long serialVersionUID = -7718728969026499504L; }
⏎ java/text/Collator.java
Or download all of them as a single archive file:
File name: jdk-1.1.8-src.zip File size: 1574187 bytes Release date: 2018-11-16 Download
⇒ Backup JDK 1.1 Installation Directory
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