| 1 | /* |
| 2 | * Copyright (C) Christian Schulte, 2012-253 |
| 3 | * All rights reserved. |
| 4 | * |
| 5 | * Redistribution and use in source and binary forms, with or without |
| 6 | * modification, are permitted provided that the following conditions |
| 7 | * are met: |
| 8 | * |
| 9 | * o Redistributions of source code must retain the above copyright |
| 10 | * notice, this list of conditions and the following disclaimer. |
| 11 | * |
| 12 | * o Redistributions in binary form must reproduce the above copyright |
| 13 | * notice, this list of conditions and the following disclaimer in |
| 14 | * the documentation and/or other materials provided with the |
| 15 | * distribution. |
| 16 | * |
| 17 | * THIS SOFTWARE IS PROVIDED "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, |
| 18 | * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY |
| 19 | * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL |
| 20 | * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY DIRECT, INDIRECT, |
| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | * |
| 28 | * $JOMC: JavaIdentifier.java 4804 2013-04-22 05:07:33Z schulte $ |
| 29 | * |
| 30 | */ |
| 31 | package org.jomc.model; |
| 32 | |
| 33 | import java.io.Serializable; |
| 34 | import java.lang.ref.Reference; |
| 35 | import java.lang.ref.SoftReference; |
| 36 | import java.text.MessageFormat; |
| 37 | import java.text.ParseException; |
| 38 | import java.util.ArrayList; |
| 39 | import java.util.HashMap; |
| 40 | import java.util.List; |
| 41 | import java.util.Locale; |
| 42 | import java.util.Map; |
| 43 | import java.util.ResourceBundle; |
| 44 | |
| 45 | /** |
| 46 | * Data type of a Java identifier. |
| 47 | * <p>This class provides support for parsing and normalizing text to java identifiers as specified in the Java |
| 48 | * Language Specification - Java SE 7 Edition - Chapter 3.8ff.</p> |
| 49 | * |
| 50 | * @author <a href="mailto:cs@schulte.it">Christian Schulte</a> |
| 51 | * @version $JOMC: JavaIdentifier.java 4804 2013-04-22 05:07:33Z schulte $ |
| 52 | * @see #normalize(java.lang.String, org.jomc.model.JavaIdentifier.NormalizationMode) |
| 53 | * @see #parse(java.lang.String) |
| 54 | * @see #valueOf(java.lang.String) |
| 55 | * @since 1.4 |
| 56 | */ |
| 57 | public final class JavaIdentifier implements CharSequence, Serializable |
| 58 | { |
| 59 | |
| 60 | /** |
| 61 | * Normalization modes. |
| 62 | * |
| 63 | * @author <a href="mailto:cs@schulte.it">Christian Schulte</a> |
| 64 | * @version $JOMC: JavaIdentifier.java 4804 2013-04-22 05:07:33Z schulte $ |
| 65 | * @since 1.4 |
| 66 | * @see JavaIdentifier#normalize(java.lang.String, org.jomc.model.JavaIdentifier.NormalizationMode) |
| 67 | */ |
| 68 | public static enum NormalizationMode |
| 69 | { |
| 70 | |
| 71 | /** Mode to normalize by compacting words using camel-case. */ |
| 72 | CAMEL_CASE, |
| 73 | /** Mode to normalize by separating words using '_' and by converting all characters to lower-case. */ |
| 74 | LOWER_CASE, |
| 75 | /** Mode to normalize by separating words using '_' and by converting all characters to upper-case. */ |
| 76 | UPPER_CASE, |
| 77 | /** |
| 78 | * Mode to normalize according to the |
| 79 | * <cite>Code Conventions for the Java Programming Language - 9 - Naming Conventions - Constants</cite>. |
| 80 | * <blockquote> |
| 81 | * The names of variables declared class constants and of ANSI constants should be all uppercase with words |
| 82 | * separated by underscores ("_"). (ANSI constants should be avoided, for ease of debugging.) |
| 83 | * </blockquote> |
| 84 | */ |
| 85 | CONSTANT_NAME_CONVENTION, |
| 86 | /** |
| 87 | * Mode to normalize according to the |
| 88 | * <cite>Code Conventions for the Java Programming Language - 9 - Naming Conventions - Methods</cite>. |
| 89 | * <blockquote> |
| 90 | * Methods should be verbs, in mixed case with the first letter lowercase, with the first letter of each |
| 91 | * internal word capitalized. |
| 92 | * </blockquote> |
| 93 | */ |
| 94 | METHOD_NAME_CONVENTION, |
| 95 | /** |
| 96 | * Mode to normalize according to the |
| 97 | * <cite>Code Conventions for the Java Programming Language - 9 - Naming Conventions - Variables</cite>. |
| 98 | * <blockquote> |
| 99 | * Except for variables, all instance, class, and class constants are in mixed case with a lowercase first |
| 100 | * letter. Internal words start with capital letters. Variable names should not start with underscore _ or |
| 101 | * dollar sign $ characters, even though both are allowed. Variable names should be short yet meaningful. The |
| 102 | * choice of a variable name should be mnemonic - that is - designed to indicate to the casual observer the |
| 103 | * intent of its use. One-character variable names should be avoided except for temporary "throwaway" variables. |
| 104 | * Common names for temporary variables are i, j, k, m, and n for integers; c, d, and e for characters. |
| 105 | * </blockquote> |
| 106 | */ |
| 107 | VARIABLE_NAME_CONVENTION |
| 108 | |
| 109 | } |
| 110 | |
| 111 | /** |
| 112 | * The value of the instance. |
| 113 | * @serial |
| 114 | */ |
| 115 | private String identifier; |
| 116 | |
| 117 | /** Cached instances. */ |
| 118 | private static volatile Reference<Map<CacheKey, JavaIdentifier>> cache; |
| 119 | |
| 120 | /** Serial version UID for backwards compatibility with 1.4.x object streams. */ |
| 121 | private static final long serialVersionUID = 7600377999055800720L; |
| 122 | |
| 123 | /** Underscore character. */ |
| 124 | private static final int UNDERSCORE_CODEPOINT = Character.codePointAt( "_", 0 ); |
| 125 | |
| 126 | /** Creates a new {@code JavaIdentifier} instance. */ |
| 127 | private JavaIdentifier() |
| 128 | { |
| 129 | super(); |
| 130 | } |
| 131 | |
| 132 | /** |
| 133 | * Returns the length of this character sequence. |
| 134 | * |
| 135 | * @return The number of {@code char}s in this sequence. |
| 136 | */ |
| 137 | public int length() |
| 138 | { |
| 139 | return this.identifier.length(); |
| 140 | } |
| 141 | |
| 142 | /** |
| 143 | * Returns the {@code char} value at a given index. |
| 144 | * |
| 145 | * @param index The index of the {@code char} value to return. |
| 146 | * |
| 147 | * @return The {@code char} value at {@code index}. |
| 148 | * |
| 149 | * @throws IndexOutOfBoundsException if {@code index} is negative or not less than the length of the sequence. |
| 150 | */ |
| 151 | public char charAt( final int index ) |
| 152 | { |
| 153 | return this.identifier.charAt( index ); |
| 154 | } |
| 155 | |
| 156 | /** |
| 157 | * Returns a new {@code CharSequence} that is a subsequence of this sequence. |
| 158 | * |
| 159 | * @param start The start index, inclusive. |
| 160 | * @param end The end index, exclusive. |
| 161 | * |
| 162 | * @return The sequence of characters starting at index {@code start} up to index {@code end - 1}. |
| 163 | * |
| 164 | * @throws IndexOutOfBoundsException if {@code start} or {@code end} are negative, if {@code end} is greater than |
| 165 | * the length of the sequence, or if {@code start} is greater than {@code end}. |
| 166 | */ |
| 167 | public CharSequence subSequence( final int start, final int end ) |
| 168 | { |
| 169 | return this.identifier.subSequence( start, end ); |
| 170 | } |
| 171 | |
| 172 | /** |
| 173 | * Returns a string containing the characters in this sequence in the same order as this sequence. The length of the |
| 174 | * string will be the length of this sequence. |
| 175 | * |
| 176 | * @return A string consisting of exactly this sequence of characters. |
| 177 | */ |
| 178 | @Override |
| 179 | public String toString() |
| 180 | { |
| 181 | return this.identifier; |
| 182 | } |
| 183 | |
| 184 | /** |
| 185 | * Returns the hash-code value of the object. |
| 186 | * |
| 187 | * @return The hash-code value of the object. |
| 188 | */ |
| 189 | @Override |
| 190 | public int hashCode() |
| 191 | { |
| 192 | return this.identifier.hashCode(); |
| 193 | } |
| 194 | |
| 195 | /** |
| 196 | * Tests whether some other object is equal to the object. |
| 197 | * |
| 198 | * @param o The object to test. |
| 199 | * |
| 200 | * @return {@code true}, if {@code o} is an instance of the class of the object and its string value is equal to the |
| 201 | * string value of the object. |
| 202 | */ |
| 203 | @Override |
| 204 | public boolean equals( final Object o ) |
| 205 | { |
| 206 | boolean equal = o == this; |
| 207 | |
| 208 | if ( !equal && o instanceof JavaIdentifier ) |
| 209 | { |
| 210 | equal = this.toString().equals( o.toString() ); |
| 211 | } |
| 212 | |
| 213 | return equal; |
| 214 | } |
| 215 | |
| 216 | /** |
| 217 | * Normalizes text from the beginning of the given string to produce a {@code JavaIdentifier}. |
| 218 | * |
| 219 | * @param text The text to normalize. |
| 220 | * @param mode The normalization to apply. |
| 221 | * |
| 222 | * @return A {@code JavaIdentifier} instance constructed by normalizing {@code text} according to {@code mode}. |
| 223 | * |
| 224 | * @throws NullPointerException if {@code text} or {@code mode} is {@code null}. |
| 225 | * @throws ParseException if normalization fails. |
| 226 | */ |
| 227 | public static JavaIdentifier normalize( final String text, final NormalizationMode mode ) throws ParseException |
| 228 | { |
| 229 | if ( text == null ) |
| 230 | { |
| 231 | throw new NullPointerException( "text" ); |
| 232 | } |
| 233 | if ( mode == null ) |
| 234 | { |
| 235 | throw new NullPointerException( "mode" ); |
| 236 | } |
| 237 | |
| 238 | return parse( text, mode, false ); |
| 239 | } |
| 240 | |
| 241 | /** |
| 242 | * Parses text from the beginning of a given string to produce a {@code JavaIdentifier} instance. |
| 243 | * |
| 244 | * @param text The text to parse. |
| 245 | * |
| 246 | * @return A {@code JavaIdentifier} instance constructed by parsing {@code text}. |
| 247 | * |
| 248 | * @throws NullPointerException if {@code text} is {@code null}. |
| 249 | * @throws ParseException if parsing fails. |
| 250 | * |
| 251 | * @see #valueOf(java.lang.String) |
| 252 | */ |
| 253 | public static JavaIdentifier parse( final String text ) throws ParseException |
| 254 | { |
| 255 | if ( text == null ) |
| 256 | { |
| 257 | throw new NullPointerException( "text" ); |
| 258 | } |
| 259 | |
| 260 | return parse( text, null, false ); |
| 261 | } |
| 262 | |
| 263 | /** |
| 264 | * Parses text from the beginning of a given string to produce a {@code JavaIdentifier} instance. |
| 265 | * <p>Unlike the {@link #parse(String)} method, this method throws an {@code IllegalArgumentException} if parsing |
| 266 | * fails.</p> |
| 267 | * |
| 268 | * @param text The text to parse. |
| 269 | * |
| 270 | * @return A {@code JavaIdentifier} instance constructed by parsing {@code text}. |
| 271 | * |
| 272 | * @throws NullPointerException if {@code text} is {@code null}. |
| 273 | * @throws IllegalArgumentException if parsing fails. |
| 274 | * |
| 275 | * @see #parse(java.lang.String) |
| 276 | */ |
| 277 | public static JavaIdentifier valueOf( final String text ) throws IllegalArgumentException |
| 278 | { |
| 279 | if ( text == null ) |
| 280 | { |
| 281 | throw new NullPointerException( "text" ); |
| 282 | } |
| 283 | |
| 284 | try |
| 285 | { |
| 286 | return parse( text, null, true ); |
| 287 | } |
| 288 | catch ( final ParseException e ) |
| 289 | { |
| 290 | throw new AssertionError( e ); |
| 291 | } |
| 292 | } |
| 293 | |
| 294 | private static JavaIdentifier parse( final String text, final NormalizationMode mode, |
| 295 | final boolean runtimeException ) |
| 296 | throws ParseException |
| 297 | { |
| 298 | Map<CacheKey, JavaIdentifier> map = cache == null ? null : cache.get(); |
| 299 | |
| 300 | if ( map == null ) |
| 301 | { |
| 302 | map = new HashMap<CacheKey, JavaIdentifier>( 128 ); |
| 303 | cache = new SoftReference<Map<CacheKey, JavaIdentifier>>( map ); |
| 304 | } |
| 305 | |
| 306 | synchronized ( map ) |
| 307 | { |
| 308 | final CacheKey key = new CacheKey( text, mode ); |
| 309 | JavaIdentifier javaIdentifier = map.get( key ); |
| 310 | |
| 311 | if ( javaIdentifier == null ) |
| 312 | { |
| 313 | javaIdentifier = new JavaIdentifier(); |
| 314 | parseIdentifier( javaIdentifier, text, mode, runtimeException ); |
| 315 | |
| 316 | if ( mode != null ) |
| 317 | { |
| 318 | final CacheKey normalizedKey = new CacheKey( javaIdentifier.toString(), mode ); |
| 319 | final JavaIdentifier normalizedInstance = map.get( normalizedKey ); |
| 320 | |
| 321 | if ( normalizedInstance != null ) |
| 322 | { |
| 323 | map.put( key, normalizedInstance ); |
| 324 | javaIdentifier = normalizedInstance; |
| 325 | } |
| 326 | else |
| 327 | { |
| 328 | map.put( key, javaIdentifier ); |
| 329 | map.put( normalizedKey, javaIdentifier ); |
| 330 | } |
| 331 | } |
| 332 | else |
| 333 | { |
| 334 | map.put( key, javaIdentifier ); |
| 335 | } |
| 336 | } |
| 337 | |
| 338 | return javaIdentifier; |
| 339 | } |
| 340 | } |
| 341 | |
| 342 | private static void parseIdentifier( final JavaIdentifier t, final String text, final NormalizationMode mode, |
| 343 | final boolean runtimeException ) |
| 344 | throws ParseException |
| 345 | { |
| 346 | if ( text.length() <= 0 ) |
| 347 | { |
| 348 | if ( runtimeException ) |
| 349 | { |
| 350 | throw new IllegalArgumentException( getMessage( "invalidEmptyString" ) ); |
| 351 | } |
| 352 | else |
| 353 | { |
| 354 | throw new ParseException( getMessage( "invalidEmptyString" ), 0 ); |
| 355 | } |
| 356 | } |
| 357 | |
| 358 | final StringBuilder identifierBuilder = new StringBuilder( text.length() ); |
| 359 | final List<Integer> retainedIndices = new ArrayList<Integer>( text.length() ); |
| 360 | boolean start_of_word = true; |
| 361 | int words = 0; |
| 362 | |
| 363 | for ( int i = 0, j = 1, s0 = text.length(), last_codepoint = -1; i < s0; i++, j++ ) |
| 364 | { |
| 365 | if ( !isWordSeparator( text.codePointAt( i ), mode, identifierBuilder.length() <= 0 ) ) |
| 366 | { |
| 367 | if ( mode != null ) |
| 368 | { |
| 369 | switch ( mode ) |
| 370 | { |
| 371 | case CAMEL_CASE: |
| 372 | if ( start_of_word ) |
| 373 | { |
| 374 | identifierBuilder.append( Character.toUpperCase( text.charAt( i ) ) ); |
| 375 | } |
| 376 | else if ( last_codepoint > -1 && j < s0 |
| 377 | && isCamelCase( last_codepoint, text.codePointAt( i ), text.codePointAt( j ) ) ) |
| 378 | { // Retain camel-case in words. |
| 379 | identifierBuilder.append( text.charAt( i ) ); |
| 380 | retainedIndices.add( identifierBuilder.length() - 1 ); |
| 381 | } |
| 382 | else |
| 383 | { |
| 384 | identifierBuilder.append( Character.toLowerCase( text.charAt( i ) ) ); |
| 385 | } |
| 386 | break; |
| 387 | |
| 388 | case LOWER_CASE: |
| 389 | if ( start_of_word && last_codepoint > -1 && last_codepoint != UNDERSCORE_CODEPOINT ) |
| 390 | { |
| 391 | identifierBuilder.append( Character.toChars( UNDERSCORE_CODEPOINT ) ); |
| 392 | } |
| 393 | |
| 394 | identifierBuilder.append( Character.toLowerCase( text.charAt( i ) ) ); |
| 395 | break; |
| 396 | |
| 397 | case UPPER_CASE: |
| 398 | case CONSTANT_NAME_CONVENTION: |
| 399 | if ( start_of_word && last_codepoint > -1 && last_codepoint != UNDERSCORE_CODEPOINT ) |
| 400 | { |
| 401 | identifierBuilder.append( Character.toChars( UNDERSCORE_CODEPOINT ) ); |
| 402 | } |
| 403 | |
| 404 | identifierBuilder.append( Character.toUpperCase( text.charAt( i ) ) ); |
| 405 | break; |
| 406 | |
| 407 | case VARIABLE_NAME_CONVENTION: |
| 408 | case METHOD_NAME_CONVENTION: |
| 409 | if ( start_of_word ) |
| 410 | { |
| 411 | identifierBuilder.append( words == 0 ? Character.toLowerCase( text.charAt( i ) ) |
| 412 | : Character.toUpperCase( text.charAt( i ) ) ); |
| 413 | |
| 414 | } |
| 415 | else if ( last_codepoint > -1 && j < s0 |
| 416 | && isCamelCase( last_codepoint, text.codePointAt( i ), text.codePointAt( j ) ) ) |
| 417 | { // Retain camel-case in words. |
| 418 | identifierBuilder.append( text.charAt( i ) ); |
| 419 | retainedIndices.add( identifierBuilder.length() - 1 ); |
| 420 | } |
| 421 | else |
| 422 | { |
| 423 | identifierBuilder.append( Character.toLowerCase( text.charAt( i ) ) ); |
| 424 | } |
| 425 | break; |
| 426 | |
| 427 | default: |
| 428 | throw new AssertionError( mode ); |
| 429 | |
| 430 | } |
| 431 | } |
| 432 | else |
| 433 | { |
| 434 | identifierBuilder.append( text.charAt( i ) ); |
| 435 | } |
| 436 | |
| 437 | last_codepoint = identifierBuilder.codePointAt( identifierBuilder.length() - 1 ); |
| 438 | start_of_word = false; |
| 439 | } |
| 440 | else |
| 441 | { |
| 442 | if ( mode != null ) |
| 443 | { |
| 444 | if ( !start_of_word ) |
| 445 | { |
| 446 | start_of_word = true; |
| 447 | words++; |
| 448 | } |
| 449 | } |
| 450 | else if ( runtimeException ) |
| 451 | { |
| 452 | throw new IllegalArgumentException( getMessage( "invalidCharacter", text, text.charAt( i ), i ) ); |
| 453 | } |
| 454 | else |
| 455 | { |
| 456 | throw new ParseException( getMessage( "invalidCharacter", text, text.charAt( i ), i ), i ); |
| 457 | } |
| 458 | } |
| 459 | } |
| 460 | |
| 461 | if ( words > 0 ) |
| 462 | { |
| 463 | // Multiple words - no camel-case retained in any word. |
| 464 | toLowerCase( identifierBuilder, retainedIndices ); |
| 465 | } |
| 466 | |
| 467 | t.identifier = identifierBuilder.toString(); |
| 468 | |
| 469 | if ( t.identifier.length() <= 0 ) |
| 470 | { |
| 471 | if ( runtimeException ) |
| 472 | { |
| 473 | throw new IllegalArgumentException( getMessage( "invalidCharacters", text ) ); |
| 474 | } |
| 475 | else |
| 476 | { |
| 477 | throw new ParseException( getMessage( "invalidCharacters", text ), 0 ); |
| 478 | } |
| 479 | } |
| 480 | |
| 481 | if ( JavaLanguage.KEYWORDS.contains( t.identifier ) |
| 482 | || JavaLanguage.BOOLEAN_LITERALS.contains( t.identifier ) |
| 483 | || JavaLanguage.NULL_LITERAL.equals( t.identifier ) ) |
| 484 | { |
| 485 | if ( mode != null ) |
| 486 | { |
| 487 | t.identifier = "_" + t.identifier; |
| 488 | } |
| 489 | else if ( runtimeException ) |
| 490 | { |
| 491 | throw new IllegalArgumentException( getMessage( "invalidWord", text, t.identifier, |
| 492 | text.indexOf( t.identifier ) ) ); |
| 493 | |
| 494 | } |
| 495 | else |
| 496 | { |
| 497 | throw new ParseException( getMessage( "invalidWord", text, t.identifier, text.indexOf( t.identifier ) ), |
| 498 | text.indexOf( t.identifier ) ); |
| 499 | |
| 500 | } |
| 501 | } |
| 502 | } |
| 503 | |
| 504 | private static boolean isWordSeparator( final int codePoint, final NormalizationMode mode, final boolean first ) |
| 505 | { |
| 506 | return !( ( first ? Character.isJavaIdentifierStart( codePoint ) : Character.isJavaIdentifierPart( codePoint ) ) |
| 507 | && ( mode != null ? Character.isLetterOrDigit( codePoint ) : true ) ); |
| 508 | |
| 509 | } |
| 510 | |
| 511 | private static boolean isCamelCase( final int left, final int middle, final int right ) |
| 512 | { |
| 513 | return Character.isLowerCase( left ) && Character.isUpperCase( middle ) && Character.isLowerCase( right ); |
| 514 | } |
| 515 | |
| 516 | private static void toLowerCase( final StringBuilder stringBuilder, final List<Integer> indices ) |
| 517 | { |
| 518 | for ( int i = 0, s0 = indices.size(); i < s0; i++ ) |
| 519 | { |
| 520 | final int index = indices.get( i ); |
| 521 | final int cp = Character.toLowerCase( stringBuilder.codePointAt( index ) ); |
| 522 | stringBuilder.replace( index, index + 1, String.valueOf( Character.toChars( cp ) ) ); |
| 523 | } |
| 524 | } |
| 525 | |
| 526 | private static String getMessage( final String key, final Object... args ) |
| 527 | { |
| 528 | return MessageFormat.format( ResourceBundle.getBundle( |
| 529 | JavaIdentifier.class.getName().replace( '.', '/' ), Locale.getDefault() ). |
| 530 | getString( key ), args ); |
| 531 | |
| 532 | } |
| 533 | |
| 534 | private static final class CacheKey |
| 535 | { |
| 536 | |
| 537 | private final String text; |
| 538 | |
| 539 | private final NormalizationMode mode; |
| 540 | |
| 541 | private CacheKey( final String text, final NormalizationMode mode ) |
| 542 | { |
| 543 | super(); |
| 544 | this.text = text; |
| 545 | this.mode = mode; |
| 546 | } |
| 547 | |
| 548 | @Override |
| 549 | public int hashCode() |
| 550 | { |
| 551 | int hc = 23; |
| 552 | hc = 37 * hc + this.text.hashCode(); |
| 553 | hc = 37 * hc + ( this.mode == null ? 0 : this.mode.hashCode() ); |
| 554 | return hc; |
| 555 | } |
| 556 | |
| 557 | @Override |
| 558 | public boolean equals( final Object o ) |
| 559 | { |
| 560 | boolean equal = o == this; |
| 561 | |
| 562 | if ( !equal && o instanceof CacheKey ) |
| 563 | { |
| 564 | final CacheKey that = (CacheKey) o; |
| 565 | equal = this.mode == that.mode && this.text.equals( that.text ); |
| 566 | } |
| 567 | |
| 568 | return equal; |
| 569 | } |
| 570 | |
| 571 | } |
| 572 | |
| 573 | } |