--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/jdk/src/share/classes/java/text/DecimalFormatSymbols.java Sat Dec 01 00:00:00 2007 +0000
@@ -0,0 +1,830 @@
+/*
+ * Copyright 1996-2006 Sun Microsystems, Inc. All Rights Reserved.
+ * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
+ *
+ * This code is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 only, as
+ * published by the Free Software Foundation. Sun designates this
+ * particular file as subject to the "Classpath" exception as provided
+ * by Sun in the LICENSE file that accompanied this code.
+ *
+ * This code is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * version 2 for more details (a copy is included in the LICENSE file that
+ * accompanied this code).
+ *
+ * You should have received a copy of the GNU General Public License version
+ * 2 along with this work; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Please contact Sun Microsystems, Inc., 4150 Network Circle, Santa Clara,
+ * CA 95054 USA or visit www.sun.com if you need additional information or
+ * have any questions.
+ */
+
+/*
+ * (C) Copyright Taligent, Inc. 1996, 1997 - All Rights Reserved
+ * (C) Copyright IBM Corp. 1996 - 1998 - 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.
+ *
+ */
+
+package java.text;
+
+import java.io.IOException;
+import java.io.ObjectInputStream;
+import java.io.Serializable;
+import java.text.spi.DecimalFormatSymbolsProvider;
+import java.util.Currency;
+import java.util.Hashtable;
+import java.util.Locale;
+import java.util.ResourceBundle;
+import java.util.spi.LocaleServiceProvider;
+import sun.util.LocaleServiceProviderPool;
+import sun.util.resources.LocaleData;
+
+/**
+ * This class represents the set of symbols (such as the decimal separator,
+ * the grouping separator, and so on) needed by <code>DecimalFormat</code>
+ * to format numbers. <code>DecimalFormat</code> creates for itself an instance of
+ * <code>DecimalFormatSymbols</code> from its locale data. If you need to change any
+ * of these symbols, you can get the <code>DecimalFormatSymbols</code> object from
+ * your <code>DecimalFormat</code> and modify it.
+ *
+ * @see java.util.Locale
+ * @see DecimalFormat
+ * @author Mark Davis
+ * @author Alan Liu
+ */
+
+public class DecimalFormatSymbols implements Cloneable, Serializable {
+
+ /**
+ * Create a DecimalFormatSymbols object for the default locale.
+ * This constructor can only construct instances for the locales
+ * supported by the Java runtime environment, not for those
+ * supported by installed
+ * {@link java.text.spi.DecimalFormatSymbolsProvider DecimalFormatSymbolsProvider}
+ * implementations. For full locale coverage, use the
+ * {@link #getInstance(Locale) getInstance} method.
+ */
+ public DecimalFormatSymbols() {
+ initialize( Locale.getDefault() );
+ }
+
+ /**
+ * Create a DecimalFormatSymbols object for the given locale.
+ * This constructor can only construct instances for the locales
+ * supported by the Java runtime environment, not for those
+ * supported by installed
+ * {@link java.text.spi.DecimalFormatSymbolsProvider DecimalFormatSymbolsProvider}
+ * implementations. For full locale coverage, use the
+ * {@link #getInstance(Locale) getInstance} method.
+ *
+ * @exception NullPointerException if <code>locale</code> is null
+ */
+ public DecimalFormatSymbols( Locale locale ) {
+ initialize( locale );
+ }
+
+ /**
+ * Returns an array of all locales for which the
+ * <code>getInstance</code> methods of this class can return
+ * localized instances.
+ * The returned array represents the union of locales supported by the Java
+ * runtime and by installed
+ * {@link java.text.spi.DecimalFormatSymbolsProvider DecimalFormatSymbolsProvider}
+ * implementations. It must contain at least a <code>Locale</code>
+ * instance equal to {@link java.util.Locale#US Locale.US}.
+ *
+ * @return An array of locales for which localized
+ * <code>DecimalFormatSymbols</code> instances are available.
+ * @since 1.6
+ */
+ public static Locale[] getAvailableLocales() {
+ LocaleServiceProviderPool pool =
+ LocaleServiceProviderPool.getPool(DecimalFormatSymbolsProvider.class);
+ return pool.getAvailableLocales();
+ }
+
+ /**
+ * Gets the <code>DecimalFormatSymbols</code> instance for the default
+ * locale. This method provides access to <code>DecimalFormatSymbols</code>
+ * instances for locales supported by the Java runtime itself as well
+ * as for those supported by installed
+ * {@link java.text.spi.DecimalFormatSymbolsProvider
+ * DecimalFormatSymbolsProvider} implementations.
+ * @return a <code>DecimalFormatSymbols</code> instance.
+ * @since 1.6
+ */
+ public static final DecimalFormatSymbols getInstance() {
+ return getInstance(Locale.getDefault());
+ }
+
+ /**
+ * Gets the <code>DecimalFormatSymbols</code> instance for the specified
+ * locale. This method provides access to <code>DecimalFormatSymbols</code>
+ * instances for locales supported by the Java runtime itself as well
+ * as for those supported by installed
+ * {@link java.text.spi.DecimalFormatSymbolsProvider
+ * DecimalFormatSymbolsProvider} implementations.
+ * @param locale the desired locale.
+ * @return a <code>DecimalFormatSymbols</code> instance.
+ * @exception NullPointerException if <code>locale</code> is null
+ * @since 1.6
+ */
+ public static final DecimalFormatSymbols getInstance(Locale locale) {
+
+ // Check whether a provider can provide an implementation that's closer
+ // to the requested locale than what the Java runtime itself can provide.
+ LocaleServiceProviderPool pool =
+ LocaleServiceProviderPool.getPool(DecimalFormatSymbolsProvider.class);
+ if (pool.hasProviders()) {
+ DecimalFormatSymbols providersInstance = pool.getLocalizedObject(
+ DecimalFormatSymbolsGetter.INSTANCE, locale);
+ if (providersInstance != null) {
+ return providersInstance;
+ }
+ }
+
+ return new DecimalFormatSymbols(locale);
+ }
+
+ /**
+ * Gets the character used for zero. Different for Arabic, etc.
+ */
+ public char getZeroDigit() {
+ return zeroDigit;
+ }
+
+ /**
+ * Sets the character used for zero. Different for Arabic, etc.
+ */
+ public void setZeroDigit(char zeroDigit) {
+ this.zeroDigit = zeroDigit;
+ }
+
+ /**
+ * Gets the character used for thousands separator. Different for French, etc.
+ */
+ public char getGroupingSeparator() {
+ return groupingSeparator;
+ }
+
+ /**
+ * Sets the character used for thousands separator. Different for French, etc.
+ */
+ public void setGroupingSeparator(char groupingSeparator) {
+ this.groupingSeparator = groupingSeparator;
+ }
+
+ /**
+ * Gets the character used for decimal sign. Different for French, etc.
+ */
+ public char getDecimalSeparator() {
+ return decimalSeparator;
+ }
+
+ /**
+ * Sets the character used for decimal sign. Different for French, etc.
+ */
+ public void setDecimalSeparator(char decimalSeparator) {
+ this.decimalSeparator = decimalSeparator;
+ }
+
+ /**
+ * Gets the character used for per mille sign. Different for Arabic, etc.
+ */
+ public char getPerMill() {
+ return perMill;
+ }
+
+ /**
+ * Sets the character used for per mille sign. Different for Arabic, etc.
+ */
+ public void setPerMill(char perMill) {
+ this.perMill = perMill;
+ }
+
+ /**
+ * Gets the character used for percent sign. Different for Arabic, etc.
+ */
+ public char getPercent() {
+ return percent;
+ }
+
+ /**
+ * Sets the character used for percent sign. Different for Arabic, etc.
+ */
+ public void setPercent(char percent) {
+ this.percent = percent;
+ }
+
+ /**
+ * Gets the character used for a digit in a pattern.
+ */
+ public char getDigit() {
+ return digit;
+ }
+
+ /**
+ * Sets the character used for a digit in a pattern.
+ */
+ public void setDigit(char digit) {
+ this.digit = digit;
+ }
+
+ /**
+ * Gets the character used to separate positive and negative subpatterns
+ * in a pattern.
+ */
+ public char getPatternSeparator() {
+ return patternSeparator;
+ }
+
+ /**
+ * Sets the character used to separate positive and negative subpatterns
+ * in a pattern.
+ */
+ public void setPatternSeparator(char patternSeparator) {
+ this.patternSeparator = patternSeparator;
+ }
+
+ /**
+ * Gets the string used to represent infinity. Almost always left
+ * unchanged.
+ */
+ public String getInfinity() {
+ return infinity;
+ }
+
+ /**
+ * Sets the string used to represent infinity. Almost always left
+ * unchanged.
+ */
+ public void setInfinity(String infinity) {
+ this.infinity = infinity;
+ }
+
+ /**
+ * Gets the string used to represent "not a number". Almost always left
+ * unchanged.
+ */
+ public String getNaN() {
+ return NaN;
+ }
+
+ /**
+ * Sets the string used to represent "not a number". Almost always left
+ * unchanged.
+ */
+ public void setNaN(String NaN) {
+ this.NaN = NaN;
+ }
+
+ /**
+ * Gets the character used to represent minus sign. If no explicit
+ * negative format is specified, one is formed by prefixing
+ * minusSign to the positive format.
+ */
+ public char getMinusSign() {
+ return minusSign;
+ }
+
+ /**
+ * Sets the character used to represent minus sign. If no explicit
+ * negative format is specified, one is formed by prefixing
+ * minusSign to the positive format.
+ */
+ public void setMinusSign(char minusSign) {
+ this.minusSign = minusSign;
+ }
+
+ /**
+ * Returns the currency symbol for the currency of these
+ * DecimalFormatSymbols in their locale.
+ * @since 1.2
+ */
+ public String getCurrencySymbol()
+ {
+ return currencySymbol;
+ }
+
+ /**
+ * Sets the currency symbol for the currency of these
+ * DecimalFormatSymbols in their locale.
+ * @since 1.2
+ */
+ public void setCurrencySymbol(String currency)
+ {
+ currencySymbol = currency;
+ }
+
+ /**
+ * Returns the ISO 4217 currency code of the currency of these
+ * DecimalFormatSymbols.
+ * @since 1.2
+ */
+ public String getInternationalCurrencySymbol()
+ {
+ return intlCurrencySymbol;
+ }
+
+ /**
+ * Sets the ISO 4217 currency code of the currency of these
+ * DecimalFormatSymbols.
+ * If the currency code is valid (as defined by
+ * {@link java.util.Currency#getInstance(java.lang.String) Currency.getInstance}),
+ * this also sets the currency attribute to the corresponding Currency
+ * instance and the currency symbol attribute to the currency's symbol
+ * in the DecimalFormatSymbols' locale. If the currency code is not valid,
+ * then the currency attribute is set to null and the currency symbol
+ * attribute is not modified.
+ *
+ * @see #setCurrency
+ * @see #setCurrencySymbol
+ * @since 1.2
+ */
+ public void setInternationalCurrencySymbol(String currencyCode)
+ {
+ intlCurrencySymbol = currencyCode;
+ currency = null;
+ if (currencyCode != null) {
+ try {
+ currency = Currency.getInstance(currencyCode);
+ currencySymbol = currency.getSymbol();
+ } catch (IllegalArgumentException e) {
+ }
+ }
+ }
+
+ /**
+ * Gets the currency of these DecimalFormatSymbols. May be null if the
+ * currency symbol attribute was previously set to a value that's not
+ * a valid ISO 4217 currency code.
+ *
+ * @return the currency used, or null
+ * @since 1.4
+ */
+ public Currency getCurrency() {
+ return currency;
+ }
+
+ /**
+ * Sets the currency of these DecimalFormatSymbols.
+ * This also sets the currency symbol attribute to the currency's symbol
+ * in the DecimalFormatSymbols' locale, and the international currency
+ * symbol attribute to the currency's ISO 4217 currency code.
+ *
+ * @param currency the new currency to be used
+ * @exception NullPointerException if <code>currency</code> is null
+ * @since 1.4
+ * @see #setCurrencySymbol
+ * @see #setInternationalCurrencySymbol
+ */
+ public void setCurrency(Currency currency) {
+ if (currency == null) {
+ throw new NullPointerException();
+ }
+ this.currency = currency;
+ intlCurrencySymbol = currency.getCurrencyCode();
+ currencySymbol = currency.getSymbol(locale);
+ }
+
+
+ /**
+ * Returns the monetary decimal separator.
+ * @since 1.2
+ */
+ public char getMonetaryDecimalSeparator()
+ {
+ return monetarySeparator;
+ }
+
+ /**
+ * Sets the monetary decimal separator.
+ * @since 1.2
+ */
+ public void setMonetaryDecimalSeparator(char sep)
+ {
+ monetarySeparator = sep;
+ }
+
+ //------------------------------------------------------------
+ // BEGIN Package Private methods ... to be made public later
+ //------------------------------------------------------------
+
+ /**
+ * Returns the character used to separate the mantissa from the exponent.
+ */
+ char getExponentialSymbol()
+ {
+ return exponential;
+ }
+ /**
+ * Returns the string used to separate the mantissa from the exponent.
+ * Examples: "x10^" for 1.23x10^4, "E" for 1.23E4.
+ *
+ * @return the exponent separator string
+ * @see #setExponentSeparator(java.lang.String)
+ * @since 1.6
+ */
+ public String getExponentSeparator()
+ {
+ return exponentialSeparator;
+ }
+
+ /**
+ * Sets the character used to separate the mantissa from the exponent.
+ */
+ void setExponentialSymbol(char exp)
+ {
+ exponential = exp;
+ }
+
+ /**
+ * Sets the string used to separate the mantissa from the exponent.
+ * Examples: "x10^" for 1.23x10^4, "E" for 1.23E4.
+ *
+ * @param exp the exponent separator string
+ * @exception NullPointerException if <code>exp</code> is null
+ * @see #getExponentSeparator()
+ * @since 1.6
+ */
+ public void setExponentSeparator(String exp)
+ {
+ if (exp == null) {
+ throw new NullPointerException();
+ }
+ exponentialSeparator = exp;
+ }
+
+
+ //------------------------------------------------------------
+ // END Package Private methods ... to be made public later
+ //------------------------------------------------------------
+
+ /**
+ * Standard override.
+ */
+ public Object clone() {
+ try {
+ return (DecimalFormatSymbols)super.clone();
+ // other fields are bit-copied
+ } catch (CloneNotSupportedException e) {
+ throw new InternalError();
+ }
+ }
+
+ /**
+ * Override equals.
+ */
+ public boolean equals(Object obj) {
+ if (obj == null) return false;
+ if (this == obj) return true;
+ if (getClass() != obj.getClass()) return false;
+ DecimalFormatSymbols other = (DecimalFormatSymbols) obj;
+ return (zeroDigit == other.zeroDigit &&
+ groupingSeparator == other.groupingSeparator &&
+ decimalSeparator == other.decimalSeparator &&
+ percent == other.percent &&
+ perMill == other.perMill &&
+ digit == other.digit &&
+ minusSign == other.minusSign &&
+ patternSeparator == other.patternSeparator &&
+ infinity.equals(other.infinity) &&
+ NaN.equals(other.NaN) &&
+ currencySymbol.equals(other.currencySymbol) &&
+ intlCurrencySymbol.equals(other.intlCurrencySymbol) &&
+ currency == other.currency &&
+ monetarySeparator == other.monetarySeparator &&
+ exponentialSeparator.equals(other.exponentialSeparator) &&
+ locale.equals(other.locale));
+ }
+
+ /**
+ * Override hashCode.
+ */
+ public int hashCode() {
+ int result = zeroDigit;
+ result = result * 37 + groupingSeparator;
+ result = result * 37 + decimalSeparator;
+ return result;
+ }
+
+ /**
+ * Initializes the symbols from the FormatData resource bundle.
+ */
+ private void initialize( Locale locale ) {
+ this.locale = locale;
+
+ // get resource bundle data - try the cache first
+ boolean needCacheUpdate = false;
+ Object[] data = (Object[]) cachedLocaleData.get(locale);
+ if (data == null) { /* cache miss */
+ data = new Object[3];
+ ResourceBundle rb = LocaleData.getNumberFormatData(locale);
+ data[0] = rb.getStringArray("NumberElements");
+ needCacheUpdate = true;
+ }
+
+ String[] numberElements = (String[]) data[0];
+
+ decimalSeparator = numberElements[0].charAt(0);
+ groupingSeparator = numberElements[1].charAt(0);
+ patternSeparator = numberElements[2].charAt(0);
+ percent = numberElements[3].charAt(0);
+ zeroDigit = numberElements[4].charAt(0); //different for Arabic,etc.
+ digit = numberElements[5].charAt(0);
+ minusSign = numberElements[6].charAt(0);
+ exponential = numberElements[7].charAt(0);
+ exponentialSeparator = numberElements[7]; //string representation new since 1.6
+ perMill = numberElements[8].charAt(0);
+ infinity = numberElements[9];
+ NaN = numberElements[10];
+
+ // Try to obtain the currency used in the locale's country.
+ // Check for empty country string separately because it's a valid
+ // country ID for Locale (and used for the C locale), but not a valid
+ // ISO 3166 country code, and exceptions are expensive.
+ if (!"".equals(locale.getCountry())) {
+ try {
+ currency = Currency.getInstance(locale);
+ } catch (IllegalArgumentException e) {
+ // use default values below for compatibility
+ }
+ }
+ if (currency != null) {
+ intlCurrencySymbol = currency.getCurrencyCode();
+ if (data[1] != null && data[1] == intlCurrencySymbol) {
+ currencySymbol = (String) data[2];
+ } else {
+ currencySymbol = currency.getSymbol(locale);
+ data[1] = intlCurrencySymbol;
+ data[2] = currencySymbol;
+ needCacheUpdate = true;
+ }
+ } else {
+ // default values
+ intlCurrencySymbol = "XXX";
+ try {
+ currency = Currency.getInstance(intlCurrencySymbol);
+ } catch (IllegalArgumentException e) {
+ }
+ currencySymbol = "\u00A4";
+ }
+ // Currently the monetary decimal separator is the same as the
+ // standard decimal separator for all locales that we support.
+ // If that changes, add a new entry to NumberElements.
+ monetarySeparator = decimalSeparator;
+
+ if (needCacheUpdate) {
+ cachedLocaleData.put(locale, data);
+ }
+ }
+
+ /**
+ * Reads the default serializable fields, provides default values for objects
+ * in older serial versions, and initializes non-serializable fields.
+ * If <code>serialVersionOnStream</code>
+ * is less than 1, initializes <code>monetarySeparator</code> to be
+ * the same as <code>decimalSeparator</code> and <code>exponential</code>
+ * to be 'E'.
+ * If <code>serialVersionOnStream</code> is less than 2,
+ * initializes <code>locale</code>to the root locale, and initializes
+ * If <code>serialVersionOnStream</code> is less than 3, it initializes
+ * <code>exponentialSeparator</code> using <code>exponential</code>.
+ * Sets <code>serialVersionOnStream</code> back to the maximum allowed value so that
+ * default serialization will work properly if this object is streamed out again.
+ * Initializes the currency from the intlCurrencySymbol field.
+ *
+ * @since JDK 1.1.6
+ */
+ private void readObject(ObjectInputStream stream)
+ throws IOException, ClassNotFoundException {
+ stream.defaultReadObject();
+ if (serialVersionOnStream < 1) {
+ // Didn't have monetarySeparator or exponential field;
+ // use defaults.
+ monetarySeparator = decimalSeparator;
+ exponential = 'E';
+ }
+ if (serialVersionOnStream < 2) {
+ // didn't have locale; use root locale
+ locale = Locale.ROOT;
+ }
+ if (serialVersionOnStream < 3) {
+ // didn't have exponentialSeparator. Create one using exponential
+ exponentialSeparator = Character.toString(exponential);
+ }
+ serialVersionOnStream = currentSerialVersion;
+
+ if (intlCurrencySymbol != null) {
+ try {
+ currency = Currency.getInstance(intlCurrencySymbol);
+ } catch (IllegalArgumentException e) {
+ }
+ }
+ }
+
+ /**
+ * Character used for zero.
+ *
+ * @serial
+ * @see #getZeroDigit
+ */
+ private char zeroDigit;
+
+ /**
+ * Character used for thousands separator.
+ *
+ * @serial
+ * @see #getGroupingSeparator
+ */
+ private char groupingSeparator;
+
+ /**
+ * Character used for decimal sign.
+ *
+ * @serial
+ * @see #getDecimalSeparator
+ */
+ private char decimalSeparator;
+
+ /**
+ * Character used for per mille sign.
+ *
+ * @serial
+ * @see #getPerMill
+ */
+ private char perMill;
+
+ /**
+ * Character used for percent sign.
+ * @serial
+ * @see #getPercent
+ */
+ private char percent;
+
+ /**
+ * Character used for a digit in a pattern.
+ *
+ * @serial
+ * @see #getDigit
+ */
+ private char digit;
+
+ /**
+ * Character used to separate positive and negative subpatterns
+ * in a pattern.
+ *
+ * @serial
+ * @see #getPatternSeparator
+ */
+ private char patternSeparator;
+
+ /**
+ * String used to represent infinity.
+ * @serial
+ * @see #getInfinity
+ */
+ private String infinity;
+
+ /**
+ * String used to represent "not a number".
+ * @serial
+ * @see #getNaN
+ */
+ private String NaN;
+
+ /**
+ * Character used to represent minus sign.
+ * @serial
+ * @see #getMinusSign
+ */
+ private char minusSign;
+
+ /**
+ * String denoting the local currency, e.g. "$".
+ * @serial
+ * @see #getCurrencySymbol
+ */
+ private String currencySymbol;
+
+ /**
+ * ISO 4217 currency code denoting the local currency, e.g. "USD".
+ * @serial
+ * @see #getInternationalCurrencySymbol
+ */
+ private String intlCurrencySymbol;
+
+ /**
+ * The decimal separator used when formatting currency values.
+ * @serial
+ * @since JDK 1.1.6
+ * @see #getMonetaryDecimalSeparator
+ */
+ private char monetarySeparator; // Field new in JDK 1.1.6
+
+ /**
+ * The character used to distinguish the exponent in a number formatted
+ * in exponential notation, e.g. 'E' for a number such as "1.23E45".
+ * <p>
+ * Note that the public API provides no way to set this field,
+ * even though it is supported by the implementation and the stream format.
+ * The intent is that this will be added to the API in the future.
+ *
+ * @serial
+ * @since JDK 1.1.6
+ */
+ private char exponential; // Field new in JDK 1.1.6
+
+ /**
+ * The string used to separate the mantissa from the exponent.
+ * Examples: "x10^" for 1.23x10^4, "E" for 1.23E4.
+ * <p>
+ * If both <code>exponential</code> and <code>exponentialSeparator</code>
+ * exist, this <code>exponentialSeparator</code> has the precedence.
+ *
+ * @serial
+ * @since 1.6
+ */
+ private String exponentialSeparator; // Field new in JDK 1.6
+
+ /**
+ * The locale of these currency format symbols.
+ *
+ * @serial
+ * @since 1.4
+ */
+ private Locale locale;
+
+ // currency; only the ISO code is serialized.
+ private transient Currency currency;
+
+ // Proclaim JDK 1.1 FCS compatibility
+ static final long serialVersionUID = 5772796243397350300L;
+
+ // The internal serial version which says which version was written
+ // - 0 (default) for version up to JDK 1.1.5
+ // - 1 for version from JDK 1.1.6, which includes two new fields:
+ // monetarySeparator and exponential.
+ // - 2 for version from J2SE 1.4, which includes locale field.
+ // - 3 for version from J2SE 1.6, which includes exponentialSeparator field.
+ private static final int currentSerialVersion = 3;
+
+ /**
+ * Describes the version of <code>DecimalFormatSymbols</code> present on the stream.
+ * Possible values are:
+ * <ul>
+ * <li><b>0</b> (or uninitialized): versions prior to JDK 1.1.6.
+ *
+ * <li><b>1</b>: Versions written by JDK 1.1.6 or later, which include
+ * two new fields: <code>monetarySeparator</code> and <code>exponential</code>.
+ * <li><b>2</b>: Versions written by J2SE 1.4 or later, which include a
+ * new <code>locale</code> field.
+ * <li><b>3</b>: Versions written by J2SE 1.6 or later, which include a
+ * new <code>exponentialSeparator</code> field.
+ * </ul>
+ * When streaming out a <code>DecimalFormatSymbols</code>, the most recent format
+ * (corresponding to the highest allowable <code>serialVersionOnStream</code>)
+ * is always written.
+ *
+ * @serial
+ * @since JDK 1.1.6
+ */
+ private int serialVersionOnStream = currentSerialVersion;
+
+ /**
+ * cache to hold the NumberElements and the Currency
+ * of a Locale.
+ */
+ private static final Hashtable cachedLocaleData = new Hashtable(3);
+
+ /**
+ * Obtains a DecimalFormatSymbols instance from a DecimalFormatSymbolsProvider
+ * implementation.
+ */
+ private static class DecimalFormatSymbolsGetter
+ implements LocaleServiceProviderPool.LocalizedObjectGetter<DecimalFormatSymbolsProvider,
+ DecimalFormatSymbols> {
+ private static final DecimalFormatSymbolsGetter INSTANCE =
+ new DecimalFormatSymbolsGetter();
+
+ public DecimalFormatSymbols getObject(
+ DecimalFormatSymbolsProvider decimalFormatSymbolsProvider,
+ Locale locale,
+ String key,
+ Object... params) {
+ assert params.length == 0;
+ return decimalFormatSymbolsProvider.getInstance(locale);
+ }
+ }
+}