下面列出了怎么用java.text.spi.DecimalFormatSymbolsProvider的API类实例代码及写法，或者点击链接到github查看源代码。
/**
* 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);
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
if (decimalFormatSymbolsProvider == null) {
DecimalFormatSymbolsProvider provider = AccessController.doPrivileged(
(PrivilegedAction<DecimalFormatSymbolsProvider>) () ->
new DecimalFormatSymbolsProviderImpl(
getAdapterType(),
getLanguageTagSet("FormatData")));
synchronized (this) {
if (decimalFormatSymbolsProvider == null) {
decimalFormatSymbolsProvider = provider;
}
}
}
return decimalFormatSymbolsProvider;
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
if (decimalFormatSymbolsProvider == null) {
DecimalFormatSymbolsProvider provider = AccessController.doPrivileged(
(PrivilegedAction<DecimalFormatSymbolsProvider>) () ->
new DecimalFormatSymbolsProviderImpl(
getAdapterType(),
getLanguageTagSet("FormatData")));
synchronized (this) {
if (decimalFormatSymbolsProvider == null) {
decimalFormatSymbolsProvider = provider;
}
}
}
return decimalFormatSymbolsProvider;
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
if (decimalFormatSymbolsProvider == null) {
DecimalFormatSymbolsProvider provider = new DecimalFormatSymbolsProviderImpl(getAdapterType(), getLanguageTagSet("FormatData"));
synchronized (this) {
if (decimalFormatSymbolsProvider == null) {
decimalFormatSymbolsProvider = provider;
}
}
}
return decimalFormatSymbolsProvider;
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
if (decimalFormatSymbolsProvider == null) {
DecimalFormatSymbolsProvider provider = new DecimalFormatSymbolsProviderImpl(getAdapterType(), getLanguageTagSet("FormatData"));
synchronized (this) {
if (decimalFormatSymbolsProvider == null) {
decimalFormatSymbolsProvider = provider;
}
}
}
return decimalFormatSymbolsProvider;
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
if (decimalFormatSymbolsProvider == null) {
DecimalFormatSymbolsProvider provider = new DecimalFormatSymbolsProviderImpl(getAdapterType(), getLanguageTagSet("FormatData"));
synchronized (this) {
if (decimalFormatSymbolsProvider == null) {
decimalFormatSymbolsProvider = provider;
}
}
}
return decimalFormatSymbolsProvider;
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
if (decimalFormatSymbolsProvider == null) {
DecimalFormatSymbolsProvider provider = new DecimalFormatSymbolsProviderImpl(getAdapterType(), getLanguageTagSet("FormatData"));
synchronized (this) {
if (decimalFormatSymbolsProvider == null) {
decimalFormatSymbolsProvider = provider;
}
}
}
return decimalFormatSymbolsProvider;
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
if (decimalFormatSymbolsProvider == null) {
DecimalFormatSymbolsProvider provider = new DecimalFormatSymbolsProviderImpl(getAdapterType(), getLanguageTagSet("FormatData"));
synchronized (this) {
if (decimalFormatSymbolsProvider == null) {
decimalFormatSymbolsProvider = provider;
}
}
}
return decimalFormatSymbolsProvider;
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
if (decimalFormatSymbolsProvider == null) {
DecimalFormatSymbolsProvider provider = new DecimalFormatSymbolsProviderImpl(getAdapterType(), getLanguageTagSet("FormatData"));
synchronized (this) {
if (decimalFormatSymbolsProvider == null) {
decimalFormatSymbolsProvider = provider;
}
}
}
return decimalFormatSymbolsProvider;
}
/**
* Initializes the symbols from the FormatData resource bundle.
*/
private void initialize( Locale locale ) {
this.locale = locale;
// get resource bundle data
LocaleProviderAdapter adapter = LocaleProviderAdapter.getAdapter(DecimalFormatSymbolsProvider.class, locale);
// Avoid potential recursions
if (!(adapter instanceof ResourceBundleBasedAdapter)) {
adapter = LocaleProviderAdapter.getResourceBundleBased();
}
Object[] data = adapter.getLocaleResources(locale).getDecimalFormatSymbolsData();
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];
// maybe filled with previously cached values, or null.
intlCurrencySymbol = (String) data[1];
currencySymbol = (String) data[2];
// 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;
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
if (decimalFormatSymbolsProvider == null) {
DecimalFormatSymbolsProvider provider = new DecimalFormatSymbolsProviderImpl(getAdapterType(), getLanguageTagSet("FormatData"));
synchronized (this) {
if (decimalFormatSymbolsProvider == null) {
decimalFormatSymbolsProvider = provider;
}
}
}
return decimalFormatSymbolsProvider;
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
if (decimalFormatSymbolsProvider == null) {
DecimalFormatSymbolsProvider provider = new DecimalFormatSymbolsProviderImpl(getAdapterType(), getLanguageTagSet("FormatData"));
synchronized (this) {
if (decimalFormatSymbolsProvider == null) {
decimalFormatSymbolsProvider = provider;
}
}
}
return decimalFormatSymbolsProvider;
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
if (decimalFormatSymbolsProvider == null) {
DecimalFormatSymbolsProvider provider = new DecimalFormatSymbolsProviderImpl(getAdapterType(), getLanguageTagSet("FormatData"));
synchronized (this) {
if (decimalFormatSymbolsProvider == null) {
decimalFormatSymbolsProvider = provider;
}
}
}
return decimalFormatSymbolsProvider;
}
@Override
public DecimalFormatSymbolsProvider getImpl(Locale locale) {
return SPILocaleProviderAdapter.getImpl(map, locale);
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
return getLocaleServiceProvider(DecimalFormatSymbolsProvider.class);
}
@Override
public void addImpl(DecimalFormatSymbolsProvider impl) {
for (Locale l : impl.getAvailableLocales()) {
map.putIfAbsent(l, impl);
}
}
@Override
public DecimalFormatSymbolsProvider getImpl(Locale locale) {
return SPILocaleProviderAdapter.getImpl(map, locale);
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
return getLocaleServiceProvider(DecimalFormatSymbolsProvider.class);
}
@Override
public DecimalFormatSymbolsProvider getImpl(Locale locale) {
return SPILocaleProviderAdapter.getImpl(map, locale);
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
return getLocaleServiceProvider(DecimalFormatSymbolsProvider.class);
}
@Override
public void addImpl(DecimalFormatSymbolsProvider impl) {
for (Locale l : impl.getAvailableLocales()) {
map.putIfAbsent(l, impl);
}
}
@Override
public DecimalFormatSymbolsProvider getImpl(Locale locale) {
return SPILocaleProviderAdapter.getImpl(map, locale);
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
return getLocaleServiceProvider(DecimalFormatSymbolsProvider.class);
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
return getLocaleServiceProvider(DecimalFormatSymbolsProvider.class);
}
@Override
public void addImpl(DecimalFormatSymbolsProvider impl) {
for (Locale l : impl.getAvailableLocales()) {
map.putIfAbsent(l, impl);
}
}
@Override
public DecimalFormatSymbolsProvider getImpl(Locale locale) {
return SPILocaleProviderAdapter.getImpl(map, locale);
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
return getLocaleServiceProvider(DecimalFormatSymbolsProvider.class);
}
/**
* Initializes the symbols from the FormatData resource bundle.
*/
private void initialize( Locale locale ) {
this.locale = locale;
// check for region override
Locale override = locale.getUnicodeLocaleType("nu") == null ?
CalendarDataUtility.findRegionOverride(locale) :
locale;
// get resource bundle data
LocaleProviderAdapter adapter = LocaleProviderAdapter.getAdapter(DecimalFormatSymbolsProvider.class, override);
// Avoid potential recursions
if (!(adapter instanceof ResourceBundleBasedAdapter)) {
adapter = LocaleProviderAdapter.getResourceBundleBased();
}
Object[] data = adapter.getLocaleResources(override).getDecimalFormatSymbolsData();
String[] numberElements = (String[]) data[0];
decimalSeparator = numberElements[0].charAt(0);
groupingSeparator = numberElements[1].charAt(0);
patternSeparator = numberElements[2].charAt(0);
percentText = numberElements[3];
percent = findNonFormatChar(percentText, '%');
zeroDigit = numberElements[4].charAt(0); //different for Arabic,etc.
digit = numberElements[5].charAt(0);
minusSignText = numberElements[6];
minusSign = findNonFormatChar(minusSignText, '-');
exponential = numberElements[7].charAt(0);
exponentialSeparator = numberElements[7]; //string representation new since 1.6
perMillText = numberElements[8];
perMill = findNonFormatChar(perMillText, '\u2030');
infinity = numberElements[9];
NaN = numberElements[10];
// maybe filled with previously cached values, or null.
intlCurrencySymbol = (String) data[1];
currencySymbol = (String) data[2];
// 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;
}
@Override
public DecimalFormatSymbolsProvider getDecimalFormatSymbolsProvider() {
return getLocaleServiceProvider(DecimalFormatSymbolsProvider.class);
}
@Override
public Map<Locale, DecimalFormatSymbolsProvider> getDelegateMap() {
return map;
}