libcore.util.BasicLruCache.get java code examples

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private void myMethod () {
 DateTime d =new DateTime()
DateTimeFormatter formatter;String text;formatter.parseDateTime(text)
Object instant;new DateTime(instant)
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}

/**
 * Returns a shared, mutable array containing the constants of this enum. It
 * is an error to modify the returned array.
 *
 * @hide
 */
@SuppressWarnings("unchecked") // the cache always returns the type matching enumType
public static <T extends Enum<T>> T[] getSharedConstants(Class<T> enumType) {
  return (T[]) sharedConstantsCache.get(enumType);
}

/**
 * Returns the cached InetAddress[] associated with 'hostname'. Returns null if nothing is known
 * about 'hostname'. Returns a String suitable for use as an UnknownHostException detail
 * message if 'hostname' is known not to exist.
 */
public Object get(String hostname) {
  AddressCacheEntry entry = cache.get(hostname);
  // Do we have a valid cache entry?
  if (entry != null && entry.expiryNanos >= System.nanoTime()) {
    return entry.value;
  }
  // Either we didn't find anything, or it had expired.
  // No need to remove expired entries: the caller will provide a replacement shortly.
  return null;
}

public static String getBestDateTimePattern(String skeleton, String localeName) {
 String key = skeleton + "\t" + localeName;
 synchronized (CACHED_PATTERNS) {
  String pattern = CACHED_PATTERNS.get(key);
  if (pattern == null) {
   pattern = getBestDateTimePatternNative(skeleton, localeName);
   CACHED_PATTERNS.put(key, pattern);
  }
  return pattern;
 }
}

/**
 * Returns a shared, mutable array containing the constants of this enum. It
 * is an error to modify the returned array.
 *
 * @hide
 */
@SuppressWarnings("unchecked") // the cache always returns the type matching enumType
public static <T extends Enum<T>> T[] getSharedConstants(Class<T> enumType) {
  return (T[]) sharedConstantsCache.get(enumType);
}

/**
 * Returns a shared, mutable array containing the constants of this enum. It
 * is an error to modify the returned array.
 *
 * @hide
 */
@SuppressWarnings("unchecked") // the cache always returns the type matching enumType
public static <T extends Enum<T>> T[] getSharedConstants(Class<T> enumType) {
  return (T[]) sharedConstantsCache.get(enumType);
}

/**
 * Returns a shared, mutable array containing the constants of this enum. It
 * is an error to modify the returned array.
 *
 * @hide
 */
@SuppressWarnings("unchecked") // the cache always returns the type matching enumType
public static <T extends Enum<T>> T[] getSharedConstants(Class<T> enumType) {
  return (T[]) sharedConstantsCache.get(enumType);
}

/**
 * Returns a shared, mutable array containing the constants of this enum. It
 * is an error to modify the returned array.
 *
 * @hide
 */
@SuppressWarnings("unchecked") // the cache always returns the type matching enumType
public static <T extends Enum<T>> T[] getSharedConstants(Class<T> enumType) {
  return (T[]) sharedConstantsCache.get(enumType);
}

/**
 * Returns a shared, mutable array containing the constants of this enum. It
 * is an error to modify the returned array.
 *
 * @hide
 */
@SuppressWarnings("unchecked") // the cache always returns the type matching enumType
public static <T extends Enum<T>> T[] getSharedConstants(Class<T> enumType) {
  return (T[]) sharedConstantsCache.get(enumType);
}

/**
 * Returns a shared, mutable array containing the constants of this enum. It
 * is an error to modify the returned array.
 *
 * @hide
 */
@SuppressWarnings("unchecked") // the cache always returns the type matching enumType
public static <T extends Enum<T>> T[] getSharedConstants(Class<T> enumType) {
  return (T[]) sharedConstantsCache.get(enumType);
}

/**
 * Returns the cached InetAddress[] associated with 'hostname'. Returns null if nothing is known
 * about 'hostname'. Returns a String suitable for use as an UnknownHostException detail
 * message if 'hostname' is known not to exist.
 */
public Object get(String hostname) {
  AddressCacheEntry entry = cache.get(hostname);
  // Do we have a valid cache entry?
  if (entry != null && entry.expiryNanos >= System.nanoTime()) {
    return entry.value;
  }
  // Either we didn't find anything, or it had expired.
  // No need to remove expired entries: the caller will provide a replacement shortly.
  return null;
}

/**
 * Returns the cached InetAddress[] associated with 'hostname'. Returns null if nothing is known
 * about 'hostname'. Returns a String suitable for use as an UnknownHostException detail
 * message if 'hostname' is known not to exist.
 */
public Object get(String hostname) {
  AddressCacheEntry entry = cache.get(hostname);
  // Do we have a valid cache entry?
  if (entry != null && entry.expiryNanos >= System.nanoTime()) {
    return entry.value;
  }
  // Either we didn't find anything, or it had expired.
  // No need to remove expired entries: the caller will provide a replacement shortly.
  return null;
}

/**
 * Returns the cached InetAddress[] associated with 'hostname'. Returns null if nothing is known
 * about 'hostname'. Returns a String suitable for use as an UnknownHostException detail
 * message if 'hostname' is known not to exist.
 */
public Object get(String hostname) {
  AddressCacheEntry entry = cache.get(hostname);
  // Do we have a valid cache entry?
  if (entry != null && entry.expiryNanos >= System.nanoTime()) {
    return entry.value;
  }
  // Either we didn't find anything, or it had expired.
  // No need to remove expired entries: the caller will provide a replacement shortly.
  return null;
}

/**
 * Returns the cached InetAddress[] associated with 'hostname'. Returns null if nothing is known
 * about 'hostname'. Returns a String suitable for use as an UnknownHostException detail
 * message if 'hostname' is known not to exist.
 */
public Object get(String hostname) {
  AddressCacheEntry entry = cache.get(hostname);
  // Do we have a valid cache entry?
  if (entry != null && entry.expiryNanos >= System.nanoTime()) {
    return entry.value;
  }
  // Either we didn't find anything, or it had expired.
  // No need to remove expired entries: the caller will provide a replacement shortly.
  return null;
}

/**
 * Returns the cached InetAddress[] associated with 'hostname'. Returns null if nothing is known
 * about 'hostname'. Returns a String suitable for use as an UnknownHostException detail
 * message if 'hostname' is known not to exist.
 */
public Object get(String hostname) {
  AddressCacheEntry entry = cache.get(hostname);
  // Do we have a valid cache entry?
  if (entry != null && entry.expiryNanos >= System.nanoTime()) {
    return entry.value;
  }
  // Either we didn't find anything, or it had expired.
  // No need to remove expired entries: the caller will provide a replacement shortly.
  return null;
}

public static String getBestDateTimePattern(String skeleton, String localeName) {
 String key = skeleton + "\t" + localeName;
 synchronized (CACHED_PATTERNS) {
  String pattern = CACHED_PATTERNS.get(key);
  if (pattern == null) {
   pattern = getBestDateTimePatternNative(skeleton, localeName);
   CACHED_PATTERNS.put(key, pattern);
  }
  return pattern;
 }
}

public static String getBestDateTimePattern(String skeleton, String localeName) {
 String key = skeleton + "\t" + localeName;
 synchronized (CACHED_PATTERNS) {
  String pattern = CACHED_PATTERNS.get(key);
  if (pattern == null) {
   pattern = getBestDateTimePatternNative(skeleton, localeName);
   CACHED_PATTERNS.put(key, pattern);
  }
  return pattern;
 }
}

public static String getBestDateTimePattern(String skeleton, String localeName) {
 String key = skeleton + "\t" + localeName;
 synchronized (CACHED_PATTERNS) {
  String pattern = CACHED_PATTERNS.get(key);
  if (pattern == null) {
   pattern = getBestDateTimePatternNative(skeleton, localeName);
   CACHED_PATTERNS.put(key, pattern);
  }
  return pattern;
 }
}

public static String getBestDateTimePattern(String skeleton, String localeName) {
 String key = skeleton + "\t" + localeName;
 synchronized (CACHED_PATTERNS) {
  String pattern = CACHED_PATTERNS.get(key);
  if (pattern == null) {
   pattern = getBestDateTimePatternNative(skeleton, localeName);
   CACHED_PATTERNS.put(key, pattern);
  }
  return pattern;
 }
}

public static String getBestDateTimePattern(String skeleton, String localeName) {
 String key = skeleton + "\t" + localeName;
 synchronized (CACHED_PATTERNS) {
  String pattern = CACHED_PATTERNS.get(key);
  if (pattern == null) {
   pattern = getBestDateTimePatternNative(skeleton, localeName);
   CACHED_PATTERNS.put(key, pattern);
  }
  return pattern;
 }
}

public static String getBestDateTimePattern(String skeleton, String localeName) {
 String key = skeleton + "\t" + localeName;
 synchronized (CACHED_PATTERNS) {
  String pattern = CACHED_PATTERNS.get(key);
  if (pattern == null) {
   pattern = getBestDateTimePatternNative(skeleton, localeName);
   CACHED_PATTERNS.put(key, pattern);
  }
  return pattern;
 }
}

Javadoc

Returns the value for key if it exists in the cache or can be created by #create. If a value was returned, it is moved to the head of the queue. This returns null if a value is not cached and cannot be created.

Popular methods of BasicLruCache

create
Called after a cache miss to compute a value for the corresponding key. Returns the computed value o
entryEvicted
Called for entries that have reached the tail of the least recently used queue and are be removed. T
evictAll
Clear the cache, calling #entryEvicted on each removed entry.
put
Caches value for key. The value is moved to the head of the queue.
trimToSize

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How to use getmethodin libcore.util.BasicLruCache

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get
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libcore.util.BasicLruCache