StringCache

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractSet<T>

org.ka2ddo.util.ShareableObjectCache<String>

org.ka2ddo.util.StringCache

All Implemented Interfaces:: Iterable<String>, Collection<String>, Set<String>

public final class StringCache extends ShareableObjectCache<String>

This singleton class provides a pruneable cache for constant Strings that won't eat up the PermGen part of the Java JVM heap.

Author:: Andrew Pavlin, KA2DDO

Method Summary

Modifier and Type

Method

Description

protected Class<?>

getType()

Get data type of the objects stored in this ShareableObjectCache.

static String

intern(String s)

Return the interned singleton copy of the specified String.

Methods inherited from class org.ka2ddo.util.ShareableObjectCache
add, clear, internKey, isEmpty, iterator, remove, size, toString

Methods inherited from class java.util.AbstractSet
equals, hashCode, removeAll

Methods inherited from class java.util.AbstractCollection
addAll, contains, containsAll, retainAll, toArray, toArray

Methods inherited from class java.lang.Object
clone, finalize, getClass, notify, notifyAll, wait, wait, wait

Methods inherited from interface java.util.Collection
parallelStream, removeIf, stream, toArray

Methods inherited from interface java.lang.Iterable
forEach

Methods inherited from interface java.util.Set
addAll, contains, containsAll, retainAll, spliterator, toArray, toArray

Method Details
- intern
  
  public static String intern(String s)
  
  Return the interned singleton copy of the specified String. If the String does not currently exist in the StringCache, it becomes the singleton.
  
  Parameters:
  
  s - String to look for interned copy
  
  Returns:
  
  interned String copy
- getType
  
  protected Class<?> getType()
  
  Get data type of the objects stored in this ShareableObjectCache.
  
  Specified by:
  
  getType in class ShareableObjectCache<String>
  
  Returns:
  
  Class of stored objects