org.ka2ddo.util

Class StringCache

java.lang.Object

java.util.AbstractCollection<E>

java.util.AbstractSet<T>

org.ka2ddo.util.ShareableObjectCache<java.lang.String>

org.ka2ddo.util.StringCache

All Implemented Interfaces:

java.lang.Iterable<java.lang.String>, java.util.Collection<java.lang.String>, java.util.Set<java.lang.String>

public final class StringCache
extends ShareableObjectCache<java.lang.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 and Description
protected java.lang.Class<?>	getType() Get data type of the objects stored in this ShareableObjectCache.
static java.lang.String	intern(java.lang.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.Set

addAll, contains, containsAll, retainAll, spliterator, toArray, toArray

Methods inherited from interface java.util.Collection

parallelStream, removeIf, stream

Methods inherited from interface java.lang.Iterable

forEach

Method Detail

intern

public static java.lang.String intern(java.lang.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 java.lang.Class<?> getType()

Get data type of the objects stored in this ShareableObjectCache.

Specified by:

getType in class ShareableObjectCache<java.lang.String>

Returns:

Class of stored objects