Package opennlp.tools.util.jvm

Class JvmStringInterner

java.lang.Object

opennlp.tools.util.jvm.JvmStringInterner

All Implemented Interfaces:

StringInterner

@Internal
@ThreadSafe
public class JvmStringInterner
extends Object
implements StringInterner

A StringInterner implementation based on String.intern(). Strings interned via this implementation are put into PermGen space. If needed, the PermGen memory can be increased by the JVM argument -XX:MaxPermSize.

Using this StringInterner brings back the default behaviour of OpenNLP before version 2.3.2. You can use it by setting the system property opennlp.interner.class to the fully qualified classname of a StringInterner implementation.

Constructor Summary

Constructors

Constructor	Description
JvmStringInterner()

Method Summary

Modifier and Type	Method	Description
String	intern(String sample)	Interns and returns a reference to the representative instance for any collection of string instances that are equal to each other.

Methods inherited from class java.lang.Object

equals, getClass, hashCode, notify, notifyAll, toString, wait, wait, wait

Constructor Details

JvmStringInterner

public JvmStringInterner()

Method Details

intern

public String intern(String sample)

Interns and returns a reference to the representative instance for any collection of string instances that are equal to each other.

Specified by:

intern in interface StringInterner

Parameters:

sample - string instance to be interned

Returns:

reference to the interned string instance