org.garret.perst
Class PersistentString

java.lang.Object
  org.garret.perst.Persistent
      org.garret.perst.PersistentResource
          org.garret.perst.PersistentString

All Implemented Interfaces:

java.io.Externalizable, IPersistent, IResource, java.io.Serializable

public class PersistentString

extends PersistentResource

Class encapsulating native Java string. java.lang.String is not persistent object so it can not be stored in Perst as independent persistent object. But sometimes it is needed. This class sole this problem providing implcit conversion operator from java.lang.String to PerisstentString. Also PersistentString class is mutable, allowing to change it's values.

See Also:

Serialized Form

Constructor Summary

PersistentString(java.lang.String str)
Consutrctor of perisstent string

Method Summary

void	append(java.lang.String tail) Append string to the current string value of PersistentString
java.lang.String	get() Get current string value
void	set(java.lang.String str) Assign new string value to the PersistentString
java.lang.String	toString() Get Java string

Methods inherited from class org.garret.perst.PersistentResource

exclusiveLock, exclusiveLock, reset, sharedLock, sharedLock, unlock

Methods inherited from class org.garret.perst.Persistent

assignOid, deallocate, equals, getOid, getStorage, hashCode, invalidate, isDeleted, isModified, isPersistent, isRaw, load, loadAndModify, makePersistent, modify, onLoad, onStore, readExternal, recursiveLoading, store, writeExternal

Methods inherited from class java.lang.Object

getClass, notify, notifyAll, wait, wait, wait

Constructor Detail

PersistentString

public PersistentString(java.lang.String str)

Consutrctor of perisstent string

Parameters:

str - Java string

Method Detail

append

public void append(java.lang.String tail)

Append string to the current string value of PersistentString

Parameters:

tail - appended string

get

public java.lang.String get()

Get current string value

Returns:

Java string

set

public void set(java.lang.String str)

Assign new string value to the PersistentString

Parameters:

str - new string value

toString

public java.lang.String toString()

Get Java string

Returns:

Java string