gate.util.persistence
Class PersistenceManager.URLHolder

java.lang.Object
  gate.util.persistence.PersistenceManager.URLHolder

All Implemented Interfaces:

Persistence, Serializable

Enclosing class:

PersistenceManager

public static class PersistenceManager.URLHolder
extends Object
implements Persistence

URLs get upset when serialised and deserialised so we need to convert them to strings for storage. In the case of "file:" URLs the relative path to the persistence file will actually be stored, except when the URL refers to a resource within the current GATE home directory in which case the relative path to the GATE home directory will be stored. In that case a warning is issued to

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Serialized Form

Field Summary

private static String	gatehomePathMarker
private static String	gatepluginsPathMarker
private static String	relativePathMarker This string will be used to start the serialisation of URL that represent relative paths.
(package private) static long	serialVersionUID
private static String	syspropMarker
(package private) String	urlString

Constructor Summary

PersistenceManager.URLHolder()

Method Summary

Object	createObject() Creates a new object from the data contained.
void	extractDataFromSource(Object source) Populates this Persistence with the data that needs to be stored from the original source object.

Methods inherited from class java.lang.Object

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

Field Detail

urlString

String urlString

relativePathMarker

private static final String relativePathMarker

This string will be used to start the serialisation of URL that represent relative paths.

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Constant Field Values

gatehomePathMarker

private static final String gatehomePathMarker

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Constant Field Values

gatepluginsPathMarker

private static final String gatepluginsPathMarker

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Constant Field Values

syspropMarker

private static final String syspropMarker

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Constant Field Values

serialVersionUID

static final long serialVersionUID

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Constant Field Values

Constructor Detail

PersistenceManager.URLHolder

public PersistenceManager.URLHolder()

Method Detail

extractDataFromSource

public void extractDataFromSource(Object source)
                           throws PersistenceException

Populates this Persistence with the data that needs to be stored from the original source object.

Specified by:

extractDataFromSource in interface Persistence

Throws:

PersistenceException

createObject

public Object createObject()
                    throws PersistenceException

Creates a new object from the data contained. This new object is supposed to be a copy for the original object used as source for data extraction.

Specified by:

createObject in interface Persistence

Throws:

PersistenceException