Package org.gcube.resourcemanagement.support.server.utils.persistence

Class PersistentItem<T extends Serializable>

java.lang.Object

org.gcube.resourcemanagement.support.server.utils.persistence.PersistentItem<T>

All Implemented Interfaces:

PersistenceHandler<T>

public abstract class PersistentItem<T extends Serializable>
extends Object
implements PersistenceHandler<T>

Wrapping for data that can be persisted on the filesystem.

 new PersistentItem<DataTypeToPersist>(fileToStore, refreshDelay) {
  public void onLoad() {
         //...
  }
  
  // The other methods to overload
  // ...
  
 }
 

Author:

Daniele Strollo (ISTI-CNR)

Field Summary

Fields

Modifier and Type	Field	Description
protected static String	LOG_PREFIX

Constructor Summary

Constructors

Constructor	Description
PersistentItem()	Deprecated. for internal use only.
PersistentItem(String persistenceFileName)
PersistentItem(String persistenceFileName, long refreshDelay)
PersistentItem(T data, String persistenceFileName, long refreshDelay)

Method Summary

Modifier and Type	Method	Description
void	destroy()	Requires the destroy of the persistent resource.
T	getData()	Returns the corresponding persistent data.
void	setData(T data)	Sets the new data to persist.
protected void	setPersistenceFileName(String persistenceFileName)
protected void	setRefreshDelay(long refreshDelay)

Methods inherited from class java.lang.Object

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

Methods inherited from interface org.gcube.resourcemanagement.support.server.utils.persistence.PersistenceHandler

onDestroy, onLoad, onRefresh

Field Detail

LOG_PREFIX

protected static final String LOG_PREFIX

See Also:

Constant Field Values

Constructor Detail

PersistentItem

public PersistentItem()

Deprecated.

for internal use only.

PersistentItem

public PersistentItem(String persistenceFileName)

PersistentItem

public PersistentItem(String persistenceFileName,
                      long refreshDelay)

PersistentItem

public PersistentItem(T data,
                      String persistenceFileName,
                      long refreshDelay)

Method Detail

setPersistenceFileName

protected final void setPersistenceFileName(String persistenceFileName)

setRefreshDelay

protected final void setRefreshDelay(long refreshDelay)

destroy

public final void destroy()

Description copied from interface: PersistenceHandler

Requires the destroy of the persistent resource. The persistent file will be deleted and the onDestroy event will be raised.

Specified by:

destroy in interface PersistenceHandler<T extends Serializable>

getData

public final T getData()

Returns the corresponding persistent data.

Specified by:

getData in interface PersistenceHandler<T extends Serializable>

Returns:

setData

public final void setData(T data)

Description copied from interface: PersistenceHandler

Sets the new data to persist.

Specified by:

setData in interface PersistenceHandler<T extends Serializable>