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com.flexstor.ejb.cacheloader
Class CacheLoader  

java.lang.Object
  java.lang.Thread
      com.flexstor.ejb.cacheloader.CacheLoader

All Implemented Interfaces:

java.lang.Runnable

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public abstract class CacheLoader

extends java.lang.Thread

Super class for Cache Loaders. All cache loaders classes must extend this class and implement the methods defined here

Since:

FLEXSTORdb 3.0.5.3

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Nested Class Summary

 

Nested classes inherited from class java.lang.Thread

java.lang.Thread.UncaughtExceptionHandler

 

Field Summary
private  boolean	bDone           To notify caller that we are done
private static javax.naming.InitialContext	context           Stores the initial context to conect to the EJB Server
private static java.util.Hashtable	properties           Stores the GLOBAL properties defined in the flexdm.properties file

 

Fields inherited from class java.lang.Thread

MAX_PRIORITY, MIN_PRIORITY, NORM_PRIORITY

 

Constructor Summary
protected	CacheLoader()

 

Method Summary
private  void	buildInitialContext()
protected  void	finalize()           Called on an object by the Virtual Machine at most once, at some point after the Object is determined unreachable but before it is destroyed.
com.flexstor.ejb.EjbHome	getHome(java.lang.String sPubName)           Returns the home interface for the specified published name.
private  java.lang.String	getProperty(java.lang.String sKey, java.lang.String sDefaultValue)
boolean	isDone()
void	loadCache()           This method is called by EJBCacheLoaderApp to start loading cache.
protected abstract  void	loadToCache()
private  void	readEJBProperties()
void	run()           The method of Thread that will be run if there is no Runnable object associated with the Thread.

 

Methods inherited from class java.lang.Thread

activeCount, checkAccess, countStackFrames, currentThread, destroy, dumpStack, enumerate, getContextClassLoader, getDefaultUncaughtExceptionHandler, getId, getName, getPriority, getThreadGroup, getUncaughtExceptionHandler, holdsLock, interrupt, interrupted, isAlive, isDaemon, isInterrupted, join, join, join, resume, setContextClassLoader, setDaemon, setDefaultUncaughtExceptionHandler, setName, setPriority, setUncaughtExceptionHandler, sleep, sleep, start, stop, stop, suspend, toString, yield

 

Methods inherited from class java.lang.Object

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

 

Field Detail

context

private static javax.naming.InitialContext context

Stores the initial context to conect to the EJB Server

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properties

private static java.util.Hashtable properties

Stores the GLOBAL properties defined in the flexdm.properties file

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bDone

private boolean bDone

To notify caller that we are done

Constructor Detail

CacheLoader

protected CacheLoader()
               throws CacheLoaderException

Method Detail

loadCache

public void loadCache()
               throws CacheLoaderException

This method is called by EJBCacheLoaderApp to start loading cache. It first check whether cache is enables, if it is, it then calls loadToCache() in the subclass to actually load the cache refered by the sub class.

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run

public void run()

Description copied from class: java.lang.Thread

The method of Thread that will be run if there is no Runnable object associated with the Thread. Thread's implementation does nothing at all.

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loadToCache

protected abstract void loadToCache()
                             throws CacheLoaderException

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isDone

public boolean isDone()

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readEJBProperties

private void readEJBProperties()
                        throws CacheLoaderException

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buildInitialContext

private void buildInitialContext()
                          throws CacheLoaderException

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getHome

public com.flexstor.ejb.EjbHome getHome(java.lang.String sPubName)
                                 throws CacheLoaderException

Returns the home interface for the specified published name.

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getProperty

private java.lang.String getProperty(java.lang.String sKey,
                                     java.lang.String sDefaultValue)

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finalize

protected void finalize()

Description copied from class: java.lang.Object

Called on an object by the Virtual Machine at most once, at some point after the Object is determined unreachable but before it is destroyed. You would think that this means it eventually is called on every Object, but this is not necessarily the case. If execution terminates abnormally, garbage collection does not always happen. Thus you cannot rely on this method to always work. For finer control over garbage collection, use references from the java.lang.ref package.

Virtual Machines are free to not call this method if they can determine that it does nothing important; for example, if your class extends Object and overrides finalize to do simply super.finalize().

finalize() will be called by a java.lang.Thread that has no locks on any Objects, and may be called concurrently. There are no guarantees on the order in which multiple objects are finalized. This means that finalize() is usually unsuited for performing actions that must be thread-safe, and that your implementation must be use defensive programming if it is to always work.

If an Exception is thrown from finalize() during garbage collection, it will be patently ignored and the Object will still be destroyed.

It is allowed, although not typical, for user code to call finalize() directly. User invocation does not affect whether automatic invocation will occur. It is also permitted, although not recommended, for a finalize() method to "revive" an object by making it reachable from normal code again.

Unlike constructors, finalize() does not get called for an object's superclass unless the implementation specifically calls super.finalize().

The default implementation does nothing.

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Home >> All >> com >> flexstor >> ejb >> [ cacheloader overview ]	PREV CLASS  NEXT CLASS
SUMMARY:  JAVADOC |  SOURCE |  DOWNLOAD | NESTED | FIELD | CONSTR | METHOD	DETAIL: FIELD | CONSTR | METHOD

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