Examples of org.apache.stratum.jcs.engine.CacheElement

org.apache.stratum.jcs.engine.CacheElement
Generic element wrapper. Often stuffed inside another. @author asmuts @created January 15, 2002


        // update the attribute name set.
        // Note: necessary to use super.get to avoid read lock within the current write lock.
        GroupId groupId = new GroupId( this.getCacheName(), key.groupId );
        HashSet attrNameSet = null;
        CacheElement ce = null;


        try
        {
            ce = ( CacheElement ) systemGroupIdCache.get( groupId.key, true, invocation );
        }
        catch ( IOException ioe )
        {
        }


        // IF THE NAME SET IS FOUND
        // TODO: move -- INITIAL INSERTION IS CURRENTLY DONE BY THE PUT
        if ( ce != null )
        {
            attrNameSet = ( HashSet ) ce.val;


            // HANDLE NON REMOVAL SCENARIOS
            if ( attrNameSet != null || !remove )
            {
                // THE GROUP HAS BEEN CREATED BUT NOTHING IS IN IT
                if ( attrNameSet == null )
                {
                    attrNameSet = new HashSet();
                }


                if ( remove )
                {
                    attrNameSet.remove( key.attrName );
                }
                else
                {
                    attrNameSet.add( key.attrName );
                }


                if ( attrNameSet.size() > 0 )
                {
                    // update the changed name set.
                    try
                    {


                        CacheElement ceID = new CacheElement( this.getCacheName(), groupId.key, attrNameSet );
                        ceID.setElementAttributes( ce.attr );
                        if ( log.isDebugEnabled() )
                        {
                            log.debug( "updateGroupAttrNameSet((groupAttrname)key,invocation,remove) > calling systemGroupIdCache.update( ceID, EXCLUDE_REMOTE_CACHE )" );
                        }
                        // ALWAYS EXCLUDE THE REMOTE CACHE

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     * @return The elementAttributes value
     */
    public IElementAttributes getElementAttributes( Serializable key )
        throws CacheException, IOException
    {
        CacheElement ce = ( CacheElement ) getCacheElement( key );
        if ( ce == null )
        {
            throw new ObjectNotFoundException( "key " + key + " is not found" );
        }
        return ce.getElementAttributes();
    }

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    /** Description of the Method */
    public void put( Serializable key, Serializable value, IElementAttributes attr )
        throws IOException
    {
        CacheElement ce = null;
        ce = new CacheElement( cacheName, key, value );
        ce.setElementAttributes( attr );
        update( ce );
    }

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    public void put( Serializable key, Serializable value, IElementAttributes attr )
        throws IOException
    {
        try
        {
            CacheElement ce = new CacheElement( cache.getCacheName(), key, value );
            ce.setElementAttributes( attr );
            update( ce );
        }
        catch ( IOException ex )
        {
            log.error( ex );

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    /** Description of the Method */
    public void put( Serializable key, Serializable value, IElementAttributes attr )
        throws IOException
    {
        CacheElement ce = null;
        ce = new CacheElement( cacheName, key, value );
        ce.setElementAttributes( attr );
        update( ce );
    }

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    /** */
    public void remove( String cacheName, Serializable key, byte requesterId )
        throws IOException
    {
        CacheElement ce = new CacheElement( cacheName, key, null );
        LateralElementDescriptor led = new LateralElementDescriptor( ce );
        led.requesterId = requesterId;
        led.command = led.REMOVE;
        sender.send( led );
    }

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     */
    public Serializable get( String cacheName, Serializable key, boolean container )
        throws IOException
    {
        //p( "get(cacheName,key,container)" );
        CacheElement ce = new CacheElement( cacheName, key, null );
        LateralElementDescriptor led = new LateralElementDescriptor( ce );
        //led.requesterId = requesterId; // later
        led.command = led.GET;
        return sender.sendAndReceive( led );
        //return null;

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    /** */
    public void removeAll( String cacheName, byte requesterId )
        throws IOException
    {
        CacheElement ce = new CacheElement( cacheName, "ALL", null );
        LateralElementDescriptor led = new LateralElementDescriptor( ce );
        led.requesterId = requesterId;
        led.command = led.REMOVEALL;
        sender.send( led );
    }

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            while ( notDone )
            {
                System.out.println( "enter mesage:" );
                message = br.readLine();
                CacheElement ce = new CacheElement( "test", "test", message );
                LateralElementDescriptor led = new LateralElementDescriptor( ce );
                sender.send( led );
            }
        }
        catch ( Exception e )

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