Examples of org.apache.directory.shared.util.SynchronizedLRUMap

Package org.apache.directory.shared.util

Examples of org.apache.directory.shared.util.SynchronizedLRUMap

org.apache.directory.shared.util.SynchronizedLRUMap

An implementation of a Map which has a maximum size and uses a Least Recently Used algorithm to remove items from the Map when the maximum size is reached and new items are added.

A synchronized version can be obtained with: Collections.synchronizedMap( theMapToSynchronize ) If it will be accessed by multiple threads, you _must_ synchronize access to this Map. Even concurrent get(Object) operations produce indeterminate behaviour.

Unlike the Collections 1.0 version, this version of LRUMap does use a true LRU algorithm. The keys for all gets and puts are moved to the front of the list. LRUMap is now a subclass of SequencedHashMap, and the "LRU" key is now equivalent to LRUMap.getFirst().
@since Commons Collections 1.0 @author Apache Directory Project

     */
    public void init( SchemaManager schemaManager, AttributeType attributeType ) throws IOException
    {
        LOG.debug( "Initializing an Index for attribute '{}'", attributeType.getName() );
        
        keyCache = new SynchronizedLRUMap( cacheSize );
        this.attributeType = attributeType;


        if ( attributeId == null )
        {
            setAttributeId( attributeType.getName() );

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        {
            throw new IllegalArgumentException( I18n.err( I18n.ERR_592 ) );
        }


        // TODO make the size of the duplicate btree cache configurable via constructor
        duplicateBtrees = new SynchronizedLRUMap( 100 );


        if ( valueSerializer != null )
        {
            marshaller = new ArrayMarshaller<V>( valueComparator,
                    new MarshallerSerializerBridge<V>( valueSerializer ) );

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        {
            throw new IllegalArgumentException( I18n.err( I18n.ERR_592 ) );
        }


        // TODO make the size of the duplicate btree cache configurable via constructor
        duplicateBtrees = new SynchronizedLRUMap( 100 );


        if ( valueSerializer != null )
        {
            marshaller = new ArrayMarshaller<V>( valueComparator,
                new MarshallerSerializerBridge<V>( valueSerializer ) );

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     */
    public void init( SchemaManager schemaManager, AttributeType attributeType ) throws IOException
    {
        LOG.debug( "Initializing an Index for attribute '{}'", attributeType.getName() );
        
        keyCache = new SynchronizedLRUMap( cacheSize );
        this.attributeType = attributeType;


        if ( attributeId == null )
        {
            setAttributeId( attributeType.getName() );

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    {
        LOG.debug( "Initializing an Index for attribute '{}'", attributeType.getName() );
        
        //System.out.println( "IDX Initializing RDNindex for AT " + attributeType.getOid() + ", wkDirPath : " + wkDirPath + ", base dir : " + this.wkDirPath );


        keyCache = new SynchronizedLRUMap( cacheSize );
        this.attributeType = attributeType;


        if ( attributeId == null )
        {
            setAttributeId( attributeType.getName() );

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        throws IOException
    {
        this.schemaManager = schemaManager;


        // TODO make the size of the duplicate btree cache configurable via constructor
        duplicateBtrees = new SynchronizedLRUMap( 100 );


        if ( valueSerializer != null )
        {
            marshaller = new ArrayMarshaller<V>( valueComparator,
                    new MarshallerSerializerBridge<V>( valueSerializer ) );

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Related Classes of org.apache.directory.shared.util.SynchronizedLRUMap

org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmIndex

org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmRdnIndex

org.apache.directory.server.core.partition.impl.btree.jdbm.JdbmTable

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