Examples of BTreeHeader

org.apache.directory.mavibot.btree.BTreeHeader

Store in memory the information associated with a B-tree.
A B-tree Header on disk contains the following elements :

 +--------------------+-------------+ | revision           | 8 bytes     | +--------------------+-------------+ | nbElems            | 8 bytes     | +--------------------+-------------+ | rootPageOffset     | 8 bytes     | +--------------------+-------------+ | BtreeOffset        | 8 bytes     | +--------------------+-------------+

Each B-tree Header will be written starting on a new page. In memory, a B-tree Header store a bit more of information :

Examples of org.apache.directory.mavibot.btree.BTreeHeader

    /**
     * Creates a new BTree, with no initialization. 
     */
    public BTree()
    {
        btreeHeader = new BTreeHeader();
    }

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Examples of org.apache.directory.mavibot.btree.BTreeHeader

        if ( name == null )
        {
            throw new IllegalArgumentException( "BTree name cannot be null" );
        }


        btreeHeader = new BTreeHeader();
        btreeHeader.setName( name );
        btreeHeader.setPageSize( configuration.getPageSize() );


        keySerializer = configuration.getKeySerializer();
        btreeHeader.setKeySerializerFQCN( keySerializer.getClass().getName() );

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Examples of org.apache.directory.mavibot.btree.BTreeHeader

    public BTree( String name, String dataDir, ElementSerializer<K> keySerializer,
        ElementSerializer<V> valueSerializer,
        int pageSize, boolean allowDuplicates, int cacheSize )
        throws IOException
    {
        btreeHeader = new BTreeHeader();
        btreeHeader.setName( name );


        setPageSize( pageSize );
        writeBufferSize = DEFAULT_WRITE_BUFFER_SIZE;

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Examples of org.apache.directory.mavibot.btree.BTreeHeader

    /**
     * Creates a new BTree, with no initialization. 
     */
    public BTree()
    {
        btreeHeader = new BTreeHeader();
        type = BTreeTypeEnum.IN_MEMORY;
    }

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Examples of org.apache.directory.mavibot.btree.BTreeHeader

        if ( filePath != null )
        {
            envDir = new File( filePath );
        }


        btreeHeader = new BTreeHeader();
        btreeHeader.setName( name );
        btreeHeader.setPageSize( configuration.getPageSize() );


        keySerializer = configuration.getKeySerializer();
        btreeHeader.setKeySerializerFQCN( keySerializer.getClass().getName() );

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Examples of org.apache.directory.mavibot.btree.BTreeHeader

    public BTree( String name, String dataDir, ElementSerializer<K> keySerializer,
        ElementSerializer<V> valueSerializer,
        int pageSize, boolean allowDuplicates, int cacheSize )
        throws IOException
    {
        btreeHeader = new BTreeHeader();
        btreeHeader.setName( name );


        if ( dataDir != null )
        {
            envDir = new File( dataDir );

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Examples of org.apache.directory.mavibot.btree.BTreeHeader

    /**
     * Creates a new BTree, with no initialization. 
     */
    public BTree()
    {
        btreeHeader = new BTreeHeader();
        type = BTreeTypeEnum.IN_MEMORY;
    }

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Examples of org.apache.directory.mavibot.btree.BTreeHeader

        if ( filePath != null )
        {
            envDir = new File( filePath );
        }


        btreeHeader = new BTreeHeader();
        btreeHeader.setName( name );
        btreeHeader.setPageSize( configuration.getPageSize() );


        keySerializer = configuration.getKeySerializer();
        btreeHeader.setKeySerializerFQCN( keySerializer.getClass().getName() );

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Examples of org.apache.directory.mavibot.btree.BTreeHeader

    public BTree( String name, String dataDir, ElementSerializer<K> keySerializer,
        ElementSerializer<V> valueSerializer,
        int pageSize, boolean allowDuplicates, int cacheSize )
        throws IOException
    {
        btreeHeader = new BTreeHeader();
        btreeHeader.setName( name );


        if ( dataDir != null )
        {
            envDir = new File( dataDir );

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Examples of org.apache.directory.mavibot.btree.BTreeHeader

    /**
     * Creates a new BTree, with no initialization. 
     */
    public BTree()
    {
        btreeHeader = new BTreeHeader();
    }

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