org.helidb.util.bplus
Class LruCacheNodeRepositoryBuilder<K,V>

java.lang.Object
  org.helidb.util.bplus.LruCacheNodeRepositoryBuilder<K,V>

Type Parameters:

K -

V -

All Implemented Interfaces:

NodeRepositoryBuilder<K>

public class LruCacheNodeRepositoryBuilder<K,V>
extends Object
implements NodeRepositoryBuilder<K>

This is a NodeRepositoryBuilder for building LruCacheNodeRepository objects. It uses a proxied NodeRepositoryBuilder to build the caching node repository's proxied repository.

Since:

1.0

Author:

Karl Gustafsson

See Also:

LruCacheNodeRepository

In_jar:

helidb-core

Field Summary

static int

DEFAULT_MAX_CACHE_SIZE The default maximum size of the cache is 16 nodes.

Constructor Summary

LruCacheNodeRepositoryBuilder()

Method Summary

NodeRepository<K>	create(ReadWritableFile f, boolean readOnly) Create the node repository.
LruCacheNodeRepositoryBuilder<K,V>	setMaxCacheSize(int i) Set the maximum cache size measured in the number of cached nodes.
LruCacheNodeRepositoryBuilder<K,V>	setProxiedBuilder(NodeRepositoryBuilder<K> proxied) Set the builder for building the proxied node repository.

Methods inherited from class java.lang.Object

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

Field Detail

DEFAULT_MAX_CACHE_SIZE

public static final int DEFAULT_MAX_CACHE_SIZE

The default maximum size of the cache is 16 nodes.

See Also:

Constant Field Values

Constructor Detail

LruCacheNodeRepositoryBuilder

public LruCacheNodeRepositoryBuilder()

Method Detail

setProxiedBuilder

public LruCacheNodeRepositoryBuilder<K,V> setProxiedBuilder(NodeRepositoryBuilder<K> proxied)

Set the builder for building the proxied node repository.

Parameters:

proxied - The proxied builder.

Returns:

this.

setMaxCacheSize

public LruCacheNodeRepositoryBuilder<K,V> setMaxCacheSize(int i)
                                                   throws IllegalArgumentException

Set the maximum cache size measured in the number of cached nodes.

Parameters:

i - The maximum number of cached nodes.

Returns:

this.

Throws:

IllegalArgumentException - If the cache size is less than 1.

create

public NodeRepository<K> create(ReadWritableFile f,
                                boolean readOnly)

Description copied from interface: NodeRepositoryBuilder

Create the node repository.

Specified by:

create in interface NodeRepositoryBuilder<K>

Parameters:

f - The file containing the node repository data.

readOnly - Should the repository be read only?

Returns:

The created node repository.