Package org.apache.jena.dboe.trans.bplustree

Class BPlusTreeFactory

java.lang.Object

org.apache.jena.dboe.trans.bplustree.BPlusTreeFactory

public class BPlusTreeFactory
extends java.lang.Object

Make BPlusTrees - this code works in close association with the BPlusTree constructor

Method Summary

Modifier and Type	Method	Description
static BPlusTree	addLogging(BPlusTree bpTree)	Debugging
static BPlusTree	addTracking(BPlusTree bpTree)	Debugging
static BPlusTree	create(ComponentId id, BPlusTreeParams params, org.apache.jena.dboe.base.file.BufferChannel chan, org.apache.jena.dboe.base.block.BlockMgr blkMgrNodes, org.apache.jena.dboe.base.block.BlockMgr blkMgrLeaves)	Create the java structures to correspond to the supplied block managers for the persistent storage.
static BPlusTree	createBPTree(ComponentId cid, org.apache.jena.dboe.base.file.FileSet fileset, int order, int blockSize, int readCacheSize, int writeCacheSize, org.apache.jena.dboe.base.record.RecordFactory factory)	Knowing all the parameters, create a B+Tree
static BPlusTree	createBPTree(ComponentId cid, org.apache.jena.dboe.base.file.FileSet fileset, org.apache.jena.dboe.base.record.RecordFactory factory)	Create a B+Tree using defaults
static BPlusTree	createBPTreeByBlockSize(ComponentId cid, org.apache.jena.dboe.base.file.FileSet fileset, int blockSize, int readCacheSize, int writeCacheSize, org.apache.jena.dboe.base.record.RecordFactory factory)	Create a B+Tree by BlockSize
static BPlusTree	createBPTreeByOrder(ComponentId cid, org.apache.jena.dboe.base.file.FileSet fileset, int order, int readCacheSize, int writeCacheSize, org.apache.jena.dboe.base.record.RecordFactory factory)	Create a B+Tree by Order
static BPlusTree	createBPTreeByOrder(ComponentId cid, org.apache.jena.dboe.base.file.FileSet fileset, int order, org.apache.jena.dboe.base.record.RecordFactory factory)	Create a B+Tree by Order
static BPlusTree	createNonTxn(BPlusTreeParams params, org.apache.jena.dboe.base.file.BufferChannel chan, org.apache.jena.dboe.base.block.BlockMgr blkMgrNodes, org.apache.jena.dboe.base.block.BlockMgr blkMgrLeaves)	Create the java structures to correspond to the supplied block managers for the persistent storage.
static RangeIndex	makeBPlusTree(ComponentId cid, org.apache.jena.dboe.base.file.FileSet fs, int blkSize, int readCacheSize, int writeCacheSize, int dftKeyLength, int dftValueLength)
static BPlusTree	makeMem(int order, int keyLength, int valueLength)	(Testing mainly) Make an in-memory B+Tree, with copy-in, copy-out block managers
static BPlusTree	makeMem(int order, int minDataRecords, int keyLength, int valueLength)	(Testing mainly) Make an in-memory B+Tree, with copy-in, copy-out block managers
static BPlusTree	makeMem(java.lang.String name, int order, int keyLength, int valueLength)	(Testing mainly) Make an in-memory B+Tree, with copy-in, copy-out block managers
static BPlusTree	makeMem(java.lang.String name, int order, int minDataRecords, int keyLength, int valueLength)	(Testing mainly) Make an in-memory B+Tree, with copy-in, copy-out block managers
static org.apache.jena.dboe.base.record.RecordFactory	makeRecordFactory(int keyLen, int valueLen)
static BPlusTree	rebuild(BPlusTree bpt, org.apache.jena.dboe.base.file.BufferChannel chan, org.apache.jena.dboe.base.block.BlockMgr blkMgrNodes, org.apache.jena.dboe.base.block.BlockMgr blkMgrLeaves)	Reset an existing B+Tree with different storage units.

Methods inherited from class java.lang.Object

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

Method Detail

create

public static BPlusTree create(ComponentId id,
                               BPlusTreeParams params,
                               org.apache.jena.dboe.base.file.BufferChannel chan,
                               org.apache.jena.dboe.base.block.BlockMgr blkMgrNodes,
                               org.apache.jena.dboe.base.block.BlockMgr blkMgrLeaves)

Create the java structures to correspond to the supplied block managers for the persistent storage. Initialize the persistent storage to the empty B+Tree if it does not exist. This is primitive operation that underpins creation of a sB+Tree.

createNonTxn

public static BPlusTree createNonTxn(BPlusTreeParams params,
                                     org.apache.jena.dboe.base.file.BufferChannel chan,
                                     org.apache.jena.dboe.base.block.BlockMgr blkMgrNodes,
                                     org.apache.jena.dboe.base.block.BlockMgr blkMgrLeaves)

Create the java structures to correspond to the supplied block managers for the persistent storage. Initialize the persistent storage to the empty B+Tree if it does not exist.

rebuild

public static BPlusTree rebuild(BPlusTree bpt,
                                org.apache.jena.dboe.base.file.BufferChannel chan,
                                org.apache.jena.dboe.base.block.BlockMgr blkMgrNodes,
                                org.apache.jena.dboe.base.block.BlockMgr blkMgrLeaves)

Reset an existing B+Tree with different storage units. For each, null means "use same as original"

makeBPlusTree

public static RangeIndex makeBPlusTree(ComponentId cid,
                                       org.apache.jena.dboe.base.file.FileSet fs,
                                       int blkSize,
                                       int readCacheSize,
                                       int writeCacheSize,
                                       int dftKeyLength,
                                       int dftValueLength)

makeRecordFactory

public static org.apache.jena.dboe.base.record.RecordFactory makeRecordFactory(int keyLen,
                                                                               int valueLen)

createBPTree

public static BPlusTree createBPTree(ComponentId cid,
                                     org.apache.jena.dboe.base.file.FileSet fileset,
                                     org.apache.jena.dboe.base.record.RecordFactory factory)

Create a B+Tree using defaults

createBPTreeByBlockSize

public static BPlusTree createBPTreeByBlockSize(ComponentId cid,
                                                org.apache.jena.dboe.base.file.FileSet fileset,
                                                int blockSize,
                                                int readCacheSize,
                                                int writeCacheSize,
                                                org.apache.jena.dboe.base.record.RecordFactory factory)

Create a B+Tree by BlockSize

createBPTreeByOrder

public static BPlusTree createBPTreeByOrder(ComponentId cid,
                                            org.apache.jena.dboe.base.file.FileSet fileset,
                                            int order,
                                            int readCacheSize,
                                            int writeCacheSize,
                                            org.apache.jena.dboe.base.record.RecordFactory factory)

Create a B+Tree by Order

createBPTreeByOrder

public static BPlusTree createBPTreeByOrder(ComponentId cid,
                                            org.apache.jena.dboe.base.file.FileSet fileset,
                                            int order,
                                            org.apache.jena.dboe.base.record.RecordFactory factory)

Create a B+Tree by Order

createBPTree

public static BPlusTree createBPTree(ComponentId cid,
                                     org.apache.jena.dboe.base.file.FileSet fileset,
                                     int order,
                                     int blockSize,
                                     int readCacheSize,
                                     int writeCacheSize,
                                     org.apache.jena.dboe.base.record.RecordFactory factory)

Knowing all the parameters, create a B+Tree

makeMem

public static BPlusTree makeMem(int order,
                                int keyLength,
                                int valueLength)

(Testing mainly) Make an in-memory B+Tree, with copy-in, copy-out block managers

makeMem

public static BPlusTree makeMem(java.lang.String name,
                                int order,
                                int keyLength,
                                int valueLength)

(Testing mainly) Make an in-memory B+Tree, with copy-in, copy-out block managers

makeMem

public static BPlusTree makeMem(int order,
                                int minDataRecords,
                                int keyLength,
                                int valueLength)

(Testing mainly) Make an in-memory B+Tree, with copy-in, copy-out block managers

makeMem

public static BPlusTree makeMem(java.lang.String name,
                                int order,
                                int minDataRecords,
                                int keyLength,
                                int valueLength)

(Testing mainly) Make an in-memory B+Tree, with copy-in, copy-out block managers

addTracking

public static BPlusTree addTracking(BPlusTree bpTree)

Debugging

addLogging

public static BPlusTree addLogging(BPlusTree bpTree)

Debugging