Package com._1c.g5.v8.xmdb

Class IndexBuilder

java.lang.Object

com._1c.g5.v8.xmdb.IndexBuilder

public class IndexBuilder
extends Object

Class to create/load indexes

Constructor Summary

Constructors

Constructor	Description
IndexBuilder()

Method Summary

Modifier and Type	Method	Description
KeyValueStorage<?,byte[]>	buildIndex(Database db, String name)	Build index with current index builder state parameters on specified database with specified name If index with same name already in specified database - it will be overrided.
static IndexBuilder	getBuilder()	Return index bulder with default parameters
IndexBuilder	setMergeSeparator(int mergeSeparator)	Set merge separator
IndexBuilder	setPreallocateFreeSpace(int preallocateFreeSpace)	Set preallocated space size (in bytes)
IndexBuilder	setSplitSeparator(int splitSeparator)	Set split separator
IndexBuilder	setT(int t)	Set T - with of BTree nodes
IndexBuilder	setThreadSafe(boolean threadSafe)	Set thread safe in index level
IndexBuilder	setValInLeaf(boolean valInLeaf)	Set value in leaf flag
IndexBuilder	setValType(byte valType)	Set value type
static TransactionalKVS<?,byte[]>	wrapTransactional(KeyValueStorage<?,byte[]> kvs, Database database, String name)	Wrap existed index to add transactional features

Methods inherited from class java.lang.Object

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

Constructor Detail

IndexBuilder

public IndexBuilder()

Method Detail

getBuilder

public static IndexBuilder getBuilder()

Return index bulder with default parameters

Returns:

index builder

setValInLeaf

public IndexBuilder setValInLeaf(boolean valInLeaf)

Set value in leaf flag

Parameters:

valInLeaf - value in leaf flag

Returns:

current object to chaining

setSplitSeparator

public IndexBuilder setSplitSeparator(int splitSeparator)

Set split separator

Parameters:

splitSeparator - split separator

Returns:

current object to chaining

setMergeSeparator

public IndexBuilder setMergeSeparator(int mergeSeparator)

Set merge separator

Parameters:

mergeSeparator - merge separator

Returns:

current object to chaining

setT

public IndexBuilder setT(int t)

Set T - with of BTree nodes

Parameters:

t - with of BTree nodes

Returns:

current object to chaining

setPreallocateFreeSpace

public IndexBuilder setPreallocateFreeSpace(int preallocateFreeSpace)

Set preallocated space size (in bytes)

Parameters:

preallocateFreeSpace - preallocated space size

Returns:

current object to chaining

setThreadSafe

public IndexBuilder setThreadSafe(boolean threadSafe)

Set thread safe in index level

Parameters:

threadSafe - thread safe flag

Returns:

current object to chaining

setValType

public IndexBuilder setValType(byte valType)

Set value type

Parameters:

valType - value type

Returns:

current object to chaining

buildIndex

public KeyValueStorage<?,byte[]> buildIndex(Database db,
                                                  String name)

Build index with current index builder state parameters on specified database with specified name If index with same name already in specified database - it will be overrided.

Parameters:

db - database where index should be created

name - index name

Returns:

new index

wrapTransactional

public static final TransactionalKVS<?,byte[]> wrapTransactional(KeyValueStorage<?,byte[]> kvs,
                                                                       Database database,
                                                                       String name)

Wrap existed index to add transactional features

Parameters:

kvs - index to wrap

database - database where kvs index placed

name - name of kvs index

Returns:

transactional wrapper of kvs index