Package com._1c.g5.v8.xmdb

Interface TransactionalKVS<K,V>

All Superinterfaces:

KeyValueStorage<K,V>

All Known Implementing Classes:

TransactionalKVSImpl

public interface TransactionalKVS<K,V>
extends KeyValueStorage<K,V>

Wrapper around standart KeyValueStorage with transactional features (merge, commit, rollback)

Method Summary

Modifier and Type	Method	Description
void	commit()	Commit changes from last merge operation
int	getMergeRebuildBorder()	Get merge rebuild border.
KeyValueStorage<K,V>	getPrimaryStorage()	Get base index
void	merge(KeyValueStorage<K,V> updates)	Merge updates into base index If updates contain entry with empty (=null) value - key will be removed from base index
void	merge(Map<K,V> updates)	Merge updates into base index If updates contain entry with empty (=null) value - key will be removed from base index
void	mergeCommit(KeyValueStorage<K,V> updates)	Merge&commit updates - fastest, but less integrity safe method to bulk update index
void	mergeCommit(Map<K,V> updates)	merge&commit updates - fastest, but less integrity safe method to bulk update index
void	rollback()	Rollback changes from last uncommited merge operation
void	setMergeRebuildBorder(int mergeRebuildBorder)	Set merge rebuild border (see getMergeRebuildBorder)

Methods inherited from interface com._1c.g5.v8.xmdb.KeyValueStorage

clear, clone, cloneHeader, close, contains, contains, dropCaches, entrySet, evict, get, get, getCache, getSegment, keySet, merge, merge, put, put, putRAW, remove, remove, serialize, size, sync

Method Details

merge

void merge(KeyValueStorage<K,V> updates)

Merge updates into base index If updates contain entry with empty (=null) value - key will be removed from base index

Parameters:

updates - updates to merge

merge

void merge(Map<K,V> updates)

Merge updates into base index If updates contain entry with empty (=null) value - key will be removed from base index

Parameters:

updates - updates to merge

rollback

void rollback()
       throws DBException

Rollback changes from last uncommited merge operation

Throws:

DBException

commit

void commit()
     throws DBException

Commit changes from last merge operation

Throws:

DBException

getPrimaryStorage

KeyValueStorage<K,V> getPrimaryStorage()

Get base index

Returns:

KeyValueStorage

getMergeRebuildBorder

int getMergeRebuildBorder()

Get merge rebuild border. Value (in percent) show how many updates need to full rebuild of base index. If updates have less size - it will be merge by simple put into base index (on mergeCommit method) or base index clone (on merge method)

Returns:

merge rebuld border

setMergeRebuildBorder

void setMergeRebuildBorder(int mergeRebuildBorder)

Set merge rebuild border (see getMergeRebuildBorder)

Parameters:

mergeRebuildBorder - merge rebuild border

mergeCommit

void mergeCommit(KeyValueStorage<K,V> updates)

Merge&commit updates - fastest, but less integrity safe method to bulk update index

Parameters:

updates - updates

mergeCommit

void mergeCommit(Map<K,V> updates)

merge&commit updates - fastest, but less integrity safe method to bulk update index

Parameters:

updates - updates