Package org.bitcoinj.store

Class H2FullPrunedBlockStore

java.lang.Object

org.bitcoinj.store.DatabaseFullPrunedBlockStore

org.bitcoinj.store.H2FullPrunedBlockStore

All Implemented Interfaces:

UTXOProvider, BlockStore, FullPrunedBlockStore

public class H2FullPrunedBlockStore
extends DatabaseFullPrunedBlockStore

A full pruned block store using the H2 pure-java embedded database. Note that because of the heavy delete load on the database, during IBD, you may see the database files grow quite large (around 1.5G). H2 automatically frees some space at shutdown, so close()ing the database decreases the space usage somewhat (to only around 1.3G).

Field Summary

Fields inherited from class org.bitcoinj.store.DatabaseFullPrunedBlockStore

allConnections, chainHeadBlock, chainHeadHash, conn, connectionURL, fullStoreDepth, params, password, schemaName, username, verifiedChainHeadBlock, verifiedChainHeadHash

Constructor Summary

Constructors

Constructor	Description
H2FullPrunedBlockStore(NetworkParameters params, String dbName, int fullStoreDepth)	Creates a new H2FullPrunedBlockStore
H2FullPrunedBlockStore(NetworkParameters params, String dbName, int fullStoreDepth, int cacheSize)	Creates a new H2FullPrunedBlockStore with the given cache size
H2FullPrunedBlockStore(NetworkParameters params, String dbName, String username, String password, int fullStoreDepth)	Creates a new H2FullPrunedBlockStore, with given credentials for H2 database

Method Summary

Modifier and Type	Method	Description
protected List<String>	getCreateIndexesSQL()	Get the SQL statements that create the indexes (DDL).
protected List<String>	getCreateSchemeSQL()	Get the SQL statements that create the schema (DDL).
protected List<String>	getCreateTablesSQL()	Get the SQL statements that create the tables (DDL).
protected String	getDatabaseDriverClass()	Get the database driver class,
protected String	getDuplicateKeyErrorCode()	Get the database specific error code that indicated a duplicate key error when inserting a record.

Methods inherited from class org.bitcoinj.store.DatabaseFullPrunedBlockStore

abortDatabaseBatchWrite, addUnspentTransactionOutput, beginDatabaseBatchWrite, calculateBalanceForAddress, close, commitDatabaseBatchWrite, deleteStore, dumpSizes, get, get, getBalanceSelectSQL, getChainHead, getChainHeadHeight, getCompatibilitySQL, getDeleteOpenoutputsSQL, getDeleteUndoableBlocksSQL, getDropTablesSQL, getInsertHeadersSQL, getInsertOpenoutputsSQL, getInsertSettingsSQL, getInsertUndoableBlocksSQL, getOnceUndoableStoredBlock, getOpenTransactionOutputs, getParams, getSelectHeadersDumpSQL, getSelectHeadersSQL, getSelectOpenoutputsCountSQL, getSelectopenoutputsDumpSQL, getSelectOpenoutputsSQL, getSelectSettingsDumpSQL, getSelectSettingsSQL, getSelectUndoableblocksDumpSQL, getSelectUndoableBlocksSQL, getTablesExistSQL, getTransactionOutput, getTransactionOutputSelectSQL, getUndoBlock, getUpdateHeadersSQL, getUpdateSettingsSLQ, getUpdateUndoableBlocksSQL, getVerifiedChainHead, hasUnspentOutputs, maybeConnect, put, put, putUpdateStoredBlock, removeUnspentTransactionOutput, resetStore, setChainHead, setVerifiedChainHead

Methods inherited from class java.lang.Object

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

Constructor Details

H2FullPrunedBlockStore

public H2FullPrunedBlockStore(NetworkParameters params,
 String dbName,
 String username,
 String password,
 int fullStoreDepth)
                       throws BlockStoreException

Creates a new H2FullPrunedBlockStore, with given credentials for H2 database

Parameters:

params - A copy of the NetworkParameters used

dbName - The path to the database on disk

username - The username to use in the database

password - The username's password to use in the database

fullStoreDepth - The number of blocks of history stored in full (something like 1000 is pretty safe)

Throws:

BlockStoreException - if the database fails to open for any reason

H2FullPrunedBlockStore

public H2FullPrunedBlockStore(NetworkParameters params,
 String dbName,
 int fullStoreDepth)
                       throws BlockStoreException

Creates a new H2FullPrunedBlockStore

Parameters:

params - A copy of the NetworkParameters used

dbName - The path to the database on disk

fullStoreDepth - The number of blocks of history stored in full (something like 1000 is pretty safe)

Throws:

BlockStoreException - if the database fails to open for any reason

H2FullPrunedBlockStore

public H2FullPrunedBlockStore(NetworkParameters params,
 String dbName,
 int fullStoreDepth,
 int cacheSize)
                       throws BlockStoreException

Creates a new H2FullPrunedBlockStore with the given cache size

Parameters:

params - A copy of the NetworkParameters used

dbName - The path to the database on disk

fullStoreDepth - The number of blocks of history stored in full (something like 1000 is pretty safe)

cacheSize - The number of kilobytes to dedicate to H2 Cache (the default value of 16MB (16384) is a safe bet to achieve good performance/cost when importing blocks from disk, past 32MB makes little sense, and below 4MB sees a sharp drop in performance)

Throws:

BlockStoreException - if the database fails to open for any reason

Method Details

getDuplicateKeyErrorCode

protected String getDuplicateKeyErrorCode()

Description copied from class: DatabaseFullPrunedBlockStore

Get the database specific error code that indicated a duplicate key error when inserting a record.

This is the code returned by SQLException.getSQLState()

Specified by:

getDuplicateKeyErrorCode in class DatabaseFullPrunedBlockStore

Returns:

The database duplicate error code.

getCreateTablesSQL

protected List<String> getCreateTablesSQL()

Description copied from class: DatabaseFullPrunedBlockStore

Get the SQL statements that create the tables (DDL).

Specified by:

getCreateTablesSQL in class DatabaseFullPrunedBlockStore

Returns:

The list of SQL statements.

getCreateIndexesSQL

protected List<String> getCreateIndexesSQL()

Description copied from class: DatabaseFullPrunedBlockStore

Get the SQL statements that create the indexes (DDL).

Specified by:

getCreateIndexesSQL in class DatabaseFullPrunedBlockStore

Returns:

The list of SQL statements.

getCreateSchemeSQL

protected List<String> getCreateSchemeSQL()

Description copied from class: DatabaseFullPrunedBlockStore

Get the SQL statements that create the schema (DDL).

Specified by:

getCreateSchemeSQL in class DatabaseFullPrunedBlockStore

Returns:

The list of SQL statements.

getDatabaseDriverClass

protected String getDatabaseDriverClass()

Description copied from class: DatabaseFullPrunedBlockStore

Get the database driver class,

i.e org.postgresql.Driver.

Specified by:

getDatabaseDriverClass in class DatabaseFullPrunedBlockStore

Returns:

The fully qualified database driver class.