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Java implementation of the Ethereum protocol adapted to use for Hedera Smart Contract Service
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/*
* Copyright (c) [2016] [ ]
* This file is part of the ethereumJ library.
*
* The ethereumJ library is free software: you can redistribute it and/or modify
* it under the terms of the GNU Lesser General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
*
* The ethereumJ library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public License
* along with the ethereumJ library. If not, see .
*/
package org.ethereum.db;
import org.ethereum.core.Block;
import org.ethereum.core.BlockHeader;
import java.math.BigInteger;
import java.util.List;
/**
* @author Roman Mandeleil
* @since 08.01.2015
*/
public interface BlockStore {
byte[] getBlockHashByNumber(long blockNumber);
/**
* Gets the block hash by its index.
* When more than one block with the specified index exists (forks)
* the select the block which is ancestor of the branchBlockHash
*/
byte[] getBlockHashByNumber(long blockNumber, byte[] branchBlockHash);
Block getChainBlockByNumber(long blockNumber);
Block getBlockByHash(byte[] hash);
boolean isBlockExist(byte[] hash);
List getListHashesEndWith(byte[] hash, long qty);
List getListHeadersEndWith(byte[] hash, long qty);
List getListBlocksEndWith(byte[] hash, long qty);
void saveBlock(Block block, BigInteger totalDifficulty, boolean mainChain);
BigInteger getTotalDifficultyForHash(byte[] hash);
BigInteger getTotalDifficulty();
Block getBestBlock();
long getMaxNumber();
void flush();
void reBranch(Block forkBlock);
void load();
void close();
}