/*
* Copyright (c) [2016] [ <ether.camp> ]
* 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 <http://www.gnu.org/licenses/>.
*/
package org.ethereum.facade;
import org.ethereum.core.Block;
import org.ethereum.core.Transaction;
import org.ethereum.db.BlockStore;
import java.math.BigInteger;
import java.util.List;
import java.util.Set;
public interface Blockchain {
/**
* Get block by number from the best chain
* @param number - number of the block
* @return block by that number
*/
Block getBlockByNumber(long number);
/**
* Get block by hash
* @param hash - hash of the block
* @return - bloc by that hash
*/
Block getBlockByHash(byte[] hash);
/**
* Get total difficulty from the start
* and until the head of the chain
*
* @return - total difficulty
*/
BigInteger getTotalDifficulty();
/**
* Get the underlying BlockStore
* @return Blockstore
*/
BlockStore getBlockStore();
/**
* @return - last added block from blockchain
*/
Block getBestBlock();
/**
* Flush the content of local storage objects to disk
*/
void flush();
}