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package com.jd.blockchain.ledger;

import com.jd.binaryproto.DataContract;
import com.jd.binaryproto.DataField;
import com.jd.binaryproto.PrimitiveType;
import com.jd.blockchain.consts.DataCodes;
import com.jd.blockchain.crypto.HashDigest;

/**
 * 交易内容；
 * 
 * @author huanghaiquan
 *
 */
@DataContract(code = DataCodes.TX_CONTENT)
public interface TransactionContent {
	
	/**
	 * 执行交易的账本地址；
	 * 
	 * 注：除了账本的创世交易之外，任何交易的账本地址都不允许为 null;
	 *
	 * @return
	 */
	@DataField(order = 1, primitiveType = PrimitiveType.BYTES)
	HashDigest getLedgerHash();

	/**
	 * 操作列表；
	 * 
	 * @return
	 */
	@DataField(order = 2, list = true, refContract = true, genericContract = true)
	Operation[] getOperations();

	/**
	 * 生成交易的时间；

	 * 以毫秒为单位，表示距离 1970-1-1 00:00:00 (UTC) 的毫秒数；

	 * 
	 * @return
	 */
	@DataField(order = 3, primitiveType = PrimitiveType.INT64)
	long getTimestamp();

}