我有一个接口,它代表了我想要用区块链做什么。
public interface IBlockChain {
/**
* Put data on the blockchain
*
* @param key the key being used to put the data on the blockchain
* @param data the data being put on the blockchain
*/
public boolean put(String key, Map<String, Object>
大家好,我是hyperledger composer的新手,我一直在按照他们的教程来创建CTO模型。我不明白条件标签是用来做什么的?举个例子,
rule R3_TradersSeeOwnHistoryOnly {
description: "Traders should be able to see the history of their own transactions only"
participant(t): "org.example.trading.Trader"
operation: READ
resource(v): "o