mybatis原理_mybatis和ibatis区别_mybatis基本工作原理(7)

publicfinalclassEnvironment{

privatefinalStringid;

privatefinalTransactionFactorytransactionFactory;

privatefinalDataSourcedataSource;

publicEnvironment(Stringid,TransactionFactorytransactionFactory,DataSourcedataSource){

if(id==null){

thrownewIllegalArgumentException("Parameter'id'mustnotbenull");

}

if(transactionFactory==null){

thrownewIllegalArgumentException("Parameter'transactionFactory'mustnotbenull");

}

this.id=id;

if(dataSource==null){

thrownewIllegalArgumentException("Parameter'dataSource'mustnotbenull");

}

this.transactionFactory=transactionFactory;

this.dataSource=dataSource;

}

publicstaticclassBuilder{

privateStringid;

privateTransactionFactorytransactionFactory;

privateDataSourcedataSource;

publicBuilder(Stringid){

this.id=id;

}

publicBuildertransactionFactory(TransactionFactorytransactionFactory){

this.transactionFactory=transactionFactory;

returnthis;

}

publicBuilderdataSource(DataSourcedataSource){

this.dataSource=dataSource;

returnthis;

}

publicStringid(){

returnthis.id;

}

publicEnvironmentbuild(){

returnnewEnvironment(this.id,this.transactionFactory,this.dataSource);

}

}

publicStringgetId(){

returnthis.id;

}

publicTransactionFactorygetTransactionFactory(){

returnthis.transactionFactory;

}

publicDataSourcegetDataSource(){

returnthis.dataSource;

}

}

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