On Java functional programming-CodePudding

Using Java read secondary database, returns an org. Secondary. Driver. The Result type, need to be converted into List And found that there were & lt; T> List The list (Function Var1), the functional programming, should how to call, please?

 
Public Result selectChild (Long departmentId) {

Try {
Map ParamentMap=Collections. SingletonMap (" departmentId ", departmentId); 

String sqlText="MATCH (N: WechatDepartment) - [child] - & gt; (M: WechatDepartment) \ n + "
"WHERE N.d epartmentId={departmentId} \ n" + 
"RETURN ID (M) as ID, m. epartmentId as departmentId, M.n ame as the name, M.o rder as order, M.e nable as enable"; 

//returns an org. Secondary. Driver. The Result type 
Result the Result=session. The run (sqlText paramentMap); 

//needs into List 

//1 List< method; Record> The list (); 
List Records.=the result list (); 

//method 2 & lt; T> List The list (Function Var1) 
????? 


return result; 
} the catch (Exception e) {
System.out.println(e); 
Throw e; 
} the finally {
//the session. The close (); 
} 
}

 
Public interface Result extends Iterator {
List Keys (); 

Boolean hasNext (); 

Record next (); 

Record in use () throws NoSuchRecordException; 

Record the peek (); 

Stream The stream (); 

List The list (); 

 List The list (Function Var1); 

ResultSummary consume (); 
}

CodePudding user response:

You can define a Function object, and then passed to the method of list

Function GetWechatDepartmenList=record - & gt; {
The return from pumped WechatDepartment logical record;
//such as WechatDepartment department=new WechatDepartment ();
Department. Elegantly-named setName (record. GetName)
Department. SetCode (record. GetDeptCode);
Return department;
}

List The departments.=the result list (getWechatDepartment);