forked from paulnguyen/code
-
Notifications
You must be signed in to change notification settings - Fork 1
Expand file tree
/
Copy pathQueryTool.java
More file actions
49 lines (40 loc) · 1.24 KB
/
QueryTool.java
File metadata and controls
49 lines (40 loc) · 1.24 KB
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
import java.util.ArrayList;
import java.util.UUID;
public class QueryTool {
public class Query {
public QueryResults executeQuery(String query) {
System.out.println( "Executing Query: " + query );
QueryResults resultSet = new QueryResultsImpl() ;
resultSet.fetchData();
return resultSet ;
}
}
public QueryResults query(String str)
{
Query q = new Query() ;
QueryResults resultSet = q.executeQuery(str);
return resultSet ;
}
public ArrayList<String> map(QueryResults rs)
{
ArrayList<String> out = new ArrayList<>() ;
QueryResultsIterator iter = rs.createIterator() ;
while ( !iter.isDone() )
{
String key = UUID.randomUUID().toString();
if ( Integer.parseInt(iter.currentItem()) % 2 == 0 ) {
out.add( key + " => " + iter.currentItem() ) ;
}
iter.next();
}
return out ;
}
public static void main(String[] args) {
QueryTool q = new QueryTool() ;
QueryResults dataset = q.query( "select * from test" ) ;
ArrayList<String> mapset = q.map(dataset) ;
for (String item : mapset ) {
System.out.println( item ) ;
}
}
}