SpigotCore_Main/src/de/steamwar/sql/TeamTeilnahme.java

@@ -20,44 +20,35 @@
 package de.steamwar.sql;
 
 import java.sql.ResultSet;
-import java.sql.SQLException;
 import java.util.HashSet;
 import java.util.Set;
 
 public class TeamTeilnahme {
     private TeamTeilnahme(){}
 
+    private static final SQL.Statement byEventTeam = new SQL.Statement("SELECT * FROM TeamTeilnahme WHERE TeamID = ? AND EventID = ?");
+    private static final SQL.Statement byEvent = new SQL.Statement("SELECT * FROM TeamTeilnahme WHERE EventID = ?");
+    private static final SQL.Statement byTeam = new SQL.Statement("SELECT * FROM TeamTeilnahme WHERE TeamID = ?");
+
     public static boolean nimmtTeil(int teamID, int eventID){
-        try {
-            return SQL.select("SELECT * FROM TeamTeilnahme WHERE TeamID = ? AND EventID = ?", teamID, eventID).next();
-        } catch (SQLException e) {
-            throw new SecurityException("Could not perform select", e);
-        }
+        return byEvent.select(ResultSet::next, teamID, eventID);
     }
 
     public static Set<Team> getTeams(int eventID){
-        try {
-            ResultSet resultSet = SQL.select("SELECT * FROM TeamTeilnahme WHERE EventID = ?", eventID);
+        return byEvent.select(rs -> {
             Set<Team> teams = new HashSet<>();
-            while (resultSet.next()) {
-                teams.add(Team.get(resultSet.getInt("TeamID")));
-            }
+            while(rs.next())
+                teams.add(Team.get(rs.getInt("TeamID")));
             return teams;
-        } catch (SQLException e) {
-            throw new SecurityException("Could not perform select", e);
-        }
+        }, eventID);
     }
 
     public static Set<Event> getEvents(int teamID){
-        try {
-            ResultSet resultSet = SQL.select("SELECT * FROM TeamTeilnahme WHERE EventID = ?", teamID);
+        return byTeam.select(rs -> {
             Set<Event> events = new HashSet<>();
-            while (resultSet.next()) {
-                events.add(Event.get(resultSet.getInt("EventID")));
-            }
+            while(rs.next())
+                events.add(Event.get(rs.getInt("EventID")));
             return events;
-        } catch (SQLException e) {
-            throw new SecurityException("Could not perform select", e);
-        }
+        }, teamID);
     }
 }