src/de/steamwar/sql/NodeMember.java

@@ -37,8 +37,8 @@ public class NodeMember {
 
     private static final Table<NodeMember> table = new Table<>(NodeMember.class);
     private static final SelectStatement<NodeMember> getNodeMember = table.select(Table.PRIMARY);
-    private static final SelectStatement<NodeMember> getNodeMembers = table.selectFields("Node");
+    private static final SelectStatement<NodeMember> getNodeMembers = table.selectFields("NodeId");
-    private static final SelectStatement<NodeMember> getSchematics = table.selectFields("Member");
+    private static final SelectStatement<NodeMember> getSchematics = table.selectFields("UserId");
     private static final Statement create = table.insertAll();
     private static final Statement delete = table.delete(Table.PRIMARY);
 
@@ -47,11 +47,11 @@ public class NodeMember {
     @Field(keys = {Table.PRIMARY})
     private final int userId;
 
-    public int getNodeId() {
+    public int getNode() {
         return nodeId;
     }
 
-    public int getUserId() {
+    public int getMember() {
         return userId;
     }
 

src/de/steamwar/sql/SchematicNode.java

@@ -139,7 +139,7 @@ public class SchematicNode {
     public static SchematicNode createSchematicNode(int owner, String name, Integer parent, String type, String item) {
         if (parent != null && parent == 0)
             parent = null;
-        int nodeId = create.insertGetKey(owner, name, parent, type, item);
+        int nodeId = create.insertGetKey(owner, name, parent, item, type);
         return getSchematicNode(nodeId);
     }
 
@@ -447,7 +447,7 @@ public class SchematicNode {
 
     private void updateDB() {
         this.lastUpdate = Timestamp.from(Instant.now());
-        update.update(nodeId, nodeOwner, nodeName, parentNode, nodeItem, nodeType, lastUpdate, nodeRank, replaceColor, allowReplay, nodeFormat);
+        update.update(nodeId, nodeOwner, nodeName, parentNode, lastUpdate, nodeItem, nodeType, nodeRank, replaceColor, allowReplay, nodeFormat);
         this.brCache.clear();
         TAB_CACHE.clear();
     }
@@ -480,7 +480,7 @@ public class SchematicNode {
         final Set<NodeMember> nodeMembers = NodeMember.getSchematics(user.getId());
         AtomicInteger i = new AtomicInteger();
         i.set(currentNode.getId());
-        while (currentNode.getParentNode() != null && nodeMembers.stream().noneMatch(nodeMember -> nodeMember.getNodeId() == i.get())) {
+        while (currentNode.getParentNode() != null && nodeMembers.stream().noneMatch(nodeMember -> nodeMember.getNode() == i.get())) {
             currentNode = currentNode.getParentNode();
             i.set(currentNode.getId());
             builder.insert(0, split)

src/de/steamwar/sql/UserConfig.java

@@ -47,7 +47,8 @@ public class UserConfig {
     }
 
     public static String getConfig(int player, String config) {
-        return select.select(player, config).value;
+        UserConfig value = select.select(player, config);
+        return value != null ? value.value : null;
     }
 
     public static void updatePlayerConfig(UUID uuid, String config, String value) {

src/de/steamwar/sql/internal/SqlTypeMapper.java

@@ -19,6 +19,7 @@
 
 package de.steamwar.sql.internal;
 
+import java.io.InputStream;
 import java.sql.PreparedStatement;
 import java.sql.ResultSet;
 import java.sql.SQLException;
@@ -63,6 +64,7 @@ public final class SqlTypeMapper<T> {
         primitiveMapper(double.class, Double.class, "REAL", ResultSet::getDouble, PreparedStatement::setDouble);
         new SqlTypeMapper<>(String.class, "TEXT", ResultSet::getString, PreparedStatement::setString);
         new SqlTypeMapper<>(Timestamp.class, "TIMESTAMP", ResultSet::getTimestamp, PreparedStatement::setTimestamp);
+        new SqlTypeMapper<>(InputStream.class, "BLOB", ResultSet::getBinaryStream, PreparedStatement::setBinaryStream);
     }
 
     private static <T> void primitiveMapper(Class<T> primitive, Class<T> wrapped, String sqlType, SQLReader<T> reader, SQLWriter<T> writer) {

src/de/steamwar/sql/internal/Statement.java

@@ -122,7 +122,6 @@ public class Statement implements AutoCloseable {
     }
 
     public Statement(String sql, boolean returnGeneratedKeys) {
-        System.out.println(sql);
         this.sql = sql;
         this.returnGeneratedKeys = returnGeneratedKeys;
         synchronized (statements) {
@@ -159,34 +158,35 @@ public class Statement implements AutoCloseable {
     private <T> T withConnection(SQLRunnable<T> runnable, Object... objects) {
         Connection connection = aquireConnection();
 
-        T result;
         try {
-            result = tryWithConnection(connection, runnable, objects);
-        } catch (SQLException e) {
             try {
-                if(connection.isClosed() || !connection.isValid(1)) {
+                return tryWithConnection(connection, runnable, objects);
+            } finally {
+                if(connectionInvalid(connection)) {
                     closeConnection(connection);
-                    return withConnection(runnable, objects);
+                } else {
-                }
-            } catch (SQLException ex) {
-                closeConnection(connection);
-                throw new SecurityException("Could not test connection validity", ex);
-            }
-
                     synchronized (connections) {
                         connections.push(connection);
                         connections.notify();
                     }
-
+                }
+            }
+        } catch (SQLException e) {
+            if(connectionInvalid(connection)) {
+                return withConnection(runnable, objects);
+            } else {
                 throw new SecurityException("Failing sql statement", e);
             }
-
+        }
-        synchronized (connections) {
-            connections.push(connection);
-            connections.notify();
     }
 
-        return result;
+    private boolean connectionInvalid(Connection connection) {
+        try {
+            return connection.isClosed();
+        } catch (SQLException e) {
+            logger.log(Level.INFO, "Could not check SQL connection status", e); // No database logging possible at this state
+            return true;
+        }
     }
 
     private <T> T tryWithConnection(Connection connection, SQLRunnable<T> runnable, Object... objects) throws SQLException {
@@ -201,7 +201,10 @@ public class Statement implements AutoCloseable {
 
         for (int i = 0; i < objects.length; i++) {
             Object o = objects[i];
+            if(o != null)
                 SqlTypeMapper.getMapper(o.getClass()).write(st, i+1, o);
+            else
+                st.setNull(i+1, Types.NULL);
         }
 
         return runnable.run(st);

src/de/steamwar/sql/internal/Table.java

@@ -75,7 +75,7 @@ public class Table<T> {
     }
 
     public Statement updateFields(String[] fields, String... kfields) {
-        return new Statement("UPDATE " + name + " SET " + Arrays.stream(fields).map(f -> f + " = ?").collect(Collectors.joining(", ")) + " WHERE " + Arrays.stream(kfields).map(f -> f + " = ?").collect(Collectors.joining(", ")));
+        return new Statement("UPDATE " + name + " SET " + Arrays.stream(fields).map(f -> f + " = ?").collect(Collectors.joining(", ")) + " WHERE " + Arrays.stream(kfields).map(f -> f + " = ?").collect(Collectors.joining(" AND ")));
     }
 
     public Statement insert(String name) {
@@ -100,7 +100,7 @@ public class Table<T> {
     }
 
     public Statement deleteFields(String... kfields) {
-        return new Statement("DELETE FROM " + name + " WHERE " + Arrays.stream(kfields).map(f -> f + " = ?").collect(Collectors.joining(", ")));
+        return new Statement("DELETE FROM " + name + " WHERE " + Arrays.stream(kfields).map(f -> f + " = ?").collect(Collectors.joining(" AND ")));
     }
 
     void ensureExistanceInSqlite() {