Allow to use options in SQLConnectionPool.java

api/src/main/java/me/zort/sqllib/api/ISQLConnectionBuilder.java

@@ -0,0 +1,7 @@
+package me.zort.sqllib.api;
+
+public interface ISQLConnectionBuilder<C extends SQLConnection> {
+
+    C build(ISQLDatabaseOptions options);
+
+}

api/src/main/java/me/zort/sqllib/api/ISQLDatabaseOptions.java

@@ -0,0 +1,20 @@
+package me.zort.sqllib.api;
+
+import com.google.gson.Gson;
+import me.zort.sqllib.api.options.NamingStrategy;
+
+public interface ISQLDatabaseOptions {
+
+    void setAutoReconnect(boolean autoReconnect);
+    void setDebug(boolean debug);
+    void setLogSqlErrors(boolean logSqlErrors);
+    void setNamingStrategy(NamingStrategy namingStrategy);
+    void setGson(Gson gson);
+
+    boolean isAutoReconnect();
+    boolean isDebug();
+    boolean isLogSqlErrors();
+    NamingStrategy getNamingStrategy();
+    Gson getGson();
+
+}

api/src/main/java/me/zort/sqllib/api/cache/CacheManager.java

@@ -0,0 +1,25 @@
+package me.zort.sqllib.api.cache;
+
+import me.zort.sqllib.api.Query;
+import me.zort.sqllib.api.data.QueryResult;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public interface CacheManager {
+
+    void set(@NotNull Query query, @NotNull QueryResult result);
+    @Nullable QueryResult get(@NotNull Query query, boolean isExec);
+
+    static CacheManager noCache() {
+        return new CacheManager() {
+            @Override
+            public void set(@NotNull Query query, @NotNull QueryResult result) {
+            }
+            @Override
+            public @Nullable QueryResult get(@NotNull Query query, boolean isExec) {
+                return null;
+            }
+        };
+    }
+
+}

core/src/main/java/me/zort/sqllib/SQLConnectionBuilder.java

@@ -1,6 +1,8 @@
 package me.zort.sqllib;
 
 import lombok.RequiredArgsConstructor;
+import me.zort.sqllib.api.ISQLConnectionBuilder;
+import me.zort.sqllib.api.ISQLDatabaseOptions;
 import me.zort.sqllib.api.SQLEndpoint;
 import me.zort.sqllib.internal.Constants;
 import me.zort.sqllib.internal.exception.SQLDriverNotFoundException;
@@ -18,7 +20,7 @@
 import java.util.Objects;
 
 @SuppressWarnings("unused")
-public final class SQLConnectionBuilder implements Cloneable {
+public final class SQLConnectionBuilder implements ISQLConnectionBuilder<SQLDatabaseConnection>, Cloneable {
 
     public static @NotNull SQLConnectionBuilder of(String address, int port, String database, String username, String password) {
         return of(new DefaultSQLEndpoint(address + ":" + port, database, username, password));
@@ -74,11 +76,11 @@ public SQLConnectionBuilder(@Nullable SQLEndpoint endpoint) {
         return build(null);
     }
 
-    public @NotNull SQLDatabaseConnection build(@Nullable SQLDatabaseOptions options) {
+    public @NotNull SQLDatabaseConnection build(@Nullable ISQLDatabaseOptions options) {
         return build(driver, options);
     }
 
-    public @NotNull SQLDatabaseConnection build(@Nullable String driver, @Nullable SQLDatabaseOptions options) {
+    public @NotNull SQLDatabaseConnection build(@Nullable String driver, @Nullable ISQLDatabaseOptions options) {
         Objects.requireNonNull(endpoint, "Endpoint must be set!");
         Objects.requireNonNull(jdbc);
         if(driver == null) {

core/src/main/java/me/zort/sqllib/SQLDatabaseConnection.java

@@ -5,6 +5,7 @@
 import lombok.Getter;
 import me.zort.sqllib.api.Query;
 import me.zort.sqllib.api.SQLConnection;
+import me.zort.sqllib.api.cache.CacheManager;
 import me.zort.sqllib.api.data.QueryResult;
 import me.zort.sqllib.api.data.QueryRowsResult;
 import me.zort.sqllib.api.data.Row;
@@ -128,6 +129,13 @@ public SQLDatabaseConnection(final @NotNull SQLConnectionFactory connectionFacto
     @ApiStatus.Experimental
     @Nullable
     public abstract Transaction getTransaction();
+    /**
+     * Enabled caching for this connection.
+     *
+     * @param cacheManager Cache manager to use.
+     */
+    @ApiStatus.Experimental
+    public abstract void enableCaching(CacheManager cacheManager);
     public abstract boolean isTransactionActive();
     protected abstract DefsVals buildDefsVals(Object obj);
     public abstract boolean isLogSqlErrors();
@@ -141,19 +149,18 @@ public UpsertQuery save(final @NotNull String table, final @NotNull Object obj)
     public UpsertQuery save(final @NotNull Object obj) {
         DefsVals defsVals = buildDefsVals(obj);
         if(defsVals == null) return null;
-
         String[] defs = defsVals.getDefs();
         SQLDatabaseConnectionImpl.UnknownValueWrapper[] vals = defsVals.getVals();
-        UpsertQuery upsert = upsert().into(null, defs);
+        UpsertQuery upsertQuery = upsert().into(null, defs);
         for(SQLDatabaseConnectionImpl.UnknownValueWrapper wrapper : vals) {
-            upsert.appendVal(wrapper.getObject());
+            upsertQuery.appendVal(wrapper.getObject());
         }
-        SetStatement<InsertQuery> setStmt = upsert.onDuplicateKey();
+        SetStatement<InsertQuery> setStatement = upsertQuery.onDuplicateKey();
         for(int i = 0; i < defs.length; i++) {
-            setStmt.and(defs[i], vals[i].getObject());
+            setStatement.and(defs[i], vals[i].getObject());
         }
 
-        return (UpsertQuery) setStmt.getAncestor();
+        return (UpsertQuery) setStatement.getAncestor();
     }
 
     public QueryResult insert(final @NotNull String table, final @NotNull Object obj) {

core/src/main/java/me/zort/sqllib/SQLDatabaseConnectionImpl.java

@@ -2,9 +2,11 @@
 
 import com.google.gson.Gson;
 import lombok.*;
+import me.zort.sqllib.api.ISQLDatabaseOptions;
 import me.zort.sqllib.api.ObjectMapper;
 import me.zort.sqllib.api.Query;
 import me.zort.sqllib.api.StatementFactory;
+import me.zort.sqllib.api.cache.CacheManager;
 import me.zort.sqllib.api.data.QueryResult;
 import me.zort.sqllib.api.data.QueryRowsResult;
 import me.zort.sqllib.api.data.Row;
@@ -66,11 +68,12 @@ public class SQLDatabaseConnectionImpl extends PooledSQLDatabaseConnection {
     // --***-- Options & Utilities --***--
 
     @Getter
-    private final SQLDatabaseOptions options;
+    private final ISQLDatabaseOptions options;
     private final transient StatementMappingFactory mappingFactory;
     private final transient StatementMappingResultAdapter mappingResultAdapter;
     private final transient List<ErrorStateObserver> errorStateHandlers;
     private transient ObjectMapper objectMapper;
+    private transient CacheManager cacheManager;
     @Setter
     private transient Logger logger;
     @Getter(onMethod_ = {@Nullable, @ApiStatus.Experimental})
@@ -81,7 +84,7 @@ public class SQLDatabaseConnectionImpl extends PooledSQLDatabaseConnection {
      * Constructs new instance of this implementation with default
      * options.
      *
-     * @see SQLDatabaseConnectionImpl#SQLDatabaseConnectionImpl(SQLConnectionFactory, SQLDatabaseOptions)
+     * @see SQLDatabaseConnectionImpl#SQLDatabaseConnectionImpl(SQLConnectionFactory, ISQLDatabaseOptions)
      */
     public SQLDatabaseConnectionImpl(final @NotNull SQLConnectionFactory connectionFactory) {
         this(connectionFactory, null);
@@ -93,7 +96,7 @@ public SQLDatabaseConnectionImpl(final @NotNull SQLConnectionFactory connectionF
      * @param connectionFactory Factory to use while opening connection.
      * @param options Client options to use.
      */
-    public SQLDatabaseConnectionImpl(final @NotNull SQLConnectionFactory connectionFactory, @Nullable SQLDatabaseOptions options) {
+    public SQLDatabaseConnectionImpl(final @NotNull SQLConnectionFactory connectionFactory, @Nullable ISQLDatabaseOptions options) {
         super(connectionFactory);
         if (options == null) options = defaultOptions();
 
@@ -105,6 +108,8 @@ public SQLDatabaseConnectionImpl(final @NotNull SQLConnectionFactory connectionF
         this.transaction = null;
         this.logger = Logger.getGlobal();
 
+        enableCaching(CacheManager.noCache());
+
         // Default backup value resolvers.
         registerBackupValueResolver(new LinkedOneFieldResolver());
         registerBackupValueResolver(new ConstructorParameterResolver());
@@ -143,6 +148,17 @@ public void addErrorHandler(final @NotNull ErrorStateObserver observer) {
         this.errorStateHandlers.add(observer);
     }
 
+    /**
+     * Enabled caching for this connection.
+     *
+     * @param cacheManager Cache manager to use.
+     */
+    @ApiStatus.Experimental
+    @Override
+    public void enableCaching(CacheManager cacheManager) {
+        this.cacheManager = cacheManager;
+    }
+
     /**
      * Constructs a mapping proxy based on provided interface.
      * The interface should follow rules for creating mapping repositories
@@ -292,11 +308,16 @@ public QueryRowsResult<Row> query(final @NotNull String query) {
         return query(() -> query);
     }
 
-    @NotNull QueryRowsResult<Row> query(final @NotNull Query query, boolean isRetry) {
+    @SuppressWarnings("unchecked")
+    @NotNull
+    QueryRowsResult<Row> query(final @NotNull Query query, boolean isRetry) {
         Objects.requireNonNull(query);
         if(!handleAutoReconnect())
             return new QueryRowsResult<>(false, "Cannot connect to database!");
 
+        QueryResult cachedResult = cacheManager.get(query, false);
+        if (cachedResult instanceof QueryRowsResult) return (QueryRowsResult<Row>) cachedResult;
+
         try(PreparedStatement stmt = buildStatement(query);
             ResultSet resultSet = stmt.executeQuery()) {
             QueryRowsResult<Row> result = new QueryRowsResult<>(true);
@@ -311,6 +332,8 @@ public QueryRowsResult<Row> query(final @NotNull String query) {
                 result.add(row);
             }
 
+            cacheManager.set(query, result);
+
             return result;
         } catch (SQLException e) {
             if (!isRetry && e.getMessage().contains("database connection closed")) {
@@ -347,9 +370,15 @@ public QueryResult exec(final @NotNull String query) {
         if(!handleAutoReconnect()) {
             return new QueryResultImpl(false, "Cannot connect to database!");
         }
+
+        QueryResult cachedResult = cacheManager.get(query, true);
+        if (cachedResult != null) return cachedResult;
+
         try(PreparedStatement stmt = buildStatement(query)) {
             stmt.execute();
-            return new QueryResultImpl(true);
+            QueryResultImpl result = new QueryResultImpl(true);
+            cacheManager.set(query, result);
+            return result;
         } catch (SQLException e) {
             if (!isRetry && e.getMessage().contains("database connection closed")) {
                 reconnect();

core/src/main/java/me/zort/sqllib/SQLDatabaseOptions.java

@@ -4,6 +4,7 @@
 import lombok.AllArgsConstructor;
 import lombok.Data;
 import lombok.NoArgsConstructor;
+import me.zort.sqllib.api.ISQLDatabaseOptions;
 import me.zort.sqllib.api.options.NamingStrategy;
 import me.zort.sqllib.internal.Defaults;
 import me.zort.sqllib.internal.impl.DefaultNamingStrategy;
@@ -12,7 +13,7 @@
 @AllArgsConstructor
 @NoArgsConstructor
 @Data
-public final class SQLDatabaseOptions {
+public final class SQLDatabaseOptions implements ISQLDatabaseOptions {
 
     private boolean autoReconnect = true;
     private boolean debug = false;
@@ -27,12 +28,12 @@ public final class SQLDatabaseOptions {
      */
     @SuppressWarnings("unused")
     public void load(final @NotNull SQLDatabaseConnectionImpl connection) {
-        SQLDatabaseOptions options = connection.getOptions();
-        this.autoReconnect = options.autoReconnect;
-        this.debug = options.debug;
-        this.logSqlErrors = options.logSqlErrors;
-        this.namingStrategy = options.namingStrategy;
-        this.gson = options.gson;
+        ISQLDatabaseOptions options = connection.getOptions();
+        this.autoReconnect = options.isAutoReconnect();
+        this.debug = options.isDebug();
+        this.logSqlErrors = options.isLogSqlErrors();
+        this.namingStrategy = options.getNamingStrategy();
+        this.gson = options.getGson();
     }
 
 }

core/src/main/java/me/zort/sqllib/SQLiteDatabaseConnectionImpl.java

@@ -1,5 +1,6 @@
 package me.zort.sqllib;
 
+import me.zort.sqllib.api.ISQLDatabaseOptions;
 import me.zort.sqllib.api.Query;
 import me.zort.sqllib.api.data.QueryResult;
 import me.zort.sqllib.api.data.QueryRowsResult;
@@ -29,8 +30,7 @@ public SQLiteDatabaseConnectionImpl(final @NotNull SQLConnectionFactory connecti
         super(connectionFactory);
     }
 
-    public SQLiteDatabaseConnectionImpl(final @NotNull SQLConnectionFactory connectionFactory,
-                                        @Nullable SQLDatabaseOptions options) {
+    public SQLiteDatabaseConnectionImpl(final @NotNull SQLConnectionFactory connectionFactory, @Nullable ISQLDatabaseOptions options) {
         super(connectionFactory, options);
     }
 

core/src/main/java/me/zort/sqllib/TableSchemaBuilder.java

@@ -2,6 +2,7 @@
 
 import com.google.gson.internal.Primitives;
 import lombok.RequiredArgsConstructor;
+import me.zort.sqllib.api.ISQLDatabaseOptions;
 import me.zort.sqllib.internal.annotation.JsonField;
 import me.zort.sqllib.internal.annotation.NullableField;
 import me.zort.sqllib.internal.annotation.PrimaryKey;
@@ -38,7 +39,7 @@ public String[] buildDefsFromType() {
         }
         debug("Building defs from type class: " + typeClass.getName());
 
-        SQLDatabaseOptions options = ((SQLDatabaseConnectionImpl) connection).getOptions();
+        ISQLDatabaseOptions options = ((SQLDatabaseConnectionImpl) connection).getOptions();
         String[] defs = new String[0];
 
         for (Field field : typeClass.getDeclaredFields()) {

core/src/main/java/me/zort/sqllib/cache/ExpirableEntriesCacheManager.java

@@ -0,0 +1,20 @@
+package me.zort.sqllib.cache;
+
+import me.zort.sqllib.api.Query;
+import me.zort.sqllib.api.cache.CacheManager;
+import me.zort.sqllib.api.data.QueryResult;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+public class ExpirableEntriesCacheManager implements CacheManager {
+    @Override
+    public void set(@NotNull Query query, @NotNull QueryResult result) {
+        // TODO: Implement
+    }
+
+    @Override
+    public @Nullable QueryResult get(@NotNull Query query, boolean isExec) {
+        // TODO: Implement
+        return null;
+    }
+}

core/src/main/java/me/zort/sqllib/internal/query/QueryNode.java

@@ -31,8 +31,8 @@ public abstract class QueryNode<P extends QueryNode<?>> implements Query, Statem
     @Getter(onMethod_ = {@Nullable})
     private final transient P parent;
     private final List<QueryNode<?>> children;
-    private final int priority;
     private final Map<String, QueryDetails> details;
+    private final int priority;
 
     public QueryNode(@Nullable P parent, List<QueryNode<?>> initial, QueryPriority priority) {
         this(parent, initial, priority.getPrior());
@@ -75,7 +75,7 @@ public String buildQuery() {
 
     public QueryDetails buildInnerQuery() {
         List<QueryNode<?>> children = new ArrayList<>(this.children);
-        Collections.sort(children, Comparator.comparingInt(QueryNode::getPriority));
+        children.sort(Comparator.comparingInt(QueryNode::getPriority));
 
         QueryDetails details = new QueryDetails("", new HashMap<>());
 
@@ -115,14 +115,18 @@ protected <T> T invokeToConnection(Function<SQLDatabaseConnection, T> func)
         return result;
     }
 
-    @SuppressWarnings("unchecked")
     public QueryNode<?> then(String part) {
         int maxPriority = children.stream()
                 .map(QueryNode::getPriority)
                 .max(Comparator.naturalOrder())
                 .orElse(0);
 
-        then(new LocalQueryNode(this, maxPriority + 1, part));
+        then(new QueryNode<QueryNode<?>>(parent, Collections.emptyList(), maxPriority + 1) {
+            @Override
+            public QueryDetails buildQueryDetails() {
+                return new QueryDetails(part, new HashMap<>());
+            }
+        });
         return this;
     }
 
@@ -190,19 +194,4 @@ private void debug(String message) {
         }
     }
 
-    private static class LocalQueryNode extends QueryNode {
-
-        private final String queryPartString;
-
-        public LocalQueryNode(@Nullable QueryNode parent, int priority, String queryPartString) {
-            super(parent, Collections.emptyList(), priority);
-            this.queryPartString = queryPartString;
-        }
-
-        @Override
-        public QueryDetails buildQueryDetails() {
-            return new QueryDetails(queryPartString, new HashMap<>());
-        }
-    }
-
 }