From a308f430f694423064ebc86fd0506c8c6fdb3d93 Mon Sep 17 00:00:00 2001
From: Unit 193 <unit193@ubuntu.com>
Date: Sun, 19 Apr 2015 22:30:21 -0400
Subject: Imported Upstream version 3.0.5

---
 SQLiteStudio3/coreSQLiteStudio/schemaresolver.h | 28 +++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

(limited to 'SQLiteStudio3/coreSQLiteStudio/schemaresolver.h')

diff --git a/SQLiteStudio3/coreSQLiteStudio/schemaresolver.h b/SQLiteStudio3/coreSQLiteStudio/schemaresolver.h
index 5316f5a..5d325d8 100644
--- a/SQLiteStudio3/coreSQLiteStudio/schemaresolver.h
+++ b/SQLiteStudio3/coreSQLiteStudio/schemaresolver.h
@@ -14,6 +14,7 @@
 #include "db/sqlquery.h"
 #include "db/db.h"
 #include "common/strhash.h"
+#include "common/expiringcache.h"
 #include <QStringList>
 
 class SqliteCreateTable;
@@ -38,6 +39,24 @@ class API_EXPORT SchemaResolver
             QString ddl;
         };
 
+        struct ObjectCacheKey
+        {
+            enum Type
+            {
+                OBJECT_NAMES,
+                OBJECT_DETAILS,
+                OBJECT_DDL
+            };
+
+            ObjectCacheKey(Type type, Db* db, const QString& value1 = QString(), const QString& value2 = QString(), const QString& value3 = QString());
+
+            Type type;
+            Db* db;
+            QString value1;
+            QString value2;
+            QString value3;
+        };
+
         explicit SchemaResolver(Db* db);
         virtual ~SchemaResolver();
 
@@ -164,8 +183,12 @@ class API_EXPORT SchemaResolver
 
         static QString objectTypeToString(ObjectType type);
         static ObjectType stringToObjectType(const QString& type);
+        static void staticInit();
+
+        static_char* USE_SCHEMA_CACHING = "useSchemaCaching";
 
     private:
+        bool usesCache();
         SqliteQueryPtr getParsedDdl(const QString& ddl);
         SqliteCreateTablePtr virtualTableAsRegularTable(const QString& database, const QString& table);
         StrHash< QStringList> getGroupedObjects(const QString &database, const QStringList& inputList, SqliteQueryType type);
@@ -180,8 +203,13 @@ class API_EXPORT SchemaResolver
         Parser* parser = nullptr;
         bool ignoreSystemObjects = false;
         Db::Flags dbFlags;
+
+        static ExpiringCache<ObjectCacheKey,QVariant> cache;
 };
 
+int qHash(const SchemaResolver::ObjectCacheKey& key);
+int operator==(const SchemaResolver::ObjectCacheKey& k1, const SchemaResolver::ObjectCacheKey& k2);
+
 template <class T>
 StrHash<QSharedPointer<T>> SchemaResolver::getAllParsedObjectsForType(const QString& database, const QString& type)
 {
-- 
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